Answers for "remove duplicate data from json object angular"

js remove json value duplicates

var data = [{
    "name": "Peter",
    "age": 30,
    "hair color": "brown"
}, {
    "name": "Steve",
    "age": 55,
    "hair color": "blonde"
}, {
    "name": "Steve",
    "age": 55,
    "hair color": "blonde"
}]

 data = this.data.filter((obj, pos, arr) => {
   return arr
     .map(mapObj => mapObj.name)
     .indexOf(obj.name) == pos;
 });

console.log(data);
/*
[{
    "name": "Peter",
    "age": 30,
    "hair color": "brown"
}, {
    "name": "Steve",
    "age": 55,
    "hair color": "blonde"
}]
*/

remove duplicates objects from array angular

this.item = this.item.filter((el, i, a) => i === a.indexOf(el))