回答編集履歴
1
調整
test
CHANGED
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@@ -1 +1,45 @@
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1
1
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状況がわかりませんが、新たに追加する要素のonloadで検出すればいいのでは？
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2
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- sample.php（わざと遅延させるサンプル）
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3
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```PHP
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4
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<?PHP
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5
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sleep(3);
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6
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print "content";
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7
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```
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8
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SPAであれば呼び出すfetchなどにロード状況を仕込む
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9
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```javascript
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10
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<script>
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11
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window.addEventListener('DOMContentLoaded', ()=>{
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const url="sample.php";
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btn.addEventListener('click',e=>{
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14
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fetch(url).then(res=>res.text()).then(txt=>{
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15
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container.innerHTML=txt;
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console.log('loaded');
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})
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});
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});
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</script>
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21
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<input type="button" value="load" id="btn">
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<div id="container"></div>
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```
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24
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もしくはcontainerをMutationObserverで監視するとか
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25
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```javascript
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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28
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const url="sample.php";
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29
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const mo = new MutationObserver(n=>{
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30
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console.log('loaded');
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});
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32
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const opt = {
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childList:true,
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};
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35
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mo.observe(container, opt);
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36
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btn.addEventListener('click',e=>{
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37
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fetch(url).then(res=>res.text()).then(txt=>{
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38
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container.innerHTML=txt;
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39
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})
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40
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});
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41
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});
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</script>
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43
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<input type="button" value="load" id="btn">
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44
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<div id="container"></div>
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45
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```
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