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Are there legitimate uses for JavaScript's “with” statement?
...ck"
Declaring a closure in a loop is a common task where this can lead to errors:
for (var i=0; i<3; ++i)
{
var num = i;
setTimeout(function() { alert(num); }, 10);
}
Because the for loop does not introduce a new scope, the same num - with a value of 2 - will be shared by all three functi...
When to use in vs ref vs out
...ents (Community Additions)' section in the link mentioned by you. It is an error which is corrected in VS 2008 documentation.
– Bharat Ram V
Aug 12 '13 at 8:07
...
C++ Singleton design pattern
...ctions should generally
// be public as it results in better error messages
// due to the compilers behavior to check accessibility
// before deleted status
};
See this article about when to use a singleton: (not often)
Singleton: How should it be used
Se...
git diff between cloned and original remote repository
... Thank you for the HEAD..origin/master syntax! We've been getting errors with origin/HEAD not existing, and this solved it.
– Dan Bechard
Nov 6 '15 at 19:37
...
How should I read a file line-by-line in Python?
... memory.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by...
Cancellation token in Task constructor: why?
...count 2
Canceling task
Task: cancellation requested
Exception: One or more errors occurred.
InnerException: The operation was canceled.
Task.Status: Faulted
*********************************************************************
* Throw if cancellation requested, pass token to constructor
***********...
How to return an array from JNI to Java?
...rray(env, size);
if (result == NULL) {
return NULL; /* out of memory error thrown */
}
int i;
// fill a temp structure to use to populate the java int array
jint fill[size];
for (i = 0; i < size; i++) {
fill[i] = 0; // put whatever logic you want to populate the values here.
}
/...
mongoDB/mongoose: unique if not null
...t they instead be passed undefined. I was doing that and still getting the error (while using unique and sparse). I updated my schema with this answer, dropped my existing index, and it worked like a charm.
– Phil
Apr 4 '19 at 20:33
...
Comparing object properties in c# [closed]
...perties which throw exception in other case. Here is the criteria for this error: pi.GetIndexParameters().Length == 0. And the second criteria to resolve the problem stated by @RyanThomas is this: pi.GetUnderlyingType().IsSimpleType(). As you will see, IsSimpleType is and extension that not exist fo...
When to use generic methods and when to use wild-card?
...add(o); // correct
}
}
But the following will result in compile time error.
static <T> void fromArrayToCollection(T[] a, Collection<?> c) {
for (T o : a) {
c.add(o); // compile time error
}
}