JavaScript string tutorial

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In this tutorial you will learn how to use and manipulate strings in JavaScript.

Tutorial info:

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Step 1 - JavaScript string basics

JavaScript string tutorial

The string in JavaScript - similar to other programing languages - is a variable which stores a series of characters. A string can be any text inside a quote pair. You can use simple or double quotes, but of course the pairs must match. The next code example shows how you can define strings in JavaScript:

Code: 
   var str1 = 'Test string 1';
   var str2 = "Test string 2";
   var str3 = 'It\'s a string';
   var str4 = "This is an 'internal' string";
   var str5 = 'This is also an "internal" string';
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As you can see in case of str3 we used a single quote to define our string content, but the text itself also contains a single quote. In such cases you need to use a backslash character before the single quote to display your text properly.

Concatenating strings  

You can also create a string by concatenating more strings together. This could be very useful if you build up your string within an application logic. To do this you have 2 operators to use. The + and the +=. The example below shows you how to use them.

Code: 
   var str1 = 'This ' + 'is ' + 'a ' + 'demo!';
   var str2 = 'Part 1';
   str2 += ' and Part 2';
 
   var str3 = 'Mixed ';
   str3 += 'mode ' + 'is possible.'; 
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In the next section I will show you how to use the most basic string manipulation functions.

Tags: javascript string functions, javascript string, javascript, string, function

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