Lodash _.dropRight() Function
Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc.
The _.dropRight() function is used to delete the elements from the right of the array i.e from the (n-1)th element.
Syntax:
_.dropRight(array, n)
Parameter:
- array: It is the original array from which elements are to be deleted.
- n: Here n is the number of elements that are to be deleted from the array. By default, it is set to one.
Return Value: It returns the array.
Note: Install the lodash module by using command npm install lodash before using the code given below.
Example 1: When n is less than the size of an array.
// Requiring the lodash library const _ = require("lodash"); // Original array let array1 = [1, 2, 3, 4, 5] // Using _.dropRight() function let newArray = lodash.dropRight(array1, 2); // Original Array console.log("original Array: ", array1) // Printing the newArray console.log("new Array: ", newArray) |
Output:
Example 2: When n is greater than the size of the array.
// Requiring the lodash library const _ = require("lodash"); // Original array let array1 = [1, 2, 3, 4, 5] // Using _.dropRight() function let newArray = lodash.dropRight(array1, 10); // Original Array console.log("original Array: ", array1) // Printing the newArray console.log("new Array: ", newArray) |
Output:
Example 3: When an array of objects is given and n is not given.
// Requiring the lodash library const _ = require("lodash"); // Original array let array1 = [ { "a": 1, "b": 2 }, { "a": 2, "b": 1 }, { "b": 2 } ] // Using _.dropRight() function let newArray = lodash.dropRight(array1); // Original Array console.log("original Array: ", array1) // Printing the newArray console.log("new Array: ", newArray) |
Output:
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