how to use the isequal function from the underscore library in javascript

To use the isEqual function from the Underscore library in JavaScript, we first need to include the Underscore library in our JavaScript file.

We can do this by either downloading the library and including it in our HTML file with a script tag or by using a package manager like NPM to install the library.

Once we have included the library, we can use the isEqual function to compare two values for equality. Here's an example:

index.tsx
const _ = require('underscore');

const obj1 = { name: 'John', age: 30 };
const obj2 = { name: 'John', age: 30 };
const obj3 = { name: 'Jane', age: 28 };

console.log(_.isEqual(obj1, obj2)); // Output: true
console.log(_.isEqual(obj1, obj3)); // Output: false
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In the above code, we first import the underscore library and declare three objects with different properties. We then compare the first two objects, which have the same properties and values, and the isEqual function returns true. We then compare the first and third objects, which have different property values, and the isEqual function returns false.