How to use the invert function from underscore

underscore.invert is a function that returns an object with the keys and values of a given object reversed.

How does underscore.invert work?

underscore.invert works by taking a single input, which is an object that you want to invert.

The function returns a new object where the keys of the original input object become the values of the new object, and the values of the input object become the keys of the new object.

If multiple keys have the same value, the last key encountered will be the value in the inverted object.

By using underscore.invert, you can quickly and easily swap the keys and values of an object, which can be useful when working with data where you need to look up values based on keys or vice versa.

Ai Example

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
const _ = require("underscore");

// Define an object with keys and values
const originalObject = {
  key1: "value1",
  key2: "value2",
  key3: "value3",
};

// Invert the keys and values of the object
const invertedObject = _.invert(originalObject);

// Log the original and inverted objects
console.log(originalObject); // { key1: 'value1', key2: 'value2', key3: 'value3' }
console.log(invertedObject); // { value1: 'key1', value2: 'key2', value3: 'key3' }

In this example, we first define an object originalObject with keys and values. We then pass originalObject to _.invert to create a new object where the keys and values are reversed. We log both the original and inverted objects to the console. The resulting output demonstrates how underscore.invert can be used to invert the keys and values of an object.