Separate an integer into two (nearly) equal parts

Question

I need to separate an integer into two numbers. Something like dividing by two but I only want integer components as a result, such as:

6 = 3 and 3 7 = 4 and 3 

I tried the following, but I'm not sure its the best solution.

var number = 7; var part1 = 0; var part2 = 0;  if((number % 2) == 0) {     part1 = number / 2;     part2 = number / 2; } else {     part1 = parseInt((number / 2) + 1);     part2 = parseInt(number / 2); } 

This does what I want, but I don't think this code is clean.

Are there better ways of doing this?

Answer 1

Just find the first part and subtract it from the original number.

var x = 7;    var p1 = Math.floor(x / 2);  var p2 = x - p1;    console.log(p1, p2);

In the case of x being odd, p1 will receive the smaller of the two addends. You can switch this around by calling Math.ceil instead.

Answer 2

Let javascript do Math for you.

var x = 7;  var p1 = Math.ceil(x / 2);  var p2 = Math.floor(x / 2);  console.log(p1, p2);