[Swift] [Beginner]] About range operators

Encounter with range operator

I recently had an app I wanted to make and started studying swift, and the teaching materials explained the following about operators.

• Arithmetic operators: +,-, *, / etc. (I often use this)
• Substitution operator: = (This is also required)
• Comparison operator: ==,! =, <,> Etc. (Maybe the most used level) +Logical operation:!,&&,||(I think it was written like this even in java)
• Range operator: ..., .. <(!?)

I've been working for about 4 years and experienced various languages, but honestly I was surprised because I had never used or heard of it. ~~ Just lack of knowledge ~~

How to use the range operator

It seems that swift is used like this ↓

sample.swift

var total = 0
for count in 0...5 {
  total += count
}
print(total)

As the name suggests, it is an operator that indicates a range. In this case, 0 to 5 are added and displayed. When I looked it up, swift couldn't write java or objective-c-like for statements from swift3.0, so I'd like to see it unless I write it with for-in. Reference article

Conclusion

You have to be able to use it ... ~~ (← range operator) ~~