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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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40
dist/lodash.js vendored
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@@ -405,7 +405,7 @@
var eachIteratorOptions = {
'args': 'collection, callback, thisArg',
'top': "callback = callback && typeof thisArg == 'undefined' ? callback : lodash.createCallback(callback, thisArg)",
'arrays': "typeof length == 'number'",
'arrays': false,
'loop': 'if (callback(iterable[index], index, collection) === false) return result'
};
@@ -2175,10 +2175,10 @@
var result = true;
callback = lodash.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;
@@ -2236,10 +2236,10 @@
var result = [];
callback = lodash.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)) {
@@ -2335,10 +2335,10 @@
* // => 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) === false) {
break;
@@ -2471,15 +2471,16 @@
*/
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 = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
callback = createCallback(callback, thisArg);
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);
});
@@ -2545,7 +2546,7 @@
? charAtCallback
: lodash.createCallback(callback, thisArg);
each(collection, function(value, index, collection) {
forEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current > computed) {
computed = current;
@@ -2614,7 +2615,7 @@
? charAtCallback
: lodash.createCallback(callback, thisArg);
each(collection, function(value, index, collection) {
forEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current < computed) {
computed = current;
@@ -2678,13 +2679,14 @@
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function reduce(collection, callback, accumulator, thisArg) {
if (!collection) return accumulator;
var noaccum = arguments.length < 3;
callback = lodash.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];
}