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Simplify "Collections" methods for the modern and underscore builds.

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Former-commit-id: 4ee5052537f7aed6816a886bee6da4e75c17099c
This commit is contained in:
John-David Dalton
2013-03-12 07:32:02 -07:00
parent 0b97b3864f
commit fef5e1ce2c
5 changed files with 166 additions and 110 deletions
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53
dist/lodash.underscore.js vendored
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@@ -385,19 +385,12 @@
var index, iterable = collection, result = iterable;
if (!iterable) return result;
callback = callback && typeof thisArg == 'undefined' ? callback : createCallback(callback, thisArg);
var length = iterable.length; index = -1;
if (typeof length == 'number') {
while (++index < length) {
if (callback(iterable[index], index, collection) === indicatorObject) return result
}
}
else {
for (index in iterable) {
if (hasOwnProperty.call(iterable, index)) {
if (callback(iterable[index], index, collection) === indicatorObject) return result;
}
}
}
};
/**
@@ -1598,10 +1591,10 @@
var result = true;
callback = createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
if (!(result = !!callback(collection[index], index, collection))) {
break;
@@ -1659,10 +1652,10 @@
var result = [];
callback = createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
var value = collection[index];
if (callback(value, index, collection)) {
@@ -1762,10 +1755,10 @@
* // => alerts each number value (order is not guaranteed)
*/
function forEach(collection, callback, thisArg) {
if (callback && typeof thisArg == 'undefined' && isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection ? collection.length : 0;
if (callback && typeof thisArg == 'undefined' && typeof length == 'number') {
while (++index < length) {
if (callback(collection[index], index, collection) === indicatorObject) {
break;
@@ -1897,15 +1890,16 @@
*/
function map(collection, callback, thisArg) {
var index = -1,
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
length = collection ? collection.length : 0;
callback = createCallback(callback, thisArg);
if (isArray(collection)) {
if (typeof length == 'number') {
var result = Array(length);
while (++index < length) {
result[index] = callback(collection[index], index, collection);
}
} else {
result = [];
each(collection, function(value, key, collection) {
result[++index] = callback(value, key, collection);
});
@@ -1956,10 +1950,10 @@
var computed = -Infinity,
result = computed;
if (!callback && isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection ? collection.length : 0;
if (!callback && typeof length == 'number') {
while (++index < length) {
var value = collection[index];
if (value > result) {
@@ -2023,10 +2017,10 @@
var computed = Infinity,
result = computed;
if (!callback && isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection ? collection.length : 0;
if (!callback && typeof length == 'number') {
while (++index < length) {
var value = collection[index];
if (value < result) {
@@ -2100,13 +2094,14 @@
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function reduce(collection, callback, accumulator, thisArg) {
if (!collection) return accumulator;
var noaccum = arguments.length < 3;
callback = createCallback(callback, thisArg, 4);
if (isArray(collection)) {
var index = -1,
length = collection.length;
var index = -1,
length = collection.length;
if (typeof length == 'number') {
if (noaccum) {
accumulator = collection[++index];
}