es-check-min
Advanced tools
A CLI tool and library to find the minimum compatible ECMAScript version of a JavaScript file.
A CLI tool and library to find the minimum compatible ECMAScript version of a JavaScript file.
A simple tool built on es-check to find the lowest supported ECMAScript version of a JavaScript file.
The es-check-min tool does not require any arguments, and simply runs a loop to determine the file's lowest compatible ECMAScript version. This is in slight contrast to es-check which checks a file against a specified ECMAScript version.
Detection of the following ECMAScript versions is supported:
Note: The underlying es-check implementation technically supports ES3 and ES14 / ES2023, but certain tests aren't passing against these targets so they are not currently returned.
The es-check-min CLI tool requires Node 20+. The exported APIs are ESM and share the Node 20+ requirement.
Invoke directly:
npx es-check-min
Or, install locally to access the CLI commands in a single project or to import the provided APIs:
npm install es-check-min
Or, install globally for access across your system:
npm install --global es-check-min
es-check-min ./mystery-file.js
prints...
es6/es2015
es-check-min <file>
| Positional Argument | Description | Type |
|---|---|---|
file | Path to the JavaScript file to check. | string |
| Option | Alias | Description | Type |
|---|---|---|---|
--help | -h | Show help | boolean |
--version | -v | Show version number | boolean |
A single function is exported:
function esCheckMin(path: string): Promise<EsVersion | undefined>
Requests for something like this have come up once or twice:
es-check-min is just a trivial wrapper over es-check. All credit goes to Jeff Wainwright and contributors for creating and maintaining es-check.
Issues and pull requests are welcome.
MIT © Eric Mika
FAQs
A CLI tool and library to find the minimum compatible ECMAScript version of a JavaScript file.
The npm package es-check-min receives a total of 1 weekly downloads. As such, es-check-min popularity was classified as not popular.
We found that es-check-min demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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