JavaScript ParseFloat() method_javascript skills

Definition and usage of parseFloat() method:

The parseFloat() method can parse a string and return a floating point number.

Note: If the first character in the string cannot be converted into a number, this method returns NaN. If the string contains multiple numbers, only the first number will be returned.

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Grammar structure:

Parameter list:

Example code:

Output result: 123.

Only the first number can be returned. Output result: 123.

The first character cannot be converted to a number. Output result: NaN.

Output result: 12.