mirror of https://gitee.com/bigwinds/arangodb
37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
var _curry3 = require('./internal/_curry3');
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var _reduce = require('./internal/_reduce');
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/**
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* Returns a single item by iterating through the list, successively calling the iterator
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* function and passing it an accumulator value and the current value from the array, and
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* then passing the result to the next call.
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*
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* The iterator function receives two values: *(acc, value)*. It may use `R.reduced` to
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* shortcut the iteration.
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*
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* Note: `R.reduce` does not skip deleted or unassigned indices (sparse arrays), unlike
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* the native `Array.prototype.reduce` method. For more details on this behavior, see:
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* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce#Description
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* @see R.reduced
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*
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* @func
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* @memberOf R
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* @category List
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* @sig (a,b -> a) -> a -> [b] -> a
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* @param {Function} fn The iterator function. Receives two values, the accumulator and the
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* current element from the array.
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* @param {*} acc The accumulator value.
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* @param {Array} list The list to iterate over.
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* @return {*} The final, accumulated value.
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* @example
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*
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* var numbers = [1, 2, 3];
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* var add = function(a, b) {
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* return a + b;
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* };
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*
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* R.reduce(add, 10, numbers); //=> 16
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*/
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module.exports = _curry3(_reduce);
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