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How to allow only one radio button to be checked?

This is a part my django template, what it supposed to do is to print out several radio buttons, corresponding to the answers assigned to the buttons. But I don't know why I can check multiple radio buttons, which messed me up. It is supposed to only let me check on one radio button and I had that...
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Stripping everything but alphanumeric chars from a string in Python

... I just timed some functions out of curiosity. In these tests I'm removing non-alphanumeric characters from the string string.printable (part of the built-in string module). The use of compiled '[\W_]+' and pattern.sub('', str) was found to be fastest. $ python -m ...
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Detect iPad users using jQuery?

...){ return navigator.platform.match(/i(Phone|Pod))/i) } Notes While it works, you should generally avoid performing browser-specific detection as it can often be unreliable (and can be spoofed). It's preferred to use actual feature-detection in most cases, which can be done through a library ...
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How to configure postgresql for the first time?

... postgresql-9.1 on Xubuntu 12.04.1 LTS. Connect to the default database with user postgres: sudo -u postgres psql template1 Set the password for user postgres, then exit psql (Ctrl-D): ALTER USER postgres with encrypted password 'xxxxxxx'; Edit the pg_hba.conf file: sudo vim /etc/pos...
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How do I measure request and response times at once using cURL?

...iant blog post... https://blog.josephscott.org/2011/10/14/timing-details-with-curl/ cURL supports formatted output for the details of the request (see the cURL manpage for details, under -w, –write-out <format>). For our purposes we’ll focus just on the timing details that are provided. ...
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What is the difference between a shim and a polyfill?

... performs interception of an API call and provides a layer of abstraction. It isn't necessarily restricted to a web application or HTML5/CSS3. A polyfill is a type of shim that retrofits legacy browsers with modern HTML5/CSS3 features usually using Javascript or Flash. Answering your specific ques...
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Check if multiple strings exist in another string

... You can use any: a_string = "A string is more than its parts!" matches = ["more", "wholesome", "milk"] if any(x in a_string for x in matches): Similarly to check if all the strings from the list are found, use all instead of any. ...
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CursorLoader usage without ContentProvider

...rsor; import android.support.v4.content.AsyncTaskLoader; /** * Used to write apps that run on platforms prior to Android 3.0. When running * on Android 3.0 or above, this implementation is still used; it does not try * to switch to the framework's implementation. See the framework SDK * documen...
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Set Locale programmatically

My app supports 3 (soon 4) languages. Since several locales are quite similar I'd like to give the user the option to change locale in my application, for instance an Italian person might prefer Spanish over English. ...
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Best way to pretty print a hash

I have a large hash with nested arrays and hashes. I would like to simply print it out so it 'readable' to the user. 12 An...