collect.js

union()

The union method adds the given array to the collection. If the given array contains keys that are already in the original collection, the original collection's values will be preferred:

const collection = collect({
  a: "A",
  b: "B"
});

const union = collection.union({
  a: "AAA",
  c: "CCC",
  b: "BBB"
});

union.all();

//=> {
//=>   a: 'A',
//=>   b: 'B',
//=>   c: 'CCC',
//=> }

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