@ffras4vnpm/necessitatibus-dolores-nisi ^{[![Version Badge][npm-version-svg]][package-url]}

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An ESnext spec-compliant Array.prototype.findLast shim/polyfill/replacement that works as far down as ES3.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.

Because Array.prototype.findLast depends on a receiver (the this value), the main export takes the array to operate on as the first argument.

Getting started

``sh
npm install --save @ffras4vnpm/necessitatibus-dolores-nisi
`

Usage/Examples

`js
var findLast = require('@ffras4vnpm/necessitatibus-dolores-nisi');
var assert = require('assert');

var arr = [1, [2], [], 3, [[4]]];
var isNumber = function (x) { return typeof x === 'number' };

assert.deepEqual(findLast(arr, isNumber), 3);
`

`js
var findLast = require('@ffras4vnpm/necessitatibus-dolores-nisi');
var assert = require('assert');
/ when Array#findLast is not present /
delete Array.prototype.findLast;
var shimmed = findLast.shim();

assert.equal(shimmed, findLast.getPolyfill());
assert.deepEqual(arr.findLast(isNumber), findLast(arr, isNumber));
`

`js
var findLast = require('@ffras4vnpm/necessitatibus-dolores-nisi');
var assert = require('assert');
/ when Array#findLast is present /
var shimmed = findLast.shim();

assert.equal(shimmed, Array.prototype.findLast);
assert.deepEqual(arr.findLast(isNumber), findLast(arr, isNumber));
`

Tests


Simply clone the repo, npm install, and run npm test`

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