I am trying to find out if it is possible to edit a file in a single sed command without manually streaming the edited content into a new file and then renaming the new file to the original file name. I tried the -i option but my Solaris system said that -i is an illegal option. Is there a d...

I remember hearing Joel Spolsky mention in podcast 014 that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database. ...

Can anyone suggest a simple (i.e. tens of lines of code, not hundreds of lines) hash function written in (browser-compatible) JavaScript? Ideally I'd like something that, when passed a string as input, produces something similar to the 32 character hexadecimal string that's the typical output of MD...

I need to invoke a process which doesn't require any input from the user, just a trigger. I plan to use POST /uri without a body to trigger the process. I want to know if this is considered bad from both HTTP and REST perspectives? ...

I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general? ...

I am confused on how to separate implementation and declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class? ...

This is not a realworld problem, I'm just trying to understand how promises are created. 2 Answers ...

How do I count the number of <option> s in a <select> DOM element using jQuery? 8 Answers ...

I want to check that Java String or character array is not just made up of whitespaces, using Java? 15 Answers ...

Is there a way in Java's for-each loop 15 Answers 15 ...