使用TypeScript,是否有某种方法可以import
一个由webpack UMD(通用模块定义)包装的模块?例如:
npm install knockback
.js文件(node_modules/knockback/knockback.js
)的开头如下:
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(require("knockout"), require("backbone"), ....
else if(typeof define === 'function' && define.amd)
define(["knockout", "backbone", "underscore"], function webpackLoadOptionalExternalModuleAmd( ....
});
else if(typeof exports === 'object')
exports["kb"] = factory(require("knockout"), require("backbone"), require("underscore"), (function ....
else
root["kb"] = factory(root["ko"], root["Backbone"], root["_"], root["jQuery"]);
当我尝试将其导入.ts文件时,tsc会产生错误:
import * as k from 'knockback/knockback';
TS2307: Build: Cannot find module 'knockback/knockback'.
除了编辑knockback.js文件之外,还有什么我可以做的,说服tsc导入这个.js?我使用的是Typescript 1.8。
答案 0 :(得分:4)
当我尝试将其导入.ts文件时,tsc会产生错误:
您可以非常轻松地使用类型定义文件
档案knockback.d.ts
declare module 'knockback/knockback' {
var foo: any;
export = foo;
}
答案 1 :(得分:0)
仅供参考,对于那些最终试图通过Typescript使用knockback.js的人来说,DefinitelyTyped提供了一个预先存在的Error in .startAsciiWriting(x, filename, ...) :
x has unequal horizontal and vertical resolutions. Such data cannot be stored in arc-ascii format
文件。但是,现有的.d.ts不包含knockback.d.ts
,因此不能与外部模块一起使用。基于 basarat' 答案,我修改了.d.ts文件,如下所示:
1)将以下内容添加到最后:
export
2)从最后删除declare module "knockback" {
export = Knockback;
}
。
3)删除declare var kb: Knockback.Static
包装器并将interface Static extends Utils {
接口内的所有内容移动到命名空间范围。例如:
Static
interface Static extends Utils {
ViewModel;
CollectionObservable;
collectionObservable(model?: Backbone.Collection<Backbone.Model>, options?: CollectionOptions): CollectionObservable;
observable(
/** the model to observe (can be null) */
model: Backbone.Model,
/** the create options. String is a single attribute name, Array is an array of attribute names. */
options: IObservableOptions,
/** the viewModel */
vm?: ViewModel): KnockoutObservable<any>;
...
}
完成这些更改后,用法如下所示:
function collectionObservable(model?: Backbone.Collection<Backbone.Model>, options?: CollectionOptions): CollectionObservable;
function observable(
/** the model to observe (can be null) */
model: Backbone.Model,
/** the create options. String is a single attribute name, Array is an array of attribute names. */
options: IObservableOptions,
/** the viewModel */
vm?: ViewModel): KnockoutObservable<any>;
...