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JavaScript String substring() Method
JavaScript String substring() Method
JavaScript substring() method is used to extract the characters from a given input string between two specified indexes and return the new substring as a result. It does not change the original string.
Syntax:
string.substring(start, end)
Parameter Values
| Parameter | Description |
|---|---|
| start | This is a required parameter. It defines the position where to start the extraction. |
| end | This is an optional parameter. It defines the position where to end the extraction. |
Browser Support
| Method | Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| substring() | Yes | Yes | Yes | Yes | Yes |
Here is an example of substring() method:
<html>
<body>
<p>Click the button to see the Output.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var str = "Welcome to PHPTPOINT!!";
var res = str.substring(0, 7);
document.getElementById("demo").innerHTML = res;
}
</script>
</body>
</html>
Output:
Click the button to see the Output.
Example 2:
<html>
<body>
<p>Click the button to see the Output.</p>
<button onclick="myFunction1()">Try it</button>
<p id="demo1"></p>
<script>
function myFunction1() {
var str = "Welcome to PHPTPOINT!!";
var res = str.substring(str.length - 2, str.length-11);
document.getElementById("demo1").innerHTML = res;
}
</script>
</body>
</html>
Output:
Click the button to see the Output.
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