jagged phoenix
Hello! I have a doubt about function parameters and assignment in JavaScript.
function changeBackgroundColor(newColor) {
document.body.style.backgroundColor = newColor;
}
vs
function sendMe(y) {
y = 5;
}
In the first function, the parameter newColor is written on the right-hand side (RHS) of the assignment, even though it’s a parameter.
But in the second function, the parameter y is written on the left-hand side (LHS).
Why is that?
sturdy folio
The first one takes the input value and assignes the value of it to the DOM bgColor.
The second version takes the input parameter and assigns the value 5 to it.
Very basically:
The first version is a usual „take the input var and cofigure something with it“ style while the second one is more of a „here is a input var, do something with it“ style.
In your case the left part of the equal sign is the target while the right side is the source