Introduction to Numbro

Welcome to an in-depth guide on numbro, a powerful JavaScript library designed for formatting and manipulating numbers. Whether you need to display currency, percentages, or precise numbers, numbro can handle it all seamlessly. Read on to explore its diverse API and see code snippets demonstrating its capabilities.

Getting Started

 npm install numbro --save

After installation, import numbro in your JavaScript file:

 import numbro from 'numbro';

Basic Number Formatting

Simple number formatting:

 const formattedNumber = numbro(12345.6789).format({ thousandSeparated: true });
 console.log(formattedNumber); // Output: '12,345.679'

Currency Formatting

You can format numbers as currency:

 const currency = numbro(12345.6789).formatCurrency({ thousandSeparated: true, currencySymbol: '$' });
 console.log(currency); // Output: '$12,345.68'

Percentage Formatting

Converting numbers to percentages:

 const percentage = numbro(0.9745).format({ output: 'percent', mantissa: 2 });
 console.log(percentage); // Output: '97.45%'

Byte Sizes

Formatting numbers to represent byte sizes:

 const byteSize = numbro(2048).format({ output: 'byte', mantissa: 3 });
 console.log(byteSize); // Output: '2.000 KiB'

Numeral Systems

Numbro supports several numeral systems including ordinal numbers:

 const ordinal = numbro(1).format({ output: 'ordinal' });
 console.log(ordinal); // Output: '1st'

Utilizing Numbro in Applications

Let’s consider a small application that uses numbro for various use cases:

 import React, { useState } from 'react';
 import numbro from 'numbro';

 function App() {
   const [number, setNumber] = useState(12345.6789);
   return (
     

       
Formatted Numbers using Numbro
       
Original Number: {number}
       
Formatted Number: {numbro(number).format({ thousandSeparated: true })}
       
Currency: {numbro(number).formatCurrency({ thousandSeparated: true, currencySymbol: '$' })}
       
Percentage: {numbro(0.9745).format({ output: 'percent', mantissa: 2 })}
       
Byte Size: {numbro(2048).format({ output: 'byte', mantissa: 3 })}
     
   );
 }

 export default App;

With the simple example above, you can see how easy it is to integrate numbro into your React application to handle different types of number formatting effectively.

Whether you are formatting currency, percentages, or dealing with byte sizes, numbro offers a robust API, making it a go-to library for JavaScript number formatting.

Conclusion

Numbro is an exceptionally versatile library that significantly enhances the way we handle numbers in JavaScript. By providing an intuitive API for formatting, it makes our code cleaner and our interfaces more user-friendly. Give numbro a try in your next project and see the difference it makes.

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