# Get from one number to another number

#### Tags: javascript

Given a number, say `1.2`, is there a simple way in JavaScript, to get to `-1.5` in steps of `.1`. Or from say `-50.3` to `12.3`.

I’m trying to figure out if there is an easier way of doing this then writing a bunch of complex if statements.

To avoid accumulating floating point inaccuracies (see Is floating point math broken?) it would be best to multiply your numbers by `10` and then use steps of `1`. You can then divide by `10` when generating the results.

Then you just need two `for` loops: one for counting up, the other for counting down.

```function range(start, end) {
start = Math.round(start * 10);
end = Math.round(end * 10);
result = [];
if (start > end) { // counting down
for (let i = start; i >= end; i--) {
result.push(i / 10);
}
} else { // counting up
for (let i = start; i <= end; i++) {
result.push(i / 10);
}
}
return result;
}

console.log(range(1.2, -1.5));
console.log(range(-50.3, 12.3));```

Source: stackoverflow