回答編集履歴
1
追記
answer
CHANGED
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@@ -14,4 +14,15 @@
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14
14
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function fontawesomeChange( element, changeClassName ) {
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15
15
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element.classList.toggle(changeClassName);
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16
16
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}
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17
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+
```
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18
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+
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19
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+
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20
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+
1回きりなら、引数追加して
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21
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+
```HTML
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22
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+
<i class="fab fa-twitter" onclick="fontawesomeChange( this, 'fa-twitter', 'fa-twitter-square' )"></i>
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23
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+
```
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24
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+
```JavaScript
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25
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+
function fontawesomeChange( element, oldClassName, changeClassName ) {
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26
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+
element.classList.replace( oldClassName, changeClassName );
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27
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+
}
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17
28
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```
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