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Use npm Packages

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <div class="bookmarks">
  <ul class="bookmark-list"></ul>

  <input type="url" class="bookmark-url"/>
  <button type="button" class="bookmark-button">save</button>
 * Bookmark のモデルクラス
class Bookmark {

     * @param {String} url
     * @param {Date} created
    constructor (opts) {
        this.url      = opts.url;
        this.created  = opts.created;

     * "n 分前" みたいな形式でブックマークした時刻を表示する
     * @return {String}
    getRelativeTime () {
        return moment(this.created).fromNow();


const BOOKMARK_TEMPLATE = _.template(`
    <li class="bookmark">
      <p>url: <a href="<%- url %>"><%- url %></a></p>
      <time><%- getRelativeTime() %></time>

class BookmarkView {

    constructor ($element) {
        this.$element        = $element;
        this.$bookmarkList   = $element.find('.bookmark-list');
        this.$bookmarkUrl    = $element.find('.bookmark-url');
        this.$bookmarkButton = $element.find('.bookmark-button');

        // ユーザー入力を加工してイベントを発火
        this.$bookmarkButton.on('click', () => {
            const url = this.$bookmarkUrl.val();
            $(this).triggerHandler('addNewBookmark', url);

     * @param {Array<Bookmark>} bookmarks
    render (bookmarks) {
        bookmarks.forEach((bookmark) => {
            const html      = BOOKMARK_TEMPLATE(bookmark);
            const $bookmark = $.parseHTML(html);


class BookmarksPresenter {

     * Model と View を初期化
     * View からユーザーのイベントを受け取る
     * Model を更新したら View に反映する
    constructor ($element) {
        this.bookmarks = [];
        this.view      = new BookmarkView($element, this.bookmarks);
        $(this.view).on('addNewBookmark', (e, url) => this.addNewBookmark(url));

     * ユーザー入力を元に Model を更新し、 View に反映する
    addNewBookmark (url) {
        const bookmark = new Bookmark({
            url     : url,
            created : new Date(),


    const presenter = new BookmarksPresenter($('.bookmarks'));

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