Objects are always passed by reference.
If you assign a variable the same value of another, if it’s a primitive type like a number or a string, they are passed by value:
Take this example:
let age = 36
let newAge = age
newAge = 37
console.log(age) //36
With primitive types, the copy is an entirely new entity. With objects instead, you copy a reference to the same object:
const car = {
color: "blue",
}
const anotherCar = car
anotherCar.color = "yellow"
car.color //'yellow'
Remember that also arrays and functions are objects, so they are passed by reference, too.
Lessons in this unit:
Are you intimidated by Git? Can’t figure out
merge vs rebase? Are you afraid of screwing up
something any time you have to do something in
Git? Do you rely on ChatGPT or random people’s
answer on StackOverflow to fix your problems?
Your coworkers are tired of explaining Git to
you all the time? Git is something we all need
to use, but few of us really master it. I
created this course to improve your Git (and
GitHub) knowledge at a radical level. Launching
May 21, 2024. Join the waiting list!