Question

我有定义类型的道具，但我希望它们的最后一个接受任何类型的值

props: {
        Size: String,
        Label: String,
        Name: String,
        value: Any
    }

我能做到吗？

Answer 1

来自VueJS docs：

null和undefined值将通过任何类型验证

或者您可以使用数组并在其中放置所有必需的类型：

propB: [String, Number]

Answer 2

当你有定义类型的 props 时支持 props 类型 any：

props: {
    custom1: null, // set as `null`
    custom2: undefined,  // or `undefined`
       
    // if you need to add extra rules, simply don't set the `type` prop
    custom3: {
        required: true,
        //... rest of your props
    }
}

演示：https://jsfiddle.net/xa91zoyq/4/

Answer 3

这就是我通过皮棉验证的方法。
您可以在这里进行实际验证。
lodash提供了许多方便的方法来检查类型

Private Sub TreeDraw(ByVal TreeRoot As String)
    'Throw New NotImplementedException
    TVNew.Nodes.Clear()
    Dim con = New OleDbConnection(StrConn)
    Dim strSql = "Select * from Tree WHERE TreeName = '" & _
        TreeRoot.Trim & "' AND levelNum = 0" & _
        " ORDER BY nodeID ASC"
    Dim da = New OleDbDataAdapter(strSql, con)
    Dim ds As New DataSet
    Dim lvl = 0

    Try
        da.Fill(ds, "Tree")
        Do While ds.Tables(0).Rows.Count > 0
            If lvl = 0 Then
                TVNew.Nodes.Add(ds.Tables(0).Rows(0)(4))
            Else
                For Each row As DataRow In ds.Tables(0).Rows
                    For Each node As TreeNode In TVNew.Nodes
                        If node.Text = row(3) Then
                            TVNew.SelectedNode = node
                            TVNew.SelectedNode.Nodes.Add(row(4))
                        End If
                    Next
                Next
            End If
            'MsgBox(lvl.ToString)
            lvl = lvl + 1

            da.Dispose()
            ds.Tables.Clear()

            strSql = "Select * from Tree WHERE TreeName = '" & _
                TreeRoot.Trim & "' AND levelNum =" & lvl & _
                " ORDER BY nodeID ASC"

            da = New OleDbDataAdapter(strSql, con)
            da.Fill(ds, "Tree")
        Loop
    Catch ex As Exception
        MsgBox(ex.Message & Chr(13) & da.SelectCommand.CommandText _
               , vbOKOnly, Application.ProductName)
        Exit Sub
    End Try

    TVNew.ExpandAll()

End Sub

VueJs如何将prop类型设置为任意？

3 个答案: