回答編集履歴
3
chousei
test
CHANGED
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@@ -60,20 +60,21 @@
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60
60
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<li class="list_item" data-university='["tokyo","kyoto","osaka"]'>東京,京都,大阪</li>
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61
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</ul>
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62
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```
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63
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+
# ３つ以上
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63
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-
条件が２つある場合
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64
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（条件が２つある場合は省略）
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65
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+
datasetの要素をリストで宣言してしまえばいくつでもいけそうです
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64
66
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```javascript
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<script>
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document.addEventListener('change',e=>{
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const t=e.target;
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70
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const list=["university","major","graduate"];
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68
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-
if(t.closest(
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71
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if(t.closest(list.map(x=>`[name=${x}]`).join(','))){
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69
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-
const
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72
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const selected={};
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70
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-
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list.forEach(x=>selected[x]=[...document.querySelectorAll(`[name=${x}]:checked`)].map(x=>x.value));
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document.querySelectorAll('.list_item').forEach(x=>{
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let flg=false;
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if(
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if(Object.values(selected).flat().length>0){
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flg=true &&
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-
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flg=list.map(y=>selected[y].length==0||JSON.parse(x.dataset[y]).filter(z=>selected[y].indexOf(z)>=0).length).reduce((x,y)=>x&&y);
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76
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(majo.length==0 || JSON.parse(x.dataset.major).filter(y=>majo.indexOf(y)>=0).length)
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}
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x.toggleAttribute('hidden',!flg);
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});
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@@ -101,9 +102,60 @@
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<li><label><input type="checkbox" name="major" value="law">法学部</label></li>
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</ul>
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<hr>
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104
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-
<ul
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105
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<ul>
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105
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<li
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106
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<li><label><input type="checkbox" name="graduate" value="goSame">院進(同大学)</label></li>
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106
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<li
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107
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<li><label><input type="checkbox" name="graduate" value="goDiffe">院進(他大学)</label></li>
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108
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<li><label><input type="checkbox" name="graduate" value="work">就職</label></li>
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<li
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<li><label><input type="checkbox" name="graduate" value="establish">起業</label></li>
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<hr>
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<ul class="list">
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<li class="list_item"
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data-university='["tokyo","kyoto"]'
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data-major='["science","engineering"]'
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115
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data-graduate='["goSame","goDiffe"]'
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>国公立理系院進学費: xx万円
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</li>
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<li class="list_item"
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data-university='["tokyo","kyoto"]'
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data-major='["science","engineering"]'
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data-graduate='["work","establish"]'
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>国公立理系就職学費: xx万円
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</li>
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<li class="list_item"
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data-university='["tokyo","kyoto"]'
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data-major='["letters","law"]'
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data-graduate='["goSame","goDiffe"]'
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>国公立文系院進学費: xx万円
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</li>
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<li class="list_item"
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data-university='["tokyo","kyoto"]'
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data-major='["letters","law"]'
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data-graduate='["work","establish"]'
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>国公立文系就職学費: xx万円
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</li>
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<li class="list_item"
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data-university='["keio","waseda"]'
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data-major='["science","engineering"]'
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data-graduate='["goSame","goDiffe"]'
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>私立理系院進学費: xx万円
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</li>
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<li class="list_item"
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data-university='["keio","waseda"]'
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data-major='["science","engineering"]'
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data-graduate='["work","establish"]'
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146
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>私立理系就職学費: xx万円
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</li>
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<li class="list_item"
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data-university='["keio","waseda"]'
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data-major='["letters","law"]'
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data-graduate='["goSame","goDiffe"]'
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152
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>私立文系院進学費: xx万円
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153
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</li>
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154
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<li class="list_item"
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data-university='["keio","waseda"]'
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156
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data-major='["letters","law"]'
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157
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data-graduate='["work","establish"]'
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158
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>私立文系就職学費: xx万円
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159
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</li>
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108
160
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</ul>
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109
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-
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161
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+
```
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2
調整
test
CHANGED
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@@ -60,3 +60,50 @@
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60
60
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<li class="list_item" data-university='["tokyo","kyoto","osaka"]'>東京,京都,大阪</li>
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61
61
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</ul>
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62
62
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```
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|
63
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+
条件が２つある場合
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|
64
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+
```javascript
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65
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+
<script>
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66
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+
document.addEventListener('change',e=>{
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67
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+
const t=e.target;
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68
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if(t.closest('[name=university],[name=major]')){
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69
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const univ=[...document.querySelectorAll('[name=university]:checked')].map(x=>x.value);
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70
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const majo=[...document.querySelectorAll('[name=major]:checked')].map(x=>x.value);
