So far, we have been working with one type of variable in WebAssembly. These are known as local variables, or stack variables. There is another type that will allow us to not only utilize them across our WebAssembly context but also share them between our JavaScript and our WebAssembly. But first, we will need to discuss the differences between the stack and the heap.
There is a difference between global/local variables and the stack/heap. For now, we are going to keep things simple and treat global variables as if they are on the heap and local variables as if they are on the stack. Later, our application will have a global state that is not on the heap, but it is best to try to keep the ...
