创建一个文章的JavaScript类：

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class Article {
    
  constructor(title,date,author, paragraphs)
    {
        this.title = title;
        this.date=date;
        this.author=author;
        this.paragraphs = [];
    }

    setTitle(title) 
    {
    	this.title = title;
  	}

  	setDate(date) 
    {
    this.date = date;
  	}

 	 setAuthor(author)
 	 {
    this.author = author;
  	}
    
    addParagraph(paragraph)
    {
        if (paragraph instanceof Paragraph) {this.paragraphs.push(paragraph);}
        else {throw new Error("Invalid paragraph type.");}
    }

         
              }


class Paragraph 
    {
  constructor(text, images) {this.text = text;this.images = images;}
    }

一个实例如下：

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const myArticle = new Article("The Benefits of Meditation");

const paragraph1 = new Paragraph("Meditation has been proven to reduce stress and anxiety.", []);
myArticle.addParagraph(paragraph1);

const paragraph2 = new Paragraph("It can also improve focus and concentration.", []);
myArticle.addParagraph(paragraph2);