Question

我正在将React项目从Babel迁移到TypeScript。似乎每当我import TypeScript某事对我大喊：

error TS2307: Cannot find module './some-file'.

这适用于我的项目中的两个外部模块（通过npm）或本地其他文件（尚未TypeScript生成）

有没有办法告诉TypeScript编译器将我导入的任何内容视为any，所以我不必为它们提供定义？

Answer 1

YES。

您可以自己声明模块，但在使用相对路径时可能难以管理模块名称：

declare module "ol/OpenLayers-combined" {
    var ol: any;
    export = ol;
}

以下是当前的TSC选项：

Version 1.8.7
Syntax:   tsc [options] [file ...]

Examples: tsc hello.ts
          tsc --out file.js file.ts
          tsc @args.txt

Options:
 --allowJs                           Allow javascript files to be compiled.
 --allowSyntheticDefaultImports      Allow default imports from modules with no default export. This does not affect code emit, just typechecking.
 --allowUnreachableCode              Do not report errors on unreachable code.
 --allowUnusedLabels                 Do not report errors on unused labels.
 -d, --declaration                   Generates corresponding '.d.ts' file.
 --experimentalDecorators            Enables experimental support for ES7 decorators.
 --forceConsistentCasingInFileNames  Disallow inconsistently-cased references to the same file.
 -h, --help                          Print this message.
 --init                              Initializes a TypeScript project and creates a tsconfig.json file.
 --jsx KIND                          Specify JSX code generation: 'preserve' or 'react'
 --mapRoot LOCATION                  Specifies the location where debugger should locate map files instead of generated locations.
 -m KIND, --module KIND              Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'
 --moduleResolution                  Specifies module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6).
 --newLine NEWLINE                   Specifies the end of line sequence to be used when emitting files: 'CRLF' (dos) or 'LF' (unix).
 --noEmit                            Do not emit outputs.
 --noEmitOnError                     Do not emit outputs if any errors were reported.
 --noFallthroughCasesInSwitch        Report errors for fallthrough cases in switch statement.
 --noImplicitAny                     Raise error on expressions and declarations with an implied 'any' type.
 --noImplicitReturns                 Report error when not all code paths in function return a value.
 --noImplicitUseStrict               Do not emit 'use strict' directives in module output.
 --outDir DIRECTORY                  Redirect output structure to the directory.
 --outFile FILE                      Concatenate and emit output to single file.
 --preserveConstEnums                Do not erase const enum declarations in generated code.
 --pretty KIND                       Stylize errors and messages using color and context. (experimental)
 -p DIRECTORY, --project DIRECTORY   Compile the project in the given directory.
 --reactNamespace                    Specifies the object invoked for createElement and __spread when targeting 'react' JSX emit
 --removeComments                    Do not emit comments to output.
 --rootDir LOCATION                  Specifies the root directory of input files. Use to control the output directory structure with --outDir.
 --sourceMap                         Generates corresponding '.map' file.
 --sourceRoot LOCATION               Specifies the location where debugger should locate TypeScript files instead of source locations.
 --suppressImplicitAnyIndexErrors    Suppress noImplicitAny errors for indexing objects lacking index signatures.
 -t VERSION, --target VERSION        Specify ECMAScript target version: 'ES3' (default), 'ES5', or 'ES2015' (experimental)
 -v, --version                       Print the compiler's version.
 -w, --watch                         Watch input files.
 @<file>                             Insert command line options and files from a file.

注意noEmitOnError选项。如果没有设置为true，那么即使无效的typescript也应该编译为javascript。

TypeScript中的每个导入都需要* .d.ts文件吗？

1 个答案: