Question

How to add a property to the end of an object in JavaScript

Answer 1

let obj = {
  lang1: 'javascript',
  lang2: 'c++',
  lang3: 'python',
};

obj = {...obj, lang4: 'c'};

console.log(obj);
   
   
   
   
/*
run:
   
{
  lang1: "javascript",
  lang2: "c++",
  lang3: "python",
  lang4: "c"
}
   
*/

 

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