How to Remove a Key from an Object in JavaScript

How to Remove a Key from an Object in JavaScript1.js

const myObject = { key: "🍫" }
myObject.key2 = "🍬"
myObject.key3 = "🍭"
console.log(delete myObject.key)
myObject.key2 = undefined
console.table(Object.entries(myObject))
// (index) key  value
//    0    key2 undefined
//    1    key3 🍭

// Keys not on the object are undefined
console.log(myObject.key4) // undefined
// delete returns true for non-existent keys
console.log(delete myObject.key4) // true
console.log(myObject.key) // undefined
console.log(delete myObject.key) // true

// You can't delete variables, just keys
console.log(delete myObject) // false

How to Remove a Key from an Object in JavaScript2.js

// A non-configurable key is set using Object.defineProperty()
Object.defineProperty(myObject, "name", { configurable: false })
// Non-configurable keys can't be deleted by the delete keyword
console.log(delete myObject.name) // false