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String concatenation in Ruby
...or when ROOT_DIR is nil.
When dealing with pathnames, you may want to use File.join to avoid messing up with pathname separator.
In the end, it is a matter of taste.
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What is the difference between UTF-8 and ISO-8859-1?
...any supported languages, some characters are missing. If you create a text file in this encoding and try copy/paste some Chinese characters, you will see weird results. So in other words, don't use it. Unicode has taken over the world and UTF-8 is pretty much the standards these days unless you have...
How to send a simple string between two programs using pipes?
...out and reading from stdin in prog2. You can also read stdin by opening a file named /dev/stdin (but not sure of the portability of that).
/*****************************************************************************
Excerpt from "Linux Programmer's Guide - Chapter 6"
(C)opyright 1994-1995, Sco...
How to generate a Dockerfile from an image?
Is it possible to generate a Dockerfile from an image? I want to know for two reasons:
8 Answers
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Where can I find and submit bug reports on Google's Chrome browser?
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Mostly end-users file bugs through there. If you have technical details and a reproduction of the bug, file it through crbug.com/new (which is equivalent to the accepted answer).
– Paul Irish
Jan 6 '15 a...
What are naming conventions for MongoDB?
...ural: more obvious to label a collection of something as the plural, e.g. "files" rather than "file"
>No word separators: Avoids issues where different people (incorrectly) separate words (username <-> user_name, first_name <->
firstname). This one is up for debate according to a ...
add created_at and updated_at fields to mongoose schemas
...our schema, the type assigned is Date.
You can also specify the timestamp fileds' names:
timestamps: { createdAt: 'created_at', updatedAt: 'updated_at' }
Note: If you are working on a big application with critical data you should reconsider updating your documents. I would advise you to work ...
Why is this program erroneously rejected by three C++ compilers?
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In the standard, §2.1/1 specifies:
Physical source file characters are mapped, in an implementation-defined manner, to the basic source character set (introducing new-line characters for end-of-line indicators) if necessary.
Your compiler doesn't support that format (aka ca...
How to get a list of file names in different lines
I want to get a list of all the files in a directory, like with ls , so that each filename will be on a seperate line, without the extra details supplied by ls -l . I looked at ls --help and didn't find a solution. I tried doing
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Is it good practice to make the constructor throw an exception? [duplicate]
...ecked advice applies equally to both cases.
2 - For example, the existing FileInputStream constructors will throw FileNotFoundException if you try to open a file that does not exist. Assuming that it is reasonable for FileNotFoundException to be a checked exception3, then the constructor is the mo...