Run results for: Trimming multiple leading/trailing characters

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

Browser: Firefox 92

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Array single	132651.1 Ops/sec
Set single	65385.8 Ops/sec
Array double	126659.6 Ops/sec
Set double	64518.2 Ops/sec
Array 5	75613.6 Ops/sec
Set 5	32849.0 Ops/sec

Script Preparation code:

var TestString = '+'.repeat(200) + '='.repeat(20000) + '+'.repeat(200);
var TestString2 = '-'.repeat(200) + '='.repeat(20000) + '+'.repeat(200);
var TestString3 = 'a'.repeat(200) + 'b'.repeat(200) + 'c'.repeat(200) + 'd'.repeat(200) + 'e'.repeat(200) + 'f'.repeat(200) + 'g'.repeat(200) + 'h'.repeat(200) + 'i'.repeat(200) + 'j'.repeat(200) + 'k'.repeat(200) + 'l'.repeat(200);

function trimAnySet(str, chars) {
    var start = 0, 
        end = str.length;

    while(start < end && chars.has(str[start]))
        ++start;

    while(end > start && chars.has(str[end - 1]))
        --end;

    return (start > 0 || end < str.length) ? str.substring(start, end) : str;
}

function trimAny(str, chars) {
    var start = 0, 
        end = str.length;

    while(start < end && chars.indexOf(str[start]) >= 0)
        ++start;

    while(end > start && chars.indexOf(str[end - 1]) >= 0)
        --end;

    return (start > 0 || end < str.length) ? str.substring(start, end) : str;
}

Tests:

Array single
trimAny(TestString, ['+']);
Set single
trimAnySet(TestString, new Set(['+']));
Array double
trimAny(TestString2, ['+', '-']);
Set double
trimAnySet(TestString2, new Set(['+', '-']));
Array 5
trimAny(TestString3, ['a', 'b', 'c', 'd', 'e']);
Set 5
trimAnySet(TestString3, new Set(['a', 'b', 'c', 'd', 'e']));

Run results for: Trimming multiple leading/trailing characters

Array single

Set single

Array double

Set double

Array 5

Set 5