Nuria Torres

Awesome! How frustrating it is when you have an amazing website and you need to do complicated tricks just ot adapt it to old IE versions

As @milesrout said a pointer is a memory address. If you've ever programmed in assembler code, when you're working with pointers, the pointer literally saves the memory address where you want to read/write data.

When you see the translation for example of a C code into assembler where you are passing a parameter as a reference and not as a value, the traduction as assembler converts that parameter into an address that is read inside your function. That would be the exact way a pointer works in low level.