Run results for: eval vs string

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:82.0) Gecko/20100101 Firefox/82.0

Browser: Firefox 82

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
plain json	650164.1 Ops/sec
eval	414489.1 Ops/sec

HTML Preparation code:


<div id=''></div>

Script Preparation code:

data = JSON.stringify({
    str  : 'string',
    num  : 0,
    arr  : [1, 2, 3],
    bool : true,
    nil  : null,
});

dataEval = '{"str":"string","num":0,"arr":[1,2,3],"bool":true,"nil":null}';

Tests:

plain json
JSON.parse(data);
eval
eval('(' + dataEval + ')');

Run results for: eval vs string

plain json

eval