arr = new Array(); arr.push({place:"1",name:"true"}); arr.push({place:"1",name:"false"}); arr.push({place:"2",name:"false"}); arr.push({place:"2",name:"false"}); arr.push({place:"3",name:"false"}); arr.push({place:"3",name:"true"});I'm curious about the most effective way to eliminate duplicate objects from an array. For instance, if we were to remove duplicates from arr, it would look like...
{place:"1",name:"true"}, {place:"2",name:"false"}, {place:"3",name:"true"}The most effective approach is to create a function that removes duplicates from an array:
function removeDuplicates<T>(arr: T[]): T[] {
return Array.from(new Set(arr));
}
However, if you need to define what makes elements unique, you can use a different function:
function removeDuplicatesBy<T, K>(arr: T[], getKey: (item: T) => K): T[] {
return Array.from(
new Map(
arr.map(element => [getKey(element), element])
).values()
);
}
If you are unsure about the key for uniqueness, you can simply use JSON.stringify as the getKey function.
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