In this tutorial, we are going to learn about how to check if a list is empty or not in Python with the help of examples. Checking if list…
How to Check If an Object Is Empty in JavaScript Use Object.keys Loop Over Object Properties With for…in Use JSON.stringify Use jQuery Use Underscore and Lodash Libraries 1. Use Object.keys Object.keys will return an array, which contains the property names of the object. If the length of...
The best way to check if an array is empty in JavaScript is by using the Array.isArray() method (ES5+) and array's length property together like so: // ES5+ if (!Array.isArray(array) || !array.length) { // ... } Similarly, using else, or the inverse would che...
jQuery.isEmptyObject({});// true #Vanilla vs Libraries The answer is it depends! I'm a huge fan of going vanilla whenever possible as I don't like the overhead of an external library. Plus for smaller apps, I'm too lazy to set up the external library 😂. But if your app alrea...
In Vue.js, you can check if a string is empty by using the JavaScript method 'str.length', which returns the number of characters in a string.This property returns the number of characters in the string, so if the string is empty, it will return 0. Here's an example of how you ca...
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) && !!array.length; This works in the following way: In the ...
if(obj.hasOwnProperty(property)){ //Property exists, object is not empty, //so return FALSE. return false; } } //No properties were found, so return TRUE return true; } The JavaScript function above takes in an object as a parameter before checking to see whether it is empty or not...
In your day-to-day JavaScript development, you might need to check if an object is empty or not. And if you’ve had to do this, you probably know that there’s no single direct solution. However, there are different techniques that you can use to create a custom solution for your own...
For JavaScript objects, there is no built-in .length or .isEmpty method available to check if they are empty. Here are 4 different methods that you can use to make sure that a given object does not have its own properties: Object.entries() Method The Object.entries() method takes an ...
str = new String("My name is Tom."); if (str instanceof String) { console.log('The variable is a String.'); } else { console.log('The variable is not a String.'); } Output:The variable is a String. JavaScript Examples »...