关于js的问题，如何解决？

Question

如何判断以下数组对象的time时间格式，题目在图片上，谢谢

    let arr=[
        {
            name:'张三',
            time:'2022-01-01'
        },
        {
            name:'李四',
            time:'2022-12-1'
        },
        {
            name:'王五',
            time:'22'
        }
    ]

Answer 1

正则判断下就行，

    let arr = [
        {
            name: '张三',
            time: '2022-01-01'
        },
        {
            name: '李四',
            time: '2022-12-1'
        },
        {
            name: '王五',
            time: '22'
        }
    ]
    let re = /^\d{4}(-\d{1,2}){2}$/
    for (let item of arr) {
        console.log(re.test(item.time))
    }