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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
...clear as other documents, so here is my answer.
The implementation of hitTest:withEvent: in UIResponder does the following:
It calls pointInside:withEvent: of self
If the return is NO, hitTest:withEvent: returns nil. the end of the story.
If the return is YES, it sends hitTest:withEvent: message...
Code Golf: Collatz Conjecture
..., eax
push eax
push msg
.loop:
mov [esp+0x04], ebx
call printf
test ebx, 0x01
jz .even
.odd:
lea ebx, [1+ebx*2+ebx]
jmp .loop
.even:
shr ebx, 1
cmp ebx, 1
jne .loop
push ebx
push end
call printf
add esp, 16
xor eax, eax
ret
.usage:
mov ebx, [esp+0x08]
pu...
Why are static variables considered evil?
... variables represent global state. That's hard to reason about and hard to test: if I create a new instance of an object, I can reason about its new state within tests. If I use code which is using static variables, it could be in any state - and anything could be modifying it.
I could go on for qu...
MediaHelper 媒体助手扩展：从媒体文件提取元数据和专辑封面 · App Inventor 2 中文网
...e.ullisroboterseite.ursai2mediahelper.aix
.aia示例文件：
MediaHelperTest.aia
版本历史
版本
日期
修改内容
1.0
2021-07-06
初始版本
1.1
2024-09-04
Android 14 适配
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jQuery Event Keypress: Which key was pressed?
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@Tim: Alas, I just tested this with Firefox using api.jquery.com/keypress : when I press <Tab>, e.which isn't set (remains 0), but e.keyCode is (9). See stackoverflow.com/questions/4793233/… why this matters.
– Mar...
Statistics: combinations in Python
...
return int( reduce(mul, (Fraction(n-i, i+1) for i in range(k)), 1) )
Test - printing Pascal's triangle:
>>> for n in range(17):
... print ' '.join('%5d'%nCk(n,k) for k in range(n+1)).center(100)
...
1 ...
Why is JSHINT complaining that this is a strict violation?
..."use strict";
// ---> strict violation
function something() {
this.test = "";
}
// ---> just fine (note the capital S in Something)
function Something() {
this.test = "";
}
share
|
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How long do browsers cache HTTP 301s?
I am debugging a problem with a HTTP 301 Permanent Redirect. After a quick test, it seems that Safari clears its cache of 301s when it is restarted, but Firefox does not.
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case-insensitive list sorting, without lowercasing the result?
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Case-insensitive sort, sorting the string in place, in Python 2 OR 3 (tested in Python 2.7.17 and Python 3.6.9):
>>> x = ["aa", "A", "bb", "B", "cc", "C"]
>>> x.sort()
>>> x
['A', 'B', 'C', 'aa', 'bb', 'cc']
>>> x.sort(key=str.lower) # <===== the...
How do you declare an interface in C++?
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As far I could test, it is very important to add the virtual destructor. I'm using objects created with new and destroyed with delete.
If you do not add the virtual destructor in the interface, then the destructor of the inherited class is...