【JS】Beginner2:Variables & Data
1.Variables
name :name it in a way that tells what you've stored there
value:
2.Create a variable => assign/set its value
declaration & initialization
3.Declaration
Declaring a variable to exist
Picking an empty shelf in a massive warehouse and putting a name on it.
var variableName;
4.Initialization
Giving a variable its value for the first time
Value can change later ,but it's initialized once.
var name=value
string' " ,number
5.Assignment
Set a variable’s value many times