了解如何使用 JavaScript 对 HTML 表格进行排序。
单击按钮可根据客户名称按字母顺序对表进行排序:
姓名 | 国家 |
---|---|
伯格伦德斯纳布科普 | 瑞典 |
北/南 | 英国 |
阿尔弗雷德·富特基斯特 | 德国 |
埃森国王 | 德国 |
里乌尼蒂食品杂志 | 意大利 |
巴黎特色菜 | 法国 |
岛屿贸易 | 英国 |
笑酒神巴克斯酒窖 | 加拿大 |
function sortTable() {
var table, rows, switching, i, x, y, shouldSwitch;
table = document.getElementById("myTable");
switching = true;
/* Make a loop that will continue until
no switching has been done: */
while (switching) {
// Start by saying: no switching is done:
switching = false;
rows = table.rows;
/* Loop through all table rows (except the
first, which contains table headers): */
for (i = 1; i < (rows.length - 1); i++) {
// Start by saying there should be no switching:
shouldSwitch = false;
/* Get the two elements you want to compare,
one from current row and one from the next: */
x = rows[i].getElementsByTagName("TD")[0];
y = rows[i + 1].getElementsByTagName("TD")[0];
// Check if the two rows should switch place:
if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
// If so, mark as a switch and break the loop:
shouldSwitch = true;
break;
}
}
if (shouldSwitch) {
/* If a switch has been marked, make the switch
and mark that a switch has been done: */
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
}
}
}
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单击标题对表格进行排序。
点击"Name" 按名称排序,点击"Country" 按国家/地区排序。
第一次单击时,排序方向为升序(A 到 Z)。
再次点击,排序方向为降序(Z到A):
姓名 | 国家 |
---|---|
伯格伦德斯纳布科普 | 瑞典 |
北/南 | 英国 |
阿尔弗雷德·富特基斯特 | 德国 |
埃森国王 | 德国 |
里乌尼蒂食品杂志 | 意大利 |
巴黎特色菜 | 法国 |
岛屿贸易 | 英国 |
笑酒神巴克斯酒窖 | 加拿大 |
<table id="myTable2">
<tr>
<!--When a header is clicked, run the sortTable function, with a parameter,
0 for sorting by names, 1 for sorting by country: -->
<th onclick="sortTable(0)">Name</th>
<th onclick="sortTable(1)">Country</th>
</tr>
...
<script>
function sortTable(n) {
var table, rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
table = document.getElementById("myTable2");
switching = true;
// Set the sorting direction to ascending:
dir = "asc";
/* Make a loop that will continue until
no switching has been done: */
while (switching) {
// Start by saying: no switching is done:
switching = false;
rows = table.rows;
/* Loop through all table rows (except the
first, which contains table headers): */
for (i = 1; i < (rows.length - 1); i++) {
// Start by saying there should be no switching:
shouldSwitch = false;
/* Get the two elements you want to compare,
one from current row and one from the next: */
x = rows[i].getElementsByTagName("TD")[n];
y = rows[i + 1].getElementsByTagName("TD")[n];
/* Check if the two rows should switch place,
based on the direction, asc or desc: */
if (dir == "asc") {
if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
// If so, mark as a switch and break the loop:
shouldSwitch = true;
break;
}
} else if (dir == "desc") {
if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
// If so, mark as a switch and break the loop:
shouldSwitch = true;
break;
}
}
}
if (shouldSwitch) {
/* If a switch has been marked, make the switch
and mark that a switch has been done: */
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
// Each time a switch is done, increase this count by 1:
switchcount ++;
} else {
/* If no switching has been done AND the direction is "asc",
set the direction to "desc" and run the while loop again. */
if (switchcount == 0 && dir == "asc") {
dir = "desc";
switching = true;
}
}
}
}
</script>
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