React JS Check if Array is Empty Example

React JS Check if Array is Empty Example

In this tutorial, you will find some built-in methods how to check if an array or object is empty in React JS applications.

How to Check if Array or Object is Empty in React Js

Here are some built-in methods that allow users to check whether an array or object is empty or not:

Method 1: Using the length property

The most common and simple way to check if an array or object is empty is to use the .length property, Here’s an example:

const myArray = [];

if (myArray.length === 0) {
console.log('Array is empty');
} else {
console.log('Array is not empty');
}

Method 2: Using the every() method

The each() method tests whether all elements in an array satisfy a certain condition. If the array is empty, the each() method returns true, Here’s an example:

const myArray = [];

if (myArray.every(item => Object.keys(item).length === 0)) {
console.log('Array is empty');
} else {
console.log('Array is not empty');
}

Method 3: Using the filter() method

The filter() method creates a new array with all elements that satisfy a certain condition. If the array is empty, the filter() method returns an empty array, Here’s an example:

const myArray = [];

if (myArray.filter(item => item !== null).length === 0) {
console.log('Array is empty');
} else {
console.log('Array is not empty');
}

Method 4: Using the some() method

The some() method tests whether at least one element in an array passes a certain position. If the array is empty, the some() method returns false, Here’s an example:

const myArray = [];

if (myArray.some(item => item !== null)) {
console.log('Array is not empty');
} else {
console.log('Array is empty');
}

Conclusion

In this tutorial, you have explored four different ways to check if an object array is empty in React.

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AuthorAdmin

Greetings, I'm Devendra Dode, a full-stack developer, entrepreneur, and the proud owner of Tutsmake.com. My passion lies in crafting informative tutorials and offering valuable tips to assist fellow developers on their coding journey. Within my content, I cover a spectrum of technologies, including PHP, Python, JavaScript, jQuery, Laravel, Livewire, CodeIgniter, Node.js, Express.js, Vue.js, Angular.js, React.js, MySQL, MongoDB, REST APIs, Windows, XAMPP, Linux, Ubuntu, Amazon AWS, Composer, SEO, WordPress, SSL, and Bootstrap. Whether you're starting out or looking for advanced examples, I provide step-by-step guides and practical demonstrations to make your learning experience seamless. Let's explore the diverse realms of coding together.

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