Function stringToUserReadable

_benchmarks/sample_echarts.js:16476–16478

(str)

      var USER_READABLE_DEFUALT_TIME_PATTERN = '{yyyy}-{MM}-{dd} {hh}:{mm}:{ss}';

      function stringToUserReadable(str) {
        return str && trim(str) ? str : '-';
      }

      function isNumberUserReadable(num) {
        return !!(num != null && !isNaN(num) && isFinite(num));