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.

Invalid regular expression: /\${[^}]+}/: Incomplete quantifier

See original GitHub issue

After optimization: /\$\{[^}]+\}/u -> /\${[^}]+}/u, I have Invalid regular expression error:

const regex1 = /\$\{[^}]+\}/u

const regex2 = /\${[^}]+}/u;
VM356:1 Uncaught SyntaxError: Invalid regular expression: /\${[^}]+}/: Incomplete quantifier
    at <anonymous>:1:16
(anonymous) @ VM356:1

Same with:

/{{([^{}]+?)}}/gu -> /\{\{([^{}]+?)\}\}/gu: Lone quantifier brackets
/\$\{$/u -> /\${$/u: Incomplete quantifier
/^\/([^\\[]|\\.|\[([^\\\]]|\\.)+\])*\/[gimuys]*$/u -> /^\/([^[\\]|\\.|\[([^\\\]]|\\.)+])*\/[gimsuy]*$/u: Unterminated group
/\$\{[^}]+\}/u -> /\${[^}]+}/u: Incomplete quantifier
/\\(\$\{|\r\n?|\n|.)|["']|\$\{|(\r\n?|\n)/gu -> /\\(\${|\r\n?|\n|.)|["']|\${|(\r\n?|\n)/gu: Incomplete quantifier

Issue Analytics

State:
Created 2 years ago
Reactions:2
Comments:6 (3 by maintainers)

Top GitHub Comments

2reactions

EvgenyOrekhovcommented, Jul 26, 2021

One more minimal reproduction:

/\]/u -> /]/u: Lone quantifier brackets

0reactions

DmitrySoshnikovcommented, Jul 26, 2021

@EvgenyOrekhov thanks for the extra example. I won’t appreciate a PR fixing this issue if you’d like to come up with one.

Top Results From Across the Web

Incomplete Quantifier on Regex in vscode

I am trying to create a regex expression for the beginning of an object so I can replace the block complete with a...

Incomplete Quantifier On Regex In Vscode

Incomplete pattern matches are implicitly generated for sums of products. with ... Ordinarily, quantifiers are greedy; they cause the regular expression ...

Quantifiers in Regular Expressions

Ordinarily, quantifiers are greedy. They cause the regular expression engine to match as many occurrences of particular patterns as possible ...

regex incomplete quantifier Code Example

Answers related to “regex incomplete quantifier” · regex diferent of · regex for erlang online · regExp numero français · regex online converter...

Quantifiers - JavaScript - MDN Web Docs - Mozilla

If used immediately after any of the quantifiers * , + , ? , or {} , makes the quantifier non-greedy (matching the...