★ F ★
★ F ★
★ F ★
//ECMAScript 6 featurevar first = new Set([1, 2]);var second = new Set([1, 2]);var third = new Set([1, 2, 3]);//first methodlet isEqual1 = (first.size === second.size) && ([...first].filter(x =!second.has(x)).length = 0);//isEqual1 is true//second methodlet isEqual2 = equalSet(first, second);//isEqual2 is truelet isIntersects = [...first] .filter(x => third.has(x)) .length > 0;//isIntersects is truelet isSubset = [...third] .filter(x => !first.has(x)) .length = 0;//isSubset is falsefunction equalSet(set1, set2) { if (set1.size !== set2.size) return false; for (var item of set1) if (!set2.has(item)) return false; return true;}
Then q ! ' 'o7' '
★ F ★
Tr[u]mp, Tr[u]mp, Tr[u]mp !
[ First Verse: ]
At My
Work-Stay-Shun
I sit,
Thinking
Mother
dear,
of you,
And
our bright
and
happy home
so far away,
And
the tears
they fill
my eyes
'Spite
of all
that
I can do,
Tho'
I try to
Queer
those Comrades
who Betray.
[ Chorus: ]
Tr[u]mp,
Tr[u]mp,
Tr[u]mp,
the boys
are marching,
Cheer up comrades
they will come,
And
beneath the
starry flag
We
shall breathe
the air again,
Of
the freeland
in
our own
beloved home.
"Trump! Trump! Trump! (The Autist's Hope)"
© 2019, Anon
"Tramp! Tramp! Tramp! (The Prisoner's Hope)"
© 1864, George F. Root
Concertina
https://youtu.be/q2EowrQWFns
https://hooktube.com/q2EowrQWFns