Safely access arrays' length property
yarn add @sospedra/len* vendors/scope are a good idea, let's embrace it!
len will return the array target length or 0 👀
Meaning that non-array targets always return 0.
import len from '@sospedra/len'
len([]) // 0
len([1, 2]) // 2
len(9) // 0
len('string') // 0
len(undefined) // 0Most of the errorceptions, bugsnags, sentry, etc. looks like:
Cannot read property 'length' of undefined
And that makes me sad 🤷♀️
Also, by returning the length only of arrays we ensure that it's iterable.
Meaning that you can safely check for .map, .reduce, et altri
if (len(array)) array.map(myCallback)Wonderful 😍