Run results for: How to clear an array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser: Firefox 147

Operating system: Windows

Device Platform: Desktop

Date tested: 5 months ago

set length

105K/s

splice

83K/s

for pop

33K/s

while pop

31K/s

for shift

7K/s

while shift

7K/s

View exact numbers

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const array = Array.from({ length: 10000 }, () => Math.random());

Tests:

while pop
const arr = array.slice(); while (arr.length > 0) arr.pop();
while shift
const arr = array.slice(); while (arr.length > 0) arr.shift();
for pop
const arr = array.slice(); const length = arr.length; for (let i = 0; i < length; i++) arr.pop();
for shift
const arr = array.slice(); const length = arr.length; for (let i = 0; i < length; i++) arr.shift();
splice
const arr = array.slice(); arr.splice(0);
set length
const arr = array.slice(); arr.length = 0;