I possess:
var list = {};
list["A"] = "a";
list["B"] = "b";
list["C"] = "c";
What is the best way to completely eliminate the item list["A"]? I want to ensure that I do not end up with a null object, so simply using delete list["A"] might not be the solution.
Is there a way to completely remove the item with key "S" from the map? I want to ensure that I don't end up with a null object by using delete map["S"].
delete will effectively erase it:
interface IMap {
[name: string]: string;
}
var map: IMap = {};
map["S"] = "s";
map["C"] = "c";
map["D"] = "d";
delete map["S"];
console.log(map);
console.log(map["S"], map["non-existent"]); // undefined,undefined
console.log(Object.keys(map)); // ["C","D"]
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