JS Practice — Built-in Objects

toLocaleString() — 1.5 includes 1

📖 Usage Example

// Format number for the user's locale
const n = 1234567.89
n.toLocaleString()          // → '1,234,567.89' (en-US)
n.toLocaleString('de-DE')   // → '1.234.567,89'

Use toLocaleString() to format a number as a locale-appropriate string, such as adding thousands separators or currency symbols.

toLocaleString() — Decimals

(1.5).toLocaleString() includes the digit '1'.

💡 Hints (1)

• The formatted string always contains the leading digits of the number.