const regex = /(?x) (?<!\d) (\d{5} | K\d{4}) (?!\d)/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?x) (?<!\\d) (\\d{5} | K\\d{4}) (?!\\d)', 'g')
const str = `(1) | 1 | 2018/ID11298 00000012345 PersoNR: 889899 Bridgestone BNPN
(2) | 3 | Kompo 32280EP ###Baukasten### 3789936690 ID PFK Carbon0
(3) | 2 | 20613, 20614, Mietop Antragsnummer C300Coup IVS 33221 ABF
(4) | 2 | Q21009 China lokal produzierte Derivate f/Radverbund 991222 VV
(5) | 6 | ID:61953 F-Pace Enfantillages (Machine arriere) VvSKPMG Lyon09
(6) | 2 | 2017/22222 22222 21895 Einzelkostenprob. 28932 ZürichMP KOS
(7) | K | ID:K1245 Panamera Nitsche Radlager Derivativ Bayreumion PwC
(8) | 7 | LaunchSupport QBremsen BBG BFG BBD 70142,70119 KK 70142`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions