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JavaScript JavaScript Foundations Numbers Operators

Posted by gyatmnucla
gyatmnucla
7,618 Points

Why should I use parseInt ?

Hey,

Why should I use parseInt, where I have to also type the radix, when I can use parseFloat all the time ? parseFloat also works for integers...

Did I miss something ?

3 Answers

Fidel Torres
Fidel Torres
25,286 Points
Fidel Torres
Fidel Torres
25,286 Points

This is a case in which parseInt is Usable:

var a = parseInt("021354254.021351, 10");
var b = parseFloat("021354254.021351");

If you want to get the integer part without the fraction;

console output:

console.log(a);  //  21354254
console.log(b); //  21354254.021351

Hope this helps!!!

Șilinca Alexandru
Șilinca Alexandru
9,537 Points
Șilinca Alexandru
Șilinca Alexandru
9,537 Points

In some cases when you want binary numbers and so on ...

gyatmnucla
gyatmnucla
7,618 Points

So only if I want to use the radix property ?

Șilinca Alexandru
Șilinca Alexandru
9,537 Points
Șilinca Alexandru
Șilinca Alexandru
9,537 Points

You can't without parse string. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt