https://stackoverflow.com › questions › 684575

Object.keys will return each key of the object as an array, for example: const user = {. name: 'John Doe', age: 25, }; Object.keys(user) // ['name', 'age'] forEach will run the function in first parameter for each element, and the delete keyword deletes a key from an object.

https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Operators › delete

L'opérateur delete permet de retirer une propriété donnée d'un objet. Lorsque la suppression se déroule sans problème, l'opération renvoie true, sinon c'est la valeur false qui est renvoyée. Voici quelques scénarios importants qui précisent ce comportement :

https://developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › delete

The delete operator removes a property from an object. If the property's value is an object and there are no more references to the object, the object held by that property is eventually released automatically.

https://phillcode.io › javascript-delete

delete is direct and straightforward, making it a clear choice for simple object manipulations. Reflect.deleteProperty offers a functional approach, potentially enhancing readability and predictability, especially in more complex codebases.

https://coderburg.com › blog › how-to-clear-an-object-in-javascript

The simplest way to clear an object is by setting it to an empty object literal {}. This effectively turns your object into a blank slate. myObject={}; Pros: Super easy and readable. Immediate destruction of all properties. Cons: If the object was referenced elsewhere, those references won't get updated.

https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Global_Objects › Set › clear

La méthode clear () permet de retirer tous les éléments d'un ensemble Set.

https://coreui.io › blog › how-to-remove-a-property-from-an-object-in-javascript

This article explores various techniques for removing properties from a JavaScript object, discussing the advantages and potential pitfalls of each method. We’ll also cover how to remove multiple properties from a single object efficiently.

https://www.w3schools.com › howto › howto_js_remove_property_object.asp

The delete operator deletes a property from an object: Example. var person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue" }; delete person.age; // or delete person ["age"]; // Before deletion: person.age = 50, after deletion, person.age = undefined. Try it Yourself »

https://stackoverflow.com › questions › 1232040

Ways to clear an existing array A: Method 1. (this was my original answer to the question) A = []; This code will set the variable A to a new empty array. This is perfect if you don't have references to the original array A anywhere else because this actually creates a brand new (empty) array.