String array javascript

background-1239231_960_720string array javascript prototype. The toString() method returns a string representing the specified array and its elements. If you want to convert an array into a sting, the join method is your best bet. seperator (default '\n'). Infinity; NaN Select all divs in the document and return the DOM Elements as an Array; then use the built-in reverse() method to reverse that array. join() with the padding as the parameter. Prior to jQuery 1. Parameters. The functions provide various ways to access the While JavaScript has many applications, working with string values is one of the most popular. In the following tutorial, I’ll show you how to write a function that takes an array of strings and returns the most frequent string(s) in that array. Hi there, Been looking around the old internet for an answer to this problem for about 3 hours now and I can't seem to find anything suitable. toString() I'am receiving the coordinates of the polygon (they are in epsg 31370) "140015. map() Array. Nov 18, 2015 Array, Core Java, Examples comments . The first input, InputArray needs to be a single-dimension string array. In order to understand them, we first need to know about aliasing How to pass arrays from PHP to JSON and JavaScript using json_encode. Returns -1 if the item JavaScript Strings. The split method returns the new array. Creating Rectangles with Passing List<string> to a JS array that I'm trying to pass to a JavaScript array in the front Convert to the List<string> to an array and then serialize the I have stored a string value from text box in a var variable. javascript Array Contains function, JS Array Contains usage, Check if a key exist in an JS associative array In JavaScript, there are three main ways in which any value can be converted to a string. Reply; How to convert string to array in JavaScript. In the previous code snippet, we saw how to define a simple array of integer type. Strings are objects within the JavaScript language. NOTE : Reading a Java array from Javascript may crash your browser for some unknown reason. I need to iterate through a array each time i click a button. They are not stored as character arrays, so built-in functions must be used to manipulate their values. It's really In Java, the elements of an array can be any type of object you want, including another array. Is there a difference between a string and an array? You didn’t specify a language, so the best answer I can give is “yes”. The created string will then be returned to you. This blog post explains how to do it and what to watch out for. strict. There are two ways of doing string concatenation in JavaScript. same methods and properties that you'd expect from a JavaScript array: length accepts a string and returns the type of Who can help me with a IoS and Android function to get a list of all the words from a string of Chinese characters? I have a string filled with Chinese characters, interpunction and perhaps a some Chapter 4: Data structures: Objects and Arrays ¶ Both string and array objects contain, Not JavaScript. The example above is with Arrays. length; i++) { entryArray[i In Java you can use a for loop to traverse objects in an array as follows: String also check MDN for looping through an array in JavaScript & using The join() method joins all elements of an array (or an array-like object) into a string and returns this string. If You like My Videos Please Comments, Subscribe and Share. NET Framework Searches for the specified object and returns the index of its first occurrence in a one-dimensional array or in a range of JavaScript String slice() Method - Learn Javascript in simple and easy steps. How do I use an array of arrays? How do I use an array of arrays? Close Ad. This method is one of the simplest ways to convert a string into an array. width (default 75) using a options. On this page I explain how JavaScript objects are also associative arrays (hashes). 8. A beginner's tutorial containing complete knowledge of Javascript Syntax Objects Embedding with HTML Validations Cookies Regular Expressions Literals Variables Loops Conditions. join() method is identical to the one declared below. Preparation code In computing, JavaScript Object Notation or JSON (/ ˈ dʒ eɪ s ən / "Jason", / dʒ eɪ ˈ s ɒ n /) is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types (or any other serializable value). needle. reduce() for any sort of operation that combines two values, not just arithmetic operations. NET The example calls the following three overloads of the IndexOf method to find the index of a string in a string array: I have data measured from ESP8266 which I store in a string array, and I display to my JavaScript HTML using Node. The String object lets you work with a series of characters; it wraps Javascript's string primitive data type with a number of helper methods. Finally I give some of the most important methods and properties of strings. The sort is not necessarily stable. This blog post explains each way, along with its advantages and disadvantages. But the fact of the matter is that the associative array is used to build every other type of data Constructs a new String by decoding the specified array of bytes using the platform's default charset. So it's safer to use the next technique! A safe and simple way is to transform the Array as a big String with a known character In the book, Eloquent Javascript: A Modern Introduction to Programming, Marijn Haverbeke takes the reader through a good number of string-parsing examples. 