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I want to make multiplication using JavaScript.
Multiplication of 2 and 0.15 is 0.3 but 3 and 0.15 is 0.44999999999999996. I want to get 0.45 such as result. How can I do it with JavaScript?
546
There is no int or float in JavaScript. Everything is a double . That being said, you're looking for toFixed() if you want to convert your value into a string.
if you multiply double with float variable the result will be double and you won't loose accuracy. However it depends on where the result is saved, if it's saved into a float variable then accuracy is lost.
This is not possible.
The result of the multiplication of a float and an int is a float . Besides that, it will get promoted to double when passing to printf . You need a %a , %e , %f or %g format. The %d format is used to print int types.
It's a rounding error. You may want to round your number to a fixed amount of digits, like this:
parseFloat((your_number).toFixed(2));
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