Benchmark: pairs to object - MeasureThat.net

HTML Preparation code:

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

Script Preparation code:

  var arr = [
  ['a', 1],
  ['b', 2],
  ['c', 3],
  ['d', 4],
  ['e', 5],
  ['f', 6],
  ['g', 7],
  ['h', 8],
  ['i', 9],
  ['j', 0],
  ]

Tests:

object assign + new object
var result = arr.reduce((prev, curr) => Object.assign( {}, prev, { [curr[0]]: curr[1] }, ))
object assign
var result = arr.reduce((prev, curr) => Object.assign( prev, { [curr[0]]: curr[1] }, ))
arr reduce + simple set
var result = arr.reduce((prev, curr) => { prev[curr[1]] = curr[2]; return prev; })
arr reduce + spread
var result = arr.reduce((prev, curr) => ({ ...prev, [curr[0]]: curr[1], }))
fromPairs
var result = _.fromPairs(arr);

Rendered benchmark preparation results:

Previous results

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Related benchmarks:

pairs to object (version: 0)