JavaScript includes()Method
JavaScript String ObjectExample
Check whether a string contains "Example":
var str = "Hello world, welcome to the Example。";
var n = str.includes("Example");
nOutput:
true
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Definition and Usage
The includes() method is used to determine whether a string contains the specified substring.
It returns true if a matching string is found, otherwise it returns false.
Note:The includes() method is case-sensitive.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| includes() | 41 | 12.0 | 40 | 9 | 28 |
Syntax
string.includes(searchvalue, start)
Parameter Values
| Parameter | Description |
|---|---|
| searchvalue | Required. The string to search for. |
| start | Optional. Sets the position from which to start the search. Default is 0. |
Return Value
| Type | Description |
|---|---|
| Boolean | Returns true if a matching string is found, otherwise returns false. |
Technical Details
| JavaScript Version: | ECMAScript 6 |
|---|
More Examples
Example
Start searching the string from the 12th index position:
var str = "Hello world, welcome to the Example.";
var n = str.includes("world", 12);
nOutput:
false
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Other Extensions