The Lodash _.forOwn() Method Iterates over the own keys of the given object and invoke iteratee for each property. The iteratee function is invoked with three arguments: (value, key, object). Iteratee function may exit iteration early by explicitly returning false.
Syntax:
_.forOwn( object, iteratee_function)
Parameters: This method accepts two parameters as mentioned above and described below:
- object: This is the object to find in.
- iteratee_function: the function that is invoked per iteration.
Return Value: This method returns an object.
Example 1:
// Defining Lodash variable const _ = require('lodash'); var users = { 'a': 1, 'b': 2, 'c': 3 }; _.forOwn(users, function(value, key) { console.log(key, '=', value); }); |
Output:
a = 1 b = 2 c = 3
Example 2:
// Defining Lodash variable const _ = require('lodash'); var users = { 'a': 1, 'b': 2, 'c': 3 }; _.forOwn(users, function(value, key) { if(value > 2) { console.log(key, value); } }); |
Output:
c 3
Note: This will not work in normal JavaScript because it requires the lodash library to be installed and can be installed using the following command:
npm install lodash
