Run results for: equivalent arrays

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0

Browser: Firefox 81

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
little pyramid	27548.6 Ops/sec
big pyramid	25465.1 Ops/sec

HTML Preparation code:

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

Script Preparation code:

function equivalent(arr1, arr2) {
    if (arr1.length !== arr2.length) {
        return false
    }
    arr1.forEach((elem) => {
        const index = arr2.findIndex((elem2) => elem === elem2)
        if (index === -1) { // not found
            return false
        }
        arr2.splice(index, 1) // remove element
    })
    if (arr2.length > 0) { // if still values in arr2, they are not in arr1
        return false
    }
    return true
}

Tests:

little pyramid
const res = equivalent([1, 2, 3, 4, 5], [5, 4, 3, 2, 1]) console.log(res)
big pyramid
const array1 = [] const array2 = [] for (let i = 0; i <= 100; i++) { array1.push(i) } for (let i = 99; i >= 0; i--) { array1.push(i) } const res = equivalent(array1, array2) console.log(res)

Run results for: equivalent arrays

little pyramid

big pyramid