get-intrinsic

Getting intrinsic values

This feature allows you to get the original intrinsic value of Array.prototype.push, which can then be used to push elements to arrays without relying on Array.prototype.push being unmodified.

var getIntrinsic = require('get-intrinsic');
var ArrayPrototypePush = getIntrinsic('%Array.prototype.push%');
var anArray = [1, 2, 3];
ArrayPrototypePush(anArray, 4); // anArray becomes [1, 2, 3, 4]

Accessing deep intrinsics

This feature allows you to access deep intrinsic properties like Object.prototype.hasOwnProperty, which can be used to check for properties without relying on the original method being unaltered.

var getIntrinsic = require('get-intrinsic');
var hasOwn = getIntrinsic('%Object.prototype.hasOwnProperty%');
var hasDuck = hasOwn.call({ duck: 'quack' }, 'duck'); // hasDuck is true

Ensuring unmodified constructors

This feature allows you to use the original Array constructor to create new arrays, ensuring that the constructor has not been modified in the global scope.

var getIntrinsic = require('get-intrinsic');
var ArrayConstructor = getIntrinsic('%Array%');
var myArray = new ArrayConstructor(1, 2, 3); // myArray is [1, 2, 3]