The unpkg CDN is powered by Cloudflare, one of the world's largest and fastest cloud network platforms.JS Tutorial JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS BigInt JS Number Methods JS Number Properties JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words Instead, please reach out to with any questions or concerns. Please do not contact npm for help with unpkg. unpkg is not affiliated with or supported by npm, Inc. Unpkg is an open source project built and maintained by Michael Jackson. That's it! Now when you npm publish you'll have a version available on unpkg as well. Use a build script to generate your UMD build in the umd directory when you publish.Add the umd directory to your files array in package.json.Add the umd (or dist) directory to your.You can do this easily using the following setup: All you need to do is include your UMD build in your npm package (not your repo, that's different!). Workflowįor npm package authors, unpkg relieves the burden of publishing your code to a CDN in addition to the npm registry. This will also load more quickly because we won't have to resolve the latest version and redirect them. If you want users to be able to use the latest version when you cut a new release, the best policy is to put the version number in the URL directly in your installation instructions. Redirects are cached for 10 minutes at the CDN, 1 minute in browsers.

This is the latest version when no version is specified, or the maxSatisfying version when a semver version is given. URLs that do not specify a package version number redirect to one that does. This works because npm does not allow package authors to overwrite a package that has already been published with a different one at the same version number.īrowsers are instructed (via the Cache-Control header) to cache assets indefinitely (1 year).

The CDN caches files based on their permanent URL, which includes the npm package version. This feature is very experimental Cache Behavior any/file?meta) ?module Expands all “bare” import specifiers in JavaScript modules to unpkg URLs. Query Parameters ?meta Return metadata about any file in a package as JSON (e.g. use a “bare” URL), unpkg will serve the file specified by the unpkg field in package.json, or fall back to main.Īppend a / at the end of a URL to view a listing of all the files in a package.

may also use a semver range or a tag instead of a fixed version number, or omit the version/tag entirely to use the latest tag.

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