MeasureThat.net

Run results for: clearing array

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Firefox 57
Windows
Other
2025 years ago
Test name Executions per second
while (array.length > 0) { array.pop(); } 228277648.0 Ops/sec
while (array.pop()) {} 19190388.0 Ops/sec
array.length = 0; 35105048.0 Ops/sec
array = []; 74265104.0 Ops/sec
Script Preparation code:
​x
 
var array = [];
​
for(var i = 0; i < 100000; i++){array.push(Math.random());}
Tests:

  • while (array.length > 0) { array.pop(); }

     
    while (array.length > 0) { array.pop(); }

  • while (array.pop()) {}

     
    while (array.pop()) {}

  • array.length = 0;

     
    array.length = 0;

  • array = [];

     
    array = [];