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babel — A transpiler which converts code from JavaScript ES6/ES7 syntax to ES5 syntax. More information: <ht

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

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

Solution

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

Code Snippets

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,...}}

Context

tldr-pages: common/babel

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