codepoints.net add sample character examples

Seeing "embedded" page font examples is neat, but sometimes it is useful to see how your own system handles glyphs on its own. This script adds samples for each displayed instance.

נכון ליום 04-08-2025. ראה הגרסה האחרונה.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        codepoints.net add sample character examples
// @namespace   Violentmonkey Scripts
// @match       https://codepoints.net/*
// @grant       none
// @version     1.0.0
// @author      myf
// @description Seeing "embedded" page font examples is neat, but sometimes it is useful to see how your own system handles glyphs on its own. This script adds samples for each displayed instance.
// @license     CC0
// ==/UserScript==

/*
 * https://greasyfork.org/en/scripts/544593
*/

const fonts = [
  'Segoe UI Emoji',
  'Segoe UI Symbol',
  'Twemoji Mozilla',
  'Helvetica, Arial, sans-serif',
  'Verdana, system-ui, sans-serif',
  'Georgia, Times New Roman, serif'
];
function addChars() {
  const charEls = document.querySelectorAll('[data-cp]:not(:has(samp))');
  for ( const charEl of charEls ) {
    const dataCp = charEl.getAttribute('data-cp');
    const char = String.fromCodePoint(
      dataCp.indexOf('U+') == 0
      ? parseInt( dataCp.slice(2), 16 )
      : parseInt( dataCp )
    );
    const samp = document.createElement('samp');
    for ( const font of fonts ) {
      const span = document.createElement('span');
      span.style.fontFamily = font;
      span.textContent = char;
      if(font.indexOf('Emoji')>1) {
        span.textContent += '\uFE0F';
      }
      if(font.indexOf('Symbol')>1) {
        span.textContent += '\uFE0E';
      }
      span.title = font;
      samp.append(span);
    }
    charEl.tagName == 'MAIN'
    ? charEl.insertAdjacentElement('afterbegin',samp)
    : charEl.append(samp);
  }
}

addChars()

setInterval(addChars,500);