Module array/map

map

• map<T, R>(fn: MapFunc<T, R>, arr: ArrayLike<T>): R[]
• map<T, R>(fn: MapFunc<T, R>): (arr: ArrayLike<T>) => R[]

• Creates an array of values by running each element in list through fn. The fn is invoked with three arguments: (value, index, arr).

  example

   var double = x => x * 2;
  
   map(double, [1, 2, 3]); //=> [2, 4, 6]
  

  Type parameters

  • T

  • R

  Parameters

  • fn: MapFunc<T, R>

    The function to be called on every element of the input list.

  • arr: ArrayLike<T>

    The list to be iterated over.

  Returns R[]

  The new list.

• Creates an array of values by running each element in list through fn. The fn is invoked with three arguments: (value, index, arr).

  example

   var double = x => x * 2;
  
   map(double, [1, 2, 3]); //=> [2, 4, 6]
  

  Type parameters

  • T

  • R

  Parameters

  • fn: MapFunc<T, R>

    The function to be called on every element of the input list.

  Returns (arr: ArrayLike<T>) => R[]

  The new list.

  • • (arr: ArrayLike<T>): R[]

    • Parameters

      • arr: ArrayLike<T>

      Returns R[]