Babel/core

Transforms the passed in code. Calling a callback with an object with the generated code, source map, and AST. In Babel 6, this method was synchronous babel/core transformSync did not exist. For backward-compatibility, babel/core, this function will behave synchronously if no callback is given.

Babel pronounced "babble" is a community-driven project used by many companies and projects, and is maintained by a group of volunteers. If you'd like to help support the future of the project, please consider:. Our top sponsors are shown below! Babel is a tool that helps you write code in the latest version of JavaScript. When your supported environments don't support certain features natively, Babel will help you compile those features down to a supported version. Try it out at our REPL.

Babel/core

Scan your projects for vulnerabilities. Fix quickly with automated fixes. Get started with Snyk for free. The npm package babel-core receives a total of 7,, downloads a week. As such, we scored babel-core popularity level to be Key ecosystem project. Based on project statistics from the GitHub repository for the npm package babel-core, we found that it has been starred 42, times. Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points. Further analysis of the maintenance status of babel-core based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Sustainable. An important project maintenance signal to consider for babel-core is that it hasn't seen any new versions released to npm in the past 12 months , and could be considered as a discontinued project, or that which receives low attention from its maintainers. As a healthy sign for on-going project maintenance, we found that the GitHub repository had at least 1 pull request or issue interacted with by the community. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases. To help you get started, we've collected the most common ways that babel-core is being used within popular public projects. All transformations will use your local configuration files. See options to disable it.

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There are quite a few tools in the Babel toolchain that try to make it easy for you to use Babel whether you're an "end-user" or building an integration of Babel itself. This will be a quick introduction to those tools and you can read more about them in the "Usage" section of the docs. If you're using a framework, the work of configuring Babel might be different or actually already handled for you. Check out our interactive setup guide instead. That will involve both transforming new syntax and polyfilling missing features. Creating a config file named babel.

Transforms the passed in code. Calling a callback with an object with the generated code, source map, and AST. In Babel 6, this method was synchronous and transformSync did not exist. For backward-compatibility, this function will behave synchronously if no callback is given. If you're starting with Babel 7 and need synchronous behavior, please use transformSync since this backward-compatibility will be dropped in Babel 8. Returning an object with the generated code, source map, and AST. Returning an promise for an object with the generated code, source map, and AST.

Babel/core

This tutorial is written using Babel v7 however the general concepts will apply to any version. You can find the official repository for the Understanding the Modern Web Stack tutorial series here. This includes the final versions of the code examples from each tutorial to help make sure you haven't missed anything. You can also submit pull requests for any errors or corrections you may find and I will update the blog posts accordingly.

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We suggest also looking at the closed ones to get a sense of the kinds of issues you can tackle. Last Release 6 years ago. Siilwyn babel-generator Update jsesc to the latest version. A glob , regex, or mixed array of both, matching paths to only compile. Contributors -. Specify a custom callback to generate a module id with. This will lead to wacky code but is handy for scenarios where you can't use source maps. See that function for information about ConfigItem fields. An optional callback that controls whether a comment should be output or not. Synchronous version of babel. JLHwung babel-cli Add missing flow type to babel-cli for consistency. JLHwung babel-core fix: pass optionLoc when validating plugin object. If you're starting with Babel 7 and need synchronous behavior, please use transformSync since this backward-compatibility will be dropped in Babel 8. Andarist babel-core Cache plugins and presets based on their identity. You will have to adapt it for the browsers you want to support.

While you can install Babel CLI globally on your machine, it's much better to install it locally project by project. Note: If you do not have a package.

At the point of this publish, all other packages are at v7. If changes are desired, the item should be removed from the list and replaced with either a normal Babel config value, or with a replacement item created by babel. This does not emit sourcemap files by itself! Axnyff babel-plugin-proposal-class-properties Fix super in class fields.. All the Babel modules you'll need are published as separate npm packages scoped under babel since version 7. Code Examples Readme. GitHub Stars Last updated on 22 February, at UTC. Maintainers 3. Andarist babel-cli Use the async version of transform in babel-cli.