WebReflection/handy-wrap

A generic EventTarget Proxy wrapper to chain and/or group common operations.

handy-wrap

^{Social Media Photo by Rudy Dong on Unsplash}

A generic EventTarget Proxy wrapper to chain and/or group common operations, used to showcase this blog post code.

This module is 450 bytes once minified (plus brotli).

Single

• $('css'[, parent]) to query the document and handle a single reference
• $(target) to wrap directly an EventTarget implemented interface
• $(t).on(type, ...rest) to add a listener and chain the proxy
• $(t).emit(type, ...rest) to dispatch an event and chain the proxy
• $(t).field to get the field value
• $(t).field = value to set a field value
• $(t).method(...args) to invoke a (bound) method and chain the proxy
• $(t).valueOf() to retrieve the wrapped reference

List

• $$('css'[, parent]) to query the document and handle a list of references
• $$([target1, target2, ...targetN]) to wrap directly more EventTarget implemented interfaces
• $$([...t]).on(type, ...rest) to add a listener to all targets and chain the proxy
• $$([...t]).emit(type, ...rest) to dispatch many events and chain the proxy
• $$([...t]).field to get all fields values as array
• $$([...t]).field = value to set all fields values
• $$([...t]).method(...args) to invoke all (bound) methods and chain the proxy
• $$([...t]).valueOf() to retrieve the list of references
• $$([...t]).length to retrieve the length of the list

Plugins

This module exports a plugins Map to enhance the utilities as needed.

// import {$, $$, plugins} from 'https://unpkg.com/handy-wrap';
import {$, $$, plugins} from 'handy-wrap';

const html = Symbol('html');

plugins.set(html, (value, name, proxy) => {
  const output = [];
  for (const node of (value instanceof NodeList ? value : [value]))
    output.push(node.outerHTML);
  return output.join('');
});

// returns the document.body HTML
$('body')[html];

// returns all <LI> as HTML
$$('li')[html];