How can I get the last object from an array of identical objects. I attached the code. I will appreciate any help. Thank you!
Input
[
{name:'Sam', count:3},
{name:'Sam', count:5},
{name:'Sam', count:8},
{name:'Jill', count:7},
{name:'Jill', count:6},
]
Output
[
{name:'Sam', count:8},
{name:'Jill', count:6},
]
You can use reduce() to do it, each time we check if the name exists or not,if it exists then remove the exists one and put the new one into the result array
Update: Based on @Simon's comment,I update my answer with more simple code
let data = [
{name:'Sam', count:3},
{name:'Sam', count:5},
{name:'Sam', count:8},
{name:'Jill', count:7},
{name:'Jill', count:6},
]
let result = Object.values(data.reduce((a,c) => {
a[c.name] = c
return a
},{}))
console.log(result)
const result = Array.from(yourArray.reduce((result, object) => { result.set(object.name, object); return result; }, new Map()).values());. See the documentation.