typescript - TS 0.9.5 中的 window.onerror 是不可能的。 :)

Question

这个 playground 链接曾经在 TS 0.9.5 之前工作，现在我无法弄清楚如何让它在我的生活中工作。

http://www.typescriptlang.org/Playground/#src=window.onerror=%20function%28eventOrMessage%3a%20any,%20source%3a%20string,%20fileno%3a%20number%29%7B%0A%09//%20place%20your%20body%20here%20%0A%7D ;

本质上:

window.onerror= function(eventOrMessage: any, source: string, fileno: number){
    // place your body here 
};

...返回错误:

Error 8 Cannot convert '(eventOrMessage: any, source: string, fileno: number) => void' to 'ErrorEventHandler': Call signatures of types '(eventOrMessage: any, source: string, fileno: number) => void' and 'ErrorEventHandler' are incompatible.

Answer 1

正如史蒂夫芬顿提到的。或者，您可以使用两个函数之间的通用签名:

window.onerror= function(eventOrMessage: any, source: string, fileno: number, colnumber?:number):any{
    // place your body here 
};