Hoe OM - Sorteer 'n tabel
Leer hoe om 'n HTML-tabel te sorteer met JavaScript.
Klik op die knoppie om die tabel alfabeties te sorteer, gebaseer op die kliënt se naam:
Naam | Land |
---|---|
Berglund se vinnige beker | Swede |
Noord Suid | VK |
Alfred se voerboks | Duitsland |
Koninklike kos | Duitsland |
Versamelde Kospakhuise | Italië |
Parys spesialiteite | Frankryk |
Eilandhandel | VK |
Laggende Bacchus Wynkelders | Kanada |
Skep 'n sorteerfunksie
Voorbeeld
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;
}
}
}
Sorteer tabel deur op die kopskrifte te klik
Klik op die opskrifte om die tabel te sorteer.
Klik "Naam" om volgens name te sorteer, en "Land" om volgens land te sorteer.
Die eerste keer wat jy klik, is die sorteerrigting stygend (A tot Z).
Klik weer, en die sorteerrigting sal afneem (Z tot A):
Naam | Land |
---|---|
Berglund se vinnige beker | Swede |
Noord Suid | VK |
Alfred se voerboks | Duitsland |
Koninklike kos | Duitsland |
Versamelde Kospakhuise | Italië |
Parys spesialiteite | Frankryk |
Eilandhandel | VK |
Laggende Bacchus Wynkelders | Kanada |
Voorbeeld
<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>
Sorteer tabel numeries
Voorbeeld
if (Number(x.innerHTML) > Number(y.innerHTML)) {
shouldSwitch = true;
break;
}