const regex = /([a-zA-Z0-9/<]){9}[0-9]([A-Za-z]){3}([0-9]){6}([0-9])([MmFf\<])([0-9])([0-9]){6}([a-zA-Z0-9/<]){14}([0-9]){2}/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('([a-zA-Z0-9\/<]){9}[0-9]([A-Za-z]){3}([0-9]){6}([0-9])([MmFf\\<])([0-9])([0-9]){6}([a-zA-Z0-9\/<]){14}([0-9]){2}', 'gm')
const str = `#Fictional MRT
L898902C<3UTO6908061F9406236ZE184226B<<<<<14
#Sample USA
3400072370USA6707046F1608078910000193<113538
#Sample JPN
XS12345673JPN7902206F1101018<<<<<<<<<<<<<<00
#Sample UK
4580059179GBR7310216M1602135<<<<<<<<<<<<<<06
`;
// 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