zoqaping.blogg.se - Js get class name

This object created can be used to return the class name by calling the name property of the constructor function. If no constructor is defined, the system invokes the default constructor. While creating an object of the class, the corresponding constructor is called either explicitly or implicitly. Solution 1: Get Class Name of an Object Using the constructor Function Now that basics are clear let us take a look at different solutions available to find the Class Name of an Object in JavaScript with examples. The purpose of a constructor is to initialize a new object and set values for any existing object properties. Invoked during the creation of an object using the new keyword. Object: It is an entity that has a particular state and behaviourĬonstructor: It is a member function of the class. How to get the Class Name of an Object in JavaScript?īefore we start exploring the answer to this question, let’s familiarize ourselves with some basic concepts.Ĭlass: They are templates/prototypes for creating objects. The constructor will have the same name as the class name so we can use this to get the Class Name of an object in Javascript using the constructor name. The constructor method in JavaScript is a special method of a class for creating and initializing an object instance of that class.

Solution 2: Get Class Name of an Object Using Function inside the class.

Solution 1: Get Class Name of an Object Using the constructor Function.

How to get the Class Name of an Object in JavaScript?.

Return obj.toString().match(/ (\w+)/) Ĭonsole.log("constructor:", what(p.constructor), "name:", p.constructor.name, "class:", what(p)) įunction Player() else if (type = 'function' & ns. Matching (\w+) should satisfy ES6 style classes. Or maybe you should ask yourself "Why am I doing this? Is this really what I am trying to solve?" If the following adds to the complexity of your decision then maybe you're looking for instanceof. There is a difference between the constructor and the actual object/class name.

As this was already answered, I just wanted to point out the differences in approaches on getting the constructor of an object in JavaScript.