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(breaking change) moving _.reduce's method signature to that of ECMA5. _.reduce(obj, iterator, memo). Updated tests and docs.

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Jeremy Ashkenas
2010-07-15 09:50:55 -04:00
parent e81a2ec516
commit 9827f87611
4 changed files with 28 additions and 22 deletions
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10
test/collections.js
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@@ -53,22 +53,22 @@ $(document).ready(function() {
});
test('collections: reduce', function() {
var sum = _.reduce([1, 2, 3], 0, function(sum, num){ return sum + num; });
var sum = _.reduce([1, 2, 3], function(sum, num){ return sum + num; }, 0);
equals(sum, 6, 'can sum up an array');
var context = {multiplier : 3};
sum = _.reduce([1, 2, 3], 0, function(sum, num){ return sum + num * this.multiplier; }, context);
sum = _.reduce([1, 2, 3], function(sum, num){ return sum + num * this.multiplier; }, 0, context);
equals(sum, 18, 'can reduce with a context object');
sum = _.inject([1, 2, 3], 0, function(sum, num){ return sum + num; });
sum = _.inject([1, 2, 3], function(sum, num){ return sum + num; }, 0);
equals(sum, 6, 'aliased as "inject"');
sum = _([1, 2, 3]).reduce(0, function(sum, num){ return sum + num; });
sum = _([1, 2, 3]).reduce(function(sum, num){ return sum + num; }, 0);
equals(sum, 6, 'OO-style reduce');
});
test('collections: reduceRight', function() {
var list = _.foldr([1, 2, 3], '', function(memo, num){ return memo + num; });
var list = _.foldr([1, 2, 3], function(memo, num){ return memo + num; }, '');
equals(list, '321', 'can perform right folds');
});