const regex = /^(?!\d+$|\d{2}:\d{2}:\d{2},\d+ --> \d{2}:\d{2}:\d{2},\d+$).+/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?!\\d+$|\\d{2}:\\d{2}:\\d{2},\\d+ --> \\d{2}:\\d{2}:\\d{2},\\d+$).+', 'gm')
const str = `1
00:00:58,178 --> 00:00:59,327
Some text!
2
00:00:59,329 --> 00:01:01,819
<i>Some text</i>
3
00:01:40,512 --> 00:01:41,629
2350 some text.
4
00:01:41,631 --> 00:01:43,771
Some text.`;
// 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