在index.ts中编写 String 到 Enum 的转换代码。 编译TypeScript tsc 1. 运行生成的 JavaScript nodeindex.js 1. 通过下方的序列图,可以清晰看到编译过程中的步骤: Node.jsCompilerDeveloperNode.jsCompilerDeveloper编写代码编译 TypeScript返回编译结果执行生成的 JavaScript 下面是一个简单的Makefile示例,以便简化编译和...
我们可以写一个方法来实现字符串向枚举的转换,如下所示: publicclassEnumConverter{publicstaticOrderStatusconvertStringToEnum(Stringstatus){try{returnOrderStatus.valueOf(status.toUpperCase());}catch(IllegalArgumentExceptione){System.out.println("无效的订单状态: "+status);returnnull;// 或可以抛出自定义异常}...
使用name()方法能够获得Enum的名称,name()方法是枚举类内置的方法。 三、使用toString()方法转换为String 像大多数的对象一样,默认都会有一个toString()方法,枚举也不例外 代码语言:javascript 代码运行次数:0 运行 AI代码解释 publicclassVehicleTest{publicstaticvoidmain(String[]args){System.out.println(Vehicle.B...
代码语言:javascript 复制 iex> string = "\u0065\u0301" iex> byte_size(string) 3 iex> String.length(string) 1 iex> String.codepoints(string) ["e", "́"] iex> String.graphemes(string) ["é"] 虽然上面的例子是由两个字符组成的,但用户认为它是一个。 图形符号也可以是被某些语言解释...
Interesting thing is that you can use enum as Type. This is what compile to Javscript: But if you add 'const' to enum: const enum Sizes { Small= "small", Medium= "medium", Large= "large" } It compiles to such smaller amount code, with only necessary information ...
Int–>Enum 1.可以强制转换将整型转换成枚举类型。 例如: Colorscolor=(Colors)2;//,那么color即为Colors.Blue 2.利用Enum的静态方法ToObject。 publicstaticObjectToObject(TypeenumType,intvalue) 例如: Colorscolor=(Colors)System.Enum.ToObject(typeof(Colors),2);//,那么color即为Colors.Blue ...
Adding Drag/Drop/Resizable Selection Rectangle to Image Editor Adding if condition as if button not clicked Adding Image to the DataTable Adding item to the static class of List Adding Items to enum ! Adding Line Break To DataTable Row Adding List<string> to ListView adding needed .dll to ...
4、Int-->Enum (1)可以强制转换将整型转换成枚举类型。 例如:Colors color = (Colors)2 ,那么color即为Colors.Blue (2)利用Enum的静态方法ToObject。 public static Object ToObject(Type enumType,int value) 例如:Colors color =(Colors)Enum.ToObject(typeof(Colors), 2),那么color即为Colors.Blue ...
"Simple" SQL to check for alpha or numeric charcters isn't working right "String or binary data would be truncated.\r\nThe statement has been terminated." "String or binary data would be truncated" and field specifications “Unable to enlist in the transaction” with Oracle linked server fro...
enum<T = number> This won't interact nicely with the current way string enums work, and I'm sure whichever method is chosen it would have to be backwards compatible. number being the default technically means this would be possible with the current implementation: enum<number> { SOMETHING...