replace-last

JavaScript performance comparison

Test case created by fakewaffle

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var data = 'antoehunaoheu\nhaoneuhanoheu\naoheunaotheu\n';
};

Benchmark.prototype.teardown = function() {
    data = null;
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
lastIndexOf
if ( data.match( '\n' ) ) {
data = data.substring( 0, data.lastIndexOf( '\n' ) );
}
pending…
reverse
data = data.split( '' ).reverse().join( '' ).replace( '\n' ).split( '' ).reverse().join( '' );
pending…

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