Run results for: clearing array via pop() vs shift() vs .length = 0 vs = []

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:123.0) Gecko/20100101 Firefox/123.0

Browser: Firefox 123

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

shift

615.4M/s

pop

372.0M/s

reassignment

94.2M/s

length

39.8M/s

View exact numbers

Script Preparation code:

var array = [];

for(var i = 0; i < 100000; i++){array.push(Math.random());}

Tests: