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Which MySQL datatype to use for an IP address? [duplicate]
I want to get the IP address from $_SERVER['REMOTE_ADDR'] and some other $_SERVER variables, which datatype is the right one for this?
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Why doesn't print work in a lambda?
...ed print function if you are using the latest Python 2.x:
In [1324]: from __future__ import print_function
In [1325]: f = lambda x: print(x)
In [1326]: f("HI")
HI
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App Inventor 2 SemiCircleArc 扩展：高级自定义半圆进度条 · App Inventor 2 中文网
...：
when Screen1.Initialize() {
SemiCircleArc1.Initialize(垂直布局_进度)
SemiCircleArc1.ShowProgressText = true
SemiCircleArc1.LabelText = "加载中"
SemiCircleArc1.ProgressBarGradient(&HFF42A5F5, &HFF7E57C2)
SemiCircleArc1.BackgroundGradient(&HFFE0E0E0, &HFFF5F5F5)
SemiCircleArc...
Is there a cross-browser onload event when clicking the back button?
For all major browsers (except IE), the JavaScript onload event doesn’t fire when the page loads as a result of a back button operation — it only fires when the page is first loaded.
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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
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See __hash__. Specifically about the str type.
– metatoaster
Aug 25 '14 at 6:43
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What are all the escape characters?
I know some of the escape characters in Java, e.g.
4 Answers
4
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What is the difference between is_a and instanceof?
...ut PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_string (defaults to false) to allow comparisons of string class names instead:
class MyBaseClass {}
class MyExtendingClass extends MyBaseClass {}
// Original behavior, evaluates to false.
is_a(MyExtendingClass::class,...
New features in java 7
...OutputStream(dest))
{
// code
}
Underscores in numeric literals
int one_million = 1_000_000;
Strings in switch
String s = ...
switch(s) {
case "quux":
processQuux(s);
// fall-through
case "foo":
case "bar":
processFooOrBar(s);
break;
case "baz":
processBaz(s);
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How to handle WndProc messages in WPF?
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Actually, as far as I understand such a thing is indeed possible in WPF using HwndSource and HwndSourceHook. See this thread on MSDN as an example. (Relevant code included below)
// 'this' is a Window
HwndSource source = HwndSou...
Installing SciPy and NumPy using pip
...t requires both the SciPy and NumPy libraries.
While developing, I installed both using
8 Answers
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