JS基础（一）异常错误

EvalError（运算错误）: raised when an error occurs executing code in eval()

RangeError（范围错误）: raised when a numeric variable or parameter is outside of its valid range  

ReferenceError（引用错误）: raised when de-referencing an invalid reference

SyntaxError（语法错误）: raised when a syntax error occurs while parsing code in eval()

TypeError（类型错误）: raised when a variable or parameter is not a valid type

URIError（URL地址错误）: raised when encodeURI() or decodeURI() are passed invalid parameters