Invalid regular expression: missing /
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- Dominant language
- TypeScript
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Description
AST generation works fine but tokenization fails.
Steps to reproduce
esprima.tokenize('var m = a++/ b;')
Expected output
Error should not be thrown
Actual output
'Invalid regular expression: missing /'
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the reported esprima.tokenize('var m = a++/ b;') reproduction and trace the tokenizer path that handles the slash after the postfix increment. Confirm the fix by ensuring this input no longer throws the reported error and produces the expected tokens.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, typescript
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100