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JavaScript JavaScript Array Iteration Methods Array Manipulation Transform Array Items with map()

Tim Strand
Tim Strand
22,458 Points
Posted by Tim Strand
Tim Strand
22,458 Points

Why use toFixed instead of toLocaleString?

is there a good case to be made for using toFixed over toLocaleString for creating a currency string? it seems like using toLocaleString has more versatility for different denominations etc even if the logic is more burdensome initially.

const prices = [5, 4.23, 6.4, 8.09, 3.20];

// Result: [ '$5.00', '$4.23', '$6.40', '$8.09', '$3.20' ]

const displayPrices = prices.map(price => parseFloat(price).toLocaleString('en-US', {style: 'currency', currency: 'USD', currencyDisplay: 'symbol', minimumFractionDigits: 2, maximumFractionDigits: 2});

1 Answer

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

If your application is intended for multiple currencies, then toLocaleString is clearly the better choice.