Positive and Negative Lookahead

Summary

• Lookaheads are patterns that tell JavaScript to look-ahead in a string to check for patterns further along.
• A positive lookahead will look to make sure the element in the search pattern is there, but won’t actually match it.
• A negative lookahead will look to make sure the element in the search pattern is not there.

Final Code

let sampleWord = "astronaut";
let pwRegex =  /(?=\w{6})(?=\w*\d{2})/;
let result = pwRegex.test(sampleWord);