JavaScript String startsWith() Method
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JavaScript String startsWith() Method
The startsWith() method returns a Boolean value indicates whether a string begins with the characters of a specified string.
Note: This method is case sensitive.
startsWith() with searchValue
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
var str = "Hello there my old friend";
var result = str.startsWith("Hello");
document.write(result);
</script>
</body>
</html>
Syntax
str.startsWith(searchValue, start)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| searchValue | Required | Specifies the characters to be searched for at the start of this string. |
| start | Optional | Specifies the position to start the search. If omitted, the default value is '0'. |
Return Value
| Value | Explanation |
|---|---|
| true | If the string starts with the value. |
| false | If the string does not starts with the value. |
startsWith() with searchValue and Start Index
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
var str = "Hello there my old friend";
var result = str.startsWith("my", 12);
document.write(result);
</script>
</body>
</html>
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