JS Practice — Built-in Objects

toPrecision() — return type is string

📖 Usage Example

// Format number to a specified precision
(123.456).toPrecision(5)    // → '123.46'
(0.000123).toPrecision(2)   // → '0.00012'

Use toPrecision() to format a number to a total number of significant digits, which is useful in scientific or measurement contexts.

toPrecision() Returns a String

💡 Hints (1)

• `toPrecision` returns a string — parse it with `parseFloat` if you need arithmetic.