我在我的错误记录代码中有以下
javascript,它定义了
certain browsers where it doesn’t exist的console.log(除非调试工具是打开的,IE没有/没有定义它).
if (typeof console == "undefined") { window.console = { log: function (msg) { } }; }
尝试将js升级到Typescript时的问题是window.console被定义为Console接口类型,因为我没有指定它(显然)不能编译.
interface Console { info(message?: any,...optionalParams: any[]): void; profile(reportName?: string): void; assert(test?: boolean,message?: string,...optionalParams: any[]): void; msIsIndependentlyComposed(element: Element): boolean; clear(): void; dir(value?: any,...optionalParams: any[]): void; warn(message?: any,...optionalParams: any[]): void; error(message?: any,...optionalParams: any[]): void; log(message?: any,...optionalParams: any[]): void; profileEnd(): void; }
怎么能告诉它忽略这个界面,让我重新定义window.console.
我的最大努力猜测不起作用
window.console = { log: function (msg) { } } : any;
解决方法
更简单的解决方案是使用类型断言:
window.console = <any>{ log: function (msg) { } };
甚至使用lambda:
window.console = <any>{ log: () => { } };