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How do CSS triangles work?
...e Acts
As alex said, borders of equal width butt up against each other at 45 degree angles:
When you have no top border, it looks like this:
Then you give it a width of 0...
...and a height of 0...
...and finally, you make the two side borders transparent:
That results in a triangle....
Print current call stack from a method in Python code
...stack.py", line 10, in <module>
# f()
# File "so-stack.py", line 4, in f
# g()
# File "so-stack.py", line 7, in g
# for line in traceback.format_stack():
If you really only want to print the stack to stderr, you can use:
traceback.print_stack()
Or to print to stdout (useful if...
Adjusting the Xcode iPhone simulator scale and size [duplicate]
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edited Sep 4 at 21:31
Jean-François Fabre♦
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Android: Expand/collapse animation
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744
I see that this question became popular so I post my actual solution. The main advantage is tha...
Fix code indentation in Xcode
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224
Before Xcode 9 (for Xcode 9 see default shortcut below)
select text
right-click
there's a "R...
AngularJS - $anchorScroll smooth/duration
...breton/angular-smoothscroll
https://gist.github.com/justinmc/d72f38339e0c654437a2
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Fastest way to determine if an integer's square root is an integer
...t obvious answers. This includes negative numbers and looking at the last 4 bits. (I found looking at the last six didn't help.) I also answer yes for 0. (In reading the code below, note that my input is int64 x.)
if( x < 0 || (x&2) || ((x & 7) == 5) || ((x & 11) == 8) )
retu...
ASP.NET MVC 404 Error Handling [duplicate]
I've made the changes outlined at 404 Http error handler in Asp.Net MVC (RC 5) and I'm still getting the standard 404 error page. Do I need to change something in IIS?
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How to use UIScrollView in Storyboard
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149
I'm answering my own question because I just spent 2 hours to find the solution and StackOverfl...
MySQL Conditional Insert
..., try:
INSERT INTO x_table(instance, user, item)
SELECT 919191, 123, 456
FROM dual
WHERE NOT EXISTS (SELECT * FROM x_table
WHERE user = 123
AND item = 456)
In this, dual is a table with one row only (found originall...