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joepie91/1-code.js

Created February 10, 2020 01:29
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1-code.js
const immutableCollection = require("./");
let items = [{
id: 1,
color: "blue"
}, {
id: 2,
color: "red"
}, {
id: 3,
color: "red"
}, {
id: 4,
color: "red"
}, {
id: 5,
color: "blue"
}, {
id: 6,
color: "blue"
}, {
id: 7,
color: "red"
}];
let collection = immutableCollection(items);
let modified = collection.modify((collection) => {
return collection
.subset((blueItems) => {
return blueItems
.select((item) => item.color === "blue")
.remove();
})
.subset((oddItems) => {
return oddItems
.select((item) => item.id % 2 === 1)
.map((item) => ({ ... item, color: "green" }));
})
.map((item) => ({ ... item, id: item.id * 2 }));
});
console.log(modified);
Raw
2-result.js
[ { id: 4, color: 'red' },
{ id: 6, color: 'green' },
{ id: 8, color: 'red' },
{ id: 14, color: 'green' } ]
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