嗨,我已成功使用OOP与AngularJs一段时间了(首先使用带有oop继承的angularjs开始 ),提供的方法允许您将类定义为角度服务,稍后您可以扩展或继承这样的类:
Application.factory('AbstractObject', [function () {
var AbstractObject = Class.extend({
virtualMethod: function() {
alert("Hello world");
},
abstractMethod: function() { // You may omit abstract definitions, but they make your interface more readable
throw new Error("Pure abstract call");
}
});
return AbstractObject; // You return class definition instead of it's instance
}]);
Application.factory('DerivedObject', ['AbstractObject', function (AbstractObject) {
var DerivedObject = AbstractObject.extend({
virtualMethod: function() { // Shows two alerts: `Hey!` and `Hello world`
alert("Hey!");
this._super();
},
abstractMethod: …Run Code Online (Sandbox Code Playgroud) I'm working on an application that uses angular as a client side framework, angular currently rocks and I'm really happy using it, though now I find that I use to much copy and paste code that I would like to organize into class hierarchy. For example dialogs share a common set of functionality, they need to be opened, closed, the code that provides typeahead functionality is also a first candidate to inherit from some parent BaseTypeaheadClass, though one thing …
根据这篇文章,打字稿2.0的打字系统已经改变,因此现在还不清楚如何附加自定义打字.我应该总是为此创建NPM包吗?
先感谢您!
我有一个GIT存储库,我想计算在一段时间内由一个人或一组人添加/更改了多少行代码.可以用git计算吗?
我有大约以下图片:
public class Foo
{
public Foo(Bar bar, String x, String y)
{
this.Bar = bar;
this.X = x;
this.Y = y;
}
[JsonIgnore]
public Bar Bar { get; private set; }
public String X { get; private set; }
public String Y { get; private set; }
}
public class Bar
{
public Bar(String z)
{
this.Z = z;
}
public String Z { get; private set; }
}
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我希望以某种方式在反序列化期间将类型为Bar的对象传递给Foo类型的构造函数,即:
var bar = new Bar("Hello world");
var x = …Run Code Online (Sandbox Code Playgroud) 我正在学习本教程:
http://www.bfilipek.com/2017/08/cpp17-details-filesystem.html
检查新的c ++ filesystem功能.但是我无法在我的机器上编译最小的例子:
#include <string>
#include <iostream>
#include <filesystem>
namespace fs = std::filesystem;
int main()
{
std::string path = "/";
for (auto & p : fs::directory_iterator(path))
std::cout << p << std::endl;
}
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我正在尝试编译它时使用XCode,CLion和命令行,但没有任何作用,我有版本9.3(9E145)与(看似正确的)项目设置,没有一个工作:
这是我CMakeLists.txt对CLion的文件:
cmake_minimum_required(VERSION 3.8)
project(FileSystem2)
set(CMAKE_CXX_STANDARD 17)
add_executable(FileSystem2 main.cpp)
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这是一个输出> gxx --version:
不过这是我从IDE获得的输出:
我做错了什么,我认为我的编译器应该支持c ++ 17?
编辑
根据Owen Morgan的回答,我已经安装了clang(实际的安装命令brew install llvm),但它现在抱怨没有string.h.有什么想法吗?
我有以下完美运行的代码:
bundles.Add
(
new ScriptBundle("~/bundles/scripts")
.Include
(
"~/Scripts/jquery-{version}.js"
,"~/Scripts/jquery-ui-{version}.js"
,"~/Scripts/jquery.unobtrusive*"
,"~/Scripts/jquery.validate*"
,"~/Scripts/fullcalendar-1.5.4/fullcalendar.js"
, "~/Scripts/DataTables-1.9.3/media/js/jquery.dataTables.js"
)
);
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但后来我想使用{version}通配符来使用它的所有漂亮功能:
bundles.Add
(
new ScriptBundle("~/bundles/scripts")
.Include
(
"~/Scripts/jquery-{version}.js"
,"~/Scripts/jquery-ui-{version}.js"
,"~/Scripts/jquery.unobtrusive*"
,"~/Scripts/jquery.validate*"
, "~/Scripts/fullcalendar-{version}/fullcalendar.js"
, "~/Scripts/DataTables-{version}/media/js/jquery.dataTables.js"
)
);
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和BANG,例外,它不起作用,我做错了什么?
编辑
异常信息: System.ArgumentException:
目录不存在.参数名称:directoryVirtualPath
堆:
[ArgumentException:目录不存在.Имяпараметра:directoryVirtualPath]
System.Web.Optimization.Bundle.Include(String [] virtualPaths)+40
Aerostar.BundleConfig.RegisterBundles(BundleCollection包)在c:\ Users\Denis\Documents\Visual Studio 2012\Projects\Aerostar\Aerostar中\ App_Start\BundleConfig.cs:21
Aerostar.MvcApplication.Application_Start()在c:\ Users\Denis\Documents\Visual Studio 2012\Projects\Aerostar\Aerostar\Global.asax.cs:24[HttpException(0x80004005):目录不存在.Имяпараметра:directoryVirtualPath]
System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext的上下文中,一个HttpApplication应用程序)9859725个
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr的appContext,HttpContext的上下文中,MethodInfo的[]处理程序)118
System.Web.HttpApplication.InitSpecial( HttpApplicationState状态,MethodInfo []处理程序,IntPtr appContext,HttpContext上下文)+172
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext,HttpContext context)+336
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)+296[HttpException(0x80004005):目录不存在.Имяпараметра:directoryVirtualPath]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context)+9873912 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context)+101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr,HttpContext context)+254
我正在尝试从外部位置导入".js"文件(即node_modules)我正在尝试使用commonjs模块模式执行此操作,但是导入不希望使用".js"文件类型,直到我添加" .d.ts"文件附近".js"文件位于同一文件夹中.
但问题是我不想用我的".d.ts"文件影响任何node_modules.我希望它位于另一个文件夹中,与node_modules分开,但是一旦我这样做,typescript编译器就会抛出一个错误:
我有以下文件夹结构:
|- DTS
| |- y.d.ts
|- main.ts
|- y.js
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y.js具有以下内容
module.export = function (x) {
console.log(x);
};
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ydts具有以下内容
export interface Y {
(x): any;
}
declare let y: Y;
export default y;
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main.ts具有以下内容
import * as y from './y'
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现在,当我尝试编译main.ts时:
tsc -m commonjs -t ES2015 main.ts
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我会收到一个错误:
x.ts(1,20): error TS2307: Cannot find module './y'.
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如何导入".js"文件并能够定义它的".d.ts"声明,同时让两个文件位于不同的位置.
这是示例项目的链接.一定要使用TypeScript …
count()数组函数的Big-O时间复杂度是多少?
例
$x = array(1,2,3);
echo count($x); // how many operation does it takes to count the elements
// of the array? is it 3, or is it 1
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