I have a constructor in node.js as follows.
function Tree() {
//Redirect to other functions depends upon argument count.
}
And i created objects like
var theTree = new Tree('Redwood');
var theTree = new Tree('Redwood',5);
var theTree = new Tree('Redwood',10,"USA");
My requirement is that i want to redirect to different functions depending upon the number of arguments that came to constructor. How can I find the number of arguments ?
You simply use the arguments.length
variable.
For more info you can read about the arguments object: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/arguments
There is an arguments variable in every function.
function Tree() {
console.log(arguments)
}
There is a local variable arguments that contains all the values that are passed to a function.
arguments.length
this will give the count.
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