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Difference between malloc and calloc?
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calloc() gives you a zero-initialized buffer, while malloc() leaves the memory uninitialized.
For large allocations, most calloc implementations under mainstream OSes will get known-zeroed pages from the OS (e.g. via POSIX mm...
Best way to store a key=>value array in JavaScript?
...lue for a Map.
You can get the size of a Map easily while you have to manually keep track of size for an Object.
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Do subclasses inherit private fields?
... world, and it does so (in this case) unambiguously.
EDITED (removed a parallel quote from Bjarne Stroustrup which due to the differences between java and c++ probably only add to the confusion. I'll let my answer rest on the JLS :)
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How do I use CREATE OR REPLACE?
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There is no create or replace table in Oracle.
You must:
DROP TABLE foo;
CREATE TABLE foo (....);
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erb, haml or slim: which one do you suggest? And why? [closed]
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A lot cleaner!
As for the difference between HAML and SLIM - I never really worked with SLIM but I guess it is a matter of taste - take a look at both syntaxes and decide which looks better in you eyes. I don't think there is a definite winner between those two (HAML/SLIM).
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twig: IF with multiple conditions
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If I recall correctly Twig doesn't support || and && operators, but requires or and and to be used respectively. I'd also use parentheses to denote the two statements more clearly although this isn't technically a requirement...
Static Initialization Blocks
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The non-static block:
{
// Do Something...
}
Gets called every time an instance of the class is constructed. The static block only gets called once, when the class itself is initialized, no matter how many objects of that type you create.
Example:
public class Test {
s...
How to break out of a loop from inside a switch?
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To find bugs, program complexity analysis, security checks, or automatically derive any other source code behaviour without code execution, specifying the initial breaking condition(s) allows algorithms to determine useful invariants, thereby improving automatic source code analysis metrics.
Inf...
slashes in url variables
... if they treated underscores as spaces you would no longer be able to find foo_bar (likely a class of some kind) within the search results. Blah blah... In conclusion: Underscores are not bad for SEO if you understand how the search engine you're "optimising" for actually works.
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REST Complex/Composite/Nested Resources [closed]
...our specific case of the covers is slightly more complex in that a cover really does require a comic book, and visa versa.
However, if you consider an email message as a resource, and the from address as a child resource, you can obviously still reference the from address separately. For example, g...