Array.protoype.moveArray method to move an element of that array from one index to another. Extends the Array.prototype to add the move method. It will check for an existing move method first.
InstallationInstall from npm, like so:
npm install array.prototype.move --save
ImportingSimply require or import the file. There's no function exported, so no variable to assign to on the import/require. The code modifies the Array.prototype via an IFFE (Immediately Invoked Function Expression).
Import/require like so:
You can also add it as a simple script tag if you're not using any module loaders. The file to load in that case is array-prototype-move.js, which you'll find in the /src folder.
import 'array.prototype.move'; // ES6 syntax require('array.prototype.move'); // CommonJS syntax
SyntaxThe syntax is:
myArrayis your array. It can be an array of objects, as well as an array of primitives (strings, numbers etc).
moveFromPositionis the index of the array element that you want to move, where zero is the first element.
moveToPositionis the index of the array where you want the element that you're moving to end up.
will move R2 to the start of the array.
var simpleArray = ["Han Solo", "Luke Skywalker", "C3P0", "R2D2"]; simpleArray.move(3, 0);
The method will also accept negative numbers for either of the "move" variables. In that case, -1 is the last element of the array, -2 is the next to last element, and so on.
will move Han to the end of the array.
var simpleArray = ["Han Solo", "Luke Skywalker", "C3P0", "R2D2"]; simpleArray.move(0, -1);
DevelopmentAs usual, after cloning the repository, install the required packages like so:
There is no build step. Edit the one source file in the /src folder. That's the distribution folder too! (The main entry in the package.json file points to there.)
cd array.prototype.move npm install
To run the test suite.