D
Size: a a a
AK
DE
AA
DE
DE
AA
DE
AA
DE
DN
AK
DN
AK
DN
DN
DE
Object.entries(array.reduce((acc, cur) => {
acc[cur] = acc[cur] || 0
acc[cur] += 1
}, {}))
.filter(([key, value]) => value === 1)
.map(([key]) => key)
S
Object.entries(array.reduce((acc, cur) => {
acc[cur] = acc[cur] || 0
acc[cur] += 1
}, {}))
.filter(([key, value]) => value === 1)
.map(([key]) => key)
DE
Object.entries(array.map(({ d: direction }) => d)
.reduce((acc, cur) => {
acc[cur] = acc[cur] || 0
acc[cur] += 1
}, {}))
.filter(([key, value]) => value === 1)
.map(([key]) => key)