<html>
<head>
<meta name="description" content="[add your bin description]" />
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
</body>
</html>
/*
You can use functional closure to gain all the benefits of a deep copy, without a deep copy. It's a very different paradigm, but works well. Instead of trying to copy an existing object, just use a function to instantiate a new object when you need one.
*/
//First, create an function that returns an object
function template() {
return {
values: [1, 2, 3],
nest: {x: {a: "a", b: "b"}, y: 100}
};
}
//Then create a simple shallow copy function
function copy(a, b) {
Object.keys(b).forEach(function(key) {
a[key] = b[key];
});
}
//Create a new object, and copy the template's properties onto it
var newObject = {};
copy(newObject, template());
//Now that you have a new object, test to see what the its properties are:
console.log(Object.keys(newObject));
//This displays:
//["values", "nest"]
//Yes, those are the newObject's own properties, not references to properties on another object.
//Let's just check:
console.log(newObject.nest.x.b);
//This displays:
//"b"
//The newObject has acquired all of the template object's properties, but is free of any dependency chain.
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. |