const regex = /(15:58:45[\s\S]*?15:58:46)/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(15:58:45[\\s\\S]*?15:58:46)', 'g')
const str = `2017-02-20 15:58:45.442 - [XYZ] 155 RADIO_TRAIN_TO_TRACK_INITIATION_COM_SESSION
.VAR1
.VAR2
.VAR3
.VAR4
2017-02-20 15:58:46.432 - [XYZ] 32 RADIO_TRACK_TO_TRAIN_CONFIGURATION_DETERMINATION
.VAR1
.VAR2
.VAR3
.VAR4
.VAR5
.VAR6
2017-02-20 15:58:48.541 - [XYZ] 155 RADIO_TRAIN_TO_TRACK_INITIATION_COM_SESSION
`;
// 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