Javascript Callback

A function passed as an argument to another function that is called after the function finishes executing. Similar to Continuation. When you’re done, call this next

• Reading files
• Network requests
• Interacting with databases

Example

 
hello(goodbye);
 
function hello(callback){
	console.log("Hello");
	callback();
}
 
function goodbyte(){
	console.log("Goodbye");
}