local variable declaration

1, can local variables and global variable duplicate? A: Yes, the local will screen the overall situation. To use a global variable, you need to use the "::" Local variables can have the same name as global variables, and when referenced within a

Original: http://www.cnblogs.com/GavinDai/archive/2011/10/24/2222735.htmlWe are in the program design, always use the definition of variables and the declaration of variables, but sometimes we are not very clear about the concept, know how it is

Written in front of those have to say crapThe first two days of the class party, in addition to eating and sleeping is to sleep, it is joy, really alone lele than the public Lele ah.PS: Graduating or graduating will have time to gather together,

Two days before the class party, in addition to eat and drink is sleeping, is a joy, is really a lonely lele than the public Lele ah. PS: Graduated or about to graduate have time to get together, after the industry belongs to their own time to get

Methods for defining functionsThere are three main ways to define a function: Functions declaration (Function Declaration) function expression) New function constructor Among them, the function declaration and function

Description of functions and function expressions-advance declaration of function declaration Two days ago, in addition to eating, drinking, and having fun, the class party went to bed. It was so joyful. PS: If you have graduated or are about to

JS in the variable declaration of explicit and implicit declarations. The code is as follows Copy Code VAR i=100;//Explicit declarationi=100;//Implicit declaration of Variables that are explicitly declared

Ways to define functions There are three main ways to define a function: Functions Declaration (Function Declaration)Functional expression function Expression)New function constructor Among them, function declarations and function expressions are

var a=5;function fun () {a=0;         alert (a);    0 alert (THIS.A);     5 var A;        alert (a); 0}fun ();The above code will output 0, 5,0.first of all, our variable declaration assignment in JS is divided into two parts. 1. Variable

I have never noticed the difference between the implicit variable Declaration In JScript and the VaR explicit variable declaration. Although some problems have been encountered in the declaration, it has not caused much attention. I wrote several