Run results for: Array to object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36

Browser: Chrome 84

Operating system: Mac OS X 10.15.6

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

// Creates an array like [[ '0': 0 ], [ '1': 1 ], ... ]
var data = Object.entries({...Array.from(new Array(100000).keys())});

Tests:

Reduce w/ temp objects
data.reduce((acc, [k, v]) => ({ ...acc, [k]: v }), {})
for
var obj = {}; for (var i = 0; i < data.length; i++) { var [k, v] = data[i]; obj[k] = v; }
Object.fromEntries
Object.fromEntries(data)
Reduce
data.reduce((acc, [k, v]) => { acc[k] = v; return acc; }, {})
For..of
var obj = {}; for (var [k, v] of data) { obj[k] = v; }