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Platypus Innovation Blog

10 February 2014

Javascript Enums

Enums are a useful way to handle a set of constants. They protect against typos and bad-values, help to spot missed cases, and make refactoring a lot safer.

Javascript does not have enums. So how can we get the same benefits?

Enum.js is a simple class which gives you enum-like behaviour.

Example: Instead of writing e.g. if (sibling == 'BROTHER') ... throughout your code, write Sibling = new Enum('BROTHER SISTER'); then use if (Sibling.isBROTHER(x)) ....

Here's the Enum.js code as a gist

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