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: Me...
While writing a program or any script or any piece of frontend code in Javascript, if you want to check if an array is empty or not, you can use the length property of arrays in Javascript. The length property of the array returns the count of the number of elements stored in the ...
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
Vue.JS check if Array,Object or String is empty: In Vue.js, To check if an array is empty in Vue.js, you can use the Array.length property, which returns the number of elements in the array To check if the string is empty in Vue.js, you can use the
The method returns the index position of the item given in the if-else block. Again, when we passed an item not present in the JS array, it returned and executed the else block of the code. Method 3: Using the find() method to check the array: ...
Unlike the array search functions we have seen so far, the.filter()returns an array containing the elements satisfying the conditions mentioned in the arrow function. If element is found, the returned array will contain the required elements, else an empty array will be returned by the function...
a static method that returns an Array when we pass an object to it, which contains the property names (keys) belonging to that object. We can check whether thelengthof this array is0or higher - denoting whether any keys are present or not. If no keys are present, the object is empty...
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" ...
Output of React Js Check String is EmptyExample 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 ...
The Object.keys() method is the best way to check if an object is empty because it is supported by almost all browsers, including IE9+. It returns an array of a given object's own property names. So we can simply check the length of the array afterward: Object.keys({}).length ==...