var add = (function () {
var counter = 0;
return function () {counter += 1; return counter}
})();
add();
add();
add();
and significance of “()” after ‘add’ function definition
this is the same example as you have given in the video but implementation is confusing
Here we create a function and before storing it in add variable, we call it using (). The result of that function call, which is also a function, is stored in variable add. Thus further add() will run the previously returned function, which increases the counter.
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