Is there a better way of writing v = (v == 0 ? 1 : 0);

Toggle techniques explained

Let's go more in-depth about toggle techniques. We'll start by introducing various alternatives before discussing best practices, their use-cases, and potential pitfalls.

1. Bitwise XOR Operator
   Ideal for switching between two known integers:

   // XOR God enters the chat
   v ^= 1;
   

2. Logical NOT Operator
   Perfect for binary state variables. But remember, it transforms any non-zero value to 0:

   // You're NOT the boss of me
   v = +!v;
   

3. Modulo Operator
   Handy to rotate through a range of numbers:

   // Let's play round-robin
   v = (v + 1) % 2;
   

4. Encapsulated Conditional Operator
   The original ternary condition can improve readability when enclosed in a function:

   // Mission: Possible toggle inversion
   function inv(value) {
      return value ? 0 : 1;
   }
   v = inv(v);
   

Balancing readability, efficiency, and cleverness

While toggling methods seem quick and clever, always consider these factors:

• Ensure v is binary
• Consistent readability
• Code efficiency These are key to maintaining clean and comprehensible code that won't confuse collaborators or your future self.

Prerequisite : JavaScript's truthy and falsy

Truthy (1) and falsy (0) concepts are fundamental. In JavaScript, 0 represents false and 1 as true. Type coercion occurs with operators, impacting the outcome unexpectedly, and a ternary operator can end up comparing truthy values reducing to v = 1.

Extending the tengible use case

Further application of our methods:

1. Cycling through multiple values
   Toggle through more options using % to control the cycle:

   // Switches faster than a three-eyed raven's vision
   v = (v + 1) % 3;
   

2. Non-binary Initial Values
   Initial v should be binary:

   // Like flipping a fair coin...
   let v = Math.random() < 0.5 ? 0 : 1;
   

3. Controlling a complex system
   For a system needing multiple toggles, consider refactoring:

   let systemState = { 
       light: 0, fan: 1, alarm: 0 
   };
   // If Thanos snapped his fingers...
   Object.keys(systemState).forEach(
       key => systemState[key] = 1 - systemState[key]
   );
   