Yunkou

print('Converting')
try:
    print(int('x'))
except:
    print('Converting failed!')
else:
    print('Converting successful!')
finally:
    print('done')

Yunkou

/* 检测对象类型
 * @param: obj {JavaScript Object}
 * @param: typeStr {String} 以大写开头的 JS 类型名
 * @return: {Boolean}
 */

function isType(obj, typeStr) {
  return Object.prototype.toString.call(obj).slice(8, -1) === typeStr;	
}