const regex = /^https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,4}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)\?query=([a-z]+)&sortBy=([a-z]+)$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^https?:\\\/\\\/(www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{2,256}\\.[a-z]{2,4}\\b([-a-zA-Z0-9@:%_\\+.~#?&\/\/=]*)\\?query=([a-z]+)&sortBy=([a-z]+)$', 'gm')
const str = `https://stackoverflow.com/questions/49917419/validate-url-but-allow-placeholder-strings-in-parameters#comment86853359_49917419
http://www.cool.com:81/index.html?query=helloworld&sortBy=population`;
// 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