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What is the difference between user and kernel modes in operating systems?
...or reference memory. Code
running in user mode must delegate to
system APIs to access hardware or
memory. Due to the protection afforded
by this sort of isolation, crashes in
user mode are always recoverable. Most
of the code running on your computer
will execute in user mode.
Rea...
What are the differences between struct and class in C++?
...variables, state variables. etc. that are all used to present a consistent API to any code which wishes to use the class.
In effect, structs are about data, classes are about code.
However, you do need to understand that these are merely abstractions. It's perfectly possible to create structs tha...
Spring MVC @PathVariable with dot (.) is getting truncated
...all URI's to have a trailing slash - something that may not be apparent to API users / new developers. Because it's likely not all parameters may have a . in them, it may also create intermittent bugs
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Do you need text/javascript specified in your tags?
...avascript.
Amazon SDK documentation still has text/javascript.
Linkedin API documentation still has text/javascript.
Instagram is still using text/javascript.
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Positioning MKMapView to show multiple annotations at once
...Apple must have a way to do what we wanted without so much work.
Using the API doco quickly showed that I could use MKPolygon to do what was needed:
/* this simply adds a single pin and zooms in on it nicely */
- (void) zoomToAnnotation:(MapAnnotation*)annotation {
MKCoordinateSpan span = {0....
What is the difference between Collection and List in Java?
...
Java API is the best to answer this
Collection
The root interface in the collection
hierarchy. A collection represents a
group of objects, known as its
elements. Some collections allow
duplicate elements and others do...
throw Error('msg') vs throw new Error('msg')
...e,String all don't...Array, Object and Error do, but Event and all DOMxxxx-api constructors throw errors
– Elias Van Ootegem
Nov 8 '12 at 17:49
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Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
...rt the 'book__author' style format which is used everywhere else in the DB API.
Turns out there's a ticket for this feature, which is marked as Won't Fix.
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How do i find out what all symbols are exported from a shared object?
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I suppose there is no API to do this in runtime, right? I've found that on windows you have GetProcAddress() but you can't use it without actually executing the library (which is very dangerous if the parent app has too much access rights).
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What is a practical use for a closure in JavaScript?
...rating instrumentation (counting calls) from semantics (an error-reporting API). Other uses include:
Passing parameterised behaviour into an algorithm (classic higher-order programming):
function proximity_sort(arr, midpoint) {
arr.sort(function(a, b) { a -= midpoint; b -= midpoint; return a*...