var n=3
var array=[1,0,1,0,0,0,1,0,1,0,0,0,0,0,0,1,0,1]
function let1(array,n){
var code=[]
for(var i=0;i<array.length;i++){
if(array[i]===0&array[i-1]===0&array[i+1]===0){ code.push(array[i]) i=i+2 } }
if(code.length>=n){return true}else{ return false }
}
console.log(let1(array,n))

   function let2(array,n){   
   var result=array.join("")   
   result=result.match(/0{3}/g)                                                 
       if(n<=result.length){return true}else{     return false   }
        } 
       console.log(let2(array,3))