Hello, I’m trying to solve such exercise
Notes:
* If keys are present in the given array, but are not in the given object, it should ignore them.
* It does not modify the passed in object.
var arr = ['a', 'c', 'e'];
var obj = {
a: 1,
b: 2,
c: 3,
d: 4
};
var output = select(arr, obj);
console.log(output); // --> { a: 1, c: 3 }
here is my trying to solve it
function select(arr, obj) {
// your code here
let newObject={};
let newArr = Object.keys(obj);
for(let i = 0; i < newArr.length; i++){
for(let j = 0; j < arr.length; j++){
if(newArr[i] === arr[j]){
newObject[i] = obj[i];
}
}
}
console.log(newObject); //--> { 0: undefined, 2: undefined }
}
var arr = ['a', 'c', 'e'];
var obj = {
a: 1,
b: 2,
c: 3,
d: 4
};
var output = select(arr, obj);
console.log(output); // --> { a: 1, c: 3 }
The output of function --> { 0: undefined, 2: undefined }
My question is how correctly dynamically add the propertys to the newObject?