Ryan KesPGP keyI build stuffEmailGithubTwitterLast.fmMastodonMatrixJavaScript Object Mutability
Description
With objects, there is a difference between having two references to the same object and having two different objects that contain the same properties.
Examples
let object1 = { value: 10 }
let object2 = object1
let object3 = { value: 10 }
console.log(object1 == object2) // true
console.log(object1 == object3) // false
object1.value = 15
console.log(object2.value) // 15
console.log(object3.value) // 10`const` objects can have their values changed
const score = { visitors: 0, home: 1 }
score.visitors = 23
console.log(score) // { visitors: 23, home: 1 }