"filter duplicate value in array of object typescript" Code Answer's
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how to remove duplicate array object in javascript
let person = [{name: "john"}, {name: "jane"}, {name: "imelda"}, {name: "john"}];
function removeDuplicates(data, key) {
return [
...new Map(data.map(item => [key(item), item])).values()
]
};
console.log(removeDuplicates(person, item => item.name));
how to remove duplicate array object in javascript
let person = [
{name: "john"},
{name: "jane"},
{name: "imelda"},
{name: "john"},
{name: "jane"}
];
const data = Array.from(new Set(person.map(JSON.stringify))).map(JSON.parse);
console.log(data);
filter duplicate value in array of object typescript
var arrOfObj = [
{
id:1 ,name:'abc',age:27
},
{
id:2 ,name:'pqr',age:27
},
{
id:1 ,name:'abc',age:27
},
]
var setObj = new Set(); // create key value pair from array of array
var result = arrOfObj.reduce((acc,item)=>{
if(!setObj.has(item.age)){
setObj.add(item.age)
acc.push(item)
}
return acc;
},[]);//converting back to array from mapobject
console.log(result);
how to remove duplicate array object in javascript
let person = [
{name: "john"},
{name: "jane"},
{name: "imelda"},
{name: "john"},
{name: "jane"}
];
const obj = [...new Map(person.map(item => [JSON.stringify(item), item])).values()];
console.log(obj);
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