Is there any way to force a JavaScript to abort prematurely. Most languages have an abort() or exit() function that will stop the script or application in its tracks, no questions asked.

Is there something similar for JavaScript?

have you tried break(); ?

break() exits the current loop, it doesn't abort the entire script

Not the most elegant solutions, but you can wrap your script inside a labeled block:

MY_SCRIPT: {

document.write("<p>testing 1");
break MY_SCRIPT;
document.write("<p>testing 2");

} // MY_SCRIPT label

Or you can use try...catch and throw an exception:

try {

document.write("<p>testing 1");
throw("brokeout");
document.write("<p>testing 2");

} catch (err) {
document.write("<p>err = " + err);
}