Run results for: Lodash#uniq + Native

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/111.0.5563.101 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 111

Operating system: iOS 16.0

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
_.uniqWith	1146.7 Ops/sec
Using set	8806.0 Ops/sec
Using Array#includes	1709.5 Ops/sec

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 deduplicateWithSet(l) {
    const s = new Set()
    return l.filter(v => {
        if (s.has(v.v)) return false
        s.add(v.v)
        return true
    })
}

function deduplicateWithIncludes(l) {
    const s = []
    return l.filter(v => {
        if (s.includes(v.v)) return false
        s.push(v.v)
        return true
    })
}

Tests:

_.uniqWith
return _.uniqWith(list, (v1, v2) => v1.v === v2.v);
Using set
return deduplicateWithSet(list)
Using Array#includes
return deduplicateWithIncludes(list)

Run results for: Lodash#uniq + Native

_.uniqWith

Using set

Using Array#includes