Benchmark: Trimming leading/trailing characters (multiple)

Script Preparation code:

var TestString = '+'.repeat(200) + '='.repeat(20000) + '+'.repeat(200);

var regexTrim = function(str, ch) {
    if (ch === ']') ch = '\\]';
    else if (ch === '^') ch = '\\^';
    else if (ch === '\\') ch = '\\\\';
    return str.replace(new RegExp('^[' + ch + ']+|[' + ch + ']+$', 'g'), '');
};

function indexTrim(str, ch) {
    var start = 0, 
        end = str.length;

    while(start < end && str[start] === ch)
        ++start;

    while(end > start && str[end - 1] === ch)
        --end;

    return (start > 0 || end < str.length) ? str.substring(start, end) : str;
}

function booleanTrim(str, ch) {
    return str.split(ch).filter(Boolean).join(ch);
}

function spreadTrim(str, ch) {
    const first = [...str].findIndex(char => char !== ch);
    const last = [...str].reverse().findIndex(char => char !== ch);
    return str.substring(first, str.length - last);
}

function substringTrim(str, ch) {
    while(str.charAt(0)==ch) {
        str = str.substring(1);
    }

    while(str.charAt(str.length-1)==ch) {
        str = str.substring(0,str.length-1);
    }

    return str;
}

function trimSuffix(str, suffix) {
    let lastStrChar = str.length - 1, lastSuffixChar = suffix.length - 1;
    while (lastSuffixChar >= 0) {
        if (str[lastStrChar] !== suffix[lastSuffixChar]) return str;
        lastStrChar--;
        lastSuffixChar--;
    }
    return str.slice(0, lastStrChar + 1)
}

Tests:

Index Version (Jason Larke)
indexTrim(TestString, '+');
Regex Version (leaf)
regexTrim(TestString, '+')
Boolean Filter Version (mbaer3000)
booleanTrim(TestString, '+')
Spread Version (Robin F.)
spreadTrim(TestString, '+')
Substring Version (Pho3niX83)
substringTrim(TestString, '+')
Index Multiple Char Version (Pawel O.)
trimSuffix(TestString, '+')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Index Version (Jason Larke)
Regex Version (leaf)
Boolean Filter Version (mbaer3000)
Spread Version (Robin F.)
Substring Version (Pho3niX83)
Index Multiple Char Version (Pawel O.)

Fastest: N/A

Slowest: N/A

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/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Mac OS X 10.15.7

View result in a separate tab

Index Multiple Char Version (Pawel O.)

103.5M/s

Index Version (Jason Larke)

1.3M/s

Substring Version (Pho3niX83)

426K/s

Boolean Filter Version (mbaer3000)

187K/s

Regex Version (leaf)

162K/s

Spread Version (Robin F.)

9K/s

View exact numbers

Test name	Executions per second
✓ Index Multiple Char Version (Pawel O.)	103,549,560 Ops/sec
Index Version (Jason Larke)	1,343,273 Ops/sec
Substring Version (Pho3niX83)	425,689 Ops/sec
Boolean Filter Version (mbaer3000)	187,393 Ops/sec
Regex Version (leaf)	161,774 Ops/sec
Spread Version (Robin F.)	8,524 Ops/sec

Trimming leading/trailing characters (multiple) (version: 1)

Comparing performance of: `Index Version (Jason Larke) vs Regex Version (leaf) vs Boolean Filter Version (mbaer3000) vs Spread Version (Robin F.) vs Substring Version (Pho3niX83) vs Index Multiple Char Version (Pawel O.)`

Created: one year ago by: Guest

Go to the latest result

Index Version (Jason Larke)

Regex Version (leaf)

Boolean Filter Version (mbaer3000)

Spread Version (Robin F.)

Substring Version (Pho3niX83)

Index Multiple Char Version (Pawel O.)

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Trimming leading/trailing characters (multiple) (version: 1)

Comparing performance of: Index Version (Jason Larke) vs Regex Version (leaf) vs Boolean Filter Version (mbaer3000) vs Spread Version (Robin F.) vs Substring Version (Pho3niX83) vs Index Multiple Char Version (Pawel O.)

Created: one year ago by: Guest

Go to the latest result

Index Version (Jason Larke)

Regex Version (leaf)

Boolean Filter Version (mbaer3000)

Spread Version (Robin F.)

Substring Version (Pho3niX83)

Index Multiple Char Version (Pawel O.)

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Index Version (Jason Larke) vs Regex Version (leaf) vs Boolean Filter Version (mbaer3000) vs Spread Version (Robin F.) vs Substring Version (Pho3niX83) vs Index Multiple Char Version (Pawel O.)`