JavaScript test() Method
Example
Search a string for the character "e":
var str = "The best things in life are free";
var patt = new RegExp("e");
var res = patt.test(str);
Since there is an "e" in the string, the result of res will be:
true
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Definition and Usage
The test() method tests for a match in a string.
This method returns true if it finds a match, otherwise it returns false.
Browser Support
Method | |||||
---|---|---|---|---|---|
test() | Yes | Yes | Yes | Yes | Yes |
Syntax
RegExpObject.test(string)
Parameter Values
Parameter | Description |
---|---|
string | Required. The string to be searched |
Return Value
Type | Description |
---|---|
Boolean | Returns true if it finds a match, otherwise it returns false |
Technical Details
JavaScript Version: | 1.2 |
---|
More Examples
Example
Do a global search, and test for "Hello" and "W3Schools" in a string:
// The string:
var str = "Hello world!";
// Look for "Hello"
var patt = /Hello/g;
var result = patt.test(str);
// Look for
"W3Schools"
patt2 = /W3Schools/g;
result2 = patt2.test(str);
The output of the code above will be:
true // match for "Hello"
false // no match for "W3Schools"
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JavaScript RegExp Object