Parse Functions

parseInt()

The parseInt(string [, radix]) function parses a string and returns an integer.

The radix parameter specifies which numeral system is to be used, for example, a radix of 16 (hexadecimal) indicates that the number in the string should be parsed from a hexadecimal number to a decimal number.

If the radix parameter is omitted, JavaScript assumes the following:

• If the string begins with 0x, the radix is 16 (hexadecimal).
• If the string begins with 0, the radix is 8 (octal). This feature is deprecated.
• If the string begins with any other value, the radix is 10 (decimal).

parseFloat()

The parseFloat() function parses a string and returns a floating point decimal number.

This function determines if the first character in the specified string is a number. If it is, it parses the string until it reaches the end of the number, and returns the number as a number, not as a string.