mock中怎么随机在数组中选取几个(不是一个)返回一个新数组?

Question

例如

//选取1个
"_card_Currency|1": ["人民币", "美元", "日元", "全币种", "港币"]

//重复2次(我要的不是重复)
"_card_Currency|2": ["人民币", "美元", "日元", "全币种", "港币"]

如果想要选取2个怎么做?

Answer 1

Mock.Random.extend({
     constellations: [
         { image: "../../images/shopDetail/df1.png", name: "可预约" },
         { image: "../../images/shopDetail/df2.png", name: "提供WIFI" },
         { image: "../../images/shopDetail/df3.png", name: "免费停车" },
         { image: "../../images/shopDetail/df4.png", name: "内设包厢" }
     ], 
     //自定义占位符名字tags
     tags: function (date) {
        //随机选择2个作为返回值
        //return this.pick(this.constellations, 2)
        //随机选择2-4个作为返回值
        return this.pick(this.constellations, 2, 4)
    }, 
 })

数据占位符 DPD
使用 @tags