In JavaScript, there are a number of functions that are used to get integers. One such function is ParseInt(), which can be used to obtain an integer from a string.
In this shot, we’ll learn how to use ParseInt() functions to get an integer.
parseInt() functionThe parseInt() is a JavaScript function that parses a string and returns an integer.
const getInteger = console.log(parseInt("007"));
The code above converts a string, “007” into an interger, 7.
If the first character in the string is a letter, it cannot be converted to an integer, and the function will return NaN or null.
const getInteger = console.log(parseInt("M007"));
The ParseInt() function takes radix as the second argument, which represents the base of string and converts an integer into a decimal. ‘Radix’ can be an integer with the range, 2–36.
const getInteger = console.log(parseInt("31021", 4));