Pragma Singleton

Singleton design pattern implementation which easy to use.

Just apply this to any constructor function and all 'new' operators for this constructor will return the same instance.

Usage

To install just use NPM

npm install pragma-singleton

var singleton = require('pragma-singleton');

function Constructor(someValue) {
    this.someValue = someValue;
}

var SingletonConstructor = singleton(Constructor),
    instance1 = new SingletonConstructor('value1'),
    instance2 = new SingletonConstructor('value2');

console.log(instance1 == instance2); // true, because the same instance
console.log(instance2.someValue); // value1, because the value of first created instance

Pragma Dudes wish you live long and prosper.

info@pragma-dudes.org