mojibaka/detect/version.js

✨ Browser emoji support detection toolkit

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = detectVersion;

var _canvas = require('../canvas');

var VERSION_CANDIDATE_EMOJI = {
  '6.1': '😙', // Kissing Face With Smiling Eyes
  '7.0': '🙂', // Slightly Smiling Face
  '8.0': '🤔', // Thinking Face
  '9.0': '🤣' // Rolling On The Floor Laughing
};

function detectVersion(context) {
  var maxVersion = 0.0;

  Object.keys(VERSION_CANDIDATE_EMOJI).forEach(function (unicodeVersion) {
    var newVersion = parseFloat(unicodeVersion, 10);
    if (newVersion > maxVersion && (0, _canvas.canDrawCharacter)(VERSION_CANDIDATE_EMOJI[unicodeVersion], context)) {
      maxVersion = newVersion;
    }
  });

  return maxVersion;
}
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