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Is returning null bad design? [closed]
...ationale behind not returning null is that you do not have to check for it and hence your code does not need to follow a different path based on the return value. You might want to check out the Null Object Pattern which provides more information on this.
For example, if I were to define a method ...
Read user input inside a loop
...;0
BTW, if you really are using cat this way, replace it with a redirect and things become even easier:
while read line; do
read -u 3 input
echo "$input"
done 3<&0 <notify-finished
Or, you can swap stdin and unit 3 in that version -- read the file with unit 3, and just leave s...
Abstract functions in Swift Language
...I think fatalError() is better for this one reason
– André Fratelli
Jul 5 '14 at 0:15
6
Also the...
How can I generate a list of files with their absolute path in Linux?
...he current directory:
find "$(pwd)" -name .htaccess
or if your shell expands $PWD to the current directory:
find "$PWD" -name .htaccess
find simply prepends the path it was given to a relative path to the file from that path.
Greg Hewgill also suggested using pwd -P if you want to resolve sy...
Unbalanced calls to begin/end appearance transitions for
...the real view controller, but you must have the tab bar controller present and dismiss.
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How do you automate Javascript minification for your Java web applications?
...
minify-maven and maven yui compressor didn't play nice with ES6 features for me as of the time of this comment
– DPM
Dec 5 '17 at 16:17
...
How do I skip an iteration of a `foreach` loop?
In Perl I can skip a foreach (or any loop) iteration with a next; command.
8 Answers
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What package naming convention do you use for personal/hobby projects in Java?
I'm already familiar with the standard Java package naming convention of using a domain name to create a unique package name (i.e. package com.stackoverflow.widgets ). However, I've never seen any recommendations for how to choose package names for personal projects. I assume because this is becaus...
What is the use of having destructor as private?
...en "friend"ed) responsible for counting the number of references to itself and delete it when the number hits zero. A private dtor would prevent anybody else from deleting it when there were still references to it.
For another instance, what if you have an object that has a manager (or itself) tha...
Colors with unix command “watch”?
Some commands that I use display colors, but when I use them with watch the colors disappears:
6 Answers
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