const regex = /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*', 'g')
const str = `Please contact us at: support@github.com.
Just send email to s.miller@mit.edu and j.hopking@york.ac.uk for more information.
Many users @ SoftUni confuse email addresses. We @ Softuni.BG provide
high-quality training @ home or @ class. –- steve.parker@soft.de.
• Examples of valid emails: info@company-hotels.org, kiki@hotmail.co.uk, no-reply@github.com, s.peterson@mail.uu.net, info-bg@software-software.software.academy.
• Examples of invalid emails: --123@gmail.com, …@mail.bg, .info@info.info, _steve@yahoo.cn, mike@helloworld, mike@.unknown.soft., s.johnson@invalid-.
\\b(\\b[\\w.\\w]+\\b)@(\\b[\\w.\\w]+\\b)\\b
\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*`;
// 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