Run results for: Test spead operator vs temporary

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36

Browser: Chrome 66

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
test spread	24.7 Ops/sec
test temporary object	2463.9 Ops/sec

Script Preparation code:

var x = {};
for(let i = 0; i < 2000; i++){
 	x[i] = i; 
}

Tests:

test spread
for(let i = 0; i < 100; i++){ x = { [i]: i, ...x } }
test temporary object
let temp = {} for(let i = 0; i < 100; i++){ temp[i] = i; } x = { ...x, ...i }