1function isEven(n) {
2   return n % 2 == 0;
3}
4
5function isOdd(n) {
6   return Math.abs(n % 2) == 1;
7}

1for(let count =0; count<=100;count++){
2 count%2==0? console.log(`${count} is even`):console.log(`${count} is odd`);
3 ;
4}

1const OddorEven = (num)=>num&1?"odd":"even";

1let isEven = (n) => !(n&1);