Imagine the function as a type, like an int. You can return ints in a function. You can return functions too, they are object of type "function". Now the syntax problem: because functions returns values, how can you return a function and not it's returning value? by omitting brackets! Because without brackets, the function won't be executed! So:

May 4, 2011 · JavaScript passes a value from a function back to the code that called it by using the return statement. The value to be returned is specified in the return keyword. Share

Jun 10, 2017 · When a return is encountered in a function. It will return to the point immediately after the code that called the function. If nothing is specified after the return statement, that is all that happens. However if a literal is returned like 2 or 3,etc, a literal is returned. You can also return a Boolean "true/false ", a string, or a variable.

Aug 4, 2011 · This code creates a function generator. The first function (whose reference is stored in f) accepts a reference to another function (a). Then f creates a function that closes over the parameter a and returns a reference to the new function that will …

Feb 13, 2014 · O return no javascript é semelhando ao return em Java e C#, que são as linguagens que eu tenho conhecimento, já no Delphi o return pelo pouco que conheço funciona de maneira diferente , sendo que ao passar por um return em javascript a function (ou o escopo atual) é abortado não prosseguindo no fluxo, e retornando o valor ao seu invocador ...

Jul 12, 2017 · Call the function and save the return value of that very call. ... Javascript to return a function, but ...

Oct 8, 2018 · Your doSomething function is being exectued, the AJAX request is being made but it happens asynchronously; so the remainder of doSomething is executed and the value of status is undefined when it is returned. Effectively, your code works as follows: function doSomething(someargums) { return status; } var response = doSomething();

Aug 26, 2018 · In JavaScript functions are known as "First-class function" this means you can return / pass functions as any other type like (object / numbers). You can find more about this here . You can break this one into variables to make it more clear such as:

Dec 21, 2016 · Your own question title is basically the answer: you've written the createDrinkOrder() function as something that returns another function. If you make a function but never call it, the function won't do anything. You don't need a variable involved as in your serveOnePassenger() function. You could create the function and call it with one ...

Dec 29, 2012 · This is just my solution. I'm still grabbing at straws trying to understand asynch behaviour, but here's what worked: