function getLastLongStr(str, arr){
// const includesFn =
let tempArr =[];
for(let i = 0; i < arr.length; i++){
const tempCurArr = arr[i].split('');
if(tempCurArr.every((value)=> s.includes(value))){
tempArr.push(arr[i]);
}
}
let maxLengthstr = tempArr.reduce((pre,cur)=>{
return cur.length > pre.length ? cur : pre;
},'')
return maxLengthstr;
}