What is the term for a JavaScript function that is used to create a custom object?

The term for a JavaScript function that is used to create a custom object is "Constructor." In JavaScript, a constructor function is typically defined using a regular function, but it is conventionally named with an initial uppercase letter to signify that it is intended to be used with the new keyword. When the new keyword is used with a constructor function, it creates a new object that is an instance of the constructor’s prototype.

In the body of the constructor, properties can be assigned to the this context, which refers to the newly created object. This allows the constructor to initialize the object's properties based on parameters passed to it. When developers want to create multiple instances of an object with similar characteristics, they use constructors to encapsulate the initialization logic in a reusable manner.

The other terms mentioned relate to different aspects of JavaScript but do not specifically describe the function that creates an object. A method refers to a function that is a property of an object, a prototype is an object from which other objects inherit properties, and an initializer typically refers to the process of assigning a value to a variable or property at the time of declaration rather than a function for creating objects.