The _.pullAt() method is used to remove the element corresponding to the given address and return an array of removed elements. Syntax:
_.pullAt(array, arrayofIndexes)
Parameters: This method accept two parameters as mentioned above and described below:
- array: This parameter holds the array that need to be modify.
- arrayofIndexes: This parameter holds the indexes of elements that need to be removed from array.
Return Value: It returns a new array of removed elements. Example 1: This example removes the given indexed elements from array and returns the array of remaining elements.
javascript
const _ = require('lodash'); let ar = [100, 200, 33, 400, 554] let indexes = [1, 3, 4] let value = _.pullAt(ar, indexes) console.log('Original Array ', ar); console.log('\nRemoved elements array ', value) |
Here, const _ = require(‘lodash’) is used to import the lodash library into the file. Output:
Original Array [ 100, 33 ] Removed elements array [ 200, 400, 554 ]
Example 2: This example removes the given indexed elements from array and returns the array of remaining elements.
javascript
const _ = require('lodash'); let ar = ['a', 'b', 'c', 'd', 'e'] let indexes = [1, 3] let value = _.pullAt(ar, indexes) console.log('Original Array ', ar); console.log('\nRemoved elements array ', value) |
Output:
Original Array [ 'a', 'c', 'e' ] Removed elements array [ 'b', 'd' ]
Example 3: This example removes the given indexed elements from array and returns the array of remaining elements.
javascript
const _ = require('lodash'); let ar = [{'name': 'lodash'}, {'function': 'pullAt'}, {'used on': 'array'}]; let indexes = [1, 2] let value = _.pullAt(ar, indexes) console.log('Original Array ', ar); console.log('\nRemoved elements array ', value) |
Output:
Original Array [ { name: 'lodash' } ]
Removed elements array [ { function: 'pullAt' }, { 'used on': 'array' } ]
Note: This will not work in normal JavaScript because it requires the library lodash to be installed. Reference: https://lodash.com/docs/4.17.15#pullAt
