Lodash _.forOwn() Method
Lodash _.forOwn() method Iterates over the own keys of the given object and invokes 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:
- 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: In this example, we are printing the key and value of the given object by the use of the lodash _forOwn() method.
javascript
// Defining Lodash variable const _ = require( 'lodash' ); let 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: In this example, we are printing the key and having greater than 2 value of the given object by the use of the lodash _forOwn() method.
javascript
// Defining Lodash variable const _ = require( 'lodash' ); let 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
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