Javascript 錯誤：.split 不是函數

Question

我正在嘗試將全名分成名字和姓氏並填充相應的字段。 但是，我一直遇到 JavaScript 錯誤“.split is not a function”

這是我的代碼

function SplitName (executionContext) {​​​

var formContext = executionContext.getFormContext();    
var FirstName = formContext.getAttribute('firstname');
var LastName = formContext.getAttribute('lastname');
var FullNameField = FullName.getValue();

if (FullNameField =! null){​​​

var SplitField = FullNameField.split(" ",2);
var FirstNameValue = SplitField[0];
var LastNameValue = SplitField[1];
        FirstName.setValue(FirstNameValue);
        LastName.setValue(LastNameValue);
    }​​​

else {​​​
        FirstName.setValue('');
        LastName.setValue('');
    }​​​
}​​​

任何關於我做錯了什么的幫助/建議將不勝感激

Answer 1

FullNameField =! null

您正在將 FullNameField 分配給“true”。 切換到：

FullNameField != null

Answer 2

在對它運行“split”方法之前，變量“FullNameField”應該是一個字符串。

因此，嘗試使用

FullNameField.toString().split(" ",2);

Answer 3

所以不知何故這使它起作用。

function SplitName (executionContext) {​​​

var formContext = executionContext.getFormContext();    
var FirstName = formContext.getAttribute('firstname');
var LastName = formContext.getAttribute('lastname');
var FullNameField = FullName.getValue();

if (Lastname != null){

if (FullNameField != null){​​​

var SplitField = FullNameField.split(" ",2);
var FirstNameValue = SplitField[0];
var LastNameValue = SplitField[1];
        FirstName.setValue(FirstNameValue);
        LastName.setValue(LastNameValue);
    }​​​

else {​​​
        FirstName.setValue('');
        LastName.setValue('');
    }​​​
}
}​​​