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【JS】初期値を設定した要素数n個のArrayを生成する

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Last updated at Posted at 2020-12-12

fill を使うとよいです。
例えば、要素数12で全て0を設定したArrayを生成するには以下のようにします。


> Array(12).fill(0)
  => [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

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