问如何找到给定数组是循环的还是不循环的？

EN

 const cyclicOrNot = () => {

    var tasks = ["a", "b", "c",] ,
    dependencies = ["a:b","b:c", "c:a",], result = []
    var found = false

    dependencies.map(i=>{
      var dependentitem = i.split(':')[0];
     var cyclicResult= checkCyclic(i,dependencies,dependentitem,found);
     console.log(cyclicResult)
      if(cyclicResult) {
        return "cyclic"
      }
      else {
        return "not cyclic"
      }

  })
}


  const checkCyclic = (i,dep,item,found) => {

    return  dep.every(d=>{
      if (i.split(':')[1]===d.split(':')[0]) {
        if(item===d.split(':')[0]){
          found = true
          return found
        }
        else {
          checkCyclic(d,dep,item,found);
        }
        return found
      }
    })
  }