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Lodash cloneDeep vs. Lodash clone vs. Array.slice() vs. Array.slice(0) vs. Object.assign()
(version: 0)
For times when a shallow copy is needed, what is the performance difference between these 5 methods.
Comparing performance of:
Lodash cloneDeep vs Lodash clone vs Array.slice() vs Array.slice(0) vs Object.assign()
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js'></script>
Script Preparation code:
var arr = ['one', 'two', 'three', {four: 'five'}];
Tests:
Lodash cloneDeep
var myCopy = _.cloneDeep(arr)
Lodash clone
var myCopy = _.clone(arr)
Array.slice()
var myCopy = arr.slice()
Array.slice(0)
var myCopy = arr.slice(0)
Object.assign()
var myCopy = Object.assign([], arr)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
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Test case name
Result
Lodash cloneDeep
Lodash clone
Array.slice()
Array.slice(0)
Object.assign()
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Array.slice() vs. Spread operator
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