I'm wanting to use regex to look for the word "bacon" after the first "/" occurrence.

For example:

Should return true:

console.log('1 - ', myRegexFunction('www.bacondelivery.com/weekly-bacon-delivery/'));
console.log('2 - ', myRegexFunction('www.bacondelivery.com/daily-bacon-delivery/'));
console.log('3 - ', myRegexFunction('www.bacondelivery.com/bacon-of-the-month-club/'));

Should return false:

console.log('4 - ', myRegexFunction('www.bacondelivery.com/'));
console.log('5 - ', myRegexFunction('www.bacondelivery.com/?some_param'));
console.log('6 - ', myRegexFunction('www.bacondelivery.com/about/'));
console.log('7 - ', myRegexFunction('www.bacondelivery.com/contact-us/'));

Here's what I currently have:

function myRegexFunction(url) {
  var regex = new RegExp("^([a-z0-9]{5,})$");
  if (regex.test(url)) {
      return true;
  } else {
      return false;
  }
}

Thanks!

CodePudding user response：

You may use this regex for this:

^[^\/] \/[^\/]*\bbacon\b.*

RegEx Demo

RegEx Details:

• ^: Start
• [^\/] : Match 1 or more of any character that is not a /
• \/: Match a /
• [^\/]*: Match 0 or more of any character that is not a /
• \bbacon\b: Match complete word bacon
• .*: Match remaining text on this line

Code:

function myRegexFunction(url) {
  const regex = /^[^\/] \/[^\/]*\bbacon\b.*/;
  return regex.test(url);
}

console.log('1 - ', myRegexFunction('www.bacondelivery.com/weekly-bacon-delivery/'));

console.log('2 - ', myRegexFunction('www.bacondelivery.com/daily-bacon-delivery/'));
console.log('3 - ', myRegexFunction('www.bacondelivery.com/bacon-of-the-month-club/'));

console.log('4 - ', myRegexFunction('www.bacondelivery.com/'));
console.log('5 - ', myRegexFunction('www.bacondelivery.com/?some_param'));
console.log('6 - ', myRegexFunction('www.bacondelivery.com/about/'));
console.log('7 - ', myRegexFunction('www.bacondelivery.com/contact-us/'));

CodePudding user response：

Try using the following regex:

\/.*\bbacon\b

If you get a match, it means you have that word in your url. If you need to match it case-insentitively, then you can use the 'i' modifier.

Regex Explanation:

• \/: a slash
• .*: any character
• \bbacon\b: your hotword between word boundaries

Check the demo here.

---

EDIT: If you want to match your bacon "word" specifically after the first occurrence, check anubhava's answer.

CodePudding user response：

Have you tried this?

/\/.*bacon/

CodePudding user response：

I would go with a simple one : const regex = /\/.*(bacon)/

function myRegexFunction(url) {
  var regex = /\/.*(bacon)/;
  if (regex.test(url)) {
      return true;
  } else {
      return false;
  }
}

• \/ to match after a /
• .* 0 to n character
• (bacon) your pattern (parenthesis are optional)

Be aware it will not work if your link is http://baconurl/…