[英]TypeScript compiler error while finding absolute paths mentioned in `tsconfig.json`
[英]Typescript compiler not finding absolute paths when including files on tsconfig.json
我在 JS 中导入模块时尝试使用绝对路径,不幸的是tsc
无法正确解析路径返回错误:
模块名称“test2”未解析。
我有以下文件结构
project
│
└───tsconfig.json
└───js
│ └───another
│ │ └───child
│ │ │ test1.js
│ │
│ └───some
│ │ test2.js
这是test1.js
代码:
import { sayHi } from "test2";
sayHi("John");
这是test2.js
代码:
function sayHi(user) {
alert(`Hello, ${user}!`);
}
export { sayHi };
这是我的tsconfig.json
:
{
"compilerOptions": {
"noEmit": true,
"allowJs": true
},
"include": [
"js/**/*"
],
"exclude": []
}
当我运行tsc --traceResolution
时通过 CLI 命令,我得到以下信息:
╰─ tsc --traceResolution
======== Resolving module 'test2' from '/Users/Sites/LocalTests/js/another/child/test1.js'. ========
Module resolution kind is not specified, using 'NodeJs'.
Loading module 'test2' from 'node_modules' folder, target file type 'TypeScript'.
Directory '/Users/Sites/LocalTests/js/another/child/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/js/another/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/js/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/node_modules' does not exist, skipping all lookups in it.
Directory '/node_modules' does not exist, skipping all lookups in it.
Loading module 'test2' from 'node_modules' folder, target file type 'JavaScript'.
Directory '/Users/Sites/LocalTests/js/another/child/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/js/another/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/js/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/LocalTests/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/Sites/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/node_modules' does not exist, skipping all lookups in it.
Directory '/node_modules' does not exist, skipping all lookups in it.
======== Module name 'test2' was not resolved. ========
我如何设置它,以便它不仅在目录中搜索,而且在同级目录中搜索。 查看返回的跟踪,它似乎从未查看/some
目录,因此从未找到test2.js
。
查看其他帖子,似乎我可以在路径中添加/some
的paths:
tsconfig.json
的部分,但这意味着我必须手动添加每个路径,这没有意义,因为我计划使用多个目录随着这个项目的扩展。
另外,如果您想知道,我计划在 VScode 上使用这个tsconfig.json
文件来查找绝对路径并允许其“转到定义”功能正常工作。
这不应该工作。 当您导入"test2"
时,TypeScript 编译器无法知道在哪里可以找到您的文件。
此外, "test2"
是文件名,而不是绝对路径。 要使其成为绝对路径,它需要从硬盘驱动器的根目录开始的路径,这显然是不好的做法,因为它会使您的代码具体取决于文件在您的机器上的存储位置。
TypeScript 编译器查找导入的方式是:
node_modules
中搜索node_modules
中搜索所以你需要你的文件有一个相对路径,或者你需要它是一个npm
模块。
一个可能对您有所帮助的功能是路径映射,它允许您为 TypeScript 定义要查找的自定义路径,您可以在这种情况下使用它。
例如:
{
"compilerOptions": {
"baseUrl": ".",
"paths": {
"test2": ["some/test2.js"], // This mapping is relative to "baseUrl"
"some/*": ["some/*"] // You could use this to then import "some/test2"
}
}
}
您必须将其添加到您的 tsconfig.json
{
"compilerOptions": {
"baseUrl": "./",
"paths": {
"src/*": [
"./src/*"
],
}
}
}
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