Reuse Patterns Using Capture Groups ( RegEx group check )

[Dayfiri]

Your code so far

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

I can’t pass only Your regex should not match "42 42 42 42". But in my RegEx checker I receive this feedback:

Can someone elaborate this please.

Your browser information:

User Agent is: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0.

Link to the challenge:

freeCodeCamp.org

[Dayfiri]

Reuse Patterns Using Capture Groups struggle

You can transform /^(\d+)\s\1\s\1$/ to: ^(\d+) that matches a certain group (in this case any number) and anchor ^ says it must be beginning of the string, and brackets ( ) captures it for later use. \s that matches one space. \1 matches group captured in point one. \s that matches one space. \1$ matches group captured in point one and anchor $ says it must be the end of the string. Therefore we have three identical groups separated by space and two conditions: group 1 must be at the beg…