Enter a js find the longest English words in English

Enter a write English by JS find the longest English word

method one

= The require the Read the let ( "readline-Sync" ); 
console.log ( "Enter the English sentence" ); 
the let str = read.question ( "" ); 
console.log ( "the longest word:" + Word (str) )
 function Word (DC) { 
    the let ARR = dc.split ( "" ); 
    the let n- = [];
     for ( var I = 0; I <arr.length; I ++) {   // create a new array into a string array 
        IF (! ARR [I] = "" ) { 
            n.push (ARR [I]) 
        } 
    } 
    the console.log (n-) 
    var len = 0 ;
     var COM = 0 ;
    for( Var J = 0; J <n.length; J ++) {   // Analyzing longest word in the array number 
        len = n-[J] .length;
         IF (len> COM) { 
            COM = len 
        } 
    } 
    Console. log ( "statement has up:" + com + "th word") // number of the longest word that word output 
    the console.log () 
    the let SUM = []
     for ( var K = 0; K <n.length; ++ K ) {
         IF (n-[K] .length == COM) { 
            n-sum.push ([K]) 
        } 
    } 
    return SUM 
}

Method Two:

let read =require("readline-sync");
console.log("输入英语语句");
let str=read.question("");

function longword(str){
    let arr=str.split(" ")
    let max=arr[0].length
    for(var i=1;i<arr.length;i++){
        if(arr[i].length>max){
            max=arr[i].length;
        }
    }
    let arr2=[]
    for(let j=0;j<arr.length;j++){
        if(arr[j].length==max){
            arr2.push(arr[j])
        }
    }
    return arr2
}
console.log(longword(str))