Lodash _.pullAllBy() Method
Last Updated :
28 Sep, 2021
The _.pullAllBy() method is used to remove the values from the original array by iterating over each element in the array by using the Iteratee function. It is almost the same as _.pullAll() function.
Syntax:
_.pullAllBy(array, values, [iteratee=_.identity])
Parameters: This method accepts two parameters as mentioned above and described below:
- array: This parameter holds the array that needs to be modified.
- values: This parameter holds the values in an array that needs to be removed from the first array.
- Iteratee: This is the function that Iteratee over each element.
Return Value: It returns an array.
Note: If the iteratee function is not given then _.pullAllBy() function act as _.pullAll() function.
Example 1:
Javascript
const _ = require( "lodash" );
let array1 = [1, 2, 3, 4.2]
let val = [2, 3, 3, 5]
console.log( "Before : " , array1);
_.pullAllBy(array1, val, Math.double);
console.log( "After : " , array1);
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Output:
Example 2:
Javascript
const _ = require( "lodash" );
let array1 = [1, 2, 3, 4.2]
let array2 = [1, 2, 3, 4.2]
let val = [2, 3, 4, 5]
console.log( "Before : " , array1);
_.pullAllBy(
array1, val, Math.floor);
_.pullAllBy(array2, val);
console.log( "When compare funct is given: " ,
array1);
console.log( "When compare funct is not given: " ,
array2);
|
Output:
Note: This will not work in normal JavaScript because it requires the library lodash to be installed.
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