some matrix generators (for Oleg)

someMatrix.js

const genMatrix = (args) => {  
    return Array.isArray(args) ? args.map((item) => genMatrix(item)) 
      : Array.apply(null, {length: args}).map(() => false)
}

const genMatrix2 = (args) => {
  if (Array.isArray(args)) {
    return args.map((item) => genMatrix2(item))
  } 
  else {
    return Array.apply(null, {length: args}).map(() => false)
  }  
}

const genMatrix3 = (x, y) => {
  return Array.apply(null, {length: x}).map(() => {
    return Array.apply(null, {length: y}).map(() => false)
  })
}

console.log(genMatrix([3, 2]))

console.log(genMatrix2([3, 2]))

console.log(genMatrix3(3, 2))