[removed] Round to a number of decimal places, but strip extra zeros

Question

Here\'s the scenario: I\'m getting .9999999999999999 when I should be getting 1.0.
I can afford to lose a decimal place of precision, so I\'m u

Answer 1

The toFixed() method formats a number using fixed-point notation, and returns a string.

It applies a half-up rounding strategy.

(0.124).toFixed(2); // returns 0.12
(0.125).toFixed(2); // returns 0.13

As you described, it will indeed also result in (potentially unnecessary) trailing zeroes sometimes.

(0.001).toFixed(2); // returns 0.00

You may not want to get rid of those trailing zeroes, essentially you could just convert it back to a number. There are many ways to do this.

+(0.001).toFixed(2); // the shortest

For an overview, of the different methods to convert strings to numbers, please check this question, which has some excellent answers.