Check ECMAScript Version Compatibility

A small lib that helps check and make sure that your JavaScript will run in chosen ES version environment (defaults to ES5).

Install

npm install --save-dev check-ecmascript-version-compatibility

Usage

Here's an example that uses Mocha:

var checkFile = require("check-ecmascript-version-compatibility");

describe("my file", function () {
  it("is ES2016-compliant", function (done) {
    // It can take awhile to parse large files, so you may need to
    // increase your timeouts.
    this.slow(8000);
    this.timeout(10000);

    checkFile("path/to/file.js", 2016, done);
  });
});

If you do not pass in a version number, it will default to ES5.

describe("my file", function () {
  it("is ES5-compliant", function (done) {
    // It can take awhile to parse large files, so you may need to
    // increase your timeouts.
    this.slow(8000);
    this.timeout(10000);

    checkFile("path/to/file.js", done);
  });
});