Question

<script src="content/personSchedule.js"></script>
var personSchedule = [
    {
        "date": "02/6/2017",
        "title": "CEO",
        "mondayAM": "Apple Campus AM",
        "mondayPM": "Apple Campus PM",
        "tuesdayAM": "Apple Campus AM",
        "tuesdayPM": "Apple Campus PM",
        "wednesdayAM": "Apple Campus AM",
        "wednesdayPM": "Apple Campus PM",
        "thursdayAM": "Apple Campus AM",
        "thursdayPM": "Apple Campus PM",
        "fridayAM": "Apple Campus AM",
        "fridayPM": "Apple Campus PM",
        "saturdayAM": "Apple Campus AM",
        "saturdayPM": "Apple Campus PM"
    },
    {
        "date": "02/13/2017",
        "title": "CEO",
        "mondayAM": "Apple Campus AM",
        "mondayPM": "Apple Campus PM",
        "tuesdayAM": "Apple Campus AM",
        "tuesdayPM": "Apple Campus PM",
        "wednesdayAM": "Apple Campus AM",
        "wednesdayPM": "Apple Campus PM",
        "thursdayAM": "Apple Campus AM",
        "thursdayPM": "Apple Campus PM",
        "fridayAM": "Apple Campus AM",
        "fridayPM": "Apple Campus PM",
        "saturdayAM": "Apple Campus AM",
        "saturdayPM": "Apple Campus PM"
    }
];

我有一个日期选择器

<input type="date" id="date" step="7" min="2017-02-06" />

日期更改时，我想更改HTML中显示的文字

$("#date").change(function(){
    var theSelectedDate = $('#date').val();
    console.log(theSelectedDate);
    $.each(json.people.person, function(i, v) {
        if (v.name.search(new RegExp(/theSelectedDate/)) != -1) {
            alert(v.title);
            return;
        }
    });
});

当我运行时，我收到以下错误

未捕获的SyntaxError：无效的正则表达式：缺少/

Answer 1

你写了/theSelectedDate，我认为它应该是/theSelectedDate/或其他一些RegExp格式。

Answer 2

你的正则表达式模式错误：应该像新的RegExp(/ab+c/, 'i'); https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp

在您的情况下，您需要RegExp(thSelectedDate)，因为您将值传递给RegExp()，并且该函数会通过在其前后附加\来自动评估该值。

Answer 3

您可能希望执行以下操作：

function getOjectForDate(date){
    return myArray.filter(function(value){
        return value.date == date
    })
}
console.log(getOjectForDate(input.val())  //  returns array with every valid object

如果您只想获得一个值或未定义，请使用Array.find method。

其中myArray是JSON对象，输入是输入

如何搜索所选日期的JSON对象？

3 个答案: