Closure in Javascript

closure is an inner function that has access to the outer (enclosing) function’s variables—scope chain. The closure has three scope chains: it has access to its own scope (variables defined between its curly brackets), it has access to the outer function’s variables, and it has access to the global variables.

code

This code block is no longer available. The original code is shown below.

    
function dosomecalculations() {var a=5;var b=4;function multiply() {
    var result = a*b;
    return result;
}
return multiply;
         }

var output = dosomecalculations(); 

//code for output
console.log("The result:", output());