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2025/7/8 -The super keyword is used to access properties on an object literal or class's [[Prototype]], or invoke a superclass's constructor.
2016/12/27 -In a derived class, you always1 need to call the super(…) constructor · If you are not doing more than the default constructor, you can omit the ...
By calling the super() method in the constructor method, we call the parent's constructor method and gets access to the parent's properties and methods:.
2018/3/18 -In simple terms, the super keyword appears alone when used in constructor, & must be used before the this keyword is used. The super keyword can ...
2026/5/22 -The super() call can only be called at most once for each new call to a derived class constructor. Often, you need to call it exactly once, ...
2009/4/17 -When you are using prototypal inheritence, you should always call the super constructor from the sub-class constructor to make sure that your ...
By calling super , you ensure that all properties defined in the parent class are correctly set up before you add or modify properties specific to the subclass.
2025/5/23 -When you create a subclass, you must call super() in the constructor before using this . This initializes the parent class properties. class ...
Constructors of derived classes must call super() . Constructors of non derived classes must not call super() . If this is not observed, the JavaScript ...
super calls the parent constructor from a child class, or one of its methods, so behavior can be completed instead of being rewritten.