Run results for: reduce 20000 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Browser: Firefox 68

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
spread	0.0 Ops/sec
concat	0.0 Ops/sec
push	510.0 Ops/sec

Website performance monitoring

Script Preparation code:

var list = [];
var LIMIT = 20000;

Tests:

spread
for(var i = 0; i < LIMIT; i++) list = [...list, {a:2}];
concat
for(var i = 0; i < LIMIT; i++) list == list.concat([{a:2}]);
push
for(var i = 0; i < LIMIT; i++) list.push({a:2});