API IsSpellKnown

[Benalish]

From https://wowwiki-archive.fandom.com/w...I_IsSpellKnown

isKnown = IsSpellKnown(spellID, isPetSpell)

Arguments
spellID: integer - the spell ID number
isPetSpell: boolean (optional) - if true, will check if the currently active pet knows the spell; if false or omitted, will check if the player knows the spell

Returns
isKnown: boolean - whether the player (or pet) knows the given spell

For the spells I know, starting from their name I can get their ID via

GetSpellLink(name)

But I can't get the ID of a spell I don't know, so is there an alternative way to find out if I know a spell?