const regex = /([a-zA-Z\<\>//]){0}\s(?<name>[a-zA-Z]+)=?("(?<value>[A-Za-z\d\s?%&=;_:.\-\/\\%]*)")?/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('([a-zA-Z\\<\\>\/\/]){0}\\s(?<name>[a-zA-Z]+)=?("(?<value>[A-Za-z\\d\\s?%&=;_:.\\-\\\/\\\\%]*)")?', 'gm')
const str = `<iframe width="560" height="315" src="https://www.youtube.com/embed/dQw4w9WgXcQ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<div style="width: 100%; height: 0px; position: relative; padding-bottom: 56.250%;"><iframe src="https://streamable.com/e/z1plzy" frameborder="0" width="100%" height="100%" allowfullscreen style="width: 100%; height: 100%; position: absolute;"></iframe></div>
<iframe src="https://www.facebook.com/plugins/video.php?height=476&href=https%3A%2F%2Fwww.facebook.com%2FReposterasporelmundo%2Fvideos%2F509220620563650%2F&show_text=false&width=476&t=0" width="476" height="476" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowfullscreen="true" allow="autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share" allowFullScreen="true"></iframe>`;
// 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