const regex = /CA_[A-Z][0-9][A-Z]\h?[0-9][A-Z][0-9]|US_[0-9]{5}|GB_(?:(?:[A-Z][0-9]|[A-Z][0-9]{2}|[A-Z]{2}[0-9]|[A-Z]{2}[0-9]{2}|[A-Z][0-9][A-Z]|[A-Z]{2}[0-9][A-Z])\h?[0-9][A-Z]{2}|GIR\h?0AA)/;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('CA_[A-Z][0-9][A-Z]\\h?[0-9][A-Z][0-9]|US_[0-9]{5}|GB_(?:(?:[A-Z][0-9]|[A-Z][0-9]{2}|[A-Z]{2}[0-9]|[A-Z]{2}[0-9]{2}|[A-Z][0-9][A-Z]|[A-Z]{2}[0-9][A-Z])\\h?[0-9][A-Z]{2}|GIR\\h?0AA)', '')
const str = `CA_LSE2B9`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
if ((m = regex.exec(str)) !== null) {
// 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