How to remove duplicates from array of objects in TypeScript

1 Answer

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let array_obj = [
    { name: 'Matrix', age: 58, language: "TypeScript" },
    { name: 'Matrix', age: 58, language: "TypeScript" },
    { name: 'R2D2', age: 90, language: "php" },
    { name: 'R2D2', age: 90, language: "php" },
    { name: 'Machina', age: 49, language: "c++" },
];
 
const uniqueArr : any = [];

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": "TypeScript"
}, {
  "name": "R2D2",
  "age": 90,
  "language": "php"
}, {
  "name": "Machina",
  "age": 49,
  "language": "c++"
}] 
    
*/

 



answered Jul 2, 2022 by avibootz

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