JS anon func code example

Example 1: anonymous function javascript

//Anonymous function; It's not assigned to an indentifier

Array.forEach((arguments) => {
	//This is an anonymous function
})

function forEach(arguments) {
	//This is NOT an anonymous function
}

Example 2: anonymous functions javascript

// Regular function, called explicitly by name .aka “named function”
function multiply(a, b){
	var result = a * b; 
	console.log(result);
} 
multiply(5, 3);

// Anonymous function stored in variable. 
// Invoked by calling the variable as a function
// Anonymous functions don't have a name, 
// so the parentheses appears right after “function” keyword.
var divided = function() {
	var result = 15 / 3;
	console.log("15 divided by 4 is "  + result);
}
divided();

// Immediately Invoked Function Expression.
// Immediately invoked function expressions are anonymous functions 
// with another parentheses pair at the end to trigger them, 
// all wrapped inside parentheses.
// Runs as soon as the browser finds it: 
(function() {
	var result = 20 / 10;
	console.log("20 divided by 10 is " + result);
}())