... in a single event loop. It's single threaded, and you only ever get that one thread. All of the javascript you write executes in this loop, and if a blocking operation happens in that code, then it will block the entire loop and nothing else will happen until it finishes. This is the typically s...

...d "index" to the automatically created "id" column? No, this is already done by rails Should I add "index(unique)" to the automatically created "id" column? No, same as above If I add index to two foreign keys at once (add_index (:users, [:category_id, :state_id]), what happens? How is t...

... attribute versus an element? Use an element when you are creating a component that is in control of the template. The common case for this is when you are creating a Domain-Specific Language for parts of your template. Use an attribute when you are decorating an existing element with new fu...

..... So the problem is that there's a few different definitions of untyped. One definition has been talked about in one of the above answers - the runtime doesn't tag values and just treats each value as bits. JavaScript does tag values and has different behaviour based on those tags. So JavaScript o...

I have one form with many input fields. I have put html5 validations 11 Answers 11 ...

... Just for completeness as nobody else has mentioned it. The third parameter to an array slice is a step. So reversing a string is as simple as: some_string[::-1] Or selecting alternate characters would be: "H-e-l-l-o- -W-o-r-l-d"[::2] # outputs "Hello World" The a...

... It's a time zone change on December 31st in Shanghai. See this page for details of 1927 in Shanghai. Basically at midnight at the end of 1927, the clocks went back 5 minutes and 52 seconds. So "1927-12-31 23:54:08" actually happened twic...

... @Somnath - Is jQuery grid the one you were most happy with? I have a similar need, and have been evaluating DataTables, but adding rows (and having them be part of the sort order) is not working well. – MattW Jan 12...

... C++ compilation A compilation in C++ is done in 2 major phases: The first is the compilation of "source" text files into binary "object" files: The CPP file is the compiled file and is compiled without any knowledge about the other CPP files (or even libraries), u...

... There one other parameter I found useful, which I use to eliminate the process window pProcess.StartInfo.CreateNoWindow = true; this helps to hide the black console window from user completely, if that is what you desire. ...