How do I append the output of a command to the end of a text file? 10 Answers 10 ...

I am trying to optimize a function which does binary search of strings in JavaScript. 3 Answers ...

Is the a short syntax for joining a list of lists into a single list( or iterator) in python? 15 Answers ...

How can I validate a string using Regular Expressions to only allow alphanumeric characters in it? 10 Answers ...

In all our c++ courses, all the teachers always put using namespace std; right after the #include s in their .h files. This seems to me to be dangerous since then by including that header in another program I will get the namespace imported into my program, maybe without realizing, intending or...

I am trying to sort an array with objects based on multiple attributes. I.e if the first attribute is the same between two objects a second attribute should be used to comapare the two objects. For example, consider the following array: ...

I have data that is organized in kind of a "key-key" format, rather than "key-value". It's like a HashMap, but I will need O(1) lookup in both directions. Is there a name for this type of data structure, and is anything like this included in Java's standard libraries? (or maybe Apache Commons?) ...

Is it a deliberate design decision or a problem with our current day browsers which will be rectified in the coming versions? ...

What is the simplest/best way to ensure only one instance of a given script is running - assuming it's Bash on Linux? 14 An...

Coffeescript looks pretty cool. Has anyone used it? What are its Pros & Cons? 7 Answers ...