parseint (number)

Updated on 23 May 2023

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parseInt Task Purpose

The parseInt task parses a string value and returns an integer (number) value using the decimal number system as a mathematical base. Only the first number in the string is returned. If the string argument is not a string, then it is converted to a string (using the ToString abstract operation). Leading whitespaces in the string are ignored.

Potential Use Case

This task is useful when you need to convert a number represented as a string into an integer. Let's say your data string contains a decimal value such as "1.655". With parseInt, the decimal value will convert to the rounded number '1', and the digits that follow the decimal will be truncated.

Properties

Input and output properties are shown below.

Input	Type	Description
`str`	String	Required. The string value to parse and return as a number.
`radix`	Number	Optional. Represents the numerical system used to convert `str` to an integer. This can be a value between 2 and 36. Note: If no radix is provided, the default will be 10 (decimal).

Output	Type	Description
`result`	Number	The number that returns when the input `str` is parsed. If the first character cannot be converted to a number, the `result` returns NaN.