I'm trying to return only a part of my object as an array based on conditionals but I'm kinda stumped.
I have an array of objects and I want to return an array of names for each key : value they fit in.
I do get only the unique pairings but I'm returning the food key:value as well and all of it is still inside an object not a new array. Some insight would be greatly appreciated. Newer to coding.
const organizeNames = function (foods) {
let foodNames = foods.filter((names) => {
if (names.food === 'oranges') {
return names.name;
}
});
console.log(foodNames);
};
console.log(
organizeNames([
{ name: 'Samuel', food: 'oranges' },
{ name: 'Victoria', food: 'pizza' },
{ name: 'Karim', food: 'pizza' },
{ name: 'Donald', food: 'pizza' },
])
);You're really close here. What you need to incorporate is .map() to map your list of objects to a list of names. Your filter part works, partly by accident, so I've fixed it to be more correct (return names.food === 'oranges'), and then once you have your list of objects that match 'oranges' for their food, you map that filtered list into a list of names by doing .map(names => names.name)
const organizeNames = function (foods) {
let foodNames = foods.filter((names) => {
// only keep items whose .food property === 'oranges'
return names.food === 'oranges'; // returns true or false
}).map(names => {
// map the filtered list of objects into a list of names by
// returning just the object's .name property
return names.name;
});
return foodNames;
};
console.log(
organizeNames([
{ name: 'Samuel', food: 'oranges' },
{ name: 'Victoria', food: 'pizza' },
{ name: 'Karim', food: 'pizza' },
{ name: 'Donald', food: 'pizza' },
])
);The filter() callback function should just return true or false. Then you can use map() to get a specific property from each of the filtered items.
const organizeNames = function(foods) {
let foodNames = foods.filter((names) => names.food == 'oranges').map(names => names.name);
return foodNames;
}
console.log(
organizeNames([{
name: 'Samuel',
food: 'oranges'
},
{
name: 'Victoria',
food: 'pizza'
},
{
name: 'Karim',
food: 'pizza'
},
{
name: 'Donald',
food: 'pizza'
},
])
);