# I want to make a video about strings in Nim. I also want to explain some
# details. Could you please check if the following is correct?

# "In Nim, the string data type is a value type, thus it has value semantics.
# It means that when you use the '=' (assignment) operator, you make a copy of it,
# and when you use the '==' operator, you compare the two strings by their
# content.

# However, under the hood, on the implementation level, a string uses a reference
# (pointer).

let s = "nim"

# Here, `s` is a reference (pointer) stored on the stack, and the value "nim" is
# stored on
# the heap.

# But, this is just an implementation detail. What matters is how it behaves, and
# strings
# have value semantics. Example:

var a = "test"
var b = a

# Here, `b` will point on a copy of the string "test".

a.add("2")

echo a  # test2
echo b  # test
# "