Lately I was playing with google’s new programming language Go and was wondering why the assignment operator
:= has a colon in front of the equal sign
Is there a particular reason why the authors of the language wanted to use
name := "John" instead of
name = "John"?
:= notation serves both as a declaration and as initialization.
foo := "bar"
is equivalent to
var foo = "bar"
Why not using only
foo = "bar" like in any scripting language, you may ask ? Well, that’s to avoid typos.
foo = "bar" fooo = "baz" + foo + "baz" // Oops, is fooo a new variable or did I mean 'foo' ?
Answered By – Fabien
Answer Checked By – Senaida (GoLangFix Volunteer)