java check if class is subclass
boolean is_subclass = Superclass.class.isAssignableFrom(Subclass.class);
// example:
// List.class.isAssignableFrom(LinkedList.class) is true
// List.class.isAssignableFrom(HashMap.class) is falsejava check if class is subclass
boolean is_subclass = Superclass.class.isAssignableFrom(Subclass.class);
// example:
// List.class.isAssignableFrom(LinkedList.class) is true
// List.class.isAssignableFrom(HashMap.class) is falsecheck if element with class has another class javascript
const div = document.querySelector('div');
div.classList.contains('secondary'); // trueCode language: JavaScript (javascript)Copyright © 2021 Codeinu
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