I like the flatness of the new Async/Await feature available in Typescript, etc. However, I'm not sure I like the fact that I have to declare the variable I'm awaiting on the outside of a try...catch block in order to use it later. Like so:...
Perhaps I misunderstood how catching errors with async/await is supposed to work from things articles like this https://jakearchibald.com/2014/es7-async-functions/ and this http://pouchdb.com/2015/03/05/taming-the-async-beast-with-es7.html, but my...
As discussed here, function definitions can be used before they're defined. But as soon as a section of code is wrapped in a try block, this ceases to be the case.  This displays "Hello world":  hello(); function hello() { alert("Hell...
For some reason this code gives me an uncaught exception error. It seems the catch block is not catching the error. Are try catch blocks scoped in such a way that I cannot throw an error in a nested function, and then expect it to be caught by a catc...
My Node.js script crashes because of a thrown ENOMEM (Out of memory) errnoException when using spawn.  The error:  child_process.js:935   throw errnoException(process._errno, 'spawn');         ^  Error: spawn ENOMEM   at errnoException (child...
How can Javascript duplicate the four-part try-catch-else-finally execution model that other languages support?  A clear, brief summary is from the Python 2.5 what's new. In Javascript terms:  // XXX THIS EXAMPLE IS A SYNTAX ERROR try {   // Prot...
Just as you can convert the following:  var t; if(foo == "bar") {     t = "a"; } else {     t = "b"; }   into:  t = foo == "bar" ? "a" : "b";   , I was wondering if there is a shorthand / oneline way to...
When I'm developing normal web application with JavaScript, the try/catch statement is not needed usually. There's no checked exception, File IO or database connection in JavaScript.   Is try/catch statement useful in JavaScript? When can I u...
I would like to use the window.history.pushState() function in supporting browsers. Unfortunately I'm getting an error on Firefox:     TypeError: history.pushState is not a function   How is it possible to avoid that?...
I'm trying to understand why I'm getting the following error, not how to work around it.  Passing the following code to JSLint or JSHint yields the error 'err' is already defined.  /*jslint white: true, devel: true, onevar: true, brow...

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