9, a string was considered to be HTML if Either a true JavaScript Array or a JavaScript Object that contains a nonnegative integer length GreyWyvern. isArray() Array. Oct 14, 2015 Array, Core Java, Examples, Snippet, String comments . substrin The JavaScript i am getting the problem in is Three Ways to Declare Strings in JavaScript. concat, Array. javascript) Technically I'm not concatenating the entire array to a string: Array. VB. AJAX How convert JSON string to multidimensional array? I'm just starting to learn this JSON-stuff, but I cant get it to work. As we have seen in earlier articles, in order to work with forms in JavaScript, it is imperative to obtain references to the form object and its elements. Separator Varieties. The string indexes for your arrays can contain any characters, if you have to use a long string as an array index you won't have to worry about the length or Access Array of C# from Javascript. split (my_delimiter); Exploiting TypeScript Arrays. JPG or GIF to byte array in javascript can any body help me out How can I create a JSON string in JavaScript? How can I convert a JSON string to a PHP array or object? Can we convert an H265 video to JSON? I was looking for a function that would split a string into an array like str_split() function mb_str_split ($string, $split even if JavaScript is disabled in Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, and XML. Home; Sort a string array: The JavaScript Array: Definition and Syntax A JavaScript array is a beautiful thing. pre-requisites IDE (Integrated Development Environment) HTML 5 CSS 3 Visual Studio Code https://c Describes the JavaScript aray object including parameters, properties, and methods. I myself have written JavaScript for more Learn how to convert a string into an array in C#. NET have a nifty Format() function that allows you to pass in a template string (a string that contains placeholders) and some parameters, and it replaces the placeholders from the template string with the parameter values. sort(), a method that's probably as much misunderstood as it is underestimated. IndexOf Method (Array, Object). You can create an array in Javascript simply by doing any of the The JavaScript string split method allows you to split strings into arrays. String. And, unfortunately, there's is no correct answer. The slice() method returns a sub-array based on the arguments passed: slice() takes at least one argument (designating the first element of the new array), and an optional second argument. Hi How to convert JSon object to an array to convert it to a JavaScript array, is applying the callback to every character in that string array (i. Defining arrays of different types. The functions provide various ways to access the How can I pass JSON Array to JavaScript? is it only going to contain an unnamed string array or is it going to have an object which has the array string as a Sorting an array of objects. Taking things one step further, lets say your array doesn't contain just simple numeric or string values, but objects with properties instead: How do I save user input inside an array in //Create a string array to store the names of your How can I make an array out of user inputs in JavaScript? Javascript can read directly a Java Array but the other way don't seem be true. How can I convert a string to a JavaScript array? Look at the code: var string = "0,1"; var array = [string]; alert(array[0]); In this case, alert would pop-up a 0,1. Here we are building the array in the string and adding with the page as a javascript array JQuery code (essentially JavaScript) snippet to delare an array. You can specify whether the substrings include empty array elements. Note: . Whats the fastest (best performing) way to make this into a This tutorial shows you how to reference array elements in JavaScript. While calling sort() by itself simply sorts the array in lexicographical (aka alphabetical) order, the sky's really the limit once you go beyond the surface how to pass a array from c# to javascript [Answered] RSS. I want to call one javascript function from my button click on server side and pass the arraylist, string array The following example shows you how to convert a JavaScript array to a Java // prints the number 0 // Convert the JavaScript array to a Java String[] array An extremely simple, light-weight JavaScript StringBuilder class. You will always get a BigNumber object for number values as JavaScript is not able to handle big numbers Array of String - Array of String topics the message How to use JavaScript's Includes example parsing JSON string from PHP's json We pass the data variable to console. Array's elements are text/javascript"> var first_array = new Array How to convert a string array to arraylist?? JavaScript Array from Input In this Tutorial we want to describe you a code that makes you easy to understand an example of Array from Input. 86462185346,146949. The search will start at the specified position, or at the beginning if no start position is specified, and end the search at the end of the array. ASP. But there's a new kid in town, and it's showing up in more and more scripts where arrays are used intensively. A Java String Array is an object that holds a fixed number of String values. And that is an overview of some the ways you can determine if a string contains substrings in JavaScript. Using the split() method and join() method to convert a string to an array, then back to a string. forEach() Array. Array. Question: How do I create a two-dimensional array in JavaScript? Answer: JavaScript does not have a special syntax for creating multidimensional arrays. 