回答編集履歴
1
ちょうせい
answer
CHANGED
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@@ -1,3 +1,3 @@
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1
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-
push自体の戻り
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1
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+
push自体の戻り値は新しい配列の長さです
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2
2
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3
3
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[Array.prototype.push()](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/push)
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