回答編集履歴
3
sample
test
CHANGED
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@@ -33,3 +33,145 @@
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とすればよいのでは？
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# sample
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ちょっと面倒な処理がはいりますが概ねこんな感じ
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```javascript
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<script>
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'use strict';
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const searchNextId=todos=>{
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var idx=todos.length;
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var ids=todos.map(x=>x.id).sort();
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for(var i=0;i<ids.length;i++){
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if(ids[i]!==i){
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idx=i;
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break;
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}
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}
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return idx;
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};
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window.addEventListener('DOMContentLoaded', ()=>{
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const inputContent = document.querySelector('#inputContent');
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const todoList = document.querySelector('#todoList');
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const todos = [];
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document.querySelector('#addButton').addEventListener('click', () => {
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const id = searchNextId(todos);
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const comment = inputContent.value;
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const remove = '削除';
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const task = {id,comment,remove};
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todos.push(task);
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let tr = document.createElement('tr');
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tr.classList.add('addTr');
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let td = document.createElement('td');
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td.classList.add('id');
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td.textContent = id;
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tr.appendChild(td);
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td = document.createElement('td');
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td.classList.add('comment');
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td.textContent = comment;
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tr.appendChild(td);
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td = document.createElement('td');
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td.classList.add('remove');
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let removeBtn = document.createElement('button');
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removeBtn.textContent = remove;
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td.appendChild(removeBtn);
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tr.appendChild(td);
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todoList.appendChild(tr);
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removeBtn.addEventListener('click', e => {
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const idx=Array.from(document.querySelectorAll('.remove button')).indexOf(e.target);
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todos.splice(idx,1);
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const element1 = e.target.closest('tr');
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element1.parentNode.removeChild(element1);
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console.log(todos);
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});
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console.log(todos);
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});
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});
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</script>
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<table>
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<thead>
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<tr>
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<th class="id">ID</th>
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<th class="comment">コメント</th>
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<th class="remove"></th>
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</tr>
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</thead>
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<tbody id="todoList">
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</tbody>
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</table>
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<h2>リスト表示</h2>
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<input type="text" id="inputContent">
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<button id="addButton">追加</button>
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```
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2
チョウセイ
test
CHANGED
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@@ -10,7 +10,9 @@
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10
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-
となっているのでからの配列をforEachで回して
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となっているのでからの配列をforEachで回してるので何を取りたいのかわかりません。
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（その後pushしているので2回目以降なにか取りたいのでしょうか？）
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1
調整
test
CHANGED
|
@@ -22,7 +22,9 @@
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```javascript
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removeBtn.addEventListener('click', e => {
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-
const element1 = e.target.closest('tr');
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const element1 = e.target.closest('tr');
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```
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