Function makePrintable

_benchmarks/sample_echarts.js:7173–7215

* If in __DEV__ environment, get console printable message for users hint. * Parameters are separated by ' '. * @usuage * makePrintable('This is an error on', someVar, someObj); * * @param hintInfo anything about the current execution context to hint users. * @throws Er

()

     */

    function makePrintable() {
      var hintInfo = [];

      for (var _i = 0; _i < arguments.length; _i++) {
        hintInfo[_i] = arguments[_i];
      }

      var msg = '';

      if ("development" !== 'production') {
        // Fuzzy stringify for print.
        // This code only exist in dev environment.
        var makePrintableStringIfPossible_1 = function (val) {
          return val === void 0 ? 'undefined' : val === Infinity ? 'Infinity' : val === -Infinity ? '-Infinity' : eqNaN(val) ? 'NaN' : val instanceof Date ? 'Date(' + val.toISOString() + ')' : isFunction(val) ? 'function () { ... }' : isRegExp(val) ? val + '' : null;
        };

        msg = map(hintInfo, function (arg) {
          if (isString(arg)) {
            // Print without quotation mark for some statement.
            return arg;
          } else {
            var printableStr = makePrintableStringIfPossible_1(arg);

            if (printableStr != null) {
              return printableStr;
            } else if (typeof JSON !== 'undefined' && JSON.stringify) {
              try {
                return JSON.stringify(arg, function (n, val) {
                  var printableStr = makePrintableStringIfPossible_1(val);
                  return printableStr == null ? val : printableStr;
                }); // In most cases the info object is small, so do not line break.
              } catch (err) {
                return '?';
              }
            } else {
              return '?';
            }
          }
        }).join(' ');
      }

      return msg;
    }
    /**
     * @throws Error
     */