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GitHub - sindresorhus/negative-array: Negative array index support `array[-1]` u...
source link: https://github.com/sindresorhus/negative-array
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negative-array
Negative array index support
array[-1]using ES2015Proxy
JavaScript doesn't natively support the use of a negative index to get items backwards from the end, but with ES2015 Proxy it's possible. Take a look at the source to see how simple it is to implement and read this short article about it.
Note: With Node.js 16.6.0, you can now use Array#at() instead of this package.
Install
$ npm install negative-array
Usage
import negativeArray from 'negative-array';
// Adds negative array index support to any given array
const unicorn = negativeArray(['🐴', '🎂', '🌈']);
// Get the last item by using a negative index
console.log(unicorn[-1]);
//=> '🌈'
// OMG, YES!Related
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