Run results for: Merging Objetcs

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
assign	2246822.0 Ops/sec
spread	3322703.0 Ops/sec
_.extend	1417295.0 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js'></script>

Script Preparation code:

var foo = {
    "a": "a",
    "b": "b",
    "c": "c"
};

var bar = {
    "b": "b",
    "d": "d",
    "f": "f"
};

var zar = {
    "b": "b",
    "g": "g"
};

Tests:

assign
var result = Object.assign({}, foo, bar, zar);
spread
var result = { ...foo, ...bar, ...zar };
_.extend
var result = _.extend({}, foo, bar, zar);

Run results for: Merging Objetcs

assign

spread

_.extend