exec() vs match() vs test() vs search() vs indexOf()

JavaScript performance comparison

Revision 15 of this test case created by derry

Info

Tests to determine which function is faster for detecting whether a string matches a regex pattern.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var abcRegex = /abc/;
    String.prototype.test = function(re){ return re.test(this); };
    String.prototype.test2 = function(re){ return this.search(re)>=0; };
};
</script>

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Testing in unknown unknown
Test Ops/sec
exec()
if (abcRegex.exec("xxxxxxxxxabcxxxxxxabcxx") !== null) {
 // String matches regex
}
pending…
match()
if ("xxxxxxxxxabcxxxxxxabcxx".match(abcRegex) !== null) {
 // String matches regex
}
pending…
test()
if (abcRegex.test("xxxxxxxxxabcxxxxxxabcxx") !== false) {
 // String matches regex
}
pending…
search()
if ("xxxxxxxxxabcxxxxxxabcxx".search(abcRegex) !== -1) {
 // String matches regex
}
pending…
indexOf()
if ("xxxxxxxxxabcxxxxxxabcxx".indexOf("abc") !== -1) {
 // String matches regex
}
pending…
match() str
if ("xxxxxxxxxabcxxxxxxabcxx".match("abc") ) {
 // String matches regex
}
pending…
test(re)
if ("xxxxxxxxxabcxxxxxxabcxx".test(abcRegex)) {
 // String matches regex
}
pending…
test2(re)
if ("xxxxxxxxxabcxxxxxxabcxx".test2(abcRegex)) {
 // String matches regex
}
pending…

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Revisions

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