In javascript to give the name to a variable, objects or function that we must take into account?

Answer 1

I don't understand the question.
Are you only talking about identifiers? (Names).

var x;
^ this.

or

function a() {}
^ this

If so, you only need to take into account that it is a legal name.

IE:
It cannot have an illegal character.

Answer 2

u need remember What any name of one variable just are only usted un the practice , since the variable are space of memorys...the simple example is ,the contacts in ur telephone , the name is variable and the number its the space of memory...