The gist In Node.js, __dirname is always the directory in which the currently executing script resides (see this). So if you typed __dirname into /d1/d2/myscript.js, the value would be /d1/d2. By contrast, . gives you the directory from which you ran the node command in your terminal window (i.e. your working directory) when you use libraries like path and fs. Technically, it starts out as your working directory … Read more
To remove the line and print the output to standard out: To directly modify the file – does not work with BSD sed: Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed: To directly modify the file (and create a backup) – works with BSD and GNU … Read more
Maybe I missed the question, but why not: To override something (or pass extra args), do this: That way you could pass dict of error messages to the second param, and get to it later with e.errors. In Python 2, you have to use this slightly more complex form of super():
The problem is that inside the setTimeout() call, this doesn’t refer to the button. You need to set a variable to keep the reference to the button. I’ve created a sample below. See how I use the variable named $this. UPDATE: Now with modern browsers supporting Arrow Functions, you can use them to avoid altering the this context. See updated snippet below.
I was going to write up my own explanation but this Wikipedia article pretty much sums it up. Here is the basic concept: Copy-on-write (sometimes referred to as “COW”) is an optimization strategy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, you can give them pointers … Read more
They are entirely different constructs. A HashMap is an implementation of Map. A Map maps keys to values. The key look up occurs using the hash. On the other hand, a HashSet is an implementation of Set. A Set is designed to match the mathematical model of a set. A HashSet does use a HashMap to back its implementation, as you noted. However, it implements an entirely different interface. … Read more
You should convert the data you get from console to integers:
Using $(‘#myDiv’).click(function(){ is better as it follows standard event registration model. (jQuery internally uses addEventListener and attachEvent). Basically registering an event in modern way is the unobtrusive way of handling events. Also to register more than one event listener for the target you can call addEventListener() for the same target. http://jsfiddle.net/aj55x/1/ Why use addEventListener? (From MDN) addEventListener is the way to register an event listener as specified in W3C DOM. Its … Read more
std::bitset has a .to_string() method that returns a std::string holding a text representation in binary, with leading-zero padding. Choose the width of the bitset as needed for your data, e.g. std::bitset<32> to get 32-character strings from 32-bit integers. EDIT: Please do not edit my answer for Octal and Hexadecimal. The OP specifically asked for Decimal To Binary.
Use str.join: