Module object/reduce

reduce

• reduce<R, O>(fn: ReduceFunc<R, O>, acc: R, obj: O): R
• reduce<R>(fn: ReduceFunc<R, any>, acc: R): (obj: any) => R
• reduce(fn: ReduceFunc<any, any>): { <R>(acc: R, obj: any): R; <R>(acc: R): (obj: any) => R }

• Returns a single item by iterating through the obj, successively calling the iterable function and passing it an accumulator value, current value and current key from the obj, and then passing the result to the next call.

  example

   var obj = { a: 1, b: 2, c: 3};
   var plus = (a, b) => a + b;
  
   reduce(plus, 10, obj); //=> 16
  

  Type parameters

  • R

  • O: Record<any, any>

  Parameters

  • fn: ReduceFunc<R, O>

    The iterable function. Receives three argument, accumulator, value, key.

  • acc: R

    The accumulator value.

  • obj: O

    The object to iterate over.

  Returns R

  The final, accumulated value.

• Returns a single item by iterating through the obj, successively calling the iterable function and passing it an accumulator value, current value and current key from the obj, and then passing the result to the next call.

  example

   var obj = { a: 1, b: 2, c: 3};
   var plus = (a, b) => a + b;
  
   reduce(plus, 10, obj); //=> 16
  

  Type parameters

  • R

  Parameters

  • fn: ReduceFunc<R, any>

    The iterable function. Receives three argument, accumulator, value, key.

  • acc: R

    The accumulator value.

  Returns (obj: any) => R

  The final, accumulated value.

  • • (obj: any): R

    • Parameters

      • obj: any

      Returns R

• Returns a single item by iterating through the obj, successively calling the iterable function and passing it an accumulator value, current value and current key from the obj, and then passing the result to the next call.

  example

   var obj = { a: 1, b: 2, c: 3};
   var plus = (a, b) => a + b;
  
   reduce(plus, 10, obj); //=> 16
  

  Parameters

  • fn: ReduceFunc<any, any>

    The iterable function. Receives three argument, accumulator, value, key.

  Returns { <R>(acc: R, obj: any): R; <R>(acc: R): (obj: any) => R }

  The final, accumulated value.

  • • <R>(acc: R, obj: any): R
    • <R>(acc: R): (obj: any) => R

    • Type parameters

      • R

      Parameters

      • acc: R

      • obj: any

      Returns R

    • Type parameters

      • R

      Parameters

      • acc: R

      Returns (obj: any) => R

      • • (obj: any): R

        • Parameters

          • obj: any

          Returns R