Array API: array.flat()

array.flat() creates an array with all sub-array elements concatenated recursively

Links

mdn docs Description of array.flat() on MDN.
article Blog post on flat and flatMap, on the v8 blog.
article "#SmooshGate FAQ"

Related Katas

Array API

• array.sort() basics
• array.sort() can take a compare function
• array.shift() (as introduced in ES3)
• array.push() (as introduced in ES3)
• Array.from()
• Array.of()
• array.fill()
• array.find()
• array.findIndex()
• array.entries()
• array.keys()
• array.values()
• array.includes()
• array.toReversed()

Difficulty Level

INTERMEDIATE