大约有 40,000 项符合查询结果（耗时：0.0601秒） [XML]
What's wrong with overridable method calls in constructors?
...
On invoking overridable method from constructors
Simply put, this is wrong because it unnecessarily opens up possibilities to MANY bugs. When the @Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote from Effective ...
hash function for string
...
There are a number of existing hashtable implementations for C, from the C standard library hcreate/hdestroy/hsearch, to those in the APR and glib, which also provide prebuilt hash functions. I'd highly recommend using those rather than inventing your own hashtable or hash function; they'...
Adjust width and height of iframe to fit with content in it
...tuck with the DOM outside the iFrame (and couldn't pick up an event coming from inside the iFrame).
The solution came from discovering (via assistance from a colleague) that jQuery can be told what DOM to use. In this case, the DOM of the parent window.
As such, code such as this does what you nee...
Is errno thread-safe?
... identifier of an object. It might expand to a modifiable lvalue resulting from a function call (for example, *errno()).
Generally, errno is a macro which calls a function returning the address of the error number for the current thread, then dereferences it.
Here is what I have on Linux, in /usr...
Guid is all 0's (zeros)?
...
Lessons to learn from this:
1) Guid is a value type, not a reference type.
2) Calling the default constructor new S() on any value type always gives you back the all-zero form of that value type, whatever it is. It is logically the same as...
How do I shuffle an array in Swift?
...
let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbers = [1, 2, 3, 4]
numbers.shuffle()
// numbers == [3, 2, 1, 4]
Swift 4.0 and 4.1
These extensions add a sh...
How do I draw a shadow under a UIView?
...
Sadly, I think CGColor is out of reach from the storyboard :(
– Antzi
Aug 7 '14 at 15:01
1
...
What's the yield keyword in JavaScript?
...on of the algorithm. Each time you call next(), the generator code resumes from the statement following the yield.
share
|
improve this answer
|
follow
|
...
Detect Click into Iframe using JavaScript
...a click event.
By catching the mousedown you'd prevent the original click from getting to the iframe. If you could determine when the mouse button was about to be pressed you could try to get the invisible div out of the way so that the click would go through... but there is also no event that fire...
Deleting a file in VBA
...Object is a really useful tool and well worth getting friendly with. Apart from anything else, for text file writing it can actually sometimes be faster than the legacy alternative, which may surprise a few people. (In my experience at least, YMMV).
...