JS Practice — Built-in Objects

Number.parseFloat() — second decimal point stops parsing

📖 Usage Example

// Parse a string to a floating-point number
Number.parseFloat('3.14')      // → 3.14
Number.parseFloat('3.14abc')   // → 3.14 (stops at first non-numeric)
Number.parseFloat('abc')       // → NaN

Use Number.parseFloat() to convert a string to a decimal number, stopping at the first character that is not part of a valid number.

Number.parseFloat() — Two Decimal Points

'3.14.15' parses as 3.14 — the second decimal point stops parsing.

💡 Hints (1)

• A second decimal point is not valid in a float literal, so parsing stops.