javascript - 检查所有属性是否为假

Question

react 状态如下:

[
   {type: "Benzine", active: false},
   {type: "Diesel", active: false},
   {type: "Electricity", active: false}
]

如何检查所有 active 值是否为 false。

有没有办法用 lodash 做到这一点？

Answer 1

您可以使用以下方法测试每个 active 属性是否为真:

    var arr = [
       {type: "Benzine", active: false},
       {type: "Diesel", active: false}, 
       {type: "Electricity", active: false}
    ]

    console.log(arr.every(obj => obj.active));

var arr = [
       {type: "Benzine", active: true},
       {type: "Diesel", active: true}, 
       {type: "Electricity", active: true}
   ]

   console.log(arr.every(obj => obj.active));

    var arr = [
       {type: "Benzine", active: false},
       {type: "Diesel", active: true}, 
       {type: "Electricity", active: false}
    ]

    console.log(arr.every(obj => obj.active));