javascript remove duplicates from array of objects

Question

I have below array of objects,

var parsedData = [
 {
 "ID": "16",
 "DESCRIPTION": "SMAATO"
 },
 {
 "ID": "26",
 "DESCRIPTION": "BIDSWITCH"
 },
 {
 "ID": "1572",
 "DESCRIPTION": "BIDSWITCH"
 }
 ]

i have removed duplicate from this using below code,

var flags = [], l = parsedData.length, i;
 for( i=0; i<l; i++) {
 if( flags[parsedData[i].DESCRIPTION]){ 
 if(attribute.toLowerCase() == "supply"){
 console.log("coming!!"+parsedData[i].ID+"---"+parsedData[i].DESCRIPTION); 
 }
 continue; 
 }
 flags[parsedData[i].DESCRIPTION] = true;
 groups_array.push({ 
 id: parsedData[i].ID, 
 text: parsedData[i].DESCRIPTION
 }); 
 }

but what i need to achive is, if id is differnt and description same means need to append id to first one and remove duplicate one like this,

[
 {
 "ID": "16",
 "DESCRIPTION": "SMAATO"
 },
 {
 "ID": "26,1572",
 "DESCRIPTION": "BIDSWITCH"
 }
]

How to get this one help me please...

Answer 1

Try:

if (flags[parsedData[i].DESCRIPTION]) {
 let id = groups_array.map(item => item.text).indexOf(parsedData[i].DESCRIPTION);
 groups_array[id].id = groups_array[id].id + "," + parsedData[i].ID
 continue; 
}

• Harifrais: Thanks Its working.But the arrow function will support in all browsers?.In IE its not working.
• Ambu: If I'm not wrong, you can replace arrow function with: function(item){return item.text}. I've no idea If it'll work in all browsers, it's beyond my expertise, but googling 'arrow function browser support' should help. Perhaps, the details might be a topic for another, new SE question.