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: / var / canvas / node_modules / json2mq /
Filename : index.js
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var camel2hyphen = require('string-convert/camel2hyphen');

var isDimension = function (feature) {
  var re = /[height|width]$/;
  return re.test(feature);
};

var obj2mq = function (obj) {
  var mq = '';
  var features = Object.keys(obj);
  features.forEach(function (feature, index) {
    var value = obj[feature];
    feature = camel2hyphen(feature);
    // Add px to dimension features
    if (isDimension(feature) && typeof value === 'number') {
      value = value + 'px';
    }
    if (value === true) {
      mq += feature;
    } else if (value === false) {
      mq += 'not ' + feature;
    } else {
      mq += '(' + feature + ': ' + value + ')';
    }
    if (index < features.length-1) {
      mq += ' and '
    }
  });
  return mq;
};

var json2mq = function (query) {
  var mq = '';
  if (typeof query === 'string') {
    return query;
  }
  // Handling array of media queries
  if (query instanceof Array) {
    query.forEach(function (q, index) {
      mq += obj2mq(q);
      if (index < query.length-1) {
        mq += ', '
      }
    });
    return mq;
  }
  // Handling single media query
  return obj2mq(query);
};

module.exports = json2mq;