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Goでsliceに要素追加, slice同士の結合

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スライスは[]<型>で定義する. 要素の追加はappend

var tasks []string
append(tasks, "todo1")

スライス同士の結合(concat)もappendだが, 第二引数に...を付けるのが妙な感じ.

var tasks_without_due []string
append(tasks, tasks_without_due...)
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機能が向上し, 問題が修正されています
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