Recently, I've delved into learning angular4 and typescript. If this seems like a simple question, bear with me.
Within my angular service, I've defined a method:
removePerson(person: Person): Promise<void> {
return Promise.resolve(PERSONS.splice(PERSONS.indexOf(person), 1));
}
The Compiler is urging me to adjust the return type of the function to Promise<Person[]> from Promise<void>
However, I prefer to return void from the Promise. How should I alter the function's body?
It would be ideal if
function eliminateIndividual(person: Person): Promise<void> {
PERSONS.splice(PERSONS.indexOf(person), 1);
return Promise.resolve();
}
The function eliminateIndividual operates synchronously and the promise serves no purpose in this scenario. If there isn't a specific rationale for it to return a promise (e.g. adhering to an established API where eliminateIndividual is expected to return a promise), it could be altered to
function eliminateIndividual(person: Person): void {
PERSONS.splice(PERSONS.indexOf(person), 1);
}
In JavaScript, when you use the "void" keyword, it indicates that the function should not return anything. For example:
removePlayer(player:Player){
PLAYERS.splice(PLAYERS.indexOf(player), 1);
}
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