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 ...
Object.entries(objectToCheck).length === 0You should also make sure the object is actually an object, by checking its constructor is the Object object:objectToCheck.constructor === ObjectLodash, a popular library, makes it simpler by providing the isEmpty() function:_.isEmpty(objectToCheck)...
Loop to Get the Length of an Object in JavaScript We want to get the length of an object in JavaScript, but the Object doesn’t have a length property. Only arrays and strings have the length property. let object1 = {name: 'Mark', age: 30}; let string1 = 'Delftstack'; let arr...
We can use the built-in Object.keys method to check for an empty object.const empty = {}; Object.keys(empty).length === 0 && empty.constructor === Object; # Why do we need an additional constructor check?You may be wondering why do we need the constructor check. Well, it's to...
1. The Object.keys() Method The Object.keys() method returns an array of enumerable property names of a given object. And thus, we can use it to check if an object has any properties by counting the length of this array. Let’s have a look at the following example. 1 function isEm...
The x-obs-content-sha256 header can be carried during object or part upload. Its value is a hexadecimal representation of the SHA-256 value of the request body calculated
"No Proxy-Authorization Header" is present in the POST method "Object moved to here." problem "StatusCode: UnsupportedMediaType, Content-Type: application/json; charset=utf-8, Content-Length: 800)" (500) Internal Server Error [ Sys.WebForms.PageRequestManager._initialize error [ASP.NET C# Web...
Thewindow.matchMedia()method returns a MediaQueryList object representing the results of the specified CSS media query string. The value of the matchMedia() method can be any of the media features of theCSS @media rule, like min-height, min-width, orientation, etc. ...
Use JSON.stringify() to Convert Array to String in JavaScript The JSON.stringify() method allows you to convert any JavaScript object or a value into a string. This is cleaner, as it quotes strings inside of the array and handles nested arrays properly. This method can take up to three ...
The ‘Array.unshift()’ is a built-in method in JavaScript frameworks likeSencha Ext JSwhich is used to insert one or more elements at the beginning of an array. The method not only modifies the original array permanently but also returns the new length of the array as well. Thereby, thi...