jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
jsperf.com URLs are mirrored at the same path, e.g:
https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
var samples = 120000;
function t1(){
var arr = [samples];
var arr2 = [];
arr2.push(...arr);
}
function t2(){
var arr = [samples];
var arr2 = [];
for(var i=0;i <= arr.length;i++){
arr2.push(arr[i]);
}
}
function t3(){
var arr = [samples];
var arr2 = [];
arr2.push.apply(arr2, arr)
}
function t4(){
var arr = [samples];
var arr2 = [];
for (let i in arr) { arr2.push(arr[i]); }
}
function t5(){
var arr = [samples];
var arr2 = [];
while(arr.length) {
arr2.push(arr.shift());
}
}
Ready to run.
Test | Ops/sec | |
---|---|---|
T1 - ES6 - push(...arr) |
| ready |
T2 - loop - for(var i=0;i <= arr.length;i++){ |
| ready |
T3 - push.apply |
| ready |
T4 - for (let i in arr |
| ready |
T5 - while(arr.length) { |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.