class variable in javascript code example

Example 1: es6 class example

class Polygon { 
   constructor(height, width) { 
      this.height = height; 
      this.width = width; 
   } 
}

Example 2: variables in js class

constructor(){
    this.foo = bar
}

Example 3: class declaration in javascript

class NameOfClass {
//class declaration first letter should be capital it's a convention
  obj="text";
  obj2="some other text";
}
//always call class with "new" key word
console.log(new NameOfClass);

Example 4: how to create class in javascript

class ClassName
{
	  
}