const regex = /H(?:<.*?>)?e(?:<.*?>)?l(?:<.*?>)?l(?:<.*?>)?o(?:<.*?>)? (?:<.*?>)?進(?:<.*?>)?撃(?:<.*?>)?の(?:<.*?>)?巨(?:<.*?>)?人(?:<.*?>)?!(?:.|\r?\n)*?L(?:<.*?>)?o(?:<.*?>)?r(?:<.*?>)?e(?:<.*?>)?m(?:<.*?>)? (?:<.*?>)?i(?:<.*?>)?p(?:<.*?>)?s(?:<.*?>)?u(?:<.*?>)?m(?:<.*?>)?\./;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('H(?:<.*?>)?e(?:<.*?>)?l(?:<.*?>)?l(?:<.*?>)?o(?:<.*?>)? (?:<.*?>)?進(?:<.*?>)?撃(?:<.*?>)?の(?:<.*?>)?巨(?:<.*?>)?人(?:<.*?>)?!(?:.|\\r?\\n)*?L(?:<.*?>)?o(?:<.*?>)?r(?:<.*?>)?e(?:<.*?>)?m(?:<.*?>)? (?:<.*?>)?i(?:<.*?>)?p(?:<.*?>)?s(?:<.*?>)?u(?:<.*?>)?m(?:<.*?>)?\\.', '')
const str = `
<html>
<body>
<p>Hello <em>進撃の巨人</em>!</p>
random code
random code
<p>Lorem <span>ipsum<span>.</p>
</body>
</html>
`;
// 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