Article Overview:
This article will cover how you can solve the following issue:
How to ensure that floating-point numbers are correctly handled in any Arithmetic operation.
Problem Statement:
You may encounter a scenario where floating-point numbers are passed or stored as strings. When attempting to add/Sub(Any arithmetic ) them together, the result may not be the sum of the two numbers, but instead a concatenation of the two string representations.
Example Problem:
- You have two floating-point values,
1595.57
and198.43
, but they are being handled as strings (e.g.,num1 = "1595.57"
,num2 = "198.43"
). - When attempting to add these numbers, instead of getting the sum
6783.86
, you get the result"1595.572989.862198.43"
, which is a concatenation of the two values as strings.
Solution:
To solve this issue, ensure that the variables are treated as numerical values before performing the addition. This can be done by converting the variables to floating-point numbers using the appropriate type conversion method using extension:
Note: Here we are considering Addition of numbers.
Here's the general approach for resolving this issue:
- Parse the values as floats to ensure they are correctly interpreted as numerical types.
- Perform the addition of the parsed values.
- Return the result as a proper numerical value (not a string).
Extension used for this:
function addFloatNumbers(num1, num2)
{
return parseFloat(num1) + parseFloat(num2);
var result = addFloatNumbers(Num1, Num2);
return result;
}
This extension is meant to:
- Take two inputs (
num1
andnum2
), which could potentially be strings representing floating-point numbers. - Convert these inputs to floating-point numbers using
parseFloat()
. - Add the two floating-point numbers together and return the result.
Outcome:
With the solution in place, performing the addition will yield the correct result. For example, if num1 = "1595.57"
and num2 = "198.43"
, the result will correctly be 6783.86
instead of a concatenated string such as "1595.572989.862198.43"
.
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