The _.unzipWith() method accepts iteratee to specify how regrouped values should be combined. The iteratee is invoked with the elements of each group.
Syntax:
_.unzipWith(array, [iteratee = _.identity])
Parameters: This method accepts two parameters as mentioned above and described below:
- array: This parameter holds the array of grouped elements to process.
- [iteratee = _.identity]: This parameter holds the function to combine regrouped values.
Return Value: This method returns the new array of regrouped elements.
Example 1: Here, const _ = require(‘lodash’) is used to import the lodash library into the file.
Javascript
// Requiring the lodash library const _ = require( "lodash" ); // Original array var zipped_arr = _.zip([15, 7], [185, 20], [478, 123]); // Use of _.unzipWith() method let gfg = _.unzipWith(zipped_arr, _.subtract); // Printing the output console.log(gfg) |
Output:
[8, 165, 355]
Example 2:
Javascript
// Requiring the lodash library const _ = require( "lodash" ); // Original array var zipped_arr = _.zip([4, 9], [185, 20], [478, 123]); // Use of _.unzipWith() method let gfg = _.unzipWith(zipped_arr, _.add); // Printing the output console.log(gfg) |
Output:
[13, 205, 601]