import.meta.resolve(specifier)
版本历史
| 版本 | 变更 |
|---|---|
| v20.6.0, v18.19.0 | 不再落后于 |
| v20.6.0, v18.19.0 | 当目标 |
| v20.0.0, v18.19.0 | 此 API 现在同步返回字符串而不是 Promise。 |
| v16.2.0, v14.18.0 | 向 |
| v13.9.0, v12.16.2 | 新增于: v13.9.0, v12.16.2 |
\Stability: 1.2 - Release candidate
-
specifier<string> 相对于当前模块解析的模块说明符。\
specifier<string> The module specifier to resolve relative to the current module. -
返回:<string> 说明符将解析为的绝对 URL 字符串。
\Returns: <string> The absolute URL string that the specifier would resolve to.
import.meta.resolve 是一个模块相对解析函数,作用域为每个模块,返回 URL 字符串。
\import.meta.resolve is a module-relative resolution function scoped to
each module, returning the URL string.
const dependencyAsset = import.meta.resolve('component-lib/asset.css');
// file:///app/node_modules/component-lib/asset.css
import.meta.resolve('./dep.js');
// file:///app/dep.js 支持 Node.js 模块解析的所有功能。依赖解析受包内允许的导出解析的约束。
\All features of the Node.js module resolution are supported. Dependency resolutions are subject to the permitted exports resolutions within the package.
注意事项:
\Caveats:
-
这可能会导致同步文件系统操作,从而对性能产生类似于
require.resolve的影响。\This can result in synchronous file-system operations, which can impact performance similarly to
require.resolve. -
此功能在自定义加载程序中不可用(这会造成死锁)。
\This feature is not available within custom loaders (it would create a deadlock).
非标准 API:
\Non-standard API:
当使用 --experimental-import-meta-resolve 标志时,该函数接受第二个参数:
\When using the --experimental-import-meta-resolve flag, that function accepts
a second argument: