将自定义 属性 添加到 vuejs 组件

Question

如何在 vue 组件中设置自定义 属性？

var myComponent = Vue.extend({
    data: function() {
        return {
            item: {}
        }
    },

    created: function() {
        // This does not seem to work
        this.item.customProperty = 'customProperty';
    }
});

Answer 1

看来你应该使用 Object.assign:

var myComponent = Vue.extend({
    data: function() {
        return {
            item: {}
        }
    },

    created: function() {
        // This does not seem to work
        this.item = Object.assign(this.item, {customProperty:'customProperty'});
    }
});

Answer 2

您可以使用 Vue.set 添加反应性：

var myComponent = Vue.extend({
    data: function() {
        return {
            item: {}
        }
    },

    created: function() {
        Vue.set(this.item, 'customProperty', 'customProperty');
    }
});