const regex = / \K(?:alt|title|src|href)=["']?[^>"']+["']?>??/gs;
// Alternative syntax using RegExp constructor
// const regex = new RegExp(' \\K(?:alt|title|src|href)=["\']?[^>"\']+["\']?>??', 'gs')
const str = `<anytag aa="att1">DESC 1</anytag>
<item aa="att2">DESC 2</item>
<anytag bb="att3">DESC 3</anytag>
<anytag alt=att4>DESC 4</anytag>
<anytag src="att5">DESC 5</anytag>
<anytag src="att6">DESC 6</anytag>
<anytag src='att7'>DESC 7</anytag>
<anytag src='att8'>DESC 8</anytag>
<anytag href="att9" title="title1">DESC 9</anytag>
<anytag blabla="att10">DESC 10</anytag>`;
// 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