External module "utils/map2d/docs/types/index.d"

map2d

• map2d<T, U, V>(arr: Array2D<T>, fcn: Callback<T, U, V>, thisArg?: ThisParameterType<Callback<T, U, V>>): Array<Array<U>>

• Applies a function to each nested element in an array of arrays and assigns the result to a nested element in a new array of arrays.

  Notes

  • The applied function is provided the following arguments:

    • value: array element.
    • indices: current array element indices.
    • arr: input array.

  Type parameters

  • T

  • U

  • V

  Parameters

  • arr: Array2D<T>

    array of arrays

  • fcn: Callback<T, U, V>

    function to apply

  • Optional thisArg: ThisParameterType<Callback<T, U, V>>

    input function context

  Returns Array < Array < U > >

  array of arrays

  Example

  var naryFunction = require( '@stdlib/utils/nary-function' );
  var abs = require( '@stdlib/math/base/special/abs' );
  
  var arr = [
      [ -1, -2, -3 ],
      [ -4, -5, -6 ]
  ];
  
  var out = map2d( arr, naryFunction( abs, 1 ) );
  // returns [ [ 1, 2, 3 ], [ 4, 5, 6 ] ]