Using an equal sign (or not) with an array option changes the value
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 42/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- javascript, node.js
- Domain
- cli
Research direction
Reproduce the two commands in the provided yargs.js example, comparing --opt="" with --opt "". Start by tracing the yargs-parser option parsing entry point and identify the intended behavior for an empty array value. Add regression coverage for both forms and verify that the resulting values follow the agreed behavior.
Written by the indexing model from the issue text.
Description
When using the following code:
const yargs = require('yargs')
console.log(yargs.option('opt', { array: true }).parse().opt)
Using a = or not changes the parsed value, which is quite confusing:
$ node yargs.js --opt=""
[]
$ node yargs.js --opt ""
[ '' ]
Using yargs 16.2.0 on Node 15.6.0.
- Dominant language
- JavaScript
- Stars
- 519
- Forks
- 129
- Avg merge
- 1h 34m
- Merged PRs (30d)
- 1
Contributor guide
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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.
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