Method _getParamString

src/common/mapping/WebMapV2.js:2501–2507

(obj, existingUrl, uppercase = false)

    }

    _getParamString(obj, existingUrl, uppercase = false) {
      const params = [];
      for (const i in obj) {
        params.push((uppercase ? i.toUpperCase() : i) + '=' + obj[i]);
      }
      return (!existingUrl || existingUrl.indexOf('?') === -1 ? '?' : '&') + params.join('&');
    }

    /**
     * @private