basic_valleys.js

function countingValleys(steps, path) {
  for (let index = 0; index < steps; index++) {
    const currentStep = path[index];
    const nextStep = path[index + 1];
    let downHill = 0;
    let upHill = 0;
    if (currentStep + nextStep !== "UD") {
      if (currentStep === nextStep) {
        // we are either going downhill or uphill
        // now check if currentStep is D which means downhil, if U then upHill
      }
    }
  }
}