Menu
How can I check whether a float number contains decimals like 2.10, 2.45, 12382.66 and not 2.00 , 12382.00. I want to know if the number is "round" or not. How can I do that programmatically?
483
function number_test(n) { var result = (n - Math. floor(n)) !== 0; if (result) return 'Number has a decimal place. '; else return 'It is a whole number.
If doing math with floats, you need to add a decimal point, otherwise it will be treated as an int. See the Floating point constants page for details. The float data type has only 6-7 decimal digits of precision. That means the total number of digits, not the number to the right of the decimal point.
Check if the value has a type of number and is not an integer. Check if the value is not NaN . If a value is a number, is not NaN and is not an integer, then it's a float.
Python String isdecimal() The isdecimal() method returns True if all characters in a string are decimal characters. If not, it returns False.
Using modulus will work:
if(num % 1 != 0) do something!
// eg. 23.5 % 1 = 0.5
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
