Is Useless? (@whitetrefoil/is-useless)

!!!IMPORTANT!!!

If your code isn't targeting the latest syntax spec of JS / ES, please use something like babel to transfer this library.

Description

Something similar to Lodash's _.isEmpty, help to prevent xxx is undefined error. Some functions are the same as Lodash ones, exist to reduce the project size.

Generally theses kinds of value are deemed to be "useless":

• Any value of different type, e.g. a number will be deemed to be a useless string.
• Empty string.
• NaN.
• Infinity / -Infinity.
• Any invalid value, e.g. 0.1 will be deemed to be a useless integer.
• String constructed by new String(), number constructed by new Number().

Usage

See test specs in /tests/*.spec.ts for usage.

Changelog & Roadmap

v0.2.0

• Update npm dependencies.

v0.1.1

• Update npm dependencies.

v0.1.0

• Initial release.

License

Unlicense (http://unlicense.org/)