Javascript decimal precision inside the function has long precision

Asked Apr 03 '17 at 10:22

Active Apr 03 '17 at 12:43

Viewed 22 times

var t = 0.2 + 0.3
console.log(t);

function myFunction() {
  var x = 0.2 + 0.1;
  console.log(x);
}

<button onclick="myFunction()">Try it</button>

Output: 0.5

After clicking button output is: 0.30000000000000004

I'm curious why it behave differently inside the function and outside the function and also why precision is so big?

edited Apr 03 '17 at 12:43

George

asked Apr 03 '17 at 10:22

freeMAN

1

http://0.30000000000000004.com/ – georg Apr 03 '17 at 10:23
This has absolutely nothing to do with whether the code is inside or outside the function. – Sebastian Simon Apr 03 '17 at 10:29

0 Answers0