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Detect whether there is an Internet connection available on Android [duplicate]
...ontimeout if somebody (unnecessarily) try call this function before making http call! :-)
– Vikas
Aug 4 '11 at 6:19
137
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Making an array of integers in iOS
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58
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Allowed characters in filename [closed]
...hould start with the Wikipedia Filename page. It has a decent-sized table (Comparison of filename limitations), listing the reserved characters for quite a lot of file systems.
It also has a plethora of other information about each file system, including reserved file names such as CON under MS-DOS...
App Inventor 2 动态图表教程 - ECharts与Chart组件实现实时曲线图 · App Inventor 2 中文网
...线
方案二：ECharts + WebView
HTML文件（echarts_dynamic.html）
App Inventor积木块
多条折线（ECharts）
实战案例：温度监测折线图
功能需求
积木块代码
常见问题
Q1: Chart组件数据多...
Are there any standard exit status codes in Linux?
...istd.h>
#include <signal.h>
int main() {
int status;
pid_t child = fork();
if (child <= 0)
exit(42);
waitpid(child, &status, 0);
if (WIFEXITED(status))
printf("first child exited with %u\n", WEXITSTATUS(status));
/* prints: "first child exite...
Disable submit button when form invalid with AngularJS
... +1 Coincidentally, I was just reading this great post of yours: benlesh.com/2012/11/angular-js-form-validation.html
– Ben
May 15 '14 at 17:48
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Readonly Properties in Objective-C?
...
In the implementation .m file:
// inside one of my init methods
self->_foo = @"someString"; // Notice the underscore prefix of var name.
That’s it, that’s all you need. No muss, no fuss.
Details
As of Xcode 4.4 and LLVM Compiler 4.0 (New Features in Xcode 4.4), you need not mess with th...
Adding days to a date in Python
...to do:
import datetime
Then you'll have, using datetime.timedelta:
date_1 = datetime.datetime.strptime(start_date, "%m/%d/%y")
end_date = date_1 + datetime.timedelta(days=10)
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Does height and width not apply to span?
...level element, then it will accept your dimension directives.
span.product__specfield_8_arrow
{
display: inline-block; /* or block */
}
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fo...
Haskell composition (.) vs F#'s pipe forward operator (|>)
...>. On the other hand, some F# guys use >> to a ridiculous degree: http://blogs.msdn.com/b/ashleyf/archive/2011/04/21/programming-is-pointless.aspx
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