The JavaScript Symbol.search property finds out the index within a string that matches with the regular expression.
Syntax:
[Symbol.search](string)
Parameters:
string: It represents the string that matches against the regular expression.
Returns:
Index of the specified string with a match.
Example 1:
<!DOCTYPE html>
<html>
<body>
<script>
class obj {
constructor(a) {
this.a = a; }
[Symbol.search](string) {
return string.indexOf(this.a); } }
document.write('HELLO'.search(new obj('O')));
</script>
</body>
</html>
Example 2:
<!DOCTYPE html>
<html>
<body>
<script>
class Searchtest {
constructor(value) {
this.value = value;
}
[Symbol.search](string) {
return string.indexOf(this.value);
}
}
document.write('w3schools'.search(new Searchtest('java')));
</script>
</body>
</html>