Where Art Thou bonfire challenge from Free Code Camp - two versions

gistfile1.txt

function where(collection, source) {
  var arr = [];
  var keyName = Object.keys(source)[0];
    collection.forEach(function(person) {
        if (person.hasOwnProperty(keyName) && (person[keyName] === source[keyName])) {
            //console.log(person[keyName]);
           arr.push(person);
        }
    });
    console.log("1"+ JSON.stringify(arr));
    return arr;
}
//where([{ first: 'Romeo', last: 'Montague' }, { first: 'Mercutio', last: null }, { first: 'Tybalt', last: 'Capulet' }], { last: 'Capulet' });


function whereTo(collection, source) {
  var arr = [];
  var keyName =Object.keys(source)[0];
  collection.map(function(person){
    if(person.hasOwnProperty(keyName) && (person[keyName] === source[keyName])) {
            //console.log(person[keyName]);
            arr.push(person);
         }
    });
     console.log("2"+ JSON.stringify(arr));
    return arr;
}
whereTo([{ first: 'Romeo', last: 'Montague' }, { first: 'Mercutio', last: null }, { first: 'Tybalt', last: 'Capulet' }], { last: 'Montague' });

function where(collection, source) {

var result = [];
var findKeys = Object.keys(source);

for (var i = 0; i < collection.length; i++) {

var hasProperties = true;
var currentObject = collection[i];

for (var j = 0; j < findKeys.length; j++) {
  var key = findKeys[j];

  if (!currentObject.hasOwnProperty(key) || currentObject[key] !== source[key]) {
    hasProperties = false;
  }
}
if (hasProperties) {
  result.push(currentObject);
} 

}
return result;
}

here is my code:

`function where(collection, source) {

var check = true;

var arr = [];

for(i=0; i < collection.length; i++){ 

for (var prop in source){ 

    if(collection[i].hasOwnProperty(prop) && collection[i][prop] == source[prop]){ 

        check = true; 

    } else {

        check = false; 
        break;
    }
}  
if (check === true){ 

arr.push(collection[i]);   
}

}
return arr;
}`