Lodash _.omitBy() method is used to return a copy of the object composed of the own and inherited enumerable string keyed properties of the object that the predicate doesn't return truthy for. It is the opposite of _.pickBy() method.
Syntax:
_.omitBy( object, [predicate] );Parameters:
- object: This parameter holds the source object.
- predicate: This parameter holds the function that is invoked for every property. It is an optional value.
Return Value:
This method returns the new object.
Example 1: In this example, we are omitting those values which do not support the _.isLength() method and returning the rest of the element as an object.
// Requiring the lodash library
const _ = require("lodash");
// The source object
let obj = {
Name: "GeeksforGeeks",
password: 123456,
username: "your_geeks"
}
// Using the _.omitBy() method
console.log(_.omitBy(obj, _.isLength));
Output:
{Name: "GeeksforGeeks", username: "your_geeks"}Example 2: In this example, we are omiting those values which do not support the _.isNumber() method and returning the rest of the element as an object.
// Requiring the lodash library
const _ = require("lodash");
// The source object
let obj = { 'x': 1, 'y': '2', 'z': 3 };
// Using the _.omitBy() method
console.log(_.omitBy(obj, _.isNumber));
Output:
{'y': '2'}