JavaScript function definition and type of JS basis-ordinary number-self-executing function-anonymous function

Source: Internet
Author: User
Tags function definition

Common functions

1, without parameters

function fucname () { alert ("Hello");} FuncName ()

2, with parameters
function FuncName (ARG) {    alert ("Hello");} FuncName ("Brin")

normal function, self-executing function

1, without parameters

(function() { alert (123);}) ()
2, with parameters

(function(ARG) { alert (123);}) ("Brin")

Note: Self-executing function, no function name structure such as: (function () {code}) ()

Anonymous functions, which can be passed as arguments

Anonymous functions are written in the following format:
Fuction () {
Alert ("Hello");
}
The application of anonymous functions is as follows
Fuction Facname (ARG) { arg ();} ///anonymous function, as a parameter passed to the Facname function funcname (fuction () {alert ("Hello")})

JavaScript function definition and type of JS basis-ordinary number-self-executing function-anonymous function

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