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parseInt(null, 24) === 23… wait, what?
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240
It's converting null to the string "null" and trying to convert it. For radixes 0 through 23, th...
Bash script processing limited number of commands in parallel
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Augustin
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answered Oct 23 '13 at 13:35
devnulldevnull
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What is the performance cost of having a virtual method in a C++ class?
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104
I ran some timings on a 3ghz in-order PowerPC processor. On that architecture, a virtual functi...
return query based on date
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440
You probably want to make a range query, for example, all items created after a given date:
db....
How do you get the footer to stay at the bottom of a Web page?
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203
To get a sticky footer:
Have a <div> with class="wrapper" for your content.
Right befor...
How to capitalize the first character of each word in a string
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740
WordUtils.capitalize(str) (from apache commons-text)
(Note: if you need "fOO BAr" to become "Fo...
Plot a bar using matplotlib using a dictionary
...ort matplotlib.pyplot as plt
D = {u'Label1':26, u'Label2': 17, u'Label3':30}
plt.bar(range(len(D)), list(D.values()), align='center')
plt.xticks(range(len(D)), list(D.keys()))
# # for python 2.x:
# plt.bar(range(len(D)), D.values(), align='center') # python 2.x
# plt.xticks(range(len(D)), D.keys(...
Display open transactions in MySQL
...a connection breaks
From the MySQL docs: http://dev.mysql.com/doc/refman/5.0/en/mysql-tips.html
4.5.1.6.3. Disabling mysql Auto-Reconnect
If the mysql client loses its connection to the server while sending a statement, it immediately and automatically tries to reconnect once to the server ...
chart.js load totally new data
...eight
var x = canvas.width/2;
var y = canvas.height/2;
ctx.font = '10pt Verdana';
ctx.textAlign = 'center';
ctx.fillText('This text is centered on the canvas', x, y);
};
share
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improve ...
switch() statement usage
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120
Well, timing to the rescue again. It seems switch is generally faster than if statements.
So tha...