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Reduce _.reduceRight and update vendors.

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Former-commit-id: f7250ccb4b8f15052c1f1420947c2ac68963a92c
This commit is contained in:
John-David Dalton
2012-09-20 21:06:32 -07:00
parent 5afeed56ef
commit 473dd7660b
8 changed files with 130 additions and 120 deletions
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2
build.js
View File

@@ -133,7 +133,7 @@
'random': [],
'range': [],
'reduce': [],
'reduceRight': ['keys'],
'reduceRight': ['keys', 'reduce'],
'reject': ['identity'],
'rest': [],
'result': ['isFunction'],

38
lodash.js
View File

@@ -2220,39 +2220,19 @@
if (!collection) {
return accumulator;
}
var length = collection.length,
noaccum = arguments.length < 3;
if(thisArg) {
callback = bindIterator(callback, thisArg);
if (length !== +length) {
var props = keys(collection);
length = props.length;
}
if (length === +length) {
var iteratee = noCharByIndex && toString.call(collection) == stringClass
? collection.split('')
: collection;
if (length && noaccum) {
accumulator = iteratee[--length];
}
while (length--) {
accumulator = callback(accumulator, iteratee[length], length, collection);
}
return accumulator;
}
var prop,
props = keys(collection);
length = props.length;
if (length && noaccum) {
accumulator = collection[props[--length]];
}
while (length--) {
prop = props[length];
accumulator = callback(accumulator, collection[prop], prop, collection);
}
return accumulator;
return reduce(collection, function(accumulator, value, index, object) {
var index = props ? props[--length] : --length;
return noaccum
? (noaccum = false, object[index])
: callback.call(thisArg, accumulator, object[index], index, object);
}, accumulator);
}
/**

56
lodash.min.js vendored
View File

@@ -10,31 +10,31 @@ a.m.i+"}}else{"),a.h||(t+="var v=typeof k=='function'&&r.call(k,'prototype');");
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e.length;return t===+t?(Nt?tt.call(e)==gt:"string"==typeof e)?e.split(""):et.call(e):fn(e)},s.unescape=function(e){return e==r?"":(e+"").replace(I,v)},s.union=function(){for(var e=-1,t=Q.apply(D,arguments),n=t.length,r=[];++e<n;)0>T(r,t[e])&&r.push(t[e]);return r},s.uniq=L,s.uniqueId=function(e){var t=H++;return e?e+t:t},s.values=fn,s.where=Tn,s.without=function(e){var t=[];if(!e)return t;for(var n=-1,r=e.length,i=a(arguments,1,20);++n<r;)i(e[n])||t.push(e[n]);return t},s.wrap=function(e,t){return function(
){var n=[e];return arguments.length&&Y.apply(n,arguments),t.apply(this,n)}},s.zip=function(e){if(!e)return[];for(var t=-1,n=N(bn(arguments,"length")),r=Array(n);++t<n;)r[t]=bn(arguments,t);return r},s.all=hn,s.any=Sn,s.collect=yn,s.detect=dn,s.drop=C,s.each=vn,s.foldl=wn,s.foldr=E,s.head=S,s.include=ln,s.inject=wn,s.methods=en,s.select=pn,s.tail=C,s.take=S,s.unique=L,vn({Date:pt,Number:dt,RegExp:mt,String:gt},function(e,t){s["is"+t]=function(t){return tt.call(t)==e}}),o.prototype=s.prototype,M(s)
,o.prototype.chain=function(){return this.__chain__=n,this},o.prototype.value=function(){return this.__wrapped__},vn("pop push reverse shift sort splice unshift".split(" "),function(e){var t=D[e];o.prototype[e]=function(){var e=this.__wrapped__;return t.apply(e,arguments),Et&&e.length===0&&delete e[0],this.__chain__&&(e=new o(e),e.__chain__=n),e}}),vn(["concat","join","slice"],function(e){var t=D[e];o.prototype[e]=function(){var e=t.apply(this.__wrapped__,arguments);return this.__chain__&&(e=new
o(e),e.__chain__=n),e}}),typeof define=="function"&&typeof define.amd=="object"&&define.amd?(e._=s,define(function(){return s})):_?"object"==typeof module&&module&&module.exports==_?(module.exports=s)._=s:_._=s:e._=s})(this);

