Comparison

Comparing whether more than 3 elements are equal to each other?

Comparison logic for up to three elements is straightforward. Comparing more elements need more clever solutions.

/* manual comparison of 3 elements */ 
if(g === h && g === f) { "do something" } 

/* looping comparison of n-elements */ 
function nEqual(){
  for (let i = 1; i < arguments.length; i++){
    if (
        arguments[i] === null || 
        arguments[i] !== arguments[i-1]
      ) {
        return false;
      }
  return true;
};

nEqual(a,b,c,d,e,f,g,h) && { "do something" }