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

To use the _.isArray() function from the Underscore library in JavaScript, you must first include the Underscore library in your project. You can do so by downloading the library and including it in your project files, or by using a CDN like so:

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"></script>
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Once you have included the Underscore library, you can use the _.isArray() function to check if a variable is an array. Here's an example:

index.tsx
const myArray = [1, 2, 3];
const myObject = {a: 1, b: 2, c: 3};

console.log(_.isArray(myArray)); // outputs true
console.log(_.isArray(myObject)); // outputs false
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In this example, we create an array myArray and an object myObject. We then use the _.isArray() function to check if each variable is an array. The function returns true for myArray and false for myObject, demonstrating the utility of the _.isArray() function for type checking in JavaScript.