<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
<script src="https://wzrd.in/standalone/expect@latest"></script>
<script src="https://wzrd.in/standalone/deep-freeze@latest"></script>
</head>
<body>
</body>
</html>
/*
* Open the console
* to see that the tests pass.
*/
const todo = (state, action) => {
switch (action.type) {
case 'ADD_TODO':
return {
id: action.id,
text: action.text,
completed: false
};
case 'TOGGLE_TODO':
if (state.id !== action.id) {
return state;
}
return {
state,
completed: !state.completed
};
default:
return state;
}
};
const todos = (state = [], action) => {
switch (action.type) {
case 'ADD_TODO':
return [
state,
todo(undefined, action)
];
case 'TOGGLE_TODO':
return state.map(t => todo(t, action));
default:
return state;
}
};
const testAddTodo = () => {
const stateBefore = [];
const action = {
type: 'ADD_TODO',
id: 0,
text: 'Learn Redux'
};
const stateAfter = [
{
id: 0,
text: 'Learn Redux',
completed: false
}
];
deepFreeze(stateBefore);
deepFreeze(action);
expect(
todos(stateBefore, action)
).toEqual(stateAfter);
};
const testToggleTodo = () => {
const stateBefore = [
{
id: 0,
text: 'Learn Redux',
completed: false
},
{
id: 1,
text: 'Go shopping',
completed: false
}
];
const action = {
type: 'TOGGLE_TODO',
id: 1
};
const stateAfter = [
{
id: 0,
text: 'Learn Redux',
completed: false
},
{
id: 1,
text: 'Go shopping',
completed: true
}
];
deepFreeze(stateBefore);
deepFreeze(action);
expect(
todos(stateBefore, action)
).toEqual(stateAfter);
};
testAddTodo();
testToggleTodo();
console.log('All tests passed.');
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. |