The sections below include the coding conventions with respect to operators, keywords, and types.
Keywords and Types
- Do not keep spaces between the type and the pipe operator when it is in a union type (e.g.,
string|int
).
Example,
type method "POST"|"GET"|"PUT"; int|string variable = 0; function getValue(string key) returns string|error { ... } function getName() returns string|error { string|error valueOrError = getValue("name"); ... }
- Do not keep spaces between the type and the optional operator
?
.
Example,
string? name;
- Avoid line breaks inside constrained types.
Do's
map<int|string> x; // map reference type
Don'ts
map< int | string > x;
Operators
- Keep only a single space before and after the
=
operator.
Example,
int a = 0;
- Do not keep spaces around the semicolon
;
. - Do not keep spaces between the unary operator and the expression.
Example,
a = -a;
- Keep a single space before and after any
binary
orternary
operator.
Example,
var fullName = firstName + lastName; string? name = isNameAvailable() ? getName() : "Unknown"; var elvisOperator = name ?: "Unknown";
- Keep a single space before and after a compound operator such as
-=
and+=
.
Example,
name += lastName;
"Star"
"Watch"
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