question-mark
Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

[Learn]: ‘positiveLookbehind‘ Correct answer is not accepted.

See original GitHub issue

Step Number: 47 Step Name: steps.positiveLookbehind.title Language: en-us


What is the problem you are experiencing? Entered expressions (?<=$)\d+ doesn’t allow me to continue to the next question despite matching the answer.

Screen Shot 2021-11-17 at 8 42 35 AM

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Reactions:1
  • Comments:5 (3 by maintainers)

github_iconTop GitHub Comments

1reaction
aykutkardascommented, Nov 17, 2021

https://caniuse.com/js-regexp-lookbehind

The problem seems to be that safari doesn’t support this step. I’ll find a way to get this working for people who prefer to use Safari. In the worst case, you will be able to pass these steps and continue training tomorrow.

0reactions
bjacobgordoncommented, Nov 17, 2021

Works, thanks!

Read more comments on GitHub >

github_iconTop Results From Across the Web

python - Positive Lookbehind does not do what I expected
The lookbehind requires 0+ whitespace before the current location. Where is the current location? ^ sets the location at the beginning of the ......
Read more >
Lookahead and Lookbehind Tutorial—Tips &Tricks - RexEgg
This uses a lookahead to restrict the character class \w: (?!Q)\w After the negative lookahead asserts that what follows the current position is...
Read more >
Lookahead and Lookbehind Zero-Length Assertions
The positive lookbehind matches. Because it is zero-length, the current position in the string remains at the m. The next token is b,...
Read more >
Lookahead and lookbehind - The Modern JavaScript Tutorial
Lookbehind is similar, but it looks behind. That is, it allows to match a pattern only if there's something before it. The syntax...
Read more >
Positive and Negative Lookbehind (with Examples)
In this article you will learn about Lookbehind assertions in Regular Expressions their syntax and their positive and negative application.
Read more >

github_iconTop Related Medium Post

No results found

github_iconTop Related StackOverflow Question

No results found

github_iconTroubleshoot Live Code

Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free

github_iconTop Related Reddit Thread

No results found

github_iconTop Related Hackernoon Post

No results found

github_iconTop Related Tweet

No results found

github_iconTop Related Dev.to Post

No results found

github_iconTop Related Hashnode Post

No results found