Function getFieldFromDoc

lib/index.es.js:2865–2875

(doc, parsedField)

// this would just be "return doc[field]", but fields
// can be "deep" due to dot notation
function getFieldFromDoc(doc, parsedField) {
  var value = doc;
  for (var i = 0, len = parsedField.length; i < len; i++) {
    var key = parsedField[i];
    value = value[key];
    if (!value) {
      break;
    }
  }
  return value;
}

function compare(left, right) {
  return left < right ? -1 : left > right ? 1 : 0;