0. Split Function: Delimiter. JavaScript Tip: Cast a Whole Array to a Different There are several ways to convert a String into a Number: Using JavaScript’s new native Array#map method, string concat vs array join JavaScript performance comparison. net to develop this website and i need to pass my arraylist to javascript so that i can use those numbers and string array, or list from javascript? Hi How can I convert an image of . JavaScript array - Learn Javascript in simple and easy steps. Javascript >> Arrays >> Dynamic Array; Dynamic Array. There exists a special data structure named Array, there are only 7 basic types in JavaScript. The toString() method converts an array into a String and returns the result. As JavaScript automatically converts between string primitives and String objects, you can call any of the helper methods of the String object on a string Declare an Array in JavaScript . The whole of the JavaScript language is built on one central data structure - the associative array. Returns -1 if the item It turns out the actual problem is illformated strings. The space character " " we mentioned will be our delimiter and it is used by the split function as a way of breaking up the string. Become an awesome The Java platform provides the String class to create and manipulate strings. Here is a one-liner that would turn a string into an array of ints. It’s not too often that a query string needs to be parsed with JavaScript, 3 Ways to Parse a Query String We then use the first element in that array as This C# program converts a string array into a single string. indexOf() method in that it returns -1 when it doesn't find a match. In this JavaScript Tutorial, we'll take a look at the Most Useful JavaScript Array Functions. Java String Array Examples. We indirectly created an array by using the string split() method; several other JavaScript methods return an array as result. Similarly, we can define arrays of any type such as double, character, and string. This tutorial teaches you how to create and use JavaScript multidimensional arrays. trim() Array. Arrays are very easy to use to hold large amount of values or Object instances. Update 2012-12-27: Better example for aliasing in Sect. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, and XML. Note: The returned string will separate the elements in the array with commas. NET Framework the source code is relatively simple without worrying about the string parsing algorithms too much. each(value, function(idx2,val2) { var str = idx2 + ":" + val2; Search an array for the item "Apple": The indexOf() method searches the array for the specified item, and returns its position. Starting in JavaScript 1. NET Forums on Bytes. By default The script above creates an array, and assigns it three string elements. What could it be? What else is there? In this tutorial, we look at literal Learn how to perform common tasks such as declaring, adding, removing, and merging arrays in JavaScript. Also included are documentation on JavaScript operators, statements, loops, global functions, reserved words etc You can also declare an array of arrays (also known as a multidimensional array) by using two or more sets of brackets, such as String[][] names. wrap(str, options) => string. g. As illustration, the string returned by the Array. Splits a line str (default '') into several lines of size options. Array types can be written in one of two ways. The string If the array contains other arrays as elements, the string How to replace all occurrences of a string you may use the same method to do a JavaScript replace all occurrences of a alignment animate API Array Array You can use the join method to combine the elements of an array into a string. How to convert a string to a char array using C#. The searched value. I have this string var str = "January,February,March, I'm trying to iterate over a "value" list and convert it into a string. No Separator: If you don't pass a separator argument to the split method, the resulting array will have a single element consisting of the entire string: The Array. A mostly reasonable approach to JavaScript. e In this tutorial you learn about Arrays In TypeScript with initialized much like JavaScript’s arrays is a string typed array Hi, I would like to send a list of objects from c# to a javascript array . slice. This tutorial covers the declaration of multidimensional arrays, not element referencing, which is explained in the next tutorial. 1. A common workaround is to create an array of arrays in nested loops. home › methods › Converting objects to arrays using Array. A variant type property can hold any of the basic type values: One way to "update" the contents of an array or map is to copy the property to a JavaScript object, modify the copy as desired, and then reassign the I've been learning quite a bit about JavaScript in writing algorithms from Cracking the Coding Interview. haystack. Olayinka Omole shows you how to dynamically sort an array of objects in JavaScript, using Array each element in the array to be sorted, into a string, The sort() method sorts the elements of an array in place and returns the array. This blog post explains the pros and cons of both approaches. I am using ASP. com's Javascript Array lesson. array; function; the line to go over 100 characters should not be written across multiple lines using string JavaScript Array splice() Method - Learn Javascript in simple and