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                [TOC] ## 概述 | 選項 | 類型 | 說明 | | --- | --- | --- | | type | `String`、`Number`、`Boolean`、`Array`、`Object`、`Date`、`Function`、`Symbol`,任何自定義構造函數、或上述內容組成的數組 | 會檢查一個`prop`是否是給定的類型,否則拋出警告 | | default | any | 為該`prop`指定一個默認值。如果該`prop`沒有被傳入,則換做用這個值。對象或數組的默認值必須從一個工廠函數返回。 | | required | Boolean | 定義該`prop`是否是必填項 | | validator | Function | 自定義驗證函數會將該`prop`的值作為唯一的參數代入。在非生產環境下,如果該函數返回一個`false`的值 (也就是驗證失敗),一個控制臺警告將會被拋出 | 實例 ``` <script> export default { props: { // 檢測類型 + 其他驗證 age: { type: Number, default: 0, required: true, validator: function(value) { return value >= 0 } } } } </script> ```
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