tldr/pages/common/babel.md

# babel

> A transpiler which converts code from JavaScript ES6/ES7 syntax to ES5 syntax.
> More information: <https://babeljs.io/>.

- Transpile a specified input file and output to `stdout`:

`babel {{path/to/file}}`

- Transpile a specified input file and output to a specific file:

`babel {{path/to/input_file}} --out-file {{path/to/output_file}}`

- Transpile the input file every time it is changed:

`babel {{path/to/input_file}} --watch`

- Transpile a whole directory of files:

`babel {{path/to/input_directory}}`

- Ignore specified comma-separated files in a directory:

`babel {{path/to/input_directory}} --ignore {{ignored_file1,ignored_file2,...}}`

- Transpile and output as minified JavaScript:

`babel {{path/to/input_file}} --minified`

- Choose a set of presets for output formatting:

`babel {{path/to/input_file}} --presets {{preset1,preset2,...}}`

- Display help:

`babel --help`