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JavaScript arrays: combining and splitting


This series of articles mainly concentrates on working with JavaScript arrays. This is the second article in the series and mainly concentrates on working with arrays effectively. You can reuse these scripts for injection into server side controls easily (especially in .NET and Java).

Author Info:
By: Jagadish Chaterjee
Rating: 5 stars5 stars5 stars5 stars5 stars / 21
March 07, 2006
TABLE OF CONTENTS:
  1. · JavaScript arrays: combining and splitting
  2. · How to combine or join all elements available in a two-dimensional array using JavaScript
  3. · How to split a string into an array using JavaScript
  4. · How to split a sentence into words using JavaScript

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JavaScript arrays: combining and splitting - How to split a sentence into words using JavaScript
(Page 4 of 4 )

We already looked into the concept of “splitting of strings” in the last two sections.  Now, we shall implement a real-world example based on the same concept.

Let us start to develop a simple script (JavaScript) to split a sentence into words.  Take a look at the following code:

<html>
      <head>
          
           <meta  name=vs_targetSchema  content
="http://schemas.microsoft.com/intellisense/ie5">
<script  id="clientEventHandlersJS" language="javascript">
<!--
function
Show()
{
      var SimpleString = "This is the second example";
      var myArray = SimpleString.split(" ");
      for (var i = 0; i < myArray.length; i++) 
      {
            document.write(myArray[i] + "<BR>");
      }
}

function BtnDisplay_onclick() {
      Show();
}
//-->
            </script>
      </head>
      <body>
      <form  id="form1">
                  <input  type="button"  value="Show"  id="BtnDisplay"  name="BtnDisplay"  onclick="return BtnDisplay_onclick()">
            </form>|
      </body>
</html>

In the above code, I worked with a sample string as follows:

      var SimpleString = " This is the second example";

From the above statement, we can easily determine that the “separator” for the elements would be “ ” or a space.  Proceeding further we have the following:

      var myArray = SimpleString.split(" ");

Make sure that you identify the space within the “split” function.  The above statement makes the string to split into several elements, based on the separator “ ” (space).  Once the splitting is completed, it creates an array of those elements and assigns the same to the variable “myArray”.  We use the following loop to display all the elements (as explained in my first article):

      for (var i = 0; i < myArray.length; i++) 
      {
            document.write(myArray[i] + "<BR>");
      }

Any comments, suggestions, ideas, improvements, bugs, errors, feedback etc. are highly appreciated at jag_chat@yahoo.com.


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