Options

ts-node supports --print (-p), --eval (-e), --require (-r) and --interactive (-i) similar to the node.js CLI options.

The API includes additional options not shown below.

Environment variables, where available, are in ALL_CAPS

CLI	TSConfig	Description
Shell
`-h, --help`		Prints the help text
`-v, --version`		Prints the version. `-vv` prints node and typescript compiler versions, too
`-e, --eval`		Evaluate code
`-p, --print`		Print result of `--eval`
`-i, --interactive`		Opens the REPL even if stdin does not appear to be a terminal
TSConfig
`-P, --project [path]`		Path to TypeScript JSON project file Env: `TS_NODE_PROJECT`
`--skip-project`		Skip project config resolution and loading Default: `false` Env: `TS_NODE_SKIP_PROJECT`
`-c, --cwd-mode`		Resolve config relative to the current directory instead of the directory of the entrypoint script
`-O, --compiler-options [opts]`	`compilerOptions`	JSON object to merge with compiler options Env: `TS_NODE_COMPILER_OPTIONS`
`--show-config`		Print resolved `tsconfig.json`, including `ts-node` options, and exit
Typechecking
`-T, --transpile-only`	`transpileOnly`	Use TypeScript's faster `transpileModule` Default: `false` Env: `TS_NODE_TRANSPILE_ONLY`
`--type-check`		Opposite of `--transpile-only` Default: `true` Env: `TS_NODE_TYPE_CHECK`
`-H, --compiler-host`	`compilerHost`	Use TypeScript's compiler host API Default: `false` Env: `TS_NODE_COMPILER_HOST`
`--files`	`files`	Load `files`, `include` and `exclude` from `tsconfig.json` on startup Default: `false` Env: `TS_NODE_FILES`
`-D, --ignore-diagnostics [code]`	`ignoreDiagnostics`	Ignore TypeScript warnings by diagnostic code Env: `TS_NODE_IGNORE_DIAGNOSTICS`
Transpilation
`-I, --ignore [pattern]`	`ignore`	Override the path patterns to skip compilation Default: `/node_modules/` Env: `TS_NODE_IGNORE`
`--skip-ignore`	`skipIgnore`	Skip ignore checks Default: `false` Env: `TS_NODE_SKIP_IGNORE`
`-C, --compiler [name]`	`compiler`	Specify a custom TypeScript compiler Default: `typescript` Env: `TS_NODE_COMPILER`
`--transpiler [name]`	`transpiler`	Specify a third-party, non-typechecking transpiler
`--prefer-ts-exts`	`preferTsExts`	Re-order file extensions so that TypeScript imports are preferred Default: `false` Env: `TS_NODE_PREFER_TS_EXTS`
Diagnostics
`--log-error`	`logError`	Logs TypeScript errors to stderr instead of throwing exceptions Default: `false` Env: `TS_NODE_LOG_ERROR`
`--pretty`	`pretty`	Use pretty diagnostic formatter Default: `false` Env: `TS_NODE_PRETTY`
		Enable debug logging Env: `TS_NODE_DEBUG`
Advanced
`-r, --require [path]`	`require`	Require a node module before execution
`--cwd`		Behave as if invoked in this working directory Default: `process.cwd()` Env: `TS_NODE_CWD`
`--emit`	`emit`	Emit output files into `.ts-node` directory Default: `false` Env: `TS_NODE_EMIT`
		Path to history file for REPL Default: `~/.ts_node_repl_history` Env: `TS_NODE_HISTORY`