Hoe - Sorteer een tabel
Leer hoe u een HTML-tabel sorteert met JavaScript.
Klik op de knop om de tabel alfabetisch te sorteren op klantnaam:
| Naam | Land |
|---|---|
| Snelle beker van Berglund | Zweden |
| Noord Zuid | VK |
| Alfred's voerbak | Duitsland |
| Koninklijk eten | Duitsland |
| Verzamelde voedselmagazijnen | Italië |
| Specialiteiten van Parijs | Frankrijk |
| Eilandhandel | VK |
| Lachende Bacchus-wijnkelders | Canada |
Een sorteerfunctie maken
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;
}
}
}
Tabel sorteren door op de koppen te klikken
Klik op de koppen om de tabel te sorteren.
Klik op "Naam" om op naam te sorteren en op "Land" om op land te sorteren.
De eerste keer dat u klikt, is de sorteerrichting oplopend (A tot Z).
Klik nogmaals, en de sorteerrichting zal dalend zijn (Z naar A):
| Naam | Land |
|---|---|
| Snelle beker van Berglund | Zweden |
| Noord Zuid | VK |
| Alfred's voerbak | Duitsland |
| Koninklijk eten | Duitsland |
| Verzamelde voedselmagazijnen | Italië |
| Specialiteiten van Parijs | Frankrijk |
| Eilandhandel | VK |
| Lachende Bacchus-wijnkelders | Canada |
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>
Tabel numeriek sorteren
Voorbeeld
if (Number(x.innerHTML) > Number(y.innerHTML)) {
shouldSwitch = true;
break;
}