Module array/findLast

findLast

• findLast<T>(fn: ArrPred<T>, list: ArrayLike<T>): T
• findLast<T>(fn: ArrPred<T>): (list: ArrayLike<T>) => T

• Returns the last element of the list which matches the predicate, or undefined if no element matches.

  example

   const xs = [{a: 1, b: 0}, {a:1, b: 1}];
  
   findLast(propEq('a', 1))(xs); //=> {a: 1, b: 1}
   findLast(propEq('a', 4))(xs); //=> undefined
  

  Type parameters

  • T

  Parameters

  • fn: ArrPred<T>

    The predicate function used to determine if the element is the desired one.

  • list: ArrayLike<T>

    The array to consider.

  Returns T

  The element found, or undefined.

• Returns the last element of the list which matches the predicate, or undefined if no element matches.

  example

   const xs = [{a: 1, b: 0}, {a:1, b: 1}];
  
   findLast(propEq('a', 1))(xs); //=> {a: 1, b: 1}
   findLast(propEq('a', 4))(xs); //=> undefined
  

  Type parameters

  • T

  Parameters

  • fn: ArrPred<T>

    The predicate function used to determine if the element is the desired one.

  Returns (list: ArrayLike<T>) => T

  The element found, or undefined.

  • • (list: ArrayLike<T>): T

    • Parameters

      • list: ArrayLike<T>

      Returns T