Method apply

src/ide/spans.ts:867–885

(from:Position, to:Position, origin = "+input")

  commentElem?: HTMLElement;

  apply(from:Position, to:Position, origin = "+input") {
    this.lineBackgroundClass = "COMMENT_" + this.kind;
    this._attributes.className = this.type + " " + this.kind;

    if(!this.commentElem) {
      this.commentElem = document.createElement("div");
    }

    this.commentElem.className = "comment-widget" + " " + this.kind;

    if(this.editor.inCodeBlock(to)) {
      this.commentElem.className += " code-comment-widget";
    }

    if(this.source.delay) {
      this["updateWidget"] = debounce(this.updateWidget, this.source.delay);
    }
    super.apply(from, to, origin);
  }

  clear(origin:string = "+delete") {
    if(!this.marker) return;