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JavaScript

Posted by Jeannie B.
Jeannie B.
138 Points

How do I display results in box that are unrounded and 4 decimal places?

Here is the line of code that generates the value that is displayed, and i've tried to change the math.round to math.abs that displays more than 4 decimals which is what i really need.

document.numbersAB.school_rate_box.value=Math.round(school_rate*100000)/100

Here is how the input box is coded <input type="text" name="school_rate_box" readonly>

thanks for any advice on this.

1 Answer

Steven Parker
Steven Parker
243,656 Points
Steven Parker
Steven Parker
243,656 Points

You're close. But if you don't want it rounded, use "trunc" instead of "round". And if you don't want to otherwise change the value, multiply and divide by the same value, picked for the precision.

So for 4 digits:

Math.trunc(school_rate * 10000) / 10000

I'm not familiar with this syntax: "document.numbersAB.school_rate_box.value" — how does that address the element?