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[ons-back-button 実例コード](https://ja.onsen.io/v2/api/js/ons-back-button.html#tutorial)
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[ons-back-button 実例コード](https://ja.onsen.io/v2/api/js/ons-back-button.html#tutorial)
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```html
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<!DOCTYPE html>
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<html lang="ja">
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<head>
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<link rel="stylesheet" href="https://unpkg.com/onsenui/css/onsenui.css">
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<link rel="stylesheet" href="https://unpkg.com/onsenui/css/onsen-css-components.min.css">
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<script src="https://unpkg.com/onsenui/js/onsenui.min.js"></script>
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<script>
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document.addEventListener('init', function(event) {
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var page = event.target;
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if (page.id === 'page1') {
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page.querySelector('#push-button').onclick = function() {
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document.querySelector('#myNavigator').pushPage('page2.html', {
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data: {
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title: 'Page 2'
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}
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});
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};
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} //...略
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else if (page.id === 'page2') {
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page.querySelector('ons-toolbar .center').innerHTML = page.data.title;
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// ここから
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var backButton = page.querySelector('ons-back-button');
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backButton.options = {
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callback: function() {
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var page1 = document.querySelector('#page1'); // 前に戻る処理(slide)完了後#page1の
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var page1Paragraph = page1.querySelector('p'); // 子孫 p 要素の
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page1Paragraph.textContent = this.hoge; // textContentプロパティに自前のプロパティ代入
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},
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animation: 'slide', // “slide”, “lift”, “fade” and “none”
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hoge: 'ほげほげ' // 自前のプロパティ
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};
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/* // page2の戻るボタン(ons-back-button要素)をClickしたタイミングで
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var page2 = document.querySelector('#page2');
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var backButton = page2.querySelector('ons-back-button');
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backButton.onClick = function (event) { console.log(this); };
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// backButton.addEventListener('click', function (event) {console.log(this); event.preventDefault(); });
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*/
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}
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//...略
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//...略
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else if (page.id === 'page2') {
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page.querySelector('ons-toolbar .center').innerHTML = page.data.title;
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// ここから
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var backButton = page.querySelector('ons-back-button');
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backButton.options = {
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callback: function () {
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var page1Center = document.querySelector('#page1 .center');
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page1Center.textContent = this.hoge + ' から戻って来たぜ！';
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},
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animation: 'fade', // デフォルト 'slide'
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hoge: page.data.title // 自前のプロパティ
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};
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});
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</script>
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</head>
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<body>
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<ons-navigator swipeable id="myNavigator" page="page1.html"></ons-navigator>
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<template id="page1.html">
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<ons-page id="page1">
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<ons-toolbar>
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<div class="center">Page 1</div>
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</ons-toolbar>
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<p>This is the first page.</p>
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<ons-button id="push-button">Push page</ons-button>
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</ons-page>
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</template>
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<template id="page2.html">
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<ons-page id="page2">
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<ons-toolbar>
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<div class="left">
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<ons-back-button>Page 1</ons-back-button>
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/
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</div>
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<div class="center"></div>
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</ons-toolbar>
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<p>This is the second page.</p>
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</ons-page>
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</template>
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</body>
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</html>
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```
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ons-back-buttonの[optionsプロパティ](https://ja.onsen.io/v2/api/js/ons-back-button.html#properties)に任意のオブジェクトを渡す例です
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