Huge Array filter performance

Benchmark created on

Setup

var existing = [160058,160195,160007,12136899,12138926]
var alpha = 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Test runner

Ready to run.

Testing in
TestOps/sec
Filter and includes
var result = alpha.filter(function(i)
{
    return !existing.includes(i);
});
ready
Loop and includes
function filter()
{
    var match = []

    for (var i = 0; i < alpha.length; i++)
    {
        if ( !existing.includes(alpha[i]) ) match.push(alpha[i])
    }

    return match
}

var result = filter();
ready
Loop and indexOf
function filter()
{
    var match = []

    for (var i = 0; i < alpha.length; i++)
    {
        if ( existing.indexOf(alpha[i]) === -1 ) match.push(alpha[i])
    }

    return match
}

var result = filter();
ready
Loop and find
function filter()
{
    var match = []

    for (var i = 0; i < alpha.length; i++)
    {
        if ( existing.find(ee => ee === alpha[i]) === undefined ) match.push(alpha[i])
    }

    return match
}

var result = filter();
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.