JS Practice — Built-in Objects

toExponential() — return type is string

📖 Usage Example

// Format number in exponential notation
(12345).toExponential(2)    // → '1.23e+4'
(0.00123).toExponential(1)  // → '1.2e-3'

Use toExponential() to express a number in scientific notation, useful when displaying very large or very small values.

toExponential() Returns a String

The result of toExponential() is always a string, not a number.

💡 Hints (1)