Run results for: JSON.stringify array vs join Updated

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

array.join + string template

3K/s

JSON.stringify

3K/s

View exact numbers

Test name	Executions per second
✓ array.join + string template	3,291 Ops/sec
JSON.stringify	3,004 Ops/sec

Script Preparation code:

var arr_small = Array.from({ length: 10 }).map((_, i) => `test_val${i}`);
var arr_big = Array.from({ length: 10000 }).map((_, i) => `test_val${i}`);

Tests:

JSON.stringify
JSON.stringify(arr_small); JSON.stringify(arr_big);
array.join + string template
`["${arr_small.join('","')}"]`; `["${arr_big.join('","')}"]`;