The calculateTax
function is a utility function designed to calculate tax and total amounts based on input parameters. This function returns a promise that resolves to an object containing the total amount and tax amount.
const calculateTax = (prop1, prop2, profile) => {
// Function body
}
-
prop1
: An object that may contain asubTotal
property to be used as the base amount. -
prop2
: An object that may contain atax
property to determine the tax rate. -
profile
: An object representing the user's profile information.
-
The
baseAmount
is determined based on the providedprop1
object:- If
prop1.subTotal
exists and is notundefined
, it is checked whether it is a string. If it is a string, it is converted to a numeric value by removing commas. If it is not a string, it is used as-is. Ifprop1.subTotal
isundefined
, the base amount is set to 0.
- If
-
The tax rate (
tax
) is determined based on the providedprop2
object and the user'sprofile
:- If
prop2.tax
is 0, the function uses the tax rate from the user's profile (profile.taxType.tax
). Ifprop2.tax
is not 0, it is used as the tax rate.
- If
-
The tax amount is calculated by multiplying the
baseAmount
by the tax rate and dividing it by 100. -
The total amount is calculated by adding the
baseAmount
and the tax amount. -
The function returns a promise that resolves to an object containing:
-
totalAmount
: The total amount after applying tax, represented as a float. -
taxAmount
: The tax amount, represented as a float.
-
import calculateTax from './calculateTax';
// Sample input parameters
const prop1 = { subTotal: '1000,00' }; // Base amount with commas
const prop2 = { tax: 5 }; // Tax rate
const profile = { taxType: { tax: 8 } }; // User's profile
// Calculate tax and total amounts using the calculateTax function
calculateTax(prop1, prop2, profile)
.then(result => {
console.log(`Total Amount: $${result.totalAmount.toFixed(2)}`);
console.log(`Tax Amount: $${result.taxAmount.toFixed(2)}`);
});
- The source code for this function is available in the calculateTax GitHub repository.
-
This function allows for flexible tax and total amount calculations based on input parameters, providing versatility for different scenarios.
-
It can be used in applications requiring tax calculations for financial transactions.
This Markdown documentation provides a detailed explanation of the calculateTax
function, its parameters, and how it performs tax and total amount calculations. It also includes a usage example and a link to the GitHub repository for reference.