This feature has been deprecated. Use up.element.get() instead.
up.element.get()
Load unpoly-migrate.js to polyfill deprecated features.
unpoly-migrate.js
Returns the first descendant element matching the given selector.
The parent element whose descendants to search.
If omitted, all elements in the document will be searched.
document
The CSS selector to match.
The first element matching the selector.
Returns null or undefined if no element macthes.
null
undefined
