const regex = /^(?:[1-9][0-9]*d (?:2[0-3]|1[0-9]|[1-9])h (?:[1-5][0-9]|[1-9])m|[1-9][0-9]*d (?:(?:2[0-3]|1[0-9]|[1-9])h|(?:[1-5][0-9]|[1-9])m)|(?:2[0-3]|1[0-9]|[1-9])h (?:[1-5][0-9]|[1-9])m|[1-9][0-9]*d|(?:2[0-3]|1[0-9]|[1-9])h|(?:[1-5][0-9]|[1-9])m)$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?:[1-9][0-9]*d (?:2[0-3]|1[0-9]|[1-9])h (?:[1-5][0-9]|[1-9])m|[1-9][0-9]*d (?:(?:2[0-3]|1[0-9]|[1-9])h|(?:[1-5][0-9]|[1-9])m)|(?:2[0-3]|1[0-9]|[1-9])h (?:[1-5][0-9]|[1-9])m|[1-9][0-9]*d|(?:2[0-3]|1[0-9]|[1-9])h|(?:[1-5][0-9]|[1-9])m)$', 'gm')
const str = `0d
1d
10d
50d
0h
1h
10h
20h
24h
0m
5m
10m
20m
55m
60m
1d 1h 1m
1d 10h 10m
1d 10h
1d 20h
10d 40m
10d 4m
1d2m
1d2h
1h2m
`;
// 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