8
vendor/underscore/test/arrays.js vendored
View File

@@ -157,6 +157,10 @@ $(document).ready(function() {
numbers = [1, 40, 40, 40, 40, 40, 40, 40, 50, 60, 70]; num = 40;
index = _.indexOf(numbers, num, true);
equal(index, 1, '40 is in the list');
numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
index = _.indexOf(numbers, 2, 5);
equal(index, 7, 'supports the fromIndex argument');
});
test("lastIndexOf", function() {
@@ -167,6 +171,10 @@ $(document).ready(function() {
var result = (function(){ return _.lastIndexOf(arguments, 1); })(1, 0, 1, 0, 0, 1, 0, 0, 0);
equal(result, 5, 'works on an arguments object');
equal(_.indexOf(null, 2), -1, 'handles nulls properly');
numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
index = _.lastIndexOf(numbers, 2, 2);
equal(index, 1, 'supports the fromIndex argument');
});
test("range", function() {

16
vendor/underscore/test/collections.js vendored
View File

@@ -107,6 +107,9 @@ $(document).ready(function() {
}
ok(ifnull instanceof TypeError, 'handles a null (without inital value) properly');
var sum = _.reduceRight({a: 1, b: 2, c: 3}, function(sum, num){ return sum + num; });
equal(sum, 6, 'default initial value on object');
ok(_.reduceRight(null, function(){}, 138) === 138, 'handles a null (with initial value) properly');
equal(_.reduceRight([], function(){}, undefined), undefined, 'undefined can be passed as a special case');
@@ -326,6 +329,13 @@ $(document).ready(function() {
var context = {};
_.groupBy([{}], function(){ ok(this === context); }, context);
grouped = _.groupBy([4.2, 6.1, 6.4], function(num) {
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
});
equal(grouped.constructor.length, 1);
equal(grouped.hasOwnProperty.length, 2);
});
test('countBy', function() {
@@ -341,6 +351,12 @@ $(document).ready(function() {
var context = {};
_.countBy([{}], function(){ ok(this === context); }, context);
grouped = _.countBy([4.2, 6.1, 6.4], function(num) {
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
});
equal(grouped.constructor, 1);
equal(grouped.hasOwnProperty, 2);
});
test('sortedIndex', function() {

7
vendor/underscore/test/objects.js vendored
View File

@@ -15,17 +15,22 @@ $(document).ready(function() {
});
test("values", function() {
equal(_.values({one : 1, two : 2}).join(', '), '1, 2', 'can extract the values from an object');
equal(_.values({one: 1, two: 2}).join(', '), '1, 2', 'can extract the values from an object');
equal(_.values({one: 1, two: 2, length: 3}).join(', '), '1, 2, 3', '... even when one of them is "length"');
});
test("pairs", function() {
deepEqual(_.pairs({one: 1, two: 2}), [['one', 1], ['two', 2]], 'can convert an object into pairs');
deepEqual(_.pairs({one: 1, two: 2, length: 3}), [['one', 1], ['two', 2], ['length', 3]], '... even when one of them is "length"');
});
test("invert", function() {
var obj = {first: 'Moe', second: 'Larry', third: 'Curly'};
equal(_.keys(_.invert(obj)).join(' '), 'Moe Larry Curly', 'can invert an object');
ok(_.isEqual(_.invert(_.invert(obj)), obj), 'two inverts gets you back where you started');
var obj = {length: 3};
ok(_.invert(obj)['3'] == 'length', 'can invert an object with "length"')
});
test("functions", function() {

