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lodash mapValues comparative with js
(version: 0)
Comparing performance of:
lodash vs js object fromEntries vs reduce vs for in
Created:
2 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
Script Preparation code:
var fruits = { 'apple': { 'name': 'apple', 'number': 5 }, 'orange': { 'name': 'orange', 'number': 10 } };
Tests:
lodash
_.mapValues(fruits, 'number');
js object fromEntries
Object.fromEntries( Object.entries(fruits).map(([key, { number }]) => [key, number]) )
reduce
Object.entries(fruits) .reduce((a, [key, { number }]) => { a[key] = number; return a; }, {} )
for in
for (let keys in fruits) { newObj[keys] = fruits[keys].number; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
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Test case name
Result
lodash
js object fromEntries
reduce
for in
Fastest:
N/A
Slowest:
N/A
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