配列の型指定const example1: string[] = ['Hello World']; const example2: (number | boolean)[] = [1, 2, true]; const example3: boolean[][] = [ [true, false] ] ; |
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配列の型指定const example1: string[] = ['Hello World']; const example2: (number | boolean)[] = [1, 2, true]; const example3: boolean[][] = [ [true, false] ] ; |
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