34
vendor/underscore/underscore-min.js vendored
View File

File diff suppressed because one or more lines are too long

89
vendor/underscore/underscore.js vendored
View File

@@ -105,9 +105,12 @@
return results;
};
// Internal data flag for performing `reduceRight`.
var right = null;
// **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context, right) {
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (!right && nativeReduce && obj.reduce === nativeReduce) {
@@ -133,14 +136,18 @@
// The right-associative version of reduce, also known as `foldr`.
// Delegates to **ECMAScript 5**'s native `reduceRight` if available.
_.reduceRight = _.foldr = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
if (context) iterator = _.bind(iterator, context);
return arguments.length > 2 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
}
var keys = _.keys(obj).reverse();
var values = _.toArray(obj).reverse();
return _.reduce(values, iterator, memo, context, {keys: keys, list: obj});
var values = _.toArray(obj).reverse();
if (context && !initial) iterator = _.bind(iterator, context);
right = {keys: _.keys(obj).reverse(), list: obj};
var result = initial ? _.reduce(values, iterator, memo, context) : _.reduce(values, iterator);
right = null;
return result;
};
// Return the first value which passes a truth test. Aliased as `detect`.
@@ -206,9 +213,9 @@
return !!result;
};
// Determine if a given value is included in the array or object using `===`.
// Aliased as `contains`.
_.include = _.contains = function(obj, target) {
// Determine if the array or object contains a given value (using `===`).
// Aliased as `include`.
_.contains = _.include = function(obj, target) {
var found = false;
if (obj == null) return found;
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
@@ -326,7 +333,7 @@
// to group by, or a function that returns the criterion.
_.groupBy = function(obj, value, context) {
return group(obj, value, context, function(result, key, value) {
(result[key] || (result[key] = [])).push(value);
(_.has(result, key) ? result[key] : (result[key] = [])).push(value);
});
};
@@ -335,20 +342,20 @@
// criterion.
_.countBy = function(obj, value, context) {
return group(obj, value, context, function(result, key, value) {
result[key] || (result[key] = 0);
if (!_.has(result, key)) result[key] = 0;
result[key]++;
});
};
// Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iterator) {
_.sortedIndex = function(array, obj, iterator, context) {
iterator || (iterator = _.identity);
var value = iterator(obj);
var value = iterator.call(context, obj);
var low = 0, high = array.length;
while (low < high) {
var mid = (low + high) >> 1;
iterator(array[mid]) < value ? low = mid + 1 : high = mid;
var mid = (low + high) >>> 1;
iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
}
return low;
};
@@ -431,12 +438,12 @@
// Produce a duplicate-free version of the array. If the array has already
// been sorted, you have the option of using a faster algorithm.
// Aliased as `unique`.
_.uniq = _.unique = function(array, isSorted, iterator) {
var initial = iterator ? _.map(array, iterator) : array;
_.uniq = _.unique = function(array, isSorted, iterator, context) {
var initial = iterator ? _.map(array, iterator, context) : array;
var results = [];
var seen = [];
each(initial, function(value, index) {
if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.include(seen, value)) {
if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
seen.push(value);
results.push(array[index]);
}
@@ -465,7 +472,7 @@
// Only the elements present in just the first array will remain.
_.difference = function(array) {
var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
return _.filter(array, function(value){ return !_.include(rest, value); });
return _.filter(array, function(value){ return !_.contains(rest, value); });
};
// Zip together multiple lists into a single array -- elements that share
@@ -503,21 +510,25 @@
// for **isSorted** to use binary search.
_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i, l;
var i = 0, l = array.length;
if (isSorted) {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
if (typeof isSorted == 'number') {
i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted);
} else {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
}
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
for (i = 0, l = array.length; i < l; i++) if (array[i] === item) return i;
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
for (; i < l; i++) if (array[i] === item) return i;
return -1;
};
// Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
_.lastIndexOf = function(array, item) {
_.lastIndexOf = function(array, item, fromIndex) {
if (array == null) return -1;
if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
var i = array.length;
if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item, fromIndex);
var i = (fromIndex != null ? fromIndex : array.length);
while (i--) if (array[i] === item) return i;
return -1;
};
@@ -708,22 +719,23 @@
// Retrieve the values of an object's properties.
_.values = function(obj) {
return _.map(obj, _.identity);
var values = [];
for (var key in obj) if (_.has(obj, key)) values.push(obj[key]);
return values;
};
// Convert an object into a list of `[key, value]` pairs.
_.pairs = function(obj) {
return _.map(obj, function(value, key) {
return [key, value];
});
var pairs = [];
for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]);
return pairs;
};
// Invert the keys and values of an object. The values must be serializable.
_.invert = function(obj) {
return _.reduce(obj, function(memo, value, key) {
memo[value] = key;
return memo;
}, {});
var result = {};
for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key;
return result;
};
// Return a sorted list of the function names available on the object.
@@ -761,7 +773,7 @@
var copy = {};
var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
for (var key in obj) {
if (!_.include(keys, key)) copy[key] = obj[key];
if (!_.contains(keys, key)) copy[key] = obj[key];
}
return copy;
};
@@ -897,7 +909,7 @@
// Is a given value a DOM element?
_.isElement = function(obj) {
return !!(obj && obj.nodeType == 1);
return !!(obj && obj.nodeType === 1);
};
// Is a given value an array?
@@ -926,6 +938,13 @@
};
}
// Optimize `isFunction` if appropriate.
if (typeof (/./) !== 'function') {
_.isFunction = function(obj) {
return typeof obj === 'function';
};
}
// Is a given object a finite number?
_.isFinite = function(obj) {
return _.isNumber(obj) && isFinite(obj);