刘佩琦个人资料nnot read properties of undefined (reading 'emit')
苟伟    This error message indicates that the code is trying to access a property of an undefined variable. In this case, it"s likely that the "emit" property is being read from a variable that hasn"t been defined yet.
    To solve this issue, you should make sure that the variable is defined before you try to access its properties. You can use the "typeof" operator to check whether the variable is undefined before you try to access its properties:
一起向前走    ```
    if (typeof variable === "undefined") {
    // variable has not been defined yet
    } else {
韩庚近况
    // variable has been defined
海豚湾恋人 歌曲
谢娜出生日期    it = true;
    }
    ```
    If the variable is undefined, the "typeof" operator will return "undefined", and the if statement will execute the else block, where you can define the variable or use a different variable that holds the same value.
    。