Javascript setinterval function with arguments

Question

How do I pass arguments in the setInterval function Eg:

 intId = setInterval(waiting(argument), 10000);

It shows error : useless setInterval call (missing quotes around argument?)

Answer 1

Use an anonymous function

 intId = setInterval(function(){waiting(argument)}, 10000);

This creates a parameterless anonymous function which calls waiting() with arguments

Or use the optional parameters of the setInterval() function:

 intId = setInterval(waiting, 10000, argument [,...more arguments]);

Your code ( intId = setInterval(waiting(argument), 10000);) calls waiting() with argument, takes the return value, tries to treat it as a function, and sets the interval for that return value. Unless waiting() is a function which returns another function, this will fail, as you can only treat functions as functions. Numbers/strings/objects can't be typecast to a function.

Answer 2

You can use Function#bind:

intId = setInterval(waiting.bind(window, argument), 10000);

It returns a function that will call the target function with the given context (window) and any optional arguments.