mergeBy
Similar to .merge(), this method concats one or more arrays onto the wrapped array. However, unlike .merge(), mergeBy allows for a custom equality predicate for deduping. This is often useful when working with arrays of objects.
import { arr } from "@tsly/arr";
const arr1 = [{ name: "person1", age: 12 }, { name: "person2", age: 32 }];
const arr2 = [{ name: "person3", age: 32 }, { name: "person4", age: 10 }];
const arr3 = [{ name: "person5", age: 12 }, { name: "person6", age: 32 }];
arr(arr1)
.mergeBy((a, b) => a.age == b.age, arr2, arr3)
.take(console.log)
// [
// { name: "person1", age: 12 },
// { name: "person2", age: 32 },
// { name: "person4", age: 10 }
// ]