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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                * 單行定義的對象,最后一個成員不以逗號結尾。多行定義的對象,最后一個成員以逗號結尾。 ``` // bad const a = { k1: v1, k2: v2, }; const b = { k1: v1, k2: v2 }; // good const a = { k1: v1, k2: v2 }; const b = { k1: v1, k2: v2, }; ``` * 對象盡量靜態化,一旦定義,就不得隨意添加新的屬性。如果添加屬性不可避免,要使用Object.assign方法。 ``` // bad const a = {}; a.x = 3; // if reshape unavoidable const a = {}; Object.assign(a, { x: 3 }); // good const a = { x: null }; a.x = 3; ``` * 如果對象的屬性名是動態的,可以在創造對象的時候,使用屬性表達式定義。 ``` // bad const obj = { id: 5, name: 'San Francisco', }; obj[getKey('enabled')] = true; // good const obj = { id: 5, name: 'San Francisco', [getKey('enabled')]: true, }; ``` * 另外,對象的屬性和方法,盡量采用簡潔表達法,這樣易于描述和書寫。 ``` const ref = 'some value'; // bad const atom = { ref: ref, value: 1, addValue: function (value) { return atom.value + value; }, }; // good const atom = { ref, value: 1, addValue(value) { return atom.value + value; }, }; ```
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