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Add description and use fields to creational patterns

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+17

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+17

-5

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Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -2,7 +2,10 @@ const ABSTRACT_FACTORY = {`
`2`	`2`	`id: 'abstract_factory',`
`3`	`3`	`name: 'Abstract Factory',`
`4`	`4`	`type: 'creational',`
`5`		`- hint: 'groups object factories that have a common theme',`
	`5`	`+ hint: 'Creates an instance of several families of classes',`
	`6`	+ description: `Rather than building a concrete object, it’s building a family of
	`7`	+ related or dependent objects without specifying concrete class.`,
	`8`	+ use: `system should be independent of how what it is producing is structured or represented`,
`6`	`9`	codeES5: `function droidProducer(kind) {
`7`	`10`	`if (kind === 'battle') return battleDroidPattern;`
`8`	`11`	`return pilotDroidPattern;`

Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -2,7 +2,10 @@ const BUILDER = {`
`2`	`2`	`id: 'builder',`
`3`	`3`	`name: 'Builder',`
`4`	`4`	`type: 'creational',`
`5`		`- hint: 'constructs complex objects by separating construction and representation',`
	`5`	`+ hint: 'Separates object construction from its representation',`
	`6`	+ description: `Separate how object is created from its representation,
	`7`	+ so the same process of creation can generate different representations.`,
	`8`	+ use: `algorithm of creation is independent of the parts of the object`,
`6`	`9`	codeES5: `function Request() {
`7`	`10`	`this.url = '';`
`8`	`11`	`this.method = '';`

Lines changed: 3 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -2,7 +2,9 @@ const FACTORY = {`
`2`	`2`	`id: 'factory',`
`3`	`3`	`name: 'Factory',`
`4`	`4`	`type: 'creational',`
`5`		`- hint: 'creates objects without specifying the exact class to create',`
	`5`	`+ hint: 'Creates an instance of several derived classes',`
	`6`	+ description: `Gives an interface to build an object but let subclasses to decide which class to instantiate.`,
	`7`	+ use: `a class wants its subclasses to decide which object to create`,
`6`	`8`	codeES5: `function teslaPattern(type) {
`7`	`9`	`if (type === 'ModelX') return new Tesla(type, 108000, 300);`
`8`	`10`	`if (type === 'ModelS') return new Tesla(type, 111000, 320);`

Lines changed: 3 additions & 1 deletion

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`@@ -2,7 +2,9 @@ const PROTOTYPE = {`
`2`	`2`	`id: 'prototype',`
`3`	`3`	`name: 'Prototype',`
`4`	`4`	`type: 'creational',`
`5`		`- hint: 'creates objects by cloning an existing object',`
	`5`	`+ hint: 'A fully initialized instance to be copied or cloned',`
	`6`	+ description: `Create objects by copying prototypical instance of them.`,
	`7`	+ use: `classes to instantiate are available only in runtime`,
`6`	`8`	codeES5: `function Sheep(name, weight) {
`7`	`9`	`this.name = name;`
`8`	`10`	`this.weight = weight;`

Lines changed: 3 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -2,7 +2,9 @@ const SINGLETON = {`
`2`	`2`	`id: 'singleton',`
`3`	`3`	`name: 'Singleton',`
`4`	`4`	`type: 'creational',`
`5`		`- hint: 'restricts object creation for a class to only one instance',`
	`5`	`+ hint: 'A class of which only a single instance can exist',`
	`6`	+ description: `Ensures that a class has only one instance and gives global access to it.`,
	`7`	+ use: `there must by only one instance of a class`,
`6`	`8`	codeES5: `function Person() {
`7`	`9`	`if (typeof Person.instance === 'object') return Person.instance;`
`8`	`10`

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