javascript-tutorial / javascript-tutorial/en.javascript.info
Add explanation of Unary plus (+) operator to Extract for money strings exercise
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Description
The solution to Extract the money problem, uses the unary + operator, however, I don't see that explained anywhere in the Strings section. Adding an explanation of that would be helpful.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Unary_plus
function extractCurrencyValue(str) {
return +str.slice(1);
}
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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.
Research direction
Start with the Strings section and the Extract the money exercise linked in the issue, then compare its unary + usage with the MDN reference. Add a concise explanation of the unary plus operator where it fits in the tutorial, including how it applies to the shown solution.
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Assessment
- Tech stack
- javascript
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 58/100