javascript - 如何过滤对象数组中的数字和字符串

Question

我想过滤员工详细信息..因为我有包含数字和字符串的选择选项...我可以过滤对象中的字符串但不能使其成为数字...请指导我

        <select id="endDate" onchange="sortEDate()">
            <option value="All Years">All Years</option>
            <option value="Past Years">Past Years</option>
            <option value="Present">Present</option>
        </select>
        <p id="demo1"></p>

const employees = [
    { firstname: "Dav", start: 2013, end: 2018 },
    { firstname: "Gemmy", start: 2016, end: "Present" }
]
function sortEDate() {
    const filterDate = [];
    let cDate = document.getElementById("endDate").value;
    employees.forEach(function(item, index, array) {
        if (item.end === cDate) {
            filterDate.push(item);
        }
    });

    let fDate = "<table>";
    filterDate.forEach(function(filterDate) {
        fDate += "<tr>";
        fDate += "<td>" + filterDate.firstname + "</td>";
        fDate += "<td>" + filterDate.start + "</td>";
        fDate += "<td>" + filterDate.end + "</td>";
        fDate += "</tr>";
    });
    fDate += "</table>";
    document.getElementById("demo1").innerHTML = fDate;

    let allEducation = document.getElementById("endDate").value;
    if (allEducation === "All Years") {
        showEmployees();
    }
}

标签： javascriptarrayssortingfilter

Answer 1

在下面，如果块尝试使用==而不是===

if (item.end == cDate) {
    filterDate.push(item);
}