Detailed explanation of js immediate execution function instance

This article mainly shares with you js immediate execution function examples, hoping to help everyone.

for(var i=0;i<5;i++){
			(function(i){
				setTimeout(function(){
					console.log(i);
				},0);
			})(i);
		}
		//0 1 2 3 4

The immediate execution function will execute the code inside immediately. Even if it contains asynchronous execution code, it will be executed immediately.

for(var i=0;i<5;i++){
			setTimeout(function(){
				console.log(i);
			},0);
		}
		//5 5 5 5 5

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