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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
... using #if, I can write this
DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000);
... instead of ...
#ifdef DEBUG_MODE
DoSomethingSlowWithTimeout(5000);
#else
DoSomethingSlowWithTimeout(1000);
#endif
Second, you're in a better position if you want to migrate from a #define to a global...
AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...for each item in dataList
// 模拟耗时处理
call wait 100
// 处理数据项
add item * 2 to ProcessedData
// 返回处理结果
return ProcessedData
// 处理完成后的回调
when AsyncProcedures1.ProcedureCompletedWithResult result
do
set Result...
How can I do time/hours arithmetic in Google Spreadsheet?
...gle spreadsheet are represented as days and parts of days. For example, 36:00:00 is the formatted representation of the number 1.5 (a day and a half).
Suppose you divide 36:00:00 by 3:00:00, as in your example. Google Spreadsheet performs the calculation 1.5 divided by 0.125, which is 12. The resul...
Bash variable scope
...
answered Sep 23 '08 at 22:29
pixelbeatpixelbeat
26.7k99 gold badges4747 silver badges5656 bronze badges
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Check if list is empty in C# [closed]
...
Felix Dombek
10.8k1515 gold badges6464 silver badges110110 bronze badges
answered Sep 18 '13 at 8:22
Tim SchmelterT...
Merge multiple lines (two blocks) in Vim
...
+100
You can certainly do all this with a single copy/paste (using block-mode selection), but I'm guessing that's not what you want.
If y...
What is InputStream & Output Stream? Why and when do we use them?
...
220
The goal of InputStream and OutputStream is to abstract different ways to input and output: whet...
Checking if a string is empty or null in Java [duplicate]
...
505
Correct way to check for null or empty or string containing only spaces is like this:
if(str !=...
Is there any kind of hash code function in JavaScript?
...
20 Answers
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Active
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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
...验。
包名：aryan.gupta.GesturesDetector
版本：1
发布日期：2020年11月28日
作者：AryanGupta
文件大小：10.5 KB
下载链接
扩展文件：
aryan.gupta.GesturesDetector.aix
demo:
DetectGesture.aia
功能概述
...