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What is the difference between “screen” and “only screen” in media queries?

What is the difference between screen and only screen in media queries? 5 Answers ...
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How Python web frameworks, WSGI and CGI fit together

... How WSGI, CGI, and the frameworks are all connected? Apache listens on port 80. It gets an HTTP request. It parses the request to find a way to respond. Apache has a LOT of choices for responding. One way to respond is to use CGI to r...
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Simple regular expression for a decimal with a precision of 2

...t: \d+(\.\d{1,2})? Both assume that both have at least one digit before and one after the decimal place. To require that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form): ^\d+(\.\d{1,2})?$ To match numbers without a leading digit be...
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Formatting Decimal places in R

...number of decimal places are displayed. This is often done for consistency and standardisation purposes rather than being concerned with significant figures. Solution: The following code shows exactly two decimal places for the number x. format(round(x, 2), nsmall = 2) For example: format(roun...
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Difference between JSONObject and JSONArray

... When you are working with JSON data in Android, you would use JSONArray to parse JSON which starts with the array brackets. Arrays in JSON are used to organize a collection of related items (Which could be JSON objects). For example: [{"name":"item 1"},{"name": "...
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Hiding a password in a python script (insecure obfuscation only)

...onnection string. In this connection string I have to include the username and password for this connection. 21 Answers ...
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?

I've just arrived to Node.js and see that there are many libs to use with the MongoDB, the most popular seem to be these two: (mongoose and mongodb). Can I get pros and cons of those extensions? Are there better alternatives to these two? ...
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Checking Bash exit status of several commands efficiently

Is there something similar to pipefail for multiple commands, like a 'try' statement but within bash. I would like to do something like this: ...
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How to Unit test with different settings in Django?

.../#overriding-settings TestCase will have a self.settings context manager, and there will also be an @override_settings decorator that can be applied to either a test method or a whole TestCase subclass. These features did not exist yet in Django 1.3. If you want to change settings for all your te...
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Activity transition in Android

How can I define the transition between two activities for Android 1.5 and later? I would like an activity to fade in. 14 ...