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21 lines
569 B
21 lines
569 B
var baseEach = require('./baseEach');
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/**
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* The base implementation of `_.sum` without support for callback shorthands
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* and `this` binding.
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*
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* @private
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* @param {Array|Object|string} collection The collection to iterate over.
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* @param {Function} iteratee The function invoked per iteration.
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* @returns {number} Returns the sum.
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*/
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function baseSum(collection, iteratee) {
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var result = 0;
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baseEach(collection, function(value, index, collection) {
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result += +iteratee(value, index, collection) || 0;
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});
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return result;
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}
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module.exports = baseSum;
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