Javascript中匿名函数的调用与写法实例详解(多种)_javascript技巧

(function(x,y){
alert(x+y);
return x+y;
}(3,4)); 

(function(x,y){
alert(x+y);
return x+y;
})(3,4); 

void function(x) {
x = x-1;
alert(x);
}(9);

-function(x,y){
alert(x+y);
return x+y;
}(3,4);
+function(x,y){
alert(x+y);
return x+y;
}(3,4);
--function(x,y){
alert(x+y);
return x+y;
}(3,4);
++function(x,y){
alert(x+y);
return x+y;
}(3,4); 

~function(x, y) {
alert(x+y);
return x+y;
}(3, 4); 

[function(){
console.log(this) // 浏览器得控制台输出window
}(this)] 

typeof function(){
console.log(this) // 浏览器得控制台输出window
}(this) 

delete function(){
console.log(this) // 浏览器得控制台输出window
}(this) 

void function(){
console.log(this) // 浏览器得控制台输出window
}(this) 

new function(win){
console.log(win) // window
}(this) 

new function(){
console.log(this) // 这里的this就不是window了
} 

 function(){
console.log(this) // window
}(); 

^function(){
console.log(this) // window
}(); 

function(){
console.log(this) // window
}(); 

function(x,y){
alert(x+y);
return x+y;
}(3,4); 

(function() { 
alert('water'); 
})(); 

(function(o) { 
alert(o); 
})('water'); 

(function(o) { 
console.log(o); 
return arguments.callee; 
})('water')('down'); 

~(function(){ 
alert('water'); 
})();//写法有点酷~ 

void function(){ 
alert('water'); 
}();//据说效率最高~ 

+function(){ 
alert('water'); 
}(); 

-function(){ 
alert('water'); 
}();

~function(){ 
alert('water'); 
}();

!function(){ 
alert('water'); 
}(); 

(function(){ 
alert('water'); 
}());//有点强制执行的味道~