Is javascript works async as default??

Question

I'm calling a controller through javascript button click function. The controller is working fine but it does not return the view which I have specified in the controller instead of that it returns same view where I'm called the controller.

Sachin Singh · Answer

It's not about javascript rather ajax. You must be making an ajax call, and you are getting the correct (new html) returned inside the sucess function but you are not using it (setting /replacing the current page with returned one).

Pankaj Patel · Answer

Hi Gopi, For your issue you can set async : true or false, in $.ajax({ method using jQuery Fore more details: When to use async false and async true in ajax function in jquery https://stackoverflow.com/questions/18366118/when-to-use-async-false-and-async-true-in-ajax-function-in-jquery Hope this will help you!

Sachin Singh · Answer

No, that is not the purpose of ajax. anchor tags are used for that purpose. or window.location.href = abc.com?a=1&&b=2

Gopi · Answer

Hi Sachin, As per my knowledge ajax calls returns the results in same view. But I want to display the results in new view file. Is it possible in Ajax.

Rajesh Gami · Answer

Hello Gopi By default, JavaScript is a synchronous , single-threaded programming language. This means that instructions can only run one after another, and not in parallel. Consider the little code snippet below: let a = 1; let b = 2; let sum = a + b; console.log(sum); The above code is pretty simple – it sums two numbers and then logs the sum to the browser console. The interpreter executes these instructions one after another in that order until it is done. But this method comes along with disadvantages. Say we wanted to fetch some large amount of data from a database and then display it on our interface. When the interpreter reaches the instruction that fetches this data, the rest of the code is blocked from executing until the data has been fetched and returned. Now you might say that the data to be fetched isn't that large and it won't take any noticeable time. Imagine that you have to fetch data at multiple different points. This delay compounded doesn't sound like something users would want to come across. Luckily for us, the problems with synchronous JavaScript were addressed by introducing asynchronous JavaScript.