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@babel/core

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@babel/core

Babel compiler core.

  • 7.19.0
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  • npm
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What is @babel/core?

@babel/core is the core library of the Babel JavaScript compiler. It is primarily used for transforming ES6+ code into backwards compatible JavaScript that can be run by older JavaScript engines. Babel is widely used for its ability to transpile new JavaScript syntax, JSX, TypeScript, and for its plugin system that allows developers to use experimental features and customize the build process.

What are @babel/core's main functionalities?

Syntax Transformation

Transforms modern JavaScript syntax into a backwards compatible version. For example, it can convert ES6 arrow functions into regular ES5 functions.

require('@babel/core').transform('code', { presets: ['@babel/preset-env'] });

Plugin/Preset Application

Applies Babel plugins or presets to the code to enable specific transformations or sets of transformations.

require('@babel/core').transform('code', { plugins: ['@babel/plugin-transform-arrow-functions'] });

Source Map Generation

Generates source maps which help in debugging the original source code after it has been transformed by Babel.

require('@babel/core').transform('code', { sourceMaps: true });

Code Generation

Generates code from an Abstract Syntax Tree (AST). This is useful when you want to transform the AST directly or manipulate it before generating code.

require('@babel/core').transformFromAst(ast, 'code', { presets: ['@babel/preset-env'] });

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Package last updated on 05 Sep 2022

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