let path="//home/./home/../page/"
function simplifyPath(path){
let stack=[]
let str=''
let newArr=path.split("/")
newArr.forEach(i=>{
if(i&&i==".."){
stack.pop()
}else if(i&&i!='.'){
stack.push(i)
}
})
str=stack.length?'/'+stack.join('/'):'/'
return str;
}
console.log(simplifyPath(path))
