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What are the differences between node.js and node?

...js. nodejs is what you want, however it is arguably better to have the command be called node for compatibility with scripts that use #!/usr/bin/env node. You can either just create a symlink in your path: sudo ln -s `which nodejs` /usr/local/bin/node Or you could install nvm and then use it to ins...
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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 much does it cost to develop an iPhone application? [closed]

... I'm one of the developers for Twitterrific and to be honest, I can't tell you how many hours have gone into the product. I can tell you everyone who upvoted the estimate of 160 hours for development and 40 hours for design is fricken' high. (I'd use another phrase, bu...
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Sass and combined child selector

I've just discovered Sass, and I've been so excited about it. 2 Answers 2 ...
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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', ...
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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 ...
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What is __future__ in Python used for and how/when to use it, and how it works

__future__ frequently appears in Python modules. I do not understand what __future__ is for and how/when to use it even after reading the Python's __future__ doc . ...
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Why is extending native objects a bad practice?

... get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object? ...
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List of Big-O for PHP functions

...ght it'd be good idea to have it for reference somewhere. I've gone though and either via benchmark or code-skimming to characterize the array_* functions. I've tried to put the more interesting Big-O near the top. This list is not complete. Note: All the Big-O where calculated assuming a hash look...
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?

...ge-processing problems in Haskell. I'm working with both bitonal (bitmap) and color images with millions of pixels. I have a number of questions: ...