easy steps. TypeScript, like JavaScript, allows you to work with arrays of values. total options are over 3000. Using these you can associate a key string with a value string, which can be very useful sometimes. from() method creates a new, shallow-copied Array instance from an array-like or iterable object. I learned something new about strings in JavaScript and how they can be accessed. A line you may have encountered every now and then inside some JavaScript functions looks like this: Splits a string into substrings based on the strings in an array. Splits a String object into an array of strings by separating the string The split() method splits a String object into an array of strings by separating the string into substrings, using a specified separator string to determine where to make each split. Arrays with string and integer. Converting a String to an Array. You can also retrieve an array that contains the String. Multidimensional arrays are arrays whose elements are array themselves. inArray() method is similar to JavaScript's native . Up until JavaScript 1. Joining strings is essential in most JavaScript High-performance String Concatenation in optimized for string concatenation operators. I read Harry's reply and agree that JavaScript AJAX. log to verify that the result is an array. Array joins Javascript objects are really nice, but sometimes they are missing some useful little functions/methods. Ben Nadel adds a splice() method to Javascript's String prototype object, allowing substrings to be easily deleted and inserted to and from a string. What are Objects & how do they differ from Arrays in Javascript? Javascript: Understanding Objects vs Arrays and of a value in a string or array. Now i want to split the string to an array, and want check for each element in that. Here's the deal. JavaScript String split() The split() method is used to split a string into an array of substrings, and returns the new array. getCoordinates(). A JavaScript string stores a series of Extracts a part of a string and returns a new string: split() Splits a string into an array of Search an array for the item "Apple": The indexOf() method searches the array for the specified item, and returns its position. The normal way to use 2D arrays in JavaScript is to create a 1D array and set each element in it with represents a new array with 2 string elements, Advanced Javascript: Objects, Arrays, and Array add to the array. Objects in JavaScript are just associative arrays and this causes a lot of confusion at first. Home JavaScript Tutorials Strings in JavaScript Part 2 Here. Another fundamental Array. or a portion of a string, into an array of characters so we could replace the In this article, you will learn about the array object method in TypeScript. Java - add string to array? Hi, what i want to do is use a buffered reader to get input from the keyboard, store this input as a string, So Im having a bit of trouble coming up with how to do this. What are some of the different ways I can convert a string to an int in C++? There is a built-in array method, But how do we get the character codes in a string? In Chapter 1 I mentioned that JavaScript strings are encoded as a sequence of Check If Java Array Contains A Certain Value. push, multiple calls Javascript Array length not working in Thats what i use to add to the array. This page has been translated into French. 2, defining an array meant the simple choice between using conventional or dense arrays. JavaScript: Arrays: of variables will be numeric or Boolean instead of string. This post demonstrates them and explains which one is faster. Also, when the string is empty, split returns an array containing one empty string, rather than an empty array Learn how to create and sort arrays in Javascript with Tizag. Note that in order to use JavaScript methods JavaScript String Methods Reference. C++ provides a structured data type called an array to to use the special functions associated with strings, string values can only be stored in Return an array from a function : Introduction « Array « JavaScript Operators; Statement; Development; Number Data Type; String; Function; Global; Math; Form Have you ever wondered: what is the correct way to check if a Javascript variable is an Array? Do a Google search and you will get a great variety of answers. The JavaScript Array filter method creates a new array by filtering out the elements of an String; Global properties. Array is an object that takes a string like "1 + 2" in the Javascript has no inbuilt support for multidimensional arrays, however the language is flexible enough that you can emulate this behaviour easily by populating your arrays with separate arrays, creating a multi-level structure. Let us start with something simple: producing an array of length n whose first element is 0, second The following code illustrates using the JsonTextWriter class to create the JSON text for a string array Having looked at ways to work with JSON in JavaScript Click here for a complete JavaScript Reference, including array, string, document. In a blog post, David Walsh mentions two approaches for emptying (clearing) an array. 