Run results for: maping

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36

Browser: Chrome 84

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
item by key	4333.7 Ops/sec
filtered item	418.1 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var itemsArray = [];
var itemsObj = {};

for (let i = 0; i < 100000; i++) {
	itemsArray.push({
    	id: i,
      	author: 'Robert' + i,
    })
    itemsObj = {...itemsObj, [i]: {id: i, author: 'Robert' + i}}
}

Tests:

item by key
console.log('itemsObj ', itemsObj[59430])
filtered item
console.log(itemsArray.filter(item => item.id === 59430)[0])

item by key

filtered item