this.container.innerHTML = '';
        for (let line of this.lines) {
            line.style.visibility = 'visible'
        }
        this.start();
    }

    /**
     * Start the animation and rener the lines depending on their data attributes.
     */
    async start() {
        this.addFinish()
        await this._wait(this.startDelay);

        for (let line of this.lines) {

{
    "description": "TensorFlow is an end-to-end open source platform for machine learning. It has a comprehensive, flexible ecosystem of tools, libraries, and community resources that lets researchers push the state-of-the-art in ML and developers easily build and deploy ML-powered applications.",
    "license": "Apache-2.0",
    "title": "TensorFlow",
    "upload_type": "software",
    "creators": [
        {
            "name": "TensorFlow Developers"
        }

Now let's **refactor** this app a bit to increase **security** and **versatility**.

If you check the previous app, in the UI you can see that, up to now, it lets the client decide the `id` of the `Hero` to create. 😱

We shouldn't let that happen, they could overwrite an `id` we already have assigned in the DB. Deciding the `id` should be done by the **backend** or the **database**, **not by the client**.

   * {@code throws} clause: Some such methods can in fact throw a checked exception (e.g., by
   * calling code written in Kotlin).) Typically, we want to let a {@link Throwable} from such a
   * method propagate untouched, just as we'd typically let it do for a non-reflective call.
   * However, we can't usually write {@code throw t;} when {@code t} has a static type of {@link

   * {@code throws} clause: Some such methods can in fact throw a checked exception (e.g., by
   * calling code written in Kotlin).) Typically, we want to let a {@link Throwable} from such a
   * method propagate untouched, just as we'd typically let it do for a non-reflective call.
   * However, we can't usually write {@code throw t;} when {@code t} has a static type of {@link

 *       .where(new TypeParameter<T>() {}, elementType);
 * }
 * }
 *
 * @author Ben Yu
 * @since 12.0
 */
/*
 * A nullable bound would let users create a TypeParameter instance for a parameter with a nullable
 * bound. However, it would also let them create `new TypeParameter<@Nullable T>() {}`, which
 * wouldn't behave as users might expect. Additionally, it's not clear how the TypeToken API could

   * {@code throws} clause: Some such methods can in fact throw a checked exception (e.g., by
   * calling code written in Kotlin).) Typically, we want to let a {@link Throwable} from such a
   * method propagate untouched, just as we'd typically let it do for a non-reflective call.
   * However, we can't usually write {@code throw t;} when {@code t} has a static type of {@link

   * {@code throws} clause: Some such methods can in fact throw a checked exception (e.g., by
   * calling code written in Kotlin).) Typically, we want to let a {@link Throwable} from such a
   * method propagate untouched, just as we'd typically let it do for a non-reflective call.
   * However, we can't usually write {@code throw t;} when {@code t} has a static type of {@link

if(!s)return void v(t);const i=(t=>{if(!t)return 0;let{transitionDuration:e,transitionDelay:s}=window.getComputedStyle(t);const i=Number.parseFloat(e),n=Number.parseFloat(s);return i||n?(e=e.split(",")[0],s=s.split(",")[0],1e3*(Number.parseFloat(e)+Number.parseFloat(s))):0})(e)+5;let n=!1;const r=({target:s})=>{s===e&&(n=!0,e.removeEventListener(o,r),v(t))};e.addEventListener(o,r),setTimeout((()=>{n||a(e)}),i)},w=(t,e,s,i)=>{const n=t.length;let o=t.indexOf(e);return-1===o?!s&&i?t[n-1]:t[0]:(o+=...

const nextElement = element || activeElement &&\n      this._getItemByDirection(direction, activeElement)\n    const nextElementIndex = this._getItemIndex(nextElement)\n    const isCycling = Boolean(this._interval)\n\n    let directionalClassName\n    let orderClassName\n    let eventDirectionName\n\n    if (direction === DIRECTION_NEXT) {\n      directionalClassName = CLASS_NAME_LEFT\n      orderClassName = CLASS_NAME_NEXT\n      eventDirectionName = DIRECTION_LEFT\n    } else {\n      directionalClassName...