Presenting numbers in a readable format takes many forms, from visual charts to simply adding punctuation. Those punctuation, however, are different based on internationalization. Some countries use , for decimal, while others use .. Worried about having to code for all this madness? Don’t — JavaScript provides a method do the hard work for you!
The Number primitive has a toLocaleString method to do the basic formatting for you:
const price = 16601.91;
// Basic decimal format, no providing locale
// Uses locale provided by browser since none defined
price.toLocaleString(); // "16,601.91"
// Provide a specific locale
price.toLocaleString('de-DE'); // "16.601,91"
// Formatting currency is possible
price.toLocaleString('de-DE', {
style: 'currency',
currency: 'EUR'
}); // "16.601,91 €"
// You can also use Intl.NumberFormat for formatting
new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'GBP'
}).format(price); // £16,601.91
It’s a major relief that JavaScript provides us these type of helpers so that we don’t need to rely on bloated third-party libraries. No excuses — the tool is there!
Responsive and Infinitely Scalable JS Animations
Back in late 2012 it was not easy to find open source projects using
requestAnimationFrame()– this is the hook that allows Javascript code to synchronize with a web browser’s native paint loop. Animations using this method can run at 60 fps and deliver fantastic…
Face Detection with jQuery
I’ve always been intrigued by recognition software because I cannot imagine the logic that goes into all of the algorithms. Whether it’s voice, face, or other types of detection, people look and sound so different, pictures are shot differently, and from different angles, I…
:valid, :invalid, and :required CSS Pseudo Classes
Let’s be honest, form validation with JavaScript can be a real bitch. On a real basic level, however, it’s not that bad. HTML5 has jumped in to some extent, providing a few attributes to allow us to mark fields as required or only valid if matching…
Source_link
