回答編集履歴
1
typo修正
answer
CHANGED
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@@ -3,13 +3,13 @@
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3
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this束縛。
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```JavaScript
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6
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-
btn.addEventListener('mousedown', handleMousedown.bind({xz:
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6
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+
btn.addEventListener('mousedown', handleMousedown.bind({xz: 0, yz: 0}), false);
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```
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引数束縛。
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```JavaScript
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12
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-
btn.addEventListener('mousedown', handleMousedown.bind(btn, xz, yz), false);
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12
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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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### handleEvent
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