Question

How to remove duplicates from array of objects in Node.js

Answer 1

let array_obj = [
    { name: 'Matrix', age: 58, language: "node.js" },
    { name: 'Matrix', age: 58, language: "node.js" },
    { name: 'R2D2', age: 90, language: "c#" },
    { name: 'R2D2', age: 90, language: "c#" },
    { name: 'Machina', age: 49, language: "c++" },
];
 
const uniqueArr = [];

array_obj = array_obj.filter(element => {
  	const isDuplicate = uniqueArr.includes(element.name);

  	if (!isDuplicate) {
    		uniqueArr.push(element.name);

    		return true;
  	}

  return false;
});


console.log(array_obj);
    
    
    
    
/*
run:
    
[
  { name: 'Matrix', age: 58, language: 'node.js' },
  { name: 'R2D2', age: 90, language: 'c#' },
  { name: 'Machina', age: 49, language: 'c++' }
]
    
*/

 

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