Class DocumentFragment

static/katex/katex.mjs:884–944

* This node represents a document fragment, which contains elements, but when * placed into the DOM doesn't have any representation itself. It only contains * children and doesn't have any DOM node properties.

 * children and doesn't have any DOM node properties.
 */
class DocumentFragment {
  // HtmlDomNode
  // Never used; needed for satisfying interface.
  constructor(children) {
    this.children = void 0;
    this.classes = void 0;
    this.height = void 0;
    this.depth = void 0;
    this.maxFontSize = void 0;
    this.style = void 0;
    this.children = children;
    this.classes = [];
    this.height = 0;
    this.depth = 0;
    this.maxFontSize = 0;
    this.style = {};
  }

  hasClass(className) {
    return utils.contains(this.classes, className);
  }
  /** Convert the fragment into a node. */


  toNode() {
    const frag = document.createDocumentFragment();

    for (let i = 0; i < this.children.length; i++) {
      frag.appendChild(this.children[i].toNode());
    }

    return frag;
  }
  /** Convert the fragment into HTML markup. */


  toMarkup() {
    let markup = ""; // Simply concatenate the markup for the children together.

    for (let i = 0; i < this.children.length; i++) {
      markup += this.children[i].toMarkup();
    }

    return markup;
  }
  /**
   * Converts the math node into a string, similar to innerText. Applies to
   * MathDomNode's only.
   */


  toText() {
    // To avoid this, we would subclass documentFragment separately for
    // MathML, but polyfills for subclassing is expensive per PR 1469.
    // $FlowFixMe: Only works for ChildType = MathDomNode.
    const toText = child => child.toText();

    return this.children.map(toText).join("");