回答編集履歴
1
typo修正
test
CHANGED
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@@ -8,7 +8,7 @@
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```JavaScript
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btn.addEventListener('mousedown', handleMousedown.bind({xz:
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btn.addEventListener('mousedown', handleMousedown.bind({xz: 0, yz: 0}), false);
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```
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@@ -20,7 +20,7 @@
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```JavaScript
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btn.addEventListener('mousedown', handleMousedown.bind(btn, xz, yz), false);
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btn.addEventListener('mousedown', handleMousedown.bind(btn, xz, yz), false); // 既存の引数は後ろに追い出される(eventは第三引数となる
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```
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