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How do I implement basic “Long Polling”?
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It's simpler than I initially thought.. Basically you have a page that does nothing, until the data you want to send is available (say, a new message arrives).
Here is a really basic example, which sends a simple string after 2-10 seconds. 1 in 3 ch...
What's a standard way to do a no-op in python?
...e those if statements, but for readability I find it helps to include them all, so that if you are looking through the code you can see what happens as a result of each option. How do I code the no-op? Currently, I'm doing it like this:
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How to identify whether a file is normal file or directory
...ases. Use os.path.islink() for symlinks for instance. Furthermore, these all return False if the file does not exist, so you'll probably want to check with os.path.exists() as well.
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How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites
...like "1 minutes". I posted a modified version of this answer that conditionally adds the "s": stackoverflow.com/a/23259289/373655
– rob
Apr 24 '14 at 3:32
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Xcode 4 - slow performance
I have an issue with Xcode 4 really responding very slowly to user interactions, e.g. editing code, scrolling areas etc. This particularly happens with larger scale projects with many controllers/view files etc.
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What is the “hasClass” function with plain JavaScript?
...ok at jQuery's source code on github or at the source for hasClass specifically in this source viewer.
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How to add a TextView to LinearLayout in Android
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Why would that change anything? All it does is cast sooner rather than later, which should have the same effect.
– yesennes
May 19 '16 at 13:06
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Can't Find Theme.AppCompat.Light for New Android ActionBar Support
...;Android. In the section library "Add" and choose "AppCompat"
That is all!
Note: if you are using "android:showAsAction" in menu item, you need to change prefix android as in the example http://developer.android.com/guide/topics/ui/actionbar.html
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Test if element is present using Selenium WebDriver?
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Good call djangofan! I successfully used this strategy by changing the driver timeouts' implicit wait to zero, then changing it back to its previous value.
– emery
May 27 '15 at 17:18
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How to test if a double is an integer
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I really love the simplicity of this solution. It's both easy to read and to implement.
– krispy
Feb 27 '14 at 21:03
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