取出的对象:
js
封装比对
const capitals = {
"usa": "Washington DC",
"uk": "London",
"india": "New Delhi",
"italy": "rome",
"japan": "tokyo",
"germany": "berlin",
"china": "shanghai",
"spain": "madrid",
"france": "paris",
"portugal": "lisbon"
};
const countries = ["uk", "india", "germany", "china", "france"];
const filterObject = (obj, arr) => {
const newObj = {};
for(key in obj){
if(arr.includes(key)){
newObj[key] = obj[key];
};
};
return newObj;
};
console.log(filterObject(capitals, countries));