reduce duplicate key value pair to key: value[] in javascript code example
Example: remove duplicates from array of objects javascript
arr.filter((v,i,a)=>a.findIndex(t=>(t.place === v.place && t.name===v.name))===i)arr.filter((v,i,a)=>a.findIndex(t=>(t.place === v.place && t.name===v.name))===i)