✈️ How to Check if an Array is Empty in JavaScript? 🚀 🔐

Method 1: Using the length Property

The simplest and most common way to check if an array is empty is by using the length property. The length property returns the number of elements in the array. If the length is zero, the array is empty.

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Example:

let arr = [];
if (arr.length === 0) {
    console.log("The array is empty.");
} else {
    console.log("The array is not empty.");
}

Explanation:

• In this example, the array arr is initialized as an empty array ([]).
• The if statement checks if the length of the array is zero. If true, it logs "The array is empty"; otherwise, it logs "The array is not empty."

Method 2: Using Array.isArray() and length

Before checking if an array is empty, it’s good practice to ensure the variable is actually an array. The Array.isArray() method can be used in combination with the length property to perform this check.

Example: