Merge array of array into one

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Thu Jul 09 2020 11:26:41 GMT+0000 (Coordinated Universal Time)

const x = [
    [
        1, 2, 3
    ],
    [
        5, 6, 7
    ],
    [
        'a','b'
    ]
]
const y = [].concat(...x)

console.log(y)

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Merge array of array into one

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