How Can I Format Numbers as Currency Strings in JavaScript?
Dec 24, 2024 am 11:26 AM
Formatting Numbers as Currency Strings in JavaScript
To format a price in JavaScript as a currency string, such as "$ 2,500.00", you can utilize the Intl.NumberFormat function provided by the Internationalization API.
Implementation:
- Initialize the Number Formatter:
const formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
});
- 'en-US' specifies the locale as English (United States).
- 'style' sets the formatting style as 'currency'.
- 'currency' denotes the currency code, such as 'USD' for US dollars.
- Apply the Formatting:
const formattedPrice = formatter.format(amount);
- 'amount' represents the floating-point value to be formatted.
- 'formattedPrice' returns the formatted currency string.
Customization Options:
You can further customize the formatting by utilizing additional parameters, such as:
- minimumFractionDigits: Specify the minimum number of decimal places to display (e.g., minimumFractionDigits: 0 for whole numbers only).
- maximumFractionDigits: Specify the maximum number of decimal places to display (e.g., maximumFractionDigits: 2 for two decimal places).
- trailingZeroDisplay: Control the display of trailing zeros (e.g., 'stripIfInteger' to remove zeros when the input is a whole number).
By leveraging Intl.NumberFormat, you can easily format numbers as currency strings in a locale-aware manner.
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