Lodash _.compact() function is used to create an array with all false values removed in JavaScript. so it returns a new array of filtered values.
Syntax:
_.compact(array);
Parameters:
- array: It is an array to be compacted.
Note: The values are false, null, 0, “”, undefined, and NaN are falsey.
Return Value:
This function returns the array after filtering the values.
Example 1: In this example, we are passing a list of both the true and the false elements to the _.compact() function.
javascript
// Requiring the lodash library let _ = require("lodash"); // Original array to be compacted let array = [0, 1, false, 2, '', 3]; let newArray = _.compact(array); console.log("Before compact: " + array); // Printing newArray console.log("After compact: " + newArray); |
Output:
Example 2: In this example, we are passing a list containing all the false values to the _.compact() function.
javascript
// Requiring the lodash library let _ = require("lodash"); // Original array to be compacted let array = [0, false, '', undefined, NaN]; let newArray = _.compact(array); console.log("Before compact: " + array); // Printing newArray console.log("After compact: " + newArray); |
Output:
output
Example 3: In this example, we are passing a list which contains a false element into _.compact() function.
javascript
// Requiring the lodash library let _ = require("lodash");// Original array to be compacted let array = [false, 'HTML', NaN, 'CSS', 'undefined'];let newArray = _.compact(array);console.log("Before compact: " + array);// Printing newArray console.log("After compact: " + newArray); |
Output:
Example 4: In this example, we are passing a list containing modified false values to the _.reduce() function.
javascript
// Requiring the lodash library let _ = require("lodash"); // Original array to be compacted let array = [false, true, 'yes', 'no', "no2"]; let newArray = _.compact(array); console.log("Before compact: " + array); // Printing newArray console.log("After compact: " + newArray); |
Output:
