)
}
}
)
(
}
{
)
)
(
)
(
(
{
}
)
(
)
}
)
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{
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}
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}

Flatten Array Golf

  1.  
  2. console.log([100, 200, [2], [3, 4, [2, 3, [5]], 100]]+'')
  3. // outputs: "100,200,2,3,4,2,3,5,100"

Coercing a multidimensional array to a string flattens it and joins it with commas

snippet.zone ~ 2021-22 /// {s/z}