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limit the exponential notation decimal place to 4 in javascript

How to limit the decimal place to 4 in javascript with this type of values? the e is the exponent since I am using power of ten values. toFixed() doesn't seem to work.

1.0531436913408342e-7
-5.265718456704172e-7
8.425149530726674e7
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philip Avatar asked Sep 01 '11 11:09

philip


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How do I limit decimal places in JavaScript?

The toFixed() method rounds the string to a specified number of decimals.

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The exponentiation operator ( ** ) returns the result of raising the first operand to the power of the second operand. It is equivalent to Math. pow() , except it also accepts BigInts as operands.

How do I round to 2 decimal places in JavaScript?

Use the toFixed() method to round a number to 2 decimal places, e.g. const result = num. toFixed(2) . The toFixed method will round and format the number to 2 decimal places.

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2 Answers

Try:

   Math.round(val*10000)/10000
like image 56
Mikko Ohtamaa Avatar answered Sep 28 '22 11:09

Mikko Ohtamaa


Try this method: value.toPrecision(1 + 4) for 4 decimal digits.

like image 33
Jiri Kriz Avatar answered Sep 28 '22 12:09

Jiri Kriz