回答編集履歴
1
sample
test
CHANGED
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@@ -7,3 +7,113 @@
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7
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8
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ずれを考えると上への追加はあまり現実的ではないかと思います。
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# sample
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※追加用のテストAPI
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//api.php
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```PHP
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<?PHP
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session_start();
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$_SESSION["num"]=isset($_SESSION["num"])?$_SESSION["num"]+1:0;
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print $_SESSION["num"];
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```
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```javascript
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<style>
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body{
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margin:0;
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}
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.content:not(:first-child){
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border-top:solid 0px;
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}
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.content{
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height:200px;
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border:solid 1px gray;
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}
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</style>
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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window.scroll({top:200});
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});
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window.addEventListener('scroll', ()=>{
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const top=document.body.getBoundingClientRect().top;
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if(top>=0){
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fetch("api.php").then(res=>res.text()).then(txt=>{
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document.body.insertBefore(Object.assign(document.createElement('div'),{className:'content',textContent:txt}),document.querySelector('.content'));
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window.scroll({top:200});
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flg=false;
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});
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}
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});
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</script>
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<div class="content">
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test
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</div>
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<div class="content">
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test
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</div>
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<div class="content">
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102
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test
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</div>
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106
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107
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<div class="content">
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108
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109
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test
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110
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111
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</div>
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112
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113
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<div class="content">
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114
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115
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test
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117
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</div>
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118
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119
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```
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