const toUpperCase = (chunks) = {
The “Knocking on Wood” Wikipedia page mentions Roud’s conclusion, and this claim of a 19th century origin has circulated online as the final say on the matter. If you go back to the original, though, Roud’s proposal actually ends on an ambivalent note: “Before this theory [of 19th century origins] can be finally accepted, however, an examination of the history of European forms of this custom would be advisable.”
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She thinks discussion is the way forward.
"I didn't realise it would be so guitar heavy. Obviously his mum's a singer, and I thought he would just be a frontman. It seems he's got this little 60s twang, so I suppose he's trying to break away from that pop culture that his mum created in the 90s."
const sp = speed[i];