Command line usage:
deno eval [OPTIONS] [CODE_ARG]...Evaluate JavaScript from the command line.
deno eval "console.log('hello world')"
To evaluate as TypeScript:
deno eval --ext=ts "const v: string = 'hello'; console.log(v)"
This command has implicit access to all permissions.
--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Error out if lockfile is out of date.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.
--conditions Jump to heading#
Use this argument to specify custom conditions for npm package exports. You can also use DENO_CONDITIONS env var. .
--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-config Jump to heading#
Disable automatic loading of the configuration file.
--preload Jump to heading#
A list of files that will be executed before the main module.
--print Jump to heading#
Short flag: -p
print result to stdout.
--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.
--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.
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