I am struggling to find out a solution to my problem, but at the moment I cannot come up with the right one.
When I have my two arrays of objects I want to filter based on category IDs and extract the data from the second one into a new array for example :
const array1 = [
{id: 1, name: 'Tropical'},
{id: 2, name: 'Common'}
]
const array2 = [
{id:1, name: 'Banana', category_id: 1},
{id:2, name: 'Mango', category_id: 1},
{id:3, name: 'Apple', category_id: 2},
]
And when click happens I detect the first ID and render the new array only with data that matches the ID. Click Tropical New array :
[
{id:1, name: 'Banana', category_id: 1},
{id:2, name: 'Mango', category_id: 1},
]
I would be happy if someone give me a hint on how can I tackle this problem. Thanks !
Use reduce to map over each item in array1 and filter to grab the items of that category_id
const array1 = [{
id: 1,
name: 'Tropical'
},
{
id: 2,
name: 'Common'
}
]
const array2 = [{
id: 1,
name: 'Banana',
category_id: 1
},
{
id: 2,
name: 'Mango',
category_id: 1
},
{
id: 3,
name: 'Apple',
category_id: 2
},
]
const obj = array1.reduce((acc, cur) => {
acc[cur.name] = array2.filter(v => v.category_id === cur.id)
return acc
}, {})
console.log(obj)You could do something like filtering array2 and taking all the elements that have Tropical as name in array1.
const array1 = [
{id: 1, name: 'Tropical'},
{id: 2, name: 'Common'}
]
const array2 = [
{id:1, name: 'Banana', category_id: 1},
{id:2, name: 'Mango', category_id: 1},
{id:3, name: 'Apple', category_id: 2},
]
// take tropical friuts
let tropicalFriuts = array2.filter(x => x.category_id === array1.filter(y => y.name === 'Tropical')[0].id);
console.log(tropicalFriuts);If I understood your problem you want before find the id, based on the name of the category, and later filter array2 data based on this id.
const array1 = [{
id: 1,
name: 'Tropical'
},
{
id: 2,
name: 'Common'
}
]
const array2 = [{
id: 1,
name: 'Banana',
category_id: 1
},
{
id: 2,
name: 'Mango',
category_id: 1
},
{
id: 3,
name: 'Apple',
category_id: 2
},
]
const id_key = array1.find(item=>item.name === 'Tropical').id;
const result = array2.filter(item=>item.category_id === id_key);
console.log(result);