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{{alias}}( collection, initial, reducer[, thisArg] )
Applies a function against an accumulator and each element in a collection
and returns the accumulated result, iterating from right to left.
When invoked, the reduction function is provided four arguments:
- `accumulator`: accumulated value
- `value`: collection value
- `index`: collection index
- `collection`: the input collection
If provided an empty collection, the function returns the initial value.
Parameters
----------
collection: Array|TypedArray|Object
Input collection. If provided an object, the object must be array-like
(excluding strings and functions).
initial: any
Accumulator value used in the first invocation of the reduction
function.
reducer: Function
Function to invoke for each element in the input collection.
thisArg: any (optional)
Execution context.
Returns
-------
out: any
Accumulated result.
Examples
--------
> function sum( acc, v ) {
... console.log( '%s: %d', acc, v );
... return acc + v;
... };
> var arr = [ 1.0, 2.0, 3.0 ];
> var out = {{alias}}( arr, 0, sum );
2: 3.0
1: 2.0
0: 1.0
> out
6.0
See Also
--------
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