题解 | JS80 表格排序

function sort(type, order) {
    let table = document.getElementById("jsList")
    let items = document.getElementsByTagName("tr");
    let data = []
    Array.from(items).map((item, index) => {
        let itemTd = item.getElementsByTagName("td");
        if (index > 0) {
            let obj = {
                id: itemTd[0].innerText,
                price: itemTd[1].innerText,
                sales: itemTd[2].innerText,
                content: item
            }
            data.push(obj);
        }
    })
    data = data.sort((a, b) => {
        if (order == "desc") {
            return b[type] - a[type];
        } else {
            return a[type] - b[type];
        }
    })
    // 清空dom元素
    table.innerHTML = "";
    data.map((item, index) => {
        table.appendChild(item.content)
    });
    return data
}