<meta charset="utf-8">
<title>Custom Element</title>
<!-- CE polyfill -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/document-register-element/0.2.1/document-register-element.js"></script>
<hello-el data-text="Chris"></hello-el>
hello-el {
display:block;
font-weight:bold;
font-family:sans-serif;
color:#359;
}
hello-el button {
margin-left: 1em;
font-size: 0.7em;
}
(function() {
var helloProto = Object.create(HTMLElement.prototype);
helloProto.createdCallback = function() {
this.innerHTML = '';
this.appendChild(document.createElement('span'));
var button = document.createElement('button');
button.innerHTML = 'update';
button.addEventListener('click', function(e) {
this.setAttribute('data-text', Math.random().toString(36).substring(2,5));
}.bind(this));
this.appendChild(button);
this._setText(this.getAttribute('data-text'));
};
helloProto.attributeChangedCallback = function(name, oldVal, newVal) {
if (name === 'data-text') {
this._setText(newVal);
}
};
helloProto._setText = function(val) {
val = val || 'stranger';
// uppercase the text - exposes some issues
val = val.toUpperCase();
this.firstElementChild.innerHTML = 'Hello, ' + val + '.';
};
document.registerElement('hello-el', {
prototype: helloProto
});
})();
function attrChange() {
var helloEl = document.querySelector('hello-el');
helloEl.setAttribute('data-text', Math.floor(Math.random() * 100));
}
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. |