Benchmark: eval vs json parse (working) real

Script Preparation code:

var jsonObj = (() => {
	let data = [];
	for (let i = 0; i < 10000; ++i) {
		data.push({k1: i, k2: i * 2, k3: i * 3});
	}
	return JSON.stringify(data);
})();
var code1 = "var res1 = " + jsonObj;
var code2 = "var res2 = JSON.parse(" + JSON.stringify(data) + ")";

Tests:

direct eval
eval(code1);
eval + JSON parse
eval(code2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
direct eval
eval + JSON parse

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:144.0) Gecko/20100101 Firefox/144.0

Browser/OS: Firefox 144 on Windows

View result in a separate tab

Test name	Executions per second
direct eval	203.7 Ops/sec
eval + JSON parse	9780606.0 Ops/sec

Related benchmarks:

RPC eval vs JSON parse.
Object.assign vs JSON Clone
JSON.stringify vs structuredClone
Test of JSON Stringify vs. structuredClone
JSON.parse(JSON.stringify( vs structuredClone( FIXED
JSON.parse vs structuredClone
JSON.stringify vs structuredClone, modifications
JSON.parse vs JSON.stringify 2
JSON parse inside eval

eval vs json parse (working) real (version: 1)

Comparing performance of: direct eval vs eval + JSON parse

Created: 6 months ago by: Guest

Jump to the latest result

direct eval

eval + JSON parse

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A