$(document).ready() for the 21st century
Returns a Promise for cleaner usage, provides a Promise chain helper function and can also be used as a pure function. The Promise will resolve instantly if the DOM is already ready.
- IE9+ (requires Promise polyfill)
- Edge *
- Firefox 29+
- Safari 8+
- Chrome 33+
- Opera 23+
npm install --save when-dom-ready
or for quick testing:
You can still use callbacks if you want to:
Promise chain helper
There is also a little helper function,
whenDomReady.resume(), that pauses the execution of a Promise chain and then resumes it with the last value once the DOM is ready.
This allows you to specify complex async control flow in simple readable code:
You can make the function pure by passing in a
document object. This is really useful for tests and mocking environments.
For example this works in Node.js:
const Window = ;const whenDomReady = ;const document = ;;
Again, you can use the callback version as a pure function too:
And of course the helper:
MIT © Luke Childs