Returns an integer converted from a string.
Required. A string to convert into a number.
Optional. A value between 2 and 36 indicating the base of the number contained in numString. If not supplied, strings with a prefix of '0x' are considered hexadecimal and strings with a prefix of '0' are considered octal. All other strings are considered decimal.
In following example, the parseInt method is used to convert two strings to numbers.
parseInt("abc") // Returns NaN. parseInt("12abc") // Returns 12.