Issue
I have tried this but I thought switch is also a conditional statement
function cal(n){
switch(n){
case 5:
return 9;
break;
case 9:
return 5;
break;
}
}
Solution
This can be done with bitwise XOR ^
function fn(n) {
return n ^ 0b1100;
}
console.log(fn(5));
console.log(fn(9));
a | b | a XOR b |
---|---|---|
0 | 0 | 0 |
1 | 0 | 1 |
0 | 1 | 1 |
1 | 1 | 0 |
The number 5 in decimal is 101 in binary, which means that
101
XOR 1101
--------
1001 = (9 decimal)
The number 9 in decimal is 1001 in binary, which means that
1001
XOR 1101
--------
0101 = (5 decimal)
0b1100
itself is just a numeric literal expressed in binary. It is equal to 12 in decimal, so n ^ 12
will work exactly the same way.
Answered By - VLAZ Answer Checked By - David Goodson (PHPFixing Volunteer)
0 Comments:
Post a Comment
Note: Only a member of this blog may post a comment.