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How do I check that multiple keys are in a dict in a single pass?
... +1, I like this better than Greg's answer because it's more concise AND faster (no building of irrelevant temporary list, AND full exploitation of short-circuiting).
– Alex Martelli
Aug 17 '09 at 2:34
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How can I handle the warning of file_get_contents() function in PHP?
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Step 1: check the return code: if($content === FALSE) { // handle error here... }
Step 2: suppress the warning by putting an error control operator (i.e. @) in front of the call to file_get_contents():
$content = @file_get_contents($site);
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Is it possible to implement a Python for range loop without an iterator variable?
...range(10): pass
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>>> _
9
>>> 1+2
3
>>> _
9
And according to Python grammar, it is an acceptable variable name:
identifier ::= (letter|"_") (letter | digit | "_")*
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What's the difference between assignment operator and copy constructor?
I don't understand the difference between assignment constructor and copy constructor in C++. It is like this:
8 Answers
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How to automatically remove trailing whitespace in Visual Studio 2008?
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CodeMaid is a very popular Visual Studio extension and does this automatically along with other useful cleanups.
Download: https://github.com/codecadwallader/codemaid/releases/tag/v0.4.3
Modern Download: https://marketplace.visualstudio.com/items?itemName=SteveCadwallader.C...
How to prevent going back to the previous activity?
..., if you have HomeActivity -> IntermediateActivity -> FinalActivity, and you call finish() in the IntermediateActivity immediately after starting the FinalActivity you'll see the HomeActivity for a brief moment.
– David Murdoch
Dec 17 '15 at 18:08
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Best timestamp format for CSV/Excel?
...ile. I need to write timestamps that are accurate at least to the second, and preferably to the millisecond. What's the best format for timestamps in a CSV file such that they can be parsed accurately and unambiguously by Excel with minimal user intervention?
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Maximum and Minimum values for ints
I am looking for minimum and maximum values for integers in python. For eg., in Java, we have Integer.MIN_VALUE and Integer.MAX_VALUE . Is there something like this in python?
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How do I dynamically assign properties to an object in TypeScript?
... string]: any} = {};
LooseObject can accept fields with any string as key and any type as value.
obj.prop = "value";
obj.prop2 = 88;
The real elegance of this solution is that you can include typesafe fields in the interface.
interface MyType {
typesafeProp1?: number,
requiredProp1: string...
How to drop all user tables?
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This worked very well and it doesn't require that I have authority on the Oracle server to delete and re-add my user. Bravo. Great answer.
– djangofan
May 11 '11 at 22:43
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