<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<select name="select1" id="select1">
<option value="foo" selected>foo</option>
<option value="bar">bar</option>
<option value="baz">baz</option>
</select>
<select name="select2" id="select2">
<option value="foo1" class="foo" selected>foo1</option>
<option value="foo2" class="foo">foo2</option>
<option value="foo3" class="foo">foo3</option>
<option value="bar1" class="bar">bar1</option>
<option value="bar2" class="bar">bar2</option>
<option value="bar3" class="bar">bar3</option>
<option value="baz1" class="baz">baz1</option>
<option value="baz2" class="baz">baz2</option>
<option value="baz3" class="baz">baz3</option>
</select>
</body>
</html>
#select2 option {
display: none
}
#select2 .foo {
display: block
}
// on attribue les variables dont on aura besoin
var select1 = document.getElementById('select1')
var select2 = document.getElementById('select2')
// à chaque fois que l'on selectionne une autre entrée dans select1
select1.addEventListener('change', function () {
// on boucle sur les options du 2eme select
for (var i = 0; i < select2.options.length; i++) {
var el = select2.options[i]
// si l'option a la bonne classe (l'option selectionné dans le 1er select)
if (el.className === select1.value) {
// on l'affiche
el.style.display = 'block'
} else {
// sinon on le cache
el.style.display = 'none'
}
}
// là, on selectionne la 1ere option visible dans le 2nd select
for (i = 0; i < select2.options.length; i++) {
if (select2.options[i].style.display === 'block') {
select2.selectedIndex = i
break
}
}
})
Output
You can jump to the latest bin by adding /latest
to your URL
Keyboard Shortcuts
Shortcut | Action |
---|---|
ctrl + [num] | Toggle nth panel |
ctrl + 0 | Close focused panel |
ctrl + enter | Re-render output. If console visible: run JS in console |
Ctrl + l | Clear the console |
ctrl + / | Toggle comment on selected lines |
ctrl + ] | Indents selected lines |
ctrl + [ | Unindents selected lines |
tab | Code complete & Emmet expand |
ctrl + shift + L | Beautify code in active panel |
ctrl + s | Save & lock current Bin from further changes |
ctrl + shift + s | Open the share options |
ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts |
JS Bin URLs
URL | Action |
---|---|
/ | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
/edit | Edit the current bin |
/watch | Follow a Code Casting session |
/embed | Create an embeddable version of the bin |
/latest | Load the very latest bin (/latest goes in place of the revision) |
/[username]/last | View the last edited bin for this user |
/[username]/last/edit | Edit the last edited bin for this user |
/[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
/quiet | Remove analytics and edit button from rendered output |
.js | Load only the JavaScript for a bin |
.css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. |