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Implicit type conversion rules in C++ operators
...your expressions the int is promoted to a float before the operation is performed. The result of the operation is a float.
int + float => float + float = float
int * float => float * float = float
float * int => float * float = float
int / float => float / float = float
float / int ...
Allow CORS REST request to a Express/Node.js application on Heroku
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
Are there legitimate uses for JavaScript's “with” statement?
...
I have been using the with statement as a simple form of scoped import. Let's say you have a markup builder of some sort. Rather than writing:
markupbuilder.div(
markupbuilder.p('Hi! I am a paragraph!',
markupbuilder.span('I am a span inside a paragraph')
)
)
You...
Why both no-cache and no-store should be used in HTTP response?
... directive and is intended to prevent storage of the representation in any form of cache whatsoever.
I say whatsoever, but note this in the RFC 2616 HTTP spec:
History buffers MAY store such responses as part of their normal operation
But this is omitted from the newer RFC 7234 HTTP spec in p...
Appending an element to the end of a list in Scala
...iar use a Vector if you want immutability and efficient append. See the performance characteristics section in scala-lang.org/docu/files/collections-api/collections.html
– Arjan Blokzijl
Oct 17 '11 at 14:12
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Has anyone ever got a remote JMX JConsole to work?
...s port can be found also the lsof -i gives hints what port has been opened form the java process.
NOTE: This port always changes when java process is started.
netstat -lp | grep <process-id>
tcp 0 0 *:<jmx-remote-port> *:* LISTEN 24321/java
tcp 0 0...
Determine the type of an object?
... (which you shouldn't be doing to begin with), isinstance is the preferred form anyhow, so neither == or is need be used.
– Mike Graham
Feb 8 '10 at 22:50
23
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What does curly brackets in the `var { … } = …` statements do?
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What you're looking at is a destructuring assignment. It's a form of pattern matching like in Haskell.
Using destructuring assignment you can extract values from objects and arrays and assign them to newly declared variables using the object and array literal syntax. This makes code m...
Are global variables in PHP considered bad practice? If so, why?
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Can you not use a callback of the form array ($obj, 'callbackMethod') in calls to preg_replace_callback()? (I know, I've fallen prey to this OOP pitfall...)
– grossvogel
Jul 1 '10 at 16:22
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How to perform OR condition in django queryset?
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Is it better to use this type of query or perform two separate queries?
– MHB
Mar 16 at 15:06
...