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README.md

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);
  });
});

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Test files for ES5 compatibility

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