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Flexbox Not Centering Vertically in IE
...Lipsum content that is centered on the page. The page works fine in Chrome and Firefox. If I reduce the size of the window, the content fills the window until it can't and then adds a scroll bar and fills content off screen, toward the bottom.
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Getting distance between two points based on latitude/longitude
I tried implementing this formula: http://andrew.hedges.name/experiments/haversine/
The aplet does good for the two points I am testing:
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CustomErrors mode=“Off”
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This has been driving me insane for the past few days and couldn't get around it but have finally figured it out:
In my machine.config file I had an entry under <system.web>:
<deployment retail="true" />
This seems to override any other customError settings that ...
How to get JSON from webpage into Python script
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Get data from the URL and then call json.loads e.g.
Python3 example:
import urllib.request, json
with urllib.request.urlopen("http://maps.googleapis.com/maps/api/geocode/json?address=google") as url:
data = json.loads(url.read().decode())
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When can I use a forward declaration?
...ssuming the following forward declaration.
class X;
Here's what you can and cannot do.
What you can do with an incomplete type:
Declare a member to be a pointer or a reference to the incomplete type:
class Foo {
X *p;
X &r;
};
Declare functions or methods which accept/return inco...
“f” after number
...compiler may not be smart enough to convert them to float at compile time, and would slow the execution down with four int->float conversions (that are among the slowest casts). Although in this case is almost unimportant, it's always better to specify correctly f if needed: in an expression a co...
Pythonic way to print list items
...List not working, you can just use the following which does the same thing and is still one line:
for p in myList: print p
For a solution that uses '\n'.join(), I prefer list comprehensions and generators over map() so I would probably use the following:
print '\n'.join(str(p) for p in myList)
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Bash: infinite sleep (infinite blocking)
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sleep infinity does exactly what it suggests and works without cat abuse.
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How to check if a line is blank using regex
...e character class.
* is zero-or-more repetition of.
In multiline mode, ^ and $ also match the beginning and end of the line.
References:
regular-expressions.info/Anchors, Character Classes, and Repetition.
A non-regex alternative:
You can also check if a given string line is "blank" (i.e. ...
How to detect idle time in JavaScript elegantly?
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Here is a simple script using JQuery that handles mousemove and keypress events.
If the time expires, the page reload.
<script type="text/javascript">
var idleTime = 0;
$(document).ready(function () {
//Increment the idle time counter every minute.
var ...