* chore: Switch to Node 20 + Vitest
* chore: migrate to vitest mock functions
* chore: code style (switch to prettier)
* test: re-enable long-running test
Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime!
see #1193
* chore: code style
* chore: fix failing tests
* Updated Documentation in README.md
* Update contribution guidelines to state usage of Prettier
* fix: set prettier printWidth back to 80
* chore: apply updated code style automatically
* fix: set prettier line endings to lf again
* chore: apply updated code style automatically
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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
* Make `PerfectCube` more correct and readable
* Add negative and Infinity tests
* Fixed comment formatting
* Realized BigInt support is unnecessary
The algorithm would be exactly the same, so there's no added educational value
* Update PerfectCube.js
* Remove space
* Update PerfectCube.js
Now `isInt` is replaced by `isFinite`, because `isInt` is a redundant check
* Update PerfectCube.js
Remove dot
* Parity between `PerfectSquare` and `PerfectCube`
* Update PerfectSquare.test.js
Fixed the old copy-paste error that said "cube" instead of "square". And added `Infinity` test
* chore: add area and area test
* chore: add armstrong number
* chore: add factors
* chore: add perfect cube
* chore: add perfect square
* chore: add perfect number
* chore: add number of digits
* chore: fix according to standardjs
* chore: remove conflicting files
