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Short Variable Declaration
Sad variable declaration:
var mySkillIssues int
mySkillIssues = 42
GOATed variable declaration:
mySkillIssues := 42
The walrus operator, :=, declares a new variable and assigns a value to it in one line. Go can infer that mySkillIssues is an int because of the 42 value. Yay type inference!
When to Use the Walrus Operator
The :=, (walrus operator) should be used instead of var style declarations basically anywhere possible. The limitation is that := can't be used outside of a function (in the global/package scope which we'll talk about later).
Type inference is based on the value being assigned.
An int:
mySkillIssues := 42
A float64:
pi := 3.14159
A string:
message := "Hello, world!"
A bool:
isGoat := true
Assignment
A common use case for Textio is to send birthday messages.