JavaScript String split() Method: A delimiter is a sequence of one or more characters used to specify the boundary between separate, independent regions in plain text or other data streams. An example of a delimiter is the comma character, which acts as a field delimiter in a sequence of comma-separated values; each of the substrings is an element in the list.
For instance, the following string has three elements separated by commas:
“First element, Second element, Third element”
The string object provides the JavaScript Split Method, which you can use to split a string into elements at a specified delimiter. These elements are then placed in an array, and that array is returned by the method.
For instance, consider the following example of JavaScript Split Method:
var thisVar = "First element,Second element,Third element"; var anotherVar = thisVar.split(",");
anotherVar is now an array containing three elements.
The following task illustrates JavaScript Split Method this by splitting a string containing a list into its component elements and then outputting those elements from the resulting array:
1. Open a new HTML document in your preferred HTML or text editor.
2. Create the body of the document with opening and closing body tags:
<body> </body>
3. Insert a script block in the body of the document:
<script language="JavaScript"> <!--// --> </script>
4. Create a variable named myVariable and assign a comma separated text string to it:
var myVariable = "a,b,c,d"; 5. Use the JavaScript Split Method to split the string at the commas and assign the resulting array to the variable stringArray:
var stringArray = myVariable.split(","); 6. Use the document.write method to output the elements of the array so that the final script looks like
<body> <script language="JavaScript"> <!-- var myVariable = "a,b,c,d"; var stringArray = myVariable.split(","); document.write(stringArray[0]); document.write(stringArray[1]); document.write(stringArray[2]); document.write(stringArray[3]); // --> </script> </body>
7. Save the file and close it.
8. Open the file in a browser, and you should see the text “abcd”,
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