spx.render

The spx.render method can be leveraged to perform targeted rendering insertions in the DOM. It works similar to spx-append and spx-prepend but provides programmatic control over the operation. The method accepts either a function callback that expects a configuration return value.

Use this method with mindfulness. Expensive operations was cause bottlenecks.

Example

Below is an example of the method works. You should also take a look at the SPX Infinite Scrolling example which uses the spx.render for infinite pagination.

import spx from 'spx';
spx.render('/p4p-list?page=2', function(current, fetched) {
  const foo = current.querySelector('#boxers')
  const bar = fetched.querySelector('#boxers')
  foo.append(...bar.children)
  return {
    history: 'replace',
    method: 'append',
    childNodes: true,
    cache: true,
    capture: true
  }
}).then(function(page) {
  console.log(page)
})

Page 1

Let’s assume you have click event listener setup for #next-page button. When a user clicks the button then the above example snippet fires and a fetch begins for Page 2.

<!-- Page 1 -->
<main>
  <h1>The P4P lightweight boxing division.</h1>
  <ul id="boxers">
    <li>Vasyl Lomachenko</li>
    <li>Devin Haney</li>
  </ul>
  <button id="next" type="button">
    Next
  </button>
</main>

Page 2

On this page we have 2 additional boxers in a list. Based on the method code example above, we will be appending the childNodes to the ul list using the id #foo on Page 1.

<!-- Page 2 -->
<main>
  <h1>The P4P lightweight boxing division.</h1>
  <ul id="boxers">
    <li>Vasyl Lomachenko</li>
    <li>Devin Haney</li>
  </ul>
</main>