typescript 如何在打字稿中声明和处理浮点类型？
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How to declare and deal with float type in typescript?
提问by Tamer Hussien
I have angular App which interact with backend required to send jsonlike this:
我有与后端交互的角度应用程序，需要json像这样发送：
{"prop": 654646f}
I have two problems, I can't find the type float in typescriptalso if the value have quoted in default JSONit isn't accepted. So how to remove quotes from certain property value in JSON?
我有两个问题，typescript如果值默认引用JSON它不被接受，我也找不到类型 float 。那么如何从 中的某些属性值中删除引号JSON？
回答by ochs.tobi
There is no floattype in Typescript. All numbers are from the type number.
floatTypescript 中没有类型。所有数字都来自类型number。
If you want to cast an stringas number you can simply do it with the +operator. Example:
如果你想投射一个string数字，你可以简单地用+操作符来完成。例子：
myNumberString: string = "25";
myNumber: number = +myNumberString;
回答by Yohan Dahmani
A cleaner look is to do
更干净的外观是要做的
myNumber: number = Number(myNumberString);
