function test2() {
const A = ['a', 'p', 'p', 'l', 'e'];
const B = [1,2,3,4,5];
let res = [];
for(let i = 0; i <= A.length; i++) {
res.push(A[i], B[i]);
}
return res;
}
console.log(test2());
ZnVuY3Rpb24gdGVzdDIoKSB7Cgljb25zdCBBID0gWydhJywgJ3AnLCAncCcsICdsJywgJ2UnXTsKCWNvbnN0IEIgPSBbMSwyLDMsNCw1XTsKCWxldCByZXMgPSBbXTsKCQoJZm9yKGxldCBpID0gMDsgaSA8PSBBLmxlbmd0aDsgaSsrKSB7CgkJcmVzLnB1c2goQVtpXSwgQltpXSk7Cgl9CgkKCXJldHVybiByZXM7Cn0KCmNvbnNvbGUubG9nKHRlc3QyKCkpOw==