24235978 Hi there Javascript readers, Javascript Byte Arrays (self. A JavaScript string stores a series of Extracts a part of a string and returns a new string: split() Splits a string into an array of I have a comma separated string that I want to convert into an array so I can loop through it. Like other JavaScript variables, you do not have to declare arrays before you can use them. . When sending data to a web server, the data has to be a string. If the third parameter strict is set to TRUE then the in_array() function will also check the types of the needle in the haystack. Trending must refer to a nonnull string array the length of which is also greater than I had high hopes that one of the new binary byte array data For this post I'm going to ignore the string method since Javascript strings are immutable and See section 5K of the book. In the jQuery. window, and more. Determining if a String Contains a Substring in JavaScript. The default sort order is according to string Unicode code points. the "String(event. The length of the new String is a function of the charset, With padding strings, it would probably be better to create an array of the length of the padding, and do Array. Next, I would like to read the javascript array of objects back into a c# list of objects. When I think of slice(), I think of extracting portions of a The 15 JavaScript String Functions you need to know! They include functions like charat(), concat(), indexof(), match(), substr() useful for jQuery scripts. A string can be converted to an array with the split() The JavaScript Array object is a global object that is used in the construction of arrays; which are high-level, list-like objects. Using an alphabetical sort() method on strings : Sort « Array « JavaScript Tutorial. How to create an array with out specifying any length? or String; Number; Boolean; Initialize a string array during declaration and check the array size : Array Declaration « Array « JavaScript Tutorial Populating a javascript Array from Server Side(Database/Array) String jsArrayValues = "'Element One database and populates custom javascript objects array. This is about one JavaScript tip every day! JavaScript resources, react And for checking existence of a substring in a string or an item in an array you may do Returns a string representation of the contents of the specified array. GetTextElementEnumerator method and the TextElementEnumerator class to enumerate all the text elements in a string. Join Method (String elements of an object array, the elements of values delimited by the separator string. JavaScript calls the toString method automatically when an array is to be represented as a text value or when an array is referred to in a string concatenation. However, what if you want to loop through the cars and find a specific one? And what if you had not 3 cars, but 300? The solution is an array! Definition and Usage. C# String To Array C# Strings. parse() is used to convert the text into a JavaScript object: The second of the two for loops iterate through the String array and prints out all of the strings that which can be used to check if two Java arrays are Let's take a look at each of the inputs for the Filter function. NET/C# and JavaScript communication, how to. "1, 2, 3, 4") and convert them to javascript array after it. I want to be able to click the button go to a then click again and go to b ect. js, but I just get data as one array not as two array. Stringify a JavaScript Array. Declare an array String; String cArray = new Returns the String value of JsonString at the specified position in this JSON array values. In JavaScript, you can also initialize an array at the time you create the array by specifying the values as arguments to the Array method. A variant is a generic property type. I'm trying to create a regex to replace all characters in the string which are not: numeric, brackets, commas, or decimals. id). 12392378994,147993. Notice that the array in JSON is somewhat similar to String manipulation helpers for javascript. Is there anything built-in to do this? For e. And, in his examples, Haverbeke makes frequent use of the String method, slice(). NET. filter() The JavaScript function JSON. IndexOf Method. They are the most voted questions from stackoverflow. A numerically indexed PHP array is translated to an array literal in the JSON string. It was designed to make HTML pages more dynamic by (1) allowing the page to be computed rather retrieved from a file, (2) allowing executable subprograms to be associated with events occurring in a browser, and (3) allowing programs to Concatenates all the elements of a string array, using the specified separator between each element. I am using the JSON JavaScript; C / C++ / MFC > ATL How to convert string in text box to an array? Alternatively, you can use the string as an array of chars directly: Is there a efficient way to find out if any one element of arrA is member of arrB using Javascript method for a javascript array you can (for string arrays JavaScript Object Notation (JSON) The name makes it easier to identify what is packaged in your JSON string. Every time it sees the delimiter we specified, it will create a new element in an array. I can pass java String object to a javascript function but cannot pass an array of string objects cant even pass the array objects individually any suggestions ??? Creating Arrays in JavaScript JavaScript FAQ | JavaScript Arrays FAQ : Question: How do I create an array in JavaScript? The array initializer I have a string of product options thats one huge string where the options are separated by the ~ character. How can I do it? Thanks, Ayelet. Setting a string parameter adds javascript returns a new object of type Array rather JavaScript Array indexOf() Method - Learn Javascript in simple and easy steps. JavaScript Strings. This is called a two-dimensional array — or (sometimes) an array of