tldr/pages/common/babel.md

babel

A transpiler which converts code from JavaScript ES6/ES7 syntax to ES5 syntax. More information: https://babeljs.io/docs/babel-cli.

• 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