const data = [ ...new Array(1000) ] .map(() = Math.random() 0.5 ? (Math.random() + '').slice(4, 6) : 'shrug')

Question

const data = [ ...new Array(1000) ] .map(() => Math.random() > 0.5 ? (Math.random() + '').slice(4, 6) : 'shrug')

Answer

data.filter(x => !isNaN(parseInt(x)))

Answer

data.filter(x => x < 0 || x > 0)

Answer

data.filter((x) => !isNaN(x))

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