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deno check
Command-line Usage
deno check [OPTIONS] [file]...
Download and type-check without execution.
deno check jsr:@std/http/file-server
Unless --reload is specified, this command will not re-download already cached dependencies
Dependency management options Jump to heading
--import-map
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Load import map file from local file or remote URL.
--lock
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Check the specified lock file. (If value is not provided, defaults to "./deno.lock").
--no-lock
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Disable auto discovery of the lock file.
--no-npm
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Do not resolve npm modules.
--no-remote
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Do not resolve remote modules.
--node-modules-dir
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Sets the node modules management mode for npm packages.
--reload
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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
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Toggles local vendor folder usage for remote modules and a node_modules folder for npm packages.
Options Jump to heading
--all
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Type-check all code, including remote modules and npm packages.
--allow-import
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Short flag: -I
Allow importing from remote hosts. Optionally specify allowed IP addresses and host names, with ports as necessary. Default value: deno.land:443,jsr.io:443,esm.sh:443,raw.githubusercontent.com:443,user.githubusercontent.com:443.
--cert
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Load certificate authority from PEM encoded file.
--config
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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.
--doc
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Type-check code blocks in JSDoc as well as actual code.
--doc-only
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Type-check code blocks in JSDoc and Markdown only.
--no-config
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Disable automatic loading of the configuration file.
Example Jump to heading
Type-check without execution.
const x: string = 1 + 1n;
deno check example.ts