Run results for: regex compare & replace v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.63

Browser: Chrome 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
test1	4333520.5 Ops/sec
test2	6260814.5 Ops/sec
test3	2728706.5 Ops/sec
reaplce1	1036404.9 Ops/sec
reaplce1_1	953161.0 Ops/sec
reaplce1_2	937520.4 Ops/sec
reaplce1_3	973183.6 Ops/sec
reaplce2	1531477.0 Ops/sec
reaplce2_3	1391147.6 Ops/sec

Script Preparation code:

// php date(locutus.io)
const pattern1 = /\\?(.?)/gi;
// dayjs pattern
const pattern2 = /\[([^\]]+)]|Y{1,4}|M{1,4}|D{1,2}|d{1,4}|H{1,2}|h{1,2}|a|A|m{1,2}|s{1,2}|Z{1,2}|SSS/g;
// momentjs pattern
const pattern3 = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g
// php date optimization
const pattern4 = /\[([^\]]+)]|Y|m|d|h|i|s|T/g;

function test1(str) {
  return str.match(pattern1);
}

function test2(str) {
  // dayjs
  return str.match(pattern2);
}

function test3(str) {
  // momentjs
  return str.match(pattern3);
}

function test4(str) {
  return str.match(pattern4);
}

function getReplacement() {
  return {
    Y: '1111',
    m: '22',
    d: '33',
    h: '44',
    i: '55',
    s: '66',
    T: 'UTC',
  }
}

function reaplce1(str) {
  const replacement = {
    Y: '1111',
    m: '22',
    d: '33',
    h: '44',
    i: '55',
    s: '66',
    T: 'UTC',
  };
  return str.replace(pattern1, (_, $1) => replacement[$1] || $1);
}

function reaplce1_1(str) {
  const replacement = {
    Y: () => '1111',
    m: () => '22',
    d: () => '33',
    h: () => '44',
    i: () => '55',
    s: () => '66',
    T: () => 'UTC',
  };
  return str.replace(pattern1, (_, $1) => replacement[$1] ? replacement[$1]() : $1);
}

function reaplce1_2(str) {
  const replacement = {
    Y: () => '1111',
    m: '22',
    d: () => '33',
    h: '44',
    i: () => '55',
    s: '66',
    T: () => 'UTC',
  };
  return str.replace(pattern1, (_, $1) => {
    if (replacement[$1]) {
      return typeof replacement[$1] === 'function' ? replacement[$1]() : replacement[$1] || $1;
    }
    return $1;
  });
}

function reaplce1_3(str) {
  const replacement = getReplacement();
  return str.replace(pattern1, (_, $1) => replacement[$1] || $1);
}

function reaplce2(str) {
  const replacement = {
    YYYY: '1111',
    MM: '22',
    DD: '33',
    HH: '44',
    mm: '55',
    ss: '66',
    Z: '+08:00',
  };
  return str.replace(pattern2, ($0) => replacement[$0] || $0);
}

function getReplacement2() {
  return {
    YYYY: '1111',
    MM: '22',
    DD: '33',
    HH: '44',
    mm: '55',
    ss: '66',
    Z: '+08:00',
  }
}

function reaplce2_3(str) {
  const replacement = getReplacement2();
  return str.replace(pattern2, ($0) => replacement[$0] || $0);
}

function replace4(str) {
  const replacement = {
    Y: '1111',
    m: '22',
    d: '33',
    h: '44',
    i: '55',
    s: '66',
    T: 'UTC',
  };
  return str.replace(pattern4, ($0) => replacement[$0] || $0);
}

function replace4_3(str) {
  const replacement = getReplacement();
  return str.replace(pattern4, ($0) => replacement[$0] || $0);
}

Tests:

test1: php date(locutus.io)
test1('Y-m-d h:i:s T');
test2: dayjs pattern
test2('YYYY-MM-DD HH:mm:ss Z');
test3: momentjs pattern
test3('YYYY-MM-DD HH:mm:ss Z');
reaplce1
reaplce1('Y-m-d h:i:s T');
reaplce1_1
reaplce1_1('Y-m-d h:i:s T');
reaplce1_2
reaplce1_2('Y-m-d h:i:s T');
reaplce1_3
reaplce1_3('Y-m-d h:i:s T')
reaplce2
reaplce2('YYYY-MM-DD HH:mm:ss Z');
reaplce2_3
reaplce2_3('YYYY-MM-DD HH:mm:ss Z');
test4: php date optimization
test4('Y-m-d h:i:s T');
replace4
replace4('Y-m-d h:i:s T')
replace4_3
replace4_3('Y-m-d h:i:s T')

Run results for: regex compare & replace v2

test1: php date(locutus.io)

test2: dayjs pattern

test3: momentjs pattern

reaplce1

reaplce1_1

reaplce1_2

reaplce1_3

reaplce2

reaplce2_3

test4: php date optimization

replace4

replace4_3