Question

How to merge dictionaries in JavaScript

Answer 1

let dict1 = {}; // new & empty object
dict1.javascript = 5;
dict1.c = 8;
dict1.rust = 1;

let dict2 = {}; // new & empty object
dict2.dart = 7;
dict2.python = 2; 

const result = Object.assign({}, dict1, dict2);

console.log(result);




/*
run:

{
  c: 8,
  dart: 7,
  javascript: 5,
  python: 2,
  rust: 1
}

*/

 

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Answer 2

let dict1 = {}; // new & empty object
dict1.javascript = 5;
dict1.c = 8;
dict1.rust = 1;

let dict2 = {}; // new & empty object
dict2.dart = 7;
dict2.python = 2; 

const result = {...dict1,...dict2}

console.log(result);




/*
run:

{
  c: 8,
  dart: 7,
  javascript: 5,
  python: 2,
  rust: 1
}

*/

 

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