const regex = /\b(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\b(\.\b(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\b){3}/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('\\b(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\\b(\\.\\b(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\\b){3}', 'gm')
const str = `192.168.178.1
192.168.178.2
200.200.200.200
255.255.255.255
200.200.200.200
200.200.200.200
200.200.256.200
200.200.200.200.
200.200.200
200.200.200.2d0
100.100.020.100
-1.0.0.0
200000000000000000000000000000000000000000000000000000000000000000000000000000.200.200.200
Insgesamt 13`;
// 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