JS Floors

JavaScript performance comparison

Revision 4 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var r, f = Math.floor;
};
</script>

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Testing in unknown unknown
Test Ops/sec
Math.floor
(function(n) {
r = Math.floor(n);
})(9.5);
pending…
Double not
(function(n) {
r = ~~n;
})(9.5);
pending…
Bitwise or
(function(n){
r = n | 0;
})(9.5);
pending…
Cached Math.floor
(function(n){
r = f(n);
})(9.5);
pending…
- (% 1)
(function(n){
r = n - (n % 1);
})(9.5);
pending…
- % 1
(function(n){
r = n - n % 1;
})(9.5);
pending…
Math.ceil
(function(n){
r = Math.ceil(n);
})(9.5);
pending…
Math.ceil/floor
(function(n){
r = n < 0 ? Math.ceil(n) : Math.floor(n);
})(9.5);
pending…
Math['ceil/floor']
(function(n){
r = Math[n < 0 ? 'ceil':'floor'](n);
})(9.5);
pending…

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Revisions

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