回答編集履歴
3
ちょうせい
test
CHANGED
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@@ -81,3 +81,95 @@
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</table>
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```
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# 上限あり
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```javascript
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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const max=3;
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const sub=document.querySelector('#sub');
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document.querySelector('#btn').addEventListener('click',()=>{
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if(sub.value=="notselect"){
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alert('not selected!');
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}else if([...document.querySelectorAll('#sublist tbody td')].map(x=>x.textContent).includes(sub.value)){
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alert('already exists');
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}else if([...document.querySelectorAll('#sublist tbody td')].length>=max){
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alert(`can't regist anymore`);
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}else{
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document.querySelector('#sublist tbody').appendChild(
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[Object.assign(document.createElement('td'),{textContent:sub.value})].reduce((x,y)=>{
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x.appendChild(y);
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return x;
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},document.createElement('tr'))
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);
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}
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});
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});
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</script>
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<select id="sub">
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<option value="notselect"></option>
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<option value="01302年現代文Ba・月3水1">0130 2年現代文Ba・月3水1</option>
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<option value="01312年現代文Bb・月4水2">0131 2年現代文Bb・月4水2</option>
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<option value="01322年現代文Bc・月4金1">0132 2年現代文Bc・月4金1</option>
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<option value="01332年現代文Bd・火2木2">0133 2年現代文Bd・火2木2</option>
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<option value="01342年現代文Be・火4木2">0134 2年現代文Be・火4木2</option>
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<option value="01352年現代文Bf・水1木4">0135 2年現代文Bf・水1木4</option>
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<option value="01362年現代文Bg・水2金1">0136 2年現代文Bg・水2金1</option>
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</select>
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<button id="btn">追加</button>
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<table border="1" id="sublist">
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<thead>
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<tr>
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<th>科目リスト</th>
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</tr>
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</thead>
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<tbody>
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</tbody>
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</table>
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```
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2
chousei
test
CHANGED
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@@ -81,135 +81,3 @@
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</table>
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```
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# 調整版
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```jaascript
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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const s1=document.querySelector('#s1');
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const s2=s1.cloneNode(true);
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const p=s1.parentNode;
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s2.setAttribute('id','s2');
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s2.querySelectorAll('.hide').forEach(x=>x.remove());
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document.querySelector('#color').addEventListener('change',()=>{
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if([...p.children].includes(s1)){
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p.insertBefore(s2,s1);
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s1.remove();
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}else{
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p.insertBefore(s1,s2);
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s2.remove();
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}
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});
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document.addEventListener('change',()=>{
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const color=document.querySelector('#s1,#s2').value;
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document.querySelectorAll('.s1_select').forEach(x=>{
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x.style.display='none';
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x.querySelector('select').disabled=true;
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});
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document.querySelector('#'+color).style.display='';
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document.querySelector('#'+color+" select").disabled=false;
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;
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});
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});
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</script>
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<label><input type="checkbox" id="color" name="color"> カラー</label>
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<label>
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<select id="s1">
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<option value="white" class="hide">白</option>
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<option value="red">赤</option>
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<option value="black" class="hide">黒</option>
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</select>
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</label>
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<div class="s1_select" id="white">
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<label>
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<select>
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<option value="white1">WHITE1</option>
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<option value="white2">WHITE2</option>
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</select>
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</label>
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</div>
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<div class="s1_select" id="red" style="display:none">
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<label>
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<select disabled>
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<option value="red1">RED1</option>
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<option value="red2">RED2</option>
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</select>
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</label>
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</div>
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<div class="s1_select" id="black" style="display:none">
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<label>
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<select disabled>
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<option value="black1">BLACK1</option>
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<option value="black2">BLACK2</option>
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</select>
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</label>
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</div>
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```
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1
chousei
test
CHANGED
|
@@ -81,3 +81,135 @@
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81
81
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</table>
|
|
82
82
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|
|
83
83
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```
|
|
84
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+
|
|
85
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+
# 調整版
|
|
86
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+
|
|
87
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+
```jaascript
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88
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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const s1=document.querySelector('#s1');
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const s2=s1.cloneNode(true);
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const p=s1.parentNode;
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s2.setAttribute('id','s2');
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s2.querySelectorAll('.hide').forEach(x=>x.remove());
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document.querySelector('#color').addEventListener('change',()=>{
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if([...p.children].includes(s1)){
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p.insertBefore(s2,s1);
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s1.remove();
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}else{
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p.insertBefore(s1,s2);
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s2.remove();
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}
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});
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document.addEventListener('change',()=>{
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const color=document.querySelector('#s1,#s2').value;
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document.querySelectorAll('.s1_select').forEach(x=>{
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x.style.display='none';
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x.querySelector('select').disabled=true;
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});
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document.querySelector('#'+color).style.display='';
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document.querySelector('#'+color+" select").disabled=false;
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;
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});
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});
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</script>
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<label><input type="checkbox" id="color" name="color"> カラー</label>
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<label>
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<select id="s1">
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<option value="white" class="hide">白</option>
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<option value="red">赤</option>
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<option value="black" class="hide">黒</option>
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</select>
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</label>
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<div class="s1_select" id="white">
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<label>
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<select>
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<option value="white1">WHITE1</option>
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<option value="white2">WHITE2</option>
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</select>
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</label>
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</div>
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<div class="s1_select" id="red" style="display:none">
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<label>
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<select disabled>
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<option value="red1">RED1</option>
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<option value="red2">RED2</option>
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</select>
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</label>
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</div>
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<div class="s1_select" id="black" style="display:none">
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<label>
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<select disabled>
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<option value="black1">BLACK1</option>
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<option value="black2">BLACK2</option>
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</select>
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</label>
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</div>
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```
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