Benchmark: Lodash#uniq + Native v2

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Script Preparation code:

var list = new Array(10000)
for (let i = 0; i < list.length; ++i) {
    list[i] = { v: Math.ceil(100 * Math.random()) }
}

function getValue(v) {
  return v.v
}

function comparator(v1, v2) {
  return v1.v === v2.v
}

function deduplicateWithSet(l) {
    const s = new Set()
    return l.filter(v => {
      	const vv = getValue(v)
        if (s.has(vv)) return false
        s.add(vv)
        return true
    })
}

function deduplicateWithIncludes(l) {
    const s = []
    return l.filter(v => {
       	const vv = getValue(v)
        if (s.includes(vv)) return false
        s.push(vv)
        return true
    })
}

Tests:

_.uniqWith
return _.uniqWith(list, comparator);
Using set
return deduplicateWithSet(list)
Using Array#includes
return deduplicateWithIncludes(list)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.uniqWith
Using set
Using Array#includes

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
_.uniqWith	869.1 Ops/sec
Using set	711.1 Ops/sec
Using Array#includes	631.9 Ops/sec

Lodash#uniq + Native v2 (version: 0)

Comparing performance of: _.uniqWith vs Using set vs Using Array#includes

Created: one year ago by: Guest

Jump to the latest result

_.uniqWith

Using set

Using Array#includes

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A