原生js实现表格翻页和跳转
本文实例为大家分享了js实现表格翻页和跳转的具体代码,供大家参考,具体内容如下
js代码里的row_num变量是显示数据的行数,修改后可改变每页显示的数量。
html代码:
<table border="" cellspacing="" cellpadding="" id="table"> <thead> <tr> <td>No</td> <td>Name</td> <td>Age</td> </tr> </thead> <tbody></tbody> <tfoot> <tr> <td colspan="3"> <input type="button" name="pre-btn" id="pre" value="<" /> <input type="text" name="page_num" id="page_num" value="" /> <span id="cur_page"></span> <input type="button" name="jump" id="jump" value="跳转" /> <input type="button" name="next-btn" id="next" value=">" /> </td> </tr> </tfoot> </table>
js代码:
let datas = [ [1, 'a', 16], [2, 'b', 20], [3, 'c', 22], [4, 'd', 44], [5, 'e', 11], [6, 'f', 12], [7, 'g', 13] ]; let cur_page = 0; let t = document.querySelector('tbody'); let page_num = document.querySelector('#page_num'); let row_num = 2; (() => jump_to(cur_page))(); function pre() { if (cur_page > 0) { cur_page--; jump_to(cur_page); } } function next() { if (cur_page < (datas.length / row_num) - 1) { cur_page++; jump_to(cur_page); } } function jump_to(page) { t.innerHTML = ''; for (let i = page * row_num; i < (page + 1) * row_num && i < datas.length; i++) { let row = t.insertRow(); for (let item of datas[i]) { row.insertCell().innerHTML = item; } } page_num.value = page + 1; } document.querySelector('#cur_page').innerText = `/${Math.ceil(datas.length / row_num)}`; document.querySelector('#pre').onclick = () => pre(); document.querySelector('#next').onclick = () => next(); document.querySelector('#jump').onclick = function() { if (page_num.value < (datas.length / row_num) + 1 && page_num.value - 1 !== cur_page && page_num.value > 0 && Number.isInteger(parseInt(page_num.value))) { cur_page = page_num.value - 1; jump_to(cur_page); } };
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