const xs = ['a', 'b', 'c', 'd', 5]
const ys = ['a', 'b', 'c', 'd', 'e']

const xsHasinteger = xs.some(Number.isInteger)
const ysHasinteger = ys.some(Number.isInteger)

console.log(xsHasinteger) // true
console.log(ysHasinteger) // false