Simple wrapper of querySelectorAll + addEventListener

dom('.some').find<HTMLInputElement>('.fuga').on('click', e => { ... })

Returns dom collection that only provides .on() and .find()

All elements that matched the selector

addEventListener() to all elements that matches the selector

// all .some has now event listeners
dom('.some').on('click', e => { ... })

.on() returns a function that removes event listeners

const off = dom('.some').on('click', e => { ... })

// now all event listeners for click is removed
off()

querySelectorAll() to all elements and create new dom() instance with the flattend one.

※ This method is using Array.prototype.flatMap under the hood. Make sure your supported browsers have it or you should polyfill it.