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GlobalFunctionsparseFloatbeginner

parseFloat — non-numeric string returns NaN

📖 Usage Example
parseFloat('abc')          // → NaN
isNaN(parseFloat('abc'))   // → true

parseFloat() returns NaN when the string cannot be converted to a number.

parseFloat NaN

parseFloat('abc') returns NaN.

Challenge: Verify that isNaN(parseFloat('abc')) is true.

💡 Hints (1)
  • • NaN is returned when a string cannot be converted to a number.