Lodash _.initial() function is used to get all elements of the array in the range 0 to n-2. Thereby getting all elements except the (n-1)th element.
Syntax:
Lodash.initial(arrayObject);Parameters:
- arrayObject: There is only one parameter of type array.
Return Value:
- It returns an array object.
Example 1: In this example, When an array of objects is given we are getting all the elements of that array but not the last one because of the use of the lodash _.initial() function.
// Requiring the lodash library
const _ = require('lodash');
// Original array
let array1 = [
{ 'a': 1, 'b': 2 },
{ 'a': 1 },
{ 'b': 1 }
]
// Using _.initial() function to get
// all elements of the array in
// range (0,n-2])
let initialArray = _.initial(array1);
// Original Array
console.log('original Array: ', array1)
// Printing the initialArray
console.log('initial Array: ', initialArray)
Output:
Example 2: In this example, we are getting all the elements of that array but not the last one because of the use of the lodash _.initial() function.
// Requiring the lodash library
const _ = require('lodash');
// Original array
let array1 = [1, 2, 3, 4]
// Using _.initial() function to get
// all elements of the array in
// range (0,n-2])
let initialArray = _.initial(array1);
// Original Array
console.log('original Array: ', array1)
// Printing the initialArray
console.log('initial Array: ', initialArray)
Output:
Example 3: In this example, we are getting empty array beacuse the original array has only one element.
// Requiring the lodash library
const _ = require('lodash');
// Original array
let array1 = [1]
// Using _.initial() function to get
// all elements of the array in
// range (0,n-2])
let initialArray = _.initial(array1);
// Original Array
console.log('original Array: ', array1)
// Printing the initialArray
console.log('initial Array: ', initialArray)
Output:
