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How would I skip optional arguments in a function call?
...ify everything up until that last parameter. Generally if you want to mix-and-match, you give them default values of '' or null, and don't use them inside the function if they are that default value.
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How can I display an RTSP video stream in a web page?
...deo stream from an IP camera on a web page because you need wide internet bandwidth and a great video player that is compatible with the major browsers.
But fortunately there are some cloud based services that can do this job for us. One of the best is IPCamLive. This service can receive RTSP/H264 ...
Sass and combined child selector
I've just discovered Sass, and I've been so excited about it.
2 Answers
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How to link a Facebook app with an existing fan page
Now that Facebook has depreciated the landing pages for apps , how do I get my app to point to the Fan page for it's landing page?
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Batch script loop
I need to execute a command 100-200 times, and so far my research indicates that I would either have to copy/paste 100 copies of this command, OR use a for loop, but the for loop expects a list of items, hence I would need 200 files to operate on, or a list of 200 items, defeating the point.
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How to get different colored lines for different plots in a single figure?
...x)
plt.plot(x, 2 * x)
plt.plot(x, 3 * x)
plt.plot(x, 4 * x)
plt.show()
And, as you may already know, you can easily add a legend:
import matplotlib.pyplot as plt
import numpy as np
x = np.arange(10)
plt.plot(x, x)
plt.plot(x, 2 * x)
plt.plot(x, 3 * x)
plt.plot(x, 4 * x)
plt.legend(['y = x', ...
Difference between Repository and Service Layer?
...OOP Design Patterns, what is the difference between the Repository Pattern and a Service Layer?
5 Answers
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Best Practice: Access form elements by HTML id or name attribute?
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Give your form an id only, and your input a name only:
<form id="myform">
<input type="text" name="foo">
Then the most standards-compliant and least problematic way to access your input element is via:
document.getElementById("myform"...
How to print a debug log?
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A lesser known trick is that mod_php maps stderr to the Apache log. And, there is a stream for that, so file_put_contents('php://stderr', print_r($foo, TRUE)) will nicely dump the value of $foo into the Apache error log.
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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
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Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you're only storing 20 characters in each, err on the side of caution and just make it 50.
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