[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 中導入模塊時嘗試使用絕對路徑,不幸的是tsc
無法正確解析路徑返回錯誤:
模塊名稱“test2”未解析。
我有以下文件結構
project
│
└───tsconfig.json
└───js
│ └───another
│ │ └───child
│ │ │ test1.js
│ │
│ └───some
│ │ test2.js
這是test1.js
代碼:
import { sayHi } from "test2";
sayHi("John");
這是test2.js
代碼:
function sayHi(user) {
alert(`Hello, ${user}!`);
}
export { sayHi };
這是我的tsconfig.json
:
{
"compilerOptions": {
"noEmit": true,
"allowJs": true
},
"include": [
"js/**/*"
],
"exclude": []
}
當我運行tsc --traceResolution
時通過 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. ========
我如何設置它,以便它不僅在目錄中搜索,而且在同級目錄中搜索。 查看返回的跟蹤,它似乎從未查看/some
目錄,因此從未找到test2.js
。
查看其他帖子,似乎我可以在路徑中添加/some
的paths:
tsconfig.json
的部分,但這意味着我必須手動添加每個路徑,這沒有意義,因為我計划使用多個目錄隨着這個項目的擴展。
另外,如果您想知道,我計划在 VScode 上使用這個tsconfig.json
文件來查找絕對路徑並允許其“轉到定義”功能正常工作。
這不應該工作。 當您導入"test2"
時,TypeScript 編譯器無法知道在哪里可以找到您的文件。
此外, "test2"
是文件名,而不是絕對路徑。 要使其成為絕對路徑,它需要從硬盤驅動器的根目錄開始的路徑,這顯然是不好的做法,因為它會使您的代碼具體取決於文件在您的機器上的存儲位置。
TypeScript 編譯器查找導入的方式是:
node_modules
中搜索node_modules
中搜索所以你需要你的文件有一個相對路徑,或者你需要它是一個npm
模塊。
一個可能對您有所幫助的功能是路徑映射,它允許您為 TypeScript 定義要查找的自定義路徑,您可以在這種情況下使用它。
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"
}
}
}
您必須將其添加到您的 tsconfig.json
{
"compilerOptions": {
"baseUrl": "./",
"paths": {
"src/*": [
"./src/*"
],
}
}
}
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