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" ...
In this guide, we will explore many JavaScript methods on how to check if an object is empty. We'll be using Vanilla JavaScript, as well as common libraries such aslodashandunderscore. When it comes to small applications that don't require external dependencies - checking whether an object i...
1. Use Object.keys Object.keys will return an array, which contains the property names of the object. If the length of the array is 0, then we know that the object is empty. function isEmpty(obj) { return **Object.keys(obj).length === 0**; } We can also check this using Objec...
console.log(isEmptyObject(Date.now()));//output: true 2 console.log(isEmptyObject(newRegExp());//output: false Once again, this method will fail on anullorundefinedinput. 3.JSON.stringify TheJSON.stringifymethod is used to convert a JavaScript object to a JSON string. So we can use ...
Checking if a String is Literal or Object JavaScript provides tools to distinguish between string literals and objects. Here are some approaches: Function check(str) instanceof check: if (str instanceof String) Checks if str is an instance of the String constructor. This will return true for...
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 ...
As of ES-Check version2.0.2, a better debugging interface is provided. When a file errors, An error object will be logged with: the erroring file the error the error stack ⚠️NOTE:Error logs are from the Acorn parser while parsing JavaScript related to specific versions of ECMAScript....
If it returns 0 keys, then the object is empty.Javascript empty object1 2 3 4 5 6 7 //javascript empty object let obj = {}; function isEmpty(object) { return Object.keys(object).length === 0; } let emptyObj = isEmpty(obj); console.log(emptyObj);...
//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. ...
Name Object.hasOwnProperty( ): check whether a property is inherited — ECMAScript v3 Synopsis object.hasOwnProperty(propname) Arguments propname A string that contains the name of a property of object … - Selection from JavaScript: The Definitive Guid