Merge two arrays matching an id

Question

I have two arrays like

var members = [{docId: \"1234\", userId: 222}, {docId: \"1235\", userId: 333}];
var memberInfo = [{id: 222, name: \"test1\"}, {id: 333         


        

Answer 1

On ES6 you can use .find and Object.assign() in vanilla javascript, no need of extra libraries.

let finalArray = [];
memberInfo.forEach(member => {
finalArray.push( Object.assign( {}, member, 
         { docId: members.find(m => m.userId === member.id).docId } 
    ))
});