react-auto-bind

react-auto-bind

Automatically bind methods to their class instance. This is optimized for react. It doesn't bind render and other lifecycle methods.

Install

$ npm install --save react-auto-bind

Usage

const autoBind = require('react-auto-bind');

class Unicorn {
	constructor(name) {
		this.name = name;
		autoBind(this);
	}
	message() {
		return `${this.name} is awesome!`;
	}
}

const unicorn = new Unicorn('Rainbow');

// grab the method off the class instance
const message = unicorn.message;

// still bound to the class instance
message();
//=> 'Rainbow is awesome!'

// without `autoBind(this)`, the above would have resulted in
message();
//=> Error: Cannot read property 'name' of undefined

Related

• bind-methods - Bind all methods in an object to itself or a specified context
• auto-bind - Automatically bind methods to their class instance.