Wherefore Art Thou help

Wherefore Art Thou help
0.0 0

#1

Hi, I’ve been struggling with the Where for art thou problem for a while.

This is what I’ve got so far:

function whatIsInAName(collection, source) {

var arr =[];

keys = Object.keys(source);
function check(item){
	if (item[keys] === source[keys]){
		return true
	}
	return false
}
arr = collection.filter(check)
return arr
  
  
  // Only change code above this line

}

It passes the first two tests, but not the last two. Could someone point me in the right direction?


#2
function whatIsInAName(collection, source) {

var arr =[];


var keys = Object.keys(source);
console.log(keys.length)
function check(item){
	
	for (var i = 0; i < keys.length; i++){
	
	if (item.hasOwnProperty(keys[i]) && item[keys[i]] === source[keys[i]]){
		return true
	}
	else return false
	}
}
arr = collection.filter(check)
return arr;
  
  
  // Only change code above this line

}

whatIsInAName([{ "a": 1, "b": 2 }, { "a": 1 }, { "a": 1, "b": 2, "c": 2 }], { "a": 1, "b": 2 })

#3

Thanks for posting! I was also in the middle of struggling with this and your post helped me think through it. I did a slightly different take that also worked. I assume the code in the second post worked?

function whatIsInAName(collection, source) {
  // What's in a name?
   function compare(prop) {
     return collection[i][prop] === source[prop];
  }
  var arr = [];
  
  var sourceProps = Object.getOwnPropertyNames(source);
  
  for (var i = 0; i < collection.length; i++) {
    
    if (sourceProps.every(compare) === true) {
      arr.push(collection[i]);
    }
  }
  return arr;
}
  
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });

Thanks!!!