javascript – 在Angular2应用程序中使用element-resize-detector库

我试图在Angular2应用程序中使用元素调整大小检测器库(https://github.com/wnr/element-resize-detector).

根据我有限的JS模块知识,该库似乎采用Commonjs格式.经过多次尝试,我创建了以下定义文件(* .d.ts)：

declare module ResizeDetector {
  function ResizeDetector(options: any): ResizeDetector.Erd;

  interface Erd {
    listenTo(element: any, resizeCallback: any): void;
    uninstall(element: any): void;
  }
}
export = ResizeDetector;

然后我在我的TypeScript代码中使用以下import语句：

import * as ResizeDetector from 'element-resize-detector';

运行我的应用程序并使用console.log(‘ResizeDetector’,ResizeDetector)时,将记录以下输出：

ResizeDetector function (options) {
    options = options || {};

    //idHandler is currently not an option to the listenTo function, so it should not be added to globalOptions.
    var idHandler;

    if (options.…

这告诉我库已成功加载并且它按预期返回一个函数.

我的问题是我现在如何开始在TypeScript中使用库？当我尝试这样的事情：

private static resizeDetector = ResizeDetector({ strategy: 'scroll' });

我得到以下转换错误：

error TS2349: Cannot invoke an expression whose type lacks a call signature.

解决方法:

元件调整大小-detector.d.ts

declare function elementResizeDetectorMaker(options?: elementResizeDetectorMaker.ErdmOptions): elementResizeDetectorMaker.Erd;

declare namespace elementResizeDetectorMaker {
    interface ErdmOptions {
        strategy?: 'scroll' | 'object';
    }

    interface Erd {
        listenTo(element: HTMLElement, callback: (elem: HTMLElement) => void);
        removeListener(element: HTMLElement, callback: (elem: HTMLElement) => void);
        removeAllListeners(element: HTMLElement);
        uninstall(element: HTMLElement);
    }
}

export = elementResizeDetectorMaker;

消费者

let resizeDetector = elementResizeDetectorMaker({ strategy: 'scroll'});
resizeDetector.listenTo(document.getElementById('abc'), (elem: HTMLElement) => {
    console.log(elem.offsetWidth, elem.offsetHeight);
})