In JavaScript, does it make a difference if I call a function with parentheses?

Question

I noticed a difference when calling a function with empty parentheses, or without any parentheses at all. However, I am not passing any arguments to the function so I wonder

Answer 1

initAll is a reference to a function value and the brackets operator appended to the function name RUNS this function object.

So if you do something like

a = initAll

then a will become the same as initAll - for example you can do a() - but with

a = initAll()

the variable a will get the return value of the executed initAll function