I’m reading this but I’m confused by what is written in the parseInt with a radix argument chapter Why is it that parseInt(8, 3) → NaN and parseInt(16, 3) → 1? AFAIK 8 and 16 are not base-3 numbers, so parseInt(16, 3) should return NaN too 3 Answers 3
Alright, so I was messing around with parseInt to see how it handles values not yet initialized and I stumbled upon this gem. The below happens for any radix 24 or above. parseInt(null, 24) === 23 // evaluates to true I tested it in IE, Chrome and Firefox and they all alert true, so I’m … Read more
I just want to know if there’s a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number). String element = “el5”; String s; s = “”+element.charAt(2); int x = Integer.parseInt(s); //result: x = 5 (useless to say that it’s … Read more
How is parseInt() different from valueOf() ? They appear to do exactly the same thing to me (also goes for parseFloat(), parseDouble(), parseLong() etc, how are they different from Long.valueOf(string) ? Also, which one of these is preferable and used more often by convention? 1Best Answer 11
I have an annoying problem in JavaScript. > parseInt(1 / 0, 19) > 18 Why does the parseInt function return 18? 4 s 4
You could assign value of n as 0 or any other value by default and use if(args.length > 0) { to check whether any arguments is given. Below is full example with comments: public class Infinity { public static void main(String args[]) { /* Start by assigning your default value to n, here it is 0 If valid argument is not … Read more
