"Learning Notes" JavaScript coding specification-functions

function expression

anonymous function var anonymous = function () {return true;};/ /named function var named = function named () {return true;} Iife functions immediately-invoked function Expression (function () {  console.log (' hello! ');}) ();

Do not declare functions in a function block (if while etc), although the browser allows you to assign a variable to a function, but different browsers may parse differently.

ECMA-262 defines a block as a set of statements, but the function is not a statement.

Goodvar test; if (AAA) {test = function test () {console.log (' hi~~ ');};}

Badif (AAA) {function test () {Console.log ('??? ');}}

Do not name a parameter arguments, otherwise he will take precedence over the arguments object that is passed to each function scope.

Goodfunction aaa (Name,sexual,age) {}//badfunction bbb (name,sexual,arguments) {}

"Learning Notes" JavaScript coding specification-functions