graphTraversalBFS.js

breathFirst(start){
  const queue = [start]
  const result = []
  const visited = {}
  let currentVertex
  visited[start] = true
  
  while(queue.length){
       currentVertex = queue.shift()
       result.push(currentVertex)
    
       this.adjacencyList[currentVertex].forEach((neighbor) => {
         if(!visited[neighbor]){
             visited[neighbor] = true
             queue.push(neighbor)
         }
       })
    }


}