How to get difference values between an array of values and array of object using lodash-CodePudding

I have two array as

a1 = ['[email protected]','[email protected]','[email protected]'];
a2 = [{email: '[email protected]'},{email: '[email protected]'}];

Now I want to get difference between these two array mentioned above as

resultDifference = ['[email protected]'];

How to achieve this difference result by using lodash only.

CodePudding user response：

You should add what you have tried to your post

const a1 = ["[email protected]", "[email protected]", "[email protected]"];
const a2 = [{ email: "[email protected]" }, { email: "[email protected]" }];

const ans = _.difference(
  a1,
  a2.map((a) => a.email)
);