vue3.0 Ref never 类型 , 用的是 typescript

• Z时代
• 2024-03-13
• 分类：IT

下面我给 option.value.series[0]['data'] 赋值的时候报错, number 类型无法赋值给 nerve 类型, 想知道应该怎么解决呢

const option = ref({
    title: {
        text: "Traffic Sources",
        left: "center"
    },
    tooltip: {
        trigger: "item",
        formatter: "{a} <br/>{b} : {c} ({d}%)"
    },
    legend: {
        orient: "vertical",
        left: "left",
        data: ["Direct", "Email", "Ad Networks", "Video Ads", "Search Engines"]
    },
    series: [
        {
            name: "Traffic Sources",
            type: "pie",
            radius: "55%",
            center: ["50%", "60%"],
            data: [],
            emphasis: {
                itemStyle: {
                    shadowBlur: 10,
                    shadowOffsetX: 0,
                    shadowColor: "rgba(0, 0, 0, 0.5)"
                }
            }
        }
    ]
});
 option.value.series[0]['data'] =
            [{ value: 335, name: "Direct" },
            { value: 310, name: "Email" },
            { value: 234, name: "Ad Networks" },
            { value: 135, name: "Video Ads" },
            { value: 1548, name: "Search Engines" }]

回答：

默认对象属性值空数组类型推断结果是 never[] , 加上类型断言即可

      data: [] as { value: number; name: string }[],

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