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Haxe Complete Course / Type System

Type parameters constraints

Learn Type parameters constraints in Haxe through the exact construct, a dedicated example, a boundary case, and a mastery check.

12 min read • Intermediate

Type parameters constraints is an atomic Haxe lesson inside Type System. The example uses the specific syntax, command, API, instruction, or language rule named by this lesson.

Study the construct itself, then change one relevant input and predict the result before running it. That keeps this lesson focused on Type parameters constraints rather than on generic Haxe syntax.

Topic-specific example

haxe-05-07.hx
haxe Try It Live 
class Main { static function show<T:{name:String}>(x:T) trace(x.name); static function main(){ show({name:"Ava",id:7}); } }
Edge case / engineering note

Compile Type parameters constraints for at least one target and watch for target-specific behavior where the feature crosses a platform boundary.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Type parameters constraints Mastery Check →
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