ClassesClasses are an object-oriented syntax for JavaScript prototypes.javascriptJavaScriptwidely2016-03-082018-09-08https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-class-definitionses6-classhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Classesjavascript.classesjavascript.classes.constructorjavascript.classes.extendsjavascript.classes.private_class_fieldsjavascript.classes.private_class_fields_injavascript.classes.private_class_methodsjavascript.classes.public_class_fieldsjavascript.classes.staticjavascript.classes.static.class_fieldsjavascript.classes.static.initialization_blocksjavascript.operators.classjavascript.operators.new_targetjavascript.operators.superjavascript.statements.classhttps://nowyoucanuse.com/features--class-syntax.html