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What does default(object); do in C#?
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190
For a reference-type, it returns null
For a value-type other than Nullable<T> it returns ...
How do you run a command for each line of a file?
...txt
If you have special chars and/or a lot of lines in file.txt.
xargs -0 chmod 755 < <(tr \\n \\0 <file.txt)
if your command need to be run exactly 1 time by entry:
xargs -0 -n 1 chmod 755 < <(tr \\n \\0 <file.txt)
This is not needed for this sample, as chmod accept multip...
add column to mysql table if it does not exist
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Note that INFORMATION_SCHEMA isn't supported in MySQL prior to 5.0. Nor are stored procedures supported prior to 5.0, so if you need to support MySQL 4.1, this solution isn't good.
One solution used by frameworks that use database migrations is to record in your database a revision numbe...
Comparing date part only without comparing time in JavaScript
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803
I'm still learning JavaScript, and the only way that I've found which works for me to compare t...
What does “atomic” mean in programming?
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edited Aug 18 '18 at 20:39
Basil Bourque
186k5757 gold badges571571 silver badges804804 bronze badges
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Assign width to half available screen width declaratively
... android:orientation="horizontal">
<Button android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="somebutton"/>
<TextView android:layout_width="0dp"
android:layout_height="wrap_conte...
Bootstrap 3 - Why is row class is wider than its container?
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edited Feb 4 '16 at 14:50
Seonghyeon Cho
10511 silver badge66 bronze badges
answered Sep 23 '13 at 21:...
How to increase space between dotted border dots
...*/
background-image: linear-gradient(to right, black 33%, rgba(255,255,255,0) 0%);
background-position: bottom;
background-size: 3px 1px;
background-repeat: repeat-x;
/*Vertical*/
background-image: linear-gradient(black 33%, rgba(255,255,255,0) 0%);
background-position: right;
background-size: 1px ...
How to get the first word of a sentence in PHP?
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$myvalue = 'Test me more';
$arr = explode(' ',trim($myvalue));
echo $arr[0]; // will print Test
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Emacs mode for Stack Overflow's markdown
...eas:
;; Integrate Emacs with Stack Exchange https://stackoverflow.com/a/10386560/789593
(add-to-list 'auto-mode-alist '("stack\\(exchange\\|overflow\\)\\.com\\.[a-z0-9]+\\.txt" . markdown-mode))
Alternatively, if as-external-alist is defined—if M-x describe-variable RET as-external-alist doesn...