How deeply does Functional Programming in JavaScript cover mixin?

Defines the composition pattern and demonstrates one Lodash application, while deferring broader mixin coverage.

Mixin

As explained in Functional Programming in JavaScript

A reusable unit of behavior that can be composed into another type or object without classical inheritance.

A mixin is an object containing a related subset of functions that another object borrows to extend its behavior. It supports code reuse without classical inheritance and can model multiple-inheritance-like composition in JavaScript. section 3.4

Adding SQL-like operations to Lodash

Lodash can mix in aliases for familiar query operations, then chain them over data: _.mixin({'select': _.map, 'from': _.chain, 'where': _.filter, 'sortBy': _.sortByOrder}); The resulting API supports expressions such as _.from(persons).where(...).sortBy(['firstname']).select(...).value().

How Functional Programming in JavaScript covers it

Cover of Functional Programming in JavaScript

liveBook manning.com

Read Functional Programming in JavaScript on liveBook Get the book at manning.com

Also explained in

liveBook manning.com

The Joy of JavaScriptA composition approach that combines reusable behavior into objects by mixing in properties or methods from multiple sources.
liveBook manning.com

The Well-Grounded Rubyist, Fourth EditionA mixin is a module incorporated into a class or another module so that its methods participate in method lookup.
liveBook manning.com

The Quick Python Book, Fourth EditionA mixin class is a class designed to provide reusable behavior to other classes through inheritance rather than to serve as a complete standalone type.

Compare how 4 books explain mixin →

Related concepts

declarationproduces · A CSS declaration is a property-value pair that specifies one styling instruction.
inheritancealternative to · Inheritance is a mechanism by which a child type or element receives properties, values, or behavior from a parent, subject to system rules and possible overrides.
multiple inheritanceused by · Multiple inheritance is an object-oriented inheritance model in which a class or type directly derives attributes or behavior from more than one parent.
classused by · A class is a programming-language construct that defines a type’s structure or behavior and provides a basis for creating or representing objects.

This explainer was generated by Manning's knowledge graph from the text of Functional Programming in JavaScript. The section links point to the parts of the book it draws on.