Modifying Regular Expression to eliminate trailing decimal points and zeroes when there is no fractional value present

Currently, I am in the process of learning Regex and experimenting with it. One thing I'm working on is creating a function that parses a float number while limiting the number of decimal places. My goal is to only allow a maximum of two decimal points, and remove any unnecessary zeros after the decimal (e.g. changing X.00 to just X). Here's the code snippet I have:

price_var.toFixed(2).replace(/0{0,2}$/, "");

Although this code effectively removes the extra zeros, it does not eliminate the decimal point when there are no fractions. Is there a method to achieve this as well?

Answer №1

Adjust the decimal points precision to two and remove any trailing zeros after the decimal point: 

If you want to ensure a fixed number of decimal points:

price_var.toFixed(2).replace(/\.0{2}$/, ""); 

Alternatively, you can also use:

price_var.toFixed(2).replace(/\.00$/, ""); 

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