To check if a JavaScript array is empty or not, you can make either of the following checks (depending on your use case): const empty = !Array.isArray(array) || !array.length; const notEmpty = Array.isArray(array
With JavaScript, it can be difficult to check whether an object is empty. With Arrays, you can easily check withmyArray.length, but on the other hand, objects do not work that way. The best way to check if an object is empty is by using a utility function like the one below. functi...
Checking an Empty Array in C# There are several ways to do this. Before performing any actions on an array, it is important to check that the array is not empty. Method 1 - Using the Length property The Length property of an array returns the number of elements in the array. If the ...
//To check if an array is empty using javascript function arrayIsEmpty(array) { //If it's not an array, return FALSE. if (!Array.isArray(array)) { return FALSE; } //If it is an array, check its length property if (array.length == 0) { //Return TRUE if the array is empty...
To check if a variable is an array in Javascript is essential to handle data appropriately. We will discuss three different approaches to check if a variable is an array or not.We are having an array and a string, and our task is to check if a variable is an array in JavaScript....
If the array contains more than 0 keys, the object isn't empty.You could also do the check implicitly, e.g.: index.js if ([].length) { // 👉️ if this runs, the array is not empty } In this example, we access the length property on an empty array, which evaluates to 0...
If it returns an empty array, it means the object does not have any enumerable property, which in turn means it is empty.Object.entries(objectToCheck).length === 0You should also make sure the object is actually an object, by checking its constructor is the Object object:...
How to Check if Object is Empty in JavaScriptHere's a Code Recipe to check if an object is empty or not. For newer browsers, you can use plain vanilla JS and use the new "Object.keys" 🍦 But for older browser support, you can install the Lodash library and use their "isEmpty" ...
Example 3 : vue js check if string is empty In this third example of this tutorial, we use Vue.js programming language to check if a string is empty or null, undefined using `str && str.trim() !== ""`. This is a common task when we want to validate user input or filter out ...
# Check if all Values in an Array are Equal using a for...of loop This is a three-step process: Use a for...of loop to iterate over the array. Check if each element is not equal to the first array element. If the condition is met, set a boolean variable to false and exit the...