deno run，运行一个文件

deno run [OPTIONS] [SCRIPT_ARG]...

deno run https://examples.deno.land/hello-world.ts

deno run --allow-read --allow-net jsr:@std/http/file-server

deno run --allow-read=/etc jsr:@std/http/file-server

deno run -A jsr:@std/http/file-server

curl https://examples.deno.land/hello-world.ts | deno run -

Type checking options Jump to heading#

--check Jump to heading#

Enable type-checking. This subcommand does not type-check by default If the value of "all" is supplied, remote modules will be included. Alternatively, the 'deno check' subcommand can be used.

--no-check Jump to heading#

Skip type-checking. If the value of "remote" is supplied, diagnostic errors from remote modules will be ignored.

Dependency management options Jump to heading#

--cached-only Jump to heading#

Require that remote dependencies are already cached.

--frozen Jump to heading#

Error out if lockfile is out of date.

--import-map Jump to heading#

Load import map file from local file or remote URL.

--lock Jump to heading#

Check the specified lock file. (If value is not provided, defaults to "./deno.lock").

--no-lock Jump to heading#

Disable auto discovery of the lock file.

--no-npm Jump to heading#

Do not resolve npm modules.

--no-remote Jump to heading#

Do not resolve remote modules.

--node-modules-dir Jump to heading#

Sets the node modules management mode for npm packages.

--reload Jump to heading#

Short flag: -r

Reload source code cache (recompile TypeScript) no value Reload everything jsr:@std/http/file-server,jsr:@std/assert/assert-equals Reloads specific modules npm: Reload all npm modules npm:chalk Reload specific npm module.

--vendor Jump to heading#

Toggles local vendor folder usage for remote modules and a node_modules folder for npm packages.

Options Jump to heading#

--allow-scripts Jump to heading#

Allow running npm lifecycle scripts for the given packages Note: Scripts will only be executed when using a node_modules directory (--node-modules-dir).

--cert Jump to heading#

Load certificate authority from PEM encoded file.

--config Jump to heading#

Short flag: -c

Configure different aspects of deno including TypeScript, linting, and code formatting Typically the configuration file will be called deno.json or deno.jsonc and automatically detected; in that case this flag is not necessary.

--env-file Jump to heading#

Load environment variables from local file Only the first environment variable with a given key is used. Existing process environment variables are not overwritten, so if variables with the same names already exist in the environment, their values will be preserved. Where multiple declarations for the same environment variable exist in your .env file, the first one encountered is applied. This is determined by the order of the files you pass as arguments.

--ext Jump to heading#

Set content type of the supplied file.

--location Jump to heading#

Value of globalThis.location used by some web APIs.

--no-code-cache Jump to heading#

Disable V8 code cache feature.

--no-config Jump to heading#

Disable automatic loading of the configuration file.

--seed Jump to heading#

Set the random number generator seed.

--v8-flags Jump to heading#

To see a list of all available flags use --v8-flags=--help Flags can also be set via the DENO_V8_FLAGS environment variable. Any flags set with this flag are appended after the DENO_V8_FLAGS environment variable.

Debugging options Jump to heading#

--inspect Jump to heading#

Activate inspector on host:port [default: 127.0.0.1:9229]

--inspect-brk Jump to heading#

Activate inspector on host:port, wait for debugger to connect and break at the start of user script.

--inspect-wait Jump to heading#

Activate inspector on host:port and wait for debugger to connect before running user code.

File watching options Jump to heading#

--hmr Jump to heading#

Watch for file changes and restart process automatically. Local files from entry point module graph are watched by default. Additional paths might be watched by passing them as arguments to this flag.

--no-clear-screen Jump to heading#

Do not clear terminal screen when under watch mode.

--watch Jump to heading#

Watch for file changes and restart process automatically. Local files from entry point module graph are watched by default. Additional paths might be watched by passing them as arguments to this flag.

--watch-exclude Jump to heading#

Exclude provided files/patterns from watch mode.

用法 Jump to heading#

要运行 这个文件，请使用：

deno run https://docs.denohub.com/examples/scripts/hello_world.ts

你也可以在本地运行文件。确保你在正确的目录下，并使用：

deno run hello-world.ts

默认情况下，Deno 在沙盒中运行程序，没有访问磁盘、网络或生成子进程的权限。这是因为 Deno 运行时是 默认安全的。你可以使用 --allow-* 和 --deny-* 标志 来授予或拒绝所需的权限。

权限示例 Jump to heading#

授予从磁盘读取和监听网络的权限：

deno run --allow-read --allow-net server.ts

授予从磁盘读取允许列表中的文件的权限：

deno run --allow-read=/etc server.ts

授予所有权限 不推荐这样做，仅用于测试：

deno run -A server.ts

如果你的项目需要多个安全标志，你应该考虑使用 deno task 来执行它们。

监听 Jump to heading#

要监听文件更改并自动重启进程，请使用 --watch 标志。Deno 内置的应用程序监听器会在文件更改时立即重启你的应用程序。

确保将标志放在文件名之前，例如：

deno run --allow-net --watch server.ts

Deno 的监听器会在控制台中通知你更改，并在你工作时在控制台中警告错误。

运行 package.json 脚本 Jump to heading#

package.json 脚本可以使用 deno task 命令执行。

从 stdin 运行代码 Jump to heading#

你可以从 stdin 管道代码并立即运行它：

curl https://docs.denohub.com/examples/scripts/hello_world.ts | deno run -

终止运行 Jump to heading#

要停止运行命令，请使用 ctrl + c。