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What does Ruby have that Python doesn't, and vice versa?
...h are essentially syntactic sugar around a section of code; they are a way to create closures and pass them to another method which may or may not use the block. A block can be invoked later on through a yield statement.
For example, a simple definition of an each method on Array might be something...
Undo changes in entity framework entities
this might be a trivial question but: Since ADO.NET entity framework automatically tracks changes (in generated entities) and therefore keeps the original values, how can I rollback changes made to the entity objects?
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How to get the first element of an array?
...lue of a[0], which actually is the first item in the array. If you want it to show foo you should skip all undefined values but it wouldn't be the first item in the array.
– Michiel van der Blonk
Sep 6 '16 at 10:37
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How do you search an amazon s3 bucket?
...ket with thousands of files in it. How can I search the bucket? Is there a tool you can recommend?
21 Answers
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How can you profile a Python script?
Project Euler and other coding contests often have a maximum time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__ .
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How to sum up elements of a C++ vector?
...t are the good ways of finding the sum of all the elements in a std::vector ?
11 Answers
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Why is list initialization (using curly braces) better than the alternatives?
...t allow narrowing (§iso.8.5.4). That is:
An integer cannot be converted to another integer that cannot hold its value. For example, char
to int is allowed, but not int to char.
A floating-point value cannot be converted to another floating-point type that cannot hold its
value. For example, float...
How do you configure logging in Hibernate 4 to use SLF4J
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Look to https://github.com/jboss-logging/jboss-logging/blob/master/src/main/java/org/jboss/logging/LoggerProviders.java:
static final String LOGGING_PROVIDER_KEY = "org.jboss.logging.provider";
private static LoggerProvider find...
Git - How to close commit editor?
I'm new to git and learning from a PDF.
I just executed a command $ git commit and it opens a new editor. But I'm trying to close that new commit editor. How to do this? I'm using git on windows.
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Is there any way to call a function periodically in JavaScript?
Is there any way to call a function periodically in JavaScript?
9 Answers
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