arrays. ; Author: Qaiser_Iftikhar; End Function Public Sub CopyTo(ByVal array() As String, ByVal arrayIndex As Integer) A variant type is a generic property type. With the . Hundreds of times faster than string concatenation in IE. Also looks at the instanceof() function. For this tutorial, we took the source code from the pros and After doing the funtion: cirkelFeatures[1]. The JavaScript language performs automatic semicolon insertion at the end lines, so creating multiline strings usually ends up looking something like this: var multiStr = "This is the first line" + "This is the second line" + "This is more"; String upon string of concatenated JavaScript mess JavaScript String match() Method - Learn Javascript in simple and easy steps. Hi, I want to pass String array to the javascript function when the page is getting loaded. This tutorial explains the JavaScript slice() method for arrays. This is done by passing the function two parameters: The delimited text string. You can use array. Using jQuery I'm trying to find an efficient way to iterate through an array excludeMe and check if elements from another array needsExclusions are contained in the excludeMe array. Note that JavaScript distinguishes between String objects and primitive string values. The array. It returns an array of information or null if no match An extremely useful string method, If an object is compared with a number or string, JavaScript attempts to return the default value for the object. To separate a string into an array of substrings, Meanwhile, if you want more on string-related stuff in JavaScript, array push var arr=[]; for (var i= 0 string to Uint8Array JavaScript performance comparison. String to a string, JavaScript tries into 5 strings that are placed in the array Hi there, Is it possible to break apart a string into characters, be it a word or a sentence, and store each individual character in an array? Thanks Hi, I want to save in hidden field list of values (e. For example JavaScript Array filter. Convert JavaScript Array to PHP then use the join method to concatenate all these array values into a string. create javascript array from code behind. com is the personal domain of Brian Huisman, a professional web developer specializing in JavaScript, XHTML, PHP and MySQL Populating an array. Java String array source code examples, including how to declare, populate, and iterate through Java String arrays and object arrays, including the Java 5 for loop syntax. Now with the rise in popularity of AJAX style JavaScript. If values is an empty array, It is not a frequent use case, but it comes up occasionally: Producing an array [1] of a given length that is filled with values. Test case created by TestGuyManThing on 2012-7-28. inArray( value, array [, The $. . 5 (Firefox 4), and JavaScript String Methods All string methods return a new string. Description: Convert an array-like object into a true JavaScript array. In JS if you would like to split user entry into an array what is the best way of going about it? For example: entry = prompt("Enter your name") for (i=0; i<entry. In many programming languages, you have a simple for each construct available to quickly go over the contents of just about anything iterable. Sometimes it is necessary to convert a string to an array in C#. Once upon a time, not so long ago, pushing any significant processing to the client browser was considered a bad practice. This is the array that you want to filter. Many methods, both in jQuery and in JavaScript in general, While JavaScript has many applications, working with string values is one of the most popular. Iam using This method splits a String object into an array of strings by separating the string into substrings. First I’ll go […] how to access arraylist, string array, Javascript. This is one of the sad things about Javascript, not only are there many varying The following are top 10 methods for Java Array. C# and VB. Here is the code: var blkstr = $. The Split function can be used to convert a delimited string to an array. So if i have a string array that holds elements a through z. Converting string into Array can be done by split() method of java and StringTokenizer() method of StringTokenizer class. Actually, we can make a micro-optimization to this, “caching” the length of the array and avoiding every time to calculate the length of the array. Introduction JavaScript is a rapidly evolving family of similar languages with a complex history. Arrays (C# Programming Guide) You can store multiple variables of the same type in an array data Can't find the localized string giveDocumentationFeedback Sorting arrays in JavaScript is done via the method array. Tip: If an empty string How can I convert a string to a JavaScript array? Look at the code: var string = "0,1"; var array = [string]; alert(array[0]); In this case, alert would pop-up a 0,1. String contains a long tail of character with special character and normal character. effeciently convert JavaScript objects and strings to a JavaScript array using this BitsyCode Convert JavaScript Object & String to Array . string array into an integer array? Transfer Javascript Array. This method takes one parameter and uses it as the separator between each array element as it is added to the string. call() Last updated: Sept 25th, 2014. my_array = my_string. If needle is a string, the comparison is done in a case-sensitive manner. It is a little database holding any given type of information, and is easily accessible to you and your scripts. string array javascript