Visual Studio 2008 “Format Document/Selection” command and a function named “assert” in JavaScript code

Just have found some funny behavior of the Visual Studio 2008 editor.  Sorry if it is already well known bug.

If you happened to have a JavaScript function named “assert” in your code (and there is pretty high likelihood in my opinion), for example something like:

function assert(x, message) {
    if (x) console.log(message);
}

then when either Format Document (Ctrl + K, Ctrl + D) or Format Selection (Ctrl + K, Ctrl + F) command is applied to the document/block containing the function, the result of the formatting will be:

functionassert(x, message) {
    if (x) console.log(message);
}

That’s it. function and assert are now joined into one solid word.

So be aware of the fact in case you suddenly start receiving  strange exception in your JavaScript code: missing ; before statement functionassert(x, message)

And no, it is not an April Fool's joke. Just try for yourself.