Which of the following is the correct way to disable register button while request is processing?

Which is true about asynchronous request?

Which is true to convert AJAX JSON response into object?

Which parameter to request.open() are correct?

Why would a public api return a non valid json like this? for(;;); {'key1':val1,'key2': 'val2'}

Which answer is correct in order to send the following data with request?

Which browser features and/or technologies must be enabled, at a minimum, for AJAX techniques to function properly?

In standard JavaScript, what makes asynchronous execution of Ajax calls possible?

What does the acronym "blob" stand for when referring to data types?

Which HTML5 feature can improve the experience of a user using the "back" and "forward" buttons when using AJAX techniques?

What is the preferred method for maintaining back/forward button and crawler functionality in Ajax-driven web applications?