【发布时间】:2019-01-12 06:40:38
【问题描述】:
我正在尝试将Phaser 与Brunch 和TypeScript 一起使用samme 的brunch-phaser2 骨架,但我遇到了TypeError:
$ git clone https://github.com/samme/brunch-phaser2.git --branch typescript
$ cd brunch-phaser2
$ npm install
$ npm run start
> a-phaser-game@0.0.1 start /home/sam/github/samme/brunch-phaser2
> brunch watch --server
13:49:11 - info: application started on http://localhost:3333/
13:49:12 - error: Compiling of app/initialize.ts failed. TypeError: Cannot read property 'length' of undefined
Stack trace was suppressed. Run with `LOGGY_STACKS=1` to see the trace.
13:49:12 - info: compiled 5 files into 2 files, copied 3 in 1.5 sec
当我向我的game 变量添加显式类型时,my Phaser experimention repo 中会出现一个稍微不同的TypeError:
$ git clone https://github.com/samestep/phaser-nonsense.git --branch type-error
$ cd phaser-nonsense
$ npm install
$ npm run start
> @ start /home/sam/github/samestep/phaser-nonsense
> brunch watch --server
13:56:42 - info: application started on http://localhost:3333/
13:56:42 - error: Compiling of app/initialize.ts failed. Error: Error 2503: Cannot find namespace 'Phaser'. (Line: 3, Col: 13)
Stack trace was suppressed. Run with `LOGGY_STACKS=1` to see the trace.
13:56:42 - info: compiled 2 files into vendor.js, copied index.html in 1.3 sec
但是在任何一种情况下,当我改变这个时:
const game: Phaser.Game = new Phaser.Game({});
到这里:
const game = new Phaser.Game({});
TypeError 消失了。
为什么这个显式类型声明会导致TypeError 发生,如何在不删除显式类型声明的情况下解决错误?
【问题讨论】:
标签: typescript types typeerror phaser-framework brunch