JavaScript『class{}』

(class Signal{})

class Signal{}

(class Signal{constructor(Color){this.color=Color;} info(){console.log(this.color);}})

class Signal{constructor(Color){this.color=Color;} info(){console.log(this.color);}}

(const stop=new Signal('red');)

const stop=new Signal('red');

(stop.color;)

stop.color;

(stop.info();)

stop.info();

(class Line {static send(){console.log('Hello!');}})

class Line {static send(){console.log('Hello!');}}

(Line.send();)

Line.send();

(class Akb {constructor(member){this.name=member;}})

class Akb {constructor(member){this.name=member;}}

(class Hkt extends Akb{})

class Hkt extends Akb{}

(const rino=new Hkt('Rino'); console.log(rino.name);)

const rino=new Hkt('Rino'); console.log(rino.name);

(class Square{constructor(value){this.length=value;} area(){return this.length**2;}})

class Square{constructor(value){this.length=value;} area(){return this.length**2;}}

(class Cube extends Square {volume(){return this.length**3;}})

class Cube extends Square {volume(){return this.length**3;}}

(const box=new Cube(10); console.log(box.area(),box.volume());)

const box=new Cube(10); console.log(box.area(),box.volume());

(class Signal {constructor(Color){this.color=Color;}})

class Signal {constructor(Color){this.color=Color;}}

(class Singo extends Signal {constructor(mean){super('blue');this.mean=mean;})

class Singo extends Signal {constructor(mean){super('blue');this.mean=mean;}

(info() {console.log(`${this.color} is ${this.mean}`);}})

info() {console.log(`${this.color} is ${this.mean}`);}}

(const blue=new Singo('Go'); blue.info();)

const blue=new Singo('Go'); blue.info();

(class Blog {info(){alert('updated');}})

class Blog {info(){alert('updated');}}

(class Fb extends Blog {info2(){super.info();}})

class Fb extends Blog {info2(){super.info();}}

(const fb=new Fb(); fb.info2();)

const fb=new Fb(); fb.info2();