In this tutorial, you will learn about JavaScript callback functions with the help of examples.
In JavaScript, you can also pass a function as an argument to a function. This function that is passed as an argument inside of another function is called a callback function.
Example:
// function
function greet(name, callback) {
console.log('Hi' + ' ' + name);
callback();
}
// callback function
function callback() {
console.log('this is callback fundtion');
}
// passing function as an argument
greet('abhishek', callback);OutPut:
Hi abhishek
this is callback fundtionIn the above program, there are two functions. While calling the greet() function, two arguments (a string value and a function) are passed.
The callback() function is a callback function.
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