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JavaScript String startsWith() Method
JavaScript String startsWith() Method
JavaScript startsWith() method is used to determine if a string begins with the characters of a given specified string. It is case sensitive. It returns true value if the string begin with the character and false value if not.
Syntax:string.startsWith(searchvalue, start)
Parameter Values
| Parameter | Description |
|---|---|
| searchvalue | This is a required parameter. It defines the string to search for. |
| Start | This is an optional parameter. It defines at which position to start the search. |
Browser Support
| Method | Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| startsWith() | 41 | 12.0 | 17 | 9 | 28 |
<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 n = str.startsWith("Welcome");
document.getElementById("demo").innerHTML = n;
}
</script>
</body>
</html>
Output:
Example 2:
Click the button to see the Output.
<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 n = str.startsWith("PHP", 11);
document.getElementById("demo1").innerHTML = n;
}
</script>
</body>
</html>
Output:
Click the button to see the Output.
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