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Performance differences between debug and release builds
... compiler itself doesn't alter the emitted IL a great deal in the Release build. Notable is that it no longer emits the NOP opcodes that allow you to set a breakpoint on a curly brace. The big one is the optimizer that's built into the JIT compiler. I know it makes the following optimizations:
...
C# Events and Thread Safety
...the pointless delegate every single time the event is raised.
(Note that UI controls often have a large number of events, most of which are never subscribed to. Having to create a dummy subscriber to each event and then invoke it would likely be a significant performance hit.)
I did some cursory ...
Custom toast on Android: a simple example
...nt too, if someone can explain why, would be great! developer.android.com/guide/topics/ui/notifiers/toasts#java
– Nestor Perez
Oct 31 '19 at 14:50
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App Inventor 2 JSON数据解析教程 - 解析API返回的JSON数据 · App Inventor 2 中文网
...战案例：调用天气API获取天气数据
需求描述
UI设计
API说明
完整积木块伪代码
使用 get value at key path 简化
使用 list by walking key path 提取多个城市数据
常用字典积木块参考
创建字典
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App Inventor 2 网络微数据库后台搭建教程 - 自建TinyWebDB服务 · App Inventor 2 中文网
...它服务端不一定）。
写一个最小测试
界面放一个文本输入框、两个按钮（保存、读取）和一个标签：
when 按钮_保存.Click() {
网络微数据库1.StoreValue("留言", 文本输入框1.Text)
}
when 网络微数据库1.ValueStored() {
...
Should IBOutlets be strong or weak under ARC?
I am developing exclusively for iOS 5 using ARC. Should IBOutlet s to UIView s (and subclasses) be strong or weak ?
11...
how to split the ng-repeat data with three columns using bootstrap
...tall lodash:
npm install lodash-node
Create the filter:
var chunk = require('lodash-node/modern/array/chunk');
var memoize = require('lodash-node/modern/function/memoize');
angular.module('myModule', [])
.filter('chunk', function() {
return memoize(chunk);
});
And here's a sample with this ...
What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep
...tatic void Main(string[] args)
{
// Add the event handler for handling UI thread exceptions to the event.
Application.ThreadException += new
ThreadExceptionEventHandler(ErrorHandlerForm.Form1_UIThreadException);
// Set the unhandled exception mode to force all Windows Forms
...
When do you use map vs flatMap in RxJava?
...t the function it applies returns an observable itself, so it's perfectly suited to map over asynchronous operations.
In the practical sense, the function Map applies just makes a transformation over the chained response (not returning an Observable); while the function FlatMap applies returns an ...
enum.values() - is an order of returned enums deterministic
...
@Fletch, sorry, I don't quite follow you. To me this sounds like you are trying to use enum for some purpose it was not intended for.
– Péter Török
Aug 13 '12 at 14:50
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