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71
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document.querySelectorAll('.list_item').forEach(x=>{
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72
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let flg=false;
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73
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if(univ.length>0 || majo.length>0){
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74
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flg=true &&
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75
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(univ.length==0 || JSON.parse(x.dataset.university).filter(y=>univ.indexOf(y)>=0).length) &&
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76
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(majo.length==0 || JSON.parse(x.dataset.major).filter(y=>majo.indexOf(y)>=0).length)
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77
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}
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x.toggleAttribute('hidden',!flg);
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79
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});
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80
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}
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});
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window.addEventListener('DOMContentLoaded', ()=>{
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const e = new CustomEvent("HTMLEvents");
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e.initEvent('change', true, true );
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85
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document.querySelector('[name=university]').dispatchEvent(e);
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86
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});
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87
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</script>
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88
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<form>
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89
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<ul>
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90
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<li>
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91
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<label><input type="checkbox" name="university" value="tokyo">東京大学</label></li>
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92
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<li><label><input type="checkbox" name="university" value="kyoto">京都大学</label></li>
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93
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<li><label><input type="checkbox" name="university" value="keio">慶應大学</label></li>
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94
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<li><label><input type="checkbox" name="university" value="waseda">早稲田大学</label></li>
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95
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</ul>
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96
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<hr>
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97
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<ul>
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98
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<li><label><input type="checkbox" name="major" value="science">理学部</label></li>
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99
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<li><label><input type="checkbox" name="major" value="engineering">工学部</label></li>
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100
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<li><label><input type="checkbox" name="major" value="letters">文学部</label></li>
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101
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<li><label><input type="checkbox" name="major" value="law">法学部</label></li>
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102
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</ul>
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103
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+
<hr>
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104
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+
<ul class="list"><li class="list_item" data-university='["tokyo","kyoto"]' data-major='["science","engineering"]'>国公立理系学費: xx万円</li>
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105
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+
<li class="list_item" data-university='["tokyo","kyoto"]' data-major='["letters","law"]'>国公立文系学費: xx万円</li>
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106
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+
<li class="list_item" data-university='["keio","waseda"]' data-major='["science","engineering"]'>私立理系学費: xx万円</li>
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107
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+
<li class="list_item" data-university='["keio","waseda"]' data-major='["letters","law"]'>私立文系学費: xx万円</li>
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108
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+
</ul>
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109
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+
｀｀｀
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1
追記
test
CHANGED
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@@ -27,5 +27,36 @@
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27
27
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<li class="list_item" data-university='["tokyo","osaka"]'>東京,大阪</li>
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28
28
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<li class="list_item" data-university='["tokyo","kyoto","osaka"]'>東京,京都,大阪</li>
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29
29
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</ul>
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30
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-
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31
30
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```
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31
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+
生のjsならこう？
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32
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```javascript
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33
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<script>
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34
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document.addEventListener('change',e=>{
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35
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const t=e.target;
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36
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if(t.closest('.university')){
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37
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const vals=[...document.querySelectorAll('.university:checked')].map(x=>x.value);
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38
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document.querySelectorAll('.list_item').forEach(x=>{
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39
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const flg=JSON.parse(x.dataset.university).filter(y=>vals.indexOf(y)>=0).length;
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40
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x.toggleAttribute('hidden',!flg);
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41
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});
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42
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}
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43
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});
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44
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window.addEventListener('DOMContentLoaded', ()=>{
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45
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const e = new CustomEvent("HTMLEvents");
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46
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e.initEvent('change', true, true );
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47
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document.querySelector('.university').dispatchEvent(e);
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48
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});
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49
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</script>
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50
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<label><input type="checkbox" class="university" value="tokyo">東京</lavel>
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51
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<label><input type="checkbox" class="university" value="kyoto">京都</lavel>
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52
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<label><input type="checkbox" class="university" value="osaka">大阪</lavel>
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53
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<ul>
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54
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<li class="list_item" data-university='["tokyo"]'>東京</li>
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55
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<li class="list_item" data-university='["kyoto"]'>京都</li>
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56
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<li class="list_item" data-university='["osaka"]'>大阪</li>
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57
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+
<li class="list_item" data-university='["tokyo","kyoto"]'>東京,京都</li>
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58
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<li class="list_item" data-university='["kyoto","osaka"]'>京都,大阪</li>
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59
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+
<li class="list_item" data-university='["tokyo","osaka"]'>東京,大阪</li>
|
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60
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+
<li class="list_item" data-university='["tokyo","kyoto","osaka"]'>東京,京都,大阪</li>
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61
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+
</ul>
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62
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+
```
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