Here's an example code snippet in JavaScript:
const items = [
{ name: "apple", color: "red" },
{ name: "banana", color: "yellow" },
{ name: "orange", color: "orange" },
{ name: "grape", color: "purple" },
];
const permittedColors = ["red", "orange"];
const filteredItems = items.filter((item) => {
return permittedColors.includes(item.color);
});
console.log(filteredItems); // Output: [{ name: "apple", color: "red" }, { name: "orange", color: "orange" }]
In this example, we have an array of items
where each item has a name
and a color
property. We also have a plain list of permittedColors
that we want to use as a filter.
To select the items whose color
property appears in the permittedColors
list, we use the filter()
method on the items
array. Inside the filter()
method, we use the includes()
method on the permittedColors
array to check if the color
property of each item is included in the permitted colors list. If it is, the item is included in the filteredItems
array.
Finally, we log the filteredItems
array to the console, which should contain only the items whose color
property is either "red" or "orange".
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Asked: 2023-06-26 18:59:16 +0000
Seen: 8 times
Last updated: Jun 26 '23
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