Limit the amount of number shown after a decimal place in javascript

Question

Hay, i have some floats like these

4.3455
2.768
3.67

and i want to display them like this

4.34
2.76
3.67

Answer 1

As T.J answered, the toFixed method will do the appropriate rounding if necessary. It will also add trailing zeroes, which is not always ideal.

(4.55555).toFixed(2);
//-> "4.56"

(4).toFixed(2);
//-> "4.00"

If you cast the return value to a number, those trailing zeroes will be dropped. This is a simpler approach than doing your own rounding or truncation math.

+parseFloat((4.55555).toFixed(2));
//-> 4.56

+parseFloat((4).toFixed(2));
//-> 4