sort-array-for-drag-and-drop


Simple array sort logics to use when implements drag and drop

Installation

``bash
npm install sort-array-for-drag-and-drop
`

Usage

`js
const {moveElement} = require('sort-array-for-drag-and-drop');

const array = [
'A',
'B',
'C',
];

console.log(moveElement(array, 0, 2)); // -> ['B', 'A', 'C'] (Insert array[0] before array[2])
console.log(moveElement(array, 0, 1)); // -> ['A', 'B', 'C'] (Insert array[0] before array[1], not moved)
console.log(moveElement(array, 0, 0)); // -> ['A', 'B', 'C'] (Not moved)
console.log(moveElement(array, 0, 3)); // -> ['B', 'C', 'A'] (In the case of an index that is exceeded, it inserts to the end)
console.log(moveElement(array, 2, 0)); // -> ['C', 'A', 'B'] (Insert array[2] before array[0])
console.log(moveElement(array, 2, 1)); // -> ['A', 'C', 'B'] (Insert array[2] before array[1])
`

$3

`js
const {moveElementByValue} = require('sort-array-for-drag-and-drop');

// The values must be unique
const array = [
'A',
'B',
'C',
];

console.log(moveElementByValue(array, 'A', 'C')); // -> ['B', 'A', 'C'] (Insert 'A' before 'C')
console.log(moveElementByValue(array, 'A', 'C', true)); // -> ['B', 'C', 'A'] (Insert 'A' after 'C')
console.log(moveElementByValue(array, 'D', 'C')); // -> Error! ('D' is not included)
`

$3

`js
const {moveElementBy} = require('sort-array-for-drag-and-drop');

// The values must be unique
const a = {value: 'a'};
const b = {value: 'b'};
const c = {value: 'c'};
const array = [a, b, c];

// return to compare with values
function getValue(elem) {
return elem.value;
}

console.log(moveElementBy(array, getValue, 'A', 'C')); // -> [B, A, C] (Insert A before C)
console.log(moveElementBy(array, getValue, 'A', 'C', true)); // -> [B, C, A] (Insert A after C)
console.log(moveElementBy(array, getValue, 'D', 'C')); // -> Error! (D is not included)
``