JavaScript Symbol search Property
Last Updated :
19 May, 2023
JavaScript Symbol search property determines the method that returns the index within a string that matches the regular expression. This function is called by the String search() method.
Syntax:
[Symbol.search](string)
Parameters: It accepts single parameter “String”.
Return value: This returns the position of a string where it matches and if not matches it will return -1.
Below examples illustrate the Symbol search property in JavaScript:
Example 1:
<script>
class obj {
constructor(value) {
this .value = value;
}
[Symbol.search](string) {
return string.indexOf( this .value);
}
}
console.log( 'Geeksforgeeks' .search( new obj( 'Geek' )));
console.log( 'Geeksforgeeks' .search( new obj( 'geek' )));
</script>
|
Output:
0
8
Example 2:
<script>
class S {
constructor(value) {
this .value = value;
}
[Symbol.search](string) {
return string.indexOf( this .value);
}
}
console.log( 'GEEKSFORGEEKS' .search( new S( 'geek' )));
console.log( 'GEEKSFORGEEKS' .search( new S( 'Geek' )));
</script>
|
Output:
-1
-1
Supported Browsers: The browsers supported by Symbol search property are listed below:
- Google Chrome 50 and above
- Firefox 49 and above
- Edge 79 and above
- Opera 37 and above
- Apple Safari 10 and above
We have a complete list of Javascript symbols’ properties and methods, to check those please go through the Javascript Symbol Complete Reference article.
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