What is - - > operator in javascript?

Question

While refactoring I mistakenly put two dash -- before > and the code seems to work without any error. I checked MDN Operators page but could not find a relevant definition. Can you please let me know what is this operator called.

function checkSitOccupancy(n) {
  while (n --> 0)
    console.log(n);
}
checkSitOccupancy(2)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators#Decrement — , Feb 07 '19 at 16:09
`--` and `>` are two separate operators. Space or no space, they are not one operator. — , Feb 07 '19 at 16:09
`n--` means `n=n-1` , then you use the bigger than operator ´>´ afterwards — MikNiller, Feb 07 '19 at 16:09

score 1 · Answer 1 · answered Feb 07 '19 at 16:10

1

while (n-- > 0) means "while decremented value of n is greater than zero"

answered Feb 07 '19 at 16:10

jmargolisvt

5,722
4
29
46

score 0 · Answer 2 · answered Feb 07 '19 at 16:10

0

There is no --> operator. You are just decreasing n and comparing if > 0

answered Feb 07 '19 at 16:10

GabrieleMartini

1,665
2
19
26

score 0 · Answer 3 · answered Feb 07 '19 at 16:10

0

It is the decrement operator.

It decrements the value of n and compares it with a greater than operator

answered Feb 07 '19 at 16:10

Dhananjai Pai

5,914
1
10
25

score -1 · Answer 4 · answered Feb 07 '19 at 16:09

-1

That's the decrement operator, subtraction's analog to ++.

EDIT: In your case above, you've squeezed a decrement and greater than sign together, making them appear to be a single operator; they're not, as javascript doesn't need the white space.

answered Feb 07 '19 at 16:09

ajm

19,795
3
32
37

What is - - > operator in javascript?

4 Answers4