/TypeScript/Lodash merge array of objects without duplicates

Lodash merge array of objects without duplicates

How to merge 2 object array by the same key with lodash

Lodash
var a = [
  { userId:"p1", item:1},
  { userId:"p2", item:2},
  { userId:"p3", item:4}
];

var b = [
  { userId:"p1", profile:1},
  { userId:"p2", profile:2},
  { userId:"p4", profile:4}
];
var merged = _.merge(_.keyBy(a, 'userId'), _.keyBy(b, 'userId'));
var values = _.values(merged);
console.log(values);
<script src="https://cdnjs.cloudflare.com/ajax/libs/

Source: stackoverflow.com

Lodash merge array of objects without duplicates

var c = _.map(a, function(obj) {
    return _.assign(obj, _.find(b, {parentId: obj.aId}));
})

Source: stackoverflow.com

Merge two arrays of objects lodash

const array1 = [{id:1, name:'doc1'}, {id:2, name:'doc2', {id: 3: "test"}}];
const array2 = [{id:1, name:'doc1'}, {id:3, name:'doc3'}, {id:4, name:'doc4'}];

const result = _.unionBy(array1, array2, 'id');
console.log(result);

-1

Source: stackoverflow.com

Similar codes

0 vote183 views1 answer
How to calculate power of hypothesis test
TypeScript
0 vote177 views1 answer
TypeError: autodiscover_tasks() takes at least 2 arguments (1 given) celery
TypeScript
0 vote183 views1 answer
Could not find method Properties() for arguments [] on project ':app'
TypeScript
-1 vote186 views1 answer
What are the components of the environment? Explain it along with the examples.
TypeScript
0 vote209 views1 answer
Function printprops(o) { for(var p in o) console.log(p + ": " + o[p] + "\n"); } What will the above code snippet result ? Prints the contents of each property of o Returns undefined Both a and b None of the mentioned
TypeScript
1 vote178 views1 answer
Convert string to uppercase typescript
TypeScript
0 vote200 views4 answers
Typescript hello world
TypeScript
0 vote210 views1 answer
Jest not tocontain
TypeScript
0 vote225 views1 answer
Lodash typescript
TypeScript
-1 vote198 views1 answer
Whats a company letterhead
TypeScript