Finding a "safety syntax" for classes

safety-syntax-comment.js

// This code example was seen here:
// https://mail.mozilla.org/pipermail/es-discuss/2012-March/021430.html

class Horse extends Animal {
  constructor(name){
    super(name);
  }
  move() {
    alert("Galloping...");
    super.move(45);
  }
}

// The line super.move(45); implies that super methods other than one named
// the same as the currently executing method can be invoked, eg.
// super.otherMethod(). While this is *technically* possible using Prototypal
// inheritance, it's a bad idea. The locally-defined otherMethod() should be
// responsible for determining how it delegates to its super methods, not the
// calling method.

// I recommend changing super.move(45); to super(45); like so:

class Horse extends Animal {
  constructor(name){
    super(name);
  }
  move() {
    alert("Galloping...");
    super(45);
  }
}