Math.round() round numbers up not 2 decimals after comma

Question

Here is my code:

Math.round((7/2)).toFixed(2)

this code print: "4.00" while it should print 3.50. Where is a problem? How I can round this value whithout rounding-up?

_The Math.round() function returns the value of a number rounded to the nearest integer._ [`Math.round()`](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Math/round) — Andreas, Apr 10 '15 at 16:37
Why are you rounding at all? `(7/2).toFixed(2)` would yield "3.50". — Blazemonger, Apr 10 '15 at 16:38

score 4 · Accepted Answer · answered Apr 10 '15 at 16:39

No, it should print "4.00", and that's why it is: You've rounded the 3.5 to 4, then called toFixed(2) on 4.

If you want "3.50", then don't round it to a whole number first; toFixed will do rounding to the number of places you ask for (although rounding isn't required at all for 7/2 if you're outputting to two decimal places):

(7/2).toFixed(2)

E.g.:

snippet.log((7/2).toFixed(2));

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Example where toFixed actually does rounding:

snippet.log((1.237).toFixed(2)); // "1.24"

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Math.round() round numbers up not 2 decimals after comma

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