I have json file: products.json:
[
{
"id": "1",
"category": "Fruit from USA",
"name": "Banana",
},
{
"id": "2",
"category": "Fruit from Brazil",
"name": "Long Banana",
},
{
"id": "3",
"category": "Vegetable",
"name": "Carrot",
},
{
"id": "4",
"category": "Car from USA",
"name": "Ford",
},
{
"id": "5",
"category": "Car from Germany",
"name": "Audi",
},
{
"id": "6",
"category": "Train from Italy",
"name": "Pendolino",
},
]
Then I have an array
testMatch.match: ['Car', 'Fruit'].
I want to filter out products.json to return only objects that have category starts with any of elements of matchCategory in ES6
What i have so far is:
const productList = products.filter(filteredCategory => filteredCategory.category.startsWith(testMatch.match));
But it does not work if there is more than 1 element in testMatch.match and if there is none - it returns all products and not none.
You could iterate match as well with Array#some and exit on find.
const
products = [{ id: "1", category: "Fruit from USA", name: "Banana" }, { id: "2", category: "Fruit from Brazil", name: "Long Banana" }, { id: "3", category: "Vegetable", name: "Carrot" }, { id: "4", category: "Car from USA", name: "Ford" }, { id: "5", category: "Car from Germany", name: "Audi" }, { id: "6", category: "Train from Italy", name: "Pendolino" }],
match = ['Car', 'Fruit'],
productList = products.filter(({ category }) =>
match.some(m => category.startsWith(m))
);
console.log(productList);.as-console-wrapper { max-height: 100% !important; top: 0; }Use Array.some() to test if it starts with any of the strings in testMatch.match.
const products = [{
"id": "1",
"category": "Fruit from USA",
"name": "Banana",
},
{
"id": "2",
"category": "Fruit from Brazil",
"name": "Long Banana",
},
{
"id": "3",
"category": "Vegetable",
"name": "Carrot",
},
{
"id": "4",
"category": "Car from USA",
"name": "Ford",
},
{
"id": "5",
"category": "Car from Germany",
"name": "Audi",
},
{
"id": "6",
"category": "Train from Italy",
"name": "Pendolino",
},
];
const testMatch = {
match: ['Car', 'Fruit']
};
const productList = products.filter(filteredCategory =>
testMatch.match.some(match => filteredCategory.category.startsWith(match)));
console.log(productList);