'this' 隐含类型为'any' [重复]

Question

interface ob {
  [key: string]: string
}

function DrawFillSVG(options: ob) {
  this.options = extend({}, this.options);
  extend(this.options, options);
  this._init();
}

错误提示：

 TS2683: 'this' implicitly has type 'any' because it does not have a type annotation

但我不清楚如何去做，任何帮助都会得到帮助

Answer 1

函数this类型注解如下：

function DrawFillSVG(this: whateverType, options: ob) {
  this.options = extend({}, this.options);
  extend(this.options, options);
  this._init();