Use class syntax to define a constructor function in javascript |
Use class syntax to define a constructor function in javascript | Javascript Full Course |#javascript | #Revildo_code
constructor is a special function that creates and initializes an object instance of a class. In JavaScript, a constructor gets called when an object is created using the new keyword. The purpose of a constructor is to create a new object and set values for any existing object properties.
class constructor is a special member function of a class that is executed whenever we create new objects of that class. A constructor will have exact same name as the class and it does not have any return type at all, not even void.
The function statement is not the only way to define a new function; you can define your function dynamically using Function() constructor along with the new operator. Note − Constructor is a terminology from Object Oriented Programming. You may not feel comfortable for the first time, which is OK.
constructor is a function that creates an instance of a class which is typically called an "object". In JavaScript, a constructor gets called when you declare an object using the new keyword. The purpose of a constructor is to create an object and set values if there are any object properties present.
Simple example no error if you don't use a constructor in the class. Constructors require the use of the new operator to create a new instance, as such invoking a class without the new operator results in an error, as it's required for the class constructor to create a new instance
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