Vanilla HTM

Framework-free JSX syntax in pure JS using HTM and native DOM creation.

بۇ قوليازمىنى بىۋاسىتە قاچىلاشقا بولمايدۇ. بۇ باشقا قوليازمىلارنىڭ ئىشلىتىشى ئۈچۈن تەمىنلەنگەن ئامبار بولۇپ، ئىشلىتىش ئۈچۈن مېتا كۆرسەتمىسىگە قىستۇرىدىغان كود: // @require https://update.greasyfork.org/scripts/591770/1905406/Vanilla%20HTM.js

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        Vanilla HTM
// @namespace   Violentmonkey Scripts
// @version     1.0.0
// @require     https://cdn.jsdelivr.net/npm/[email protected]/mini/index.umd.js
// @grant       none
// @author      Paesss
// @description Framework-free JSX syntax in pure JS using HTM and native DOM creation.
// ==/UserScript==

(function (global) {
  "use strict";

  const SVG_NS = "http://www.w3.org/2000/svg";

  // Standard SVG tags requiring the SVG namespace
  const SVG_TAGS = new Set([
    "svg",
    "path",
    "circle",
    "rect",
    "line",
    "polyline",
    "polygon",
    "ellipse",
    "g",
    "use",
    "text",
    "tspan",
    "symbol",
    "defs",
    "clipPath",
    "mask",
    "pattern",
    "marker",
    "foreignObject",
  ]);

  /**
   * Appends dynamic children into a parent DOM container
   */
  function appendChildren(parent, children) {
    for (let i = 0; i < children.length; i++) {
      const child = children[i];

      if (child == null || child === false || child === true) {
        continue;
      }

      if (Array.isArray(child)) {
        appendChildren(parent, child);
      } else if (child instanceof Node) {
        parent.appendChild(child);
      } else {
        parent.appendChild(document.createTextNode(String(child)));
      }
    }
  }

  /**
   * Enhanced Hyperscript factory function
   */
  function h(tag, props, ...children) {
    // 1. Functional Components
    if (typeof tag === "function") {
      const normalizedProps = Object.assign({}, props);
      normalizedProps.children = children.length === 1 ? children[0] : children;
      return tag(normalizedProps);
    }

    // 2. Document Fragments (<>...</>)
    if (!tag) {
      const fragment = document.createDocumentFragment();
      appendChildren(fragment, children);
      return fragment;
    }

    // 3. Namespace Resolution (SVG Support)
    const isSvg = typeof tag === "string" && SVG_TAGS.has(tag);
    const el = isSvg
      ? document.createElementNS(SVG_NS, tag)
      : document.createElement(tag);

    // 4. Property & Attribute Binding
    if (props) {
      for (let key in props) {
        const val = props[key];

        if (val === undefined || val === null) continue;

        // Ref Callback / Object
        if (key === "ref") {
          if (typeof val === "function") val(el);
          else if (val && typeof val === "object") val.current = el;
          continue;
        }

        // Forced Property Set (.value, .checked, etc.)
        if (key.charCodeAt(0) === 46 /* '.' */) {
          el[key.slice(1)] = val;
          continue;
        }

        // Event Listeners (e.g. onClick, onInput)
        if (
          key.charCodeAt(0) === 111 /* 'o' */ &&
          key.charCodeAt(1) === 110 /* 'n' */
        ) {
          const eventName = key.slice(2).toLowerCase();
          el.addEventListener(eventName, val);
          continue;
        }

        // Attribute Normalization
        let attrName = key;
        if (key === "className") attrName = "class";
        else if (key === "htmlFor") attrName = "for";

        // Style Props (Object or String)
        if (key === "style") {
          if (typeof val === "object" && val !== null) {
            Object.assign(el.style, val);
          } else {
            el.style.cssText = String(val);
          }
          continue;
        }

        // Dataset Attributes
        if (key === "dataset" && typeof val === "object") {
          Object.assign(el.dataset, val);
          continue;
        }

        // Boolean Attributes
        if (typeof val === "boolean") {
          if (val) {
            el.setAttribute(attrName, "");
            if (attrName in el) el[attrName] = true;
          } else {
            el.removeAttribute(attrName);
            if (attrName in el) el[attrName] = false;
          }
          continue;
        }

        // Standard Properties vs Attributes
        if (
          attrName in el &&
          !isSvg &&
          attrName !== "list" &&
          attrName !== "form"
        ) {
          try {
            el[attrName] = val;
          } catch {
            el.setAttribute(attrName, String(val));
          }
        } else {
          el.setAttribute(attrName, String(val));
        }
      }
    }

    // 5. Append Children
    appendChildren(el, children);

    return el;
  }

  // Bind HTM to the hyperscript factory on the global scope
  global.html = typeof htm !== "undefined" ? htm.bind(h) : null;

})(
  // Universal Global Scope Resolution
  typeof globalThis !== "undefined" ? globalThis :
  typeof window !== "undefined" ? window :
  typeof self !== "undefined" ? self :
  this || {}
);