Software Development

Find out how to Internationalize Numbers with JavaScript


Presenting numbers in a readable format takes many kinds, from visible charts to easily including punctuation. These punctuation, nevertheless, are completely different primarily based on internationalization. Some international locations use , for decimal, whereas others use .. Anxious about having to code for all this insanity? Do not — JavaScript offers a way do the arduous give you the results you want!

The Quantity primitive has a toLocaleString methodology to do the essential formatting for you:

const value = 16601.91;

// Primary decimal format, no offering locale
// Makes use of locale supplied by browser since none outlined
value.toLocaleString(); // "16,601.91"

// Present a particular locale
value.toLocaleString('de-DE'); // "16.601,91"

// Formatting forex is feasible
value.toLocaleString('de-DE',  
  fashion: 'forex', 
  forex: 'EUR' 
); // "16.601,91 €"

// It's also possible to use Intl.NumberFormat for formatting
new Intl.NumberFormat('en-US', 
  fashion: 'forex',
  forex: 'EUR'
).format(value); // £16,601.91

It is a main reduction that JavaScript offers us these kind of helpers in order that we needn’t depend on bloated third-party libraries. No excuses — the instrument is there!

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