ttmarek/move-element

Move an array element to a given position.

move-element

Move an array element to a given position.

Install

    npm install --save --save-exact move-element

Usage

    const moveElement = require('move-element')
    // Say you have an array of fruits
    const fruits = ['Oranges', 'Apples', 'Bananas', 'Pineapples']
    // And you want to swap the positions of 'Apples' and 'Bananas'
    // First you make a function that returns true for the element you want to move
    const isApples = (x) => x === 'Apples'
    // Then you call moveElement with the index you want to move the element to
    const newArray = moveElement(fruits, isApple, 2)
    // Then newArray will be set to:
    // ['Oranges', 'Bananas', 'Apples', 'Pineapples']

move-element's Issues

Suggestion for a friendlier API

import moveElement from 'move-element';

const fruits = ['Apple', 'Banana', 'Pineapple', 'Orange', 'Grape'];
const isOrange = fruit => fruit === 'Orange';

const newFruits = moveElement(isOrange).in(fruits).toIndex(0);

console.log(newFruits);

 [ 'Orange', 'Apple', 'Banana', 'Pineapple', 'Grape']

but wait, there's more

const newFruits = moveElement(isOrange).in(fruits).toIndex(2);
const newFruits = moveElement(isOrange).in(fruits).toTop();
const newFruits = moveElement(isOrange).in(fruits).toBottom();
const newFruits = moveElement(isOrange).in(fruits).toIndexWhere(isApple);