Regular Expressions - Reuse Patterns Using Capture Groups

JavaScript
1

What am I getting wrong pls? Who can help me out?

let repeatNum = "42 42 42";
let reRegex = /(\d)(\s)\1\2\1/; // Change this line
let result = reRegex.test(repeatNum);
console.log(result)

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Challenge: Regular Expressions - Reuse Patterns Using Capture Groups

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2
  1. Your regex will match only single digit numbers. You’ll need to modify the first capture group to allow for larger integers.
  2. Also, there’s an issue with using (\s) in this case, as this matches a space, a tab, a carriage return, a line feed, or a form feed. You can simply ditch the second capture group altogether and just explicitly put a single whitespace in between each \1.
  3. Your regex will match ‘42 42 42 42’, simply because you haven’t explicitly set the beginning and end of the string to match (using string anchors).
3

Thanks. your explanation worked a lot. I scaled through

4

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