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- (function() {
-
-
-
- var root = this;
-
- var previousUnderscore = root._;
-
- var breaker = {};
-
- var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
-
- var slice = ArrayProto.slice,
- unshift = ArrayProto.unshift,
- toString = ObjProto.toString,
- hasOwnProperty = ObjProto.hasOwnProperty;
-
-
- var
- nativeForEach = ArrayProto.forEach,
- nativeMap = ArrayProto.map,
- nativeReduce = ArrayProto.reduce,
- nativeReduceRight = ArrayProto.reduceRight,
- nativeFilter = ArrayProto.filter,
- nativeEvery = ArrayProto.every,
- nativeSome = ArrayProto.some,
- nativeIndexOf = ArrayProto.indexOf,
- nativeLastIndexOf = ArrayProto.lastIndexOf,
- nativeIsArray = Array.isArray,
- nativeKeys = Object.keys,
- nativeBind = FuncProto.bind;
-
- var _ = function(obj) { return new wrapper(obj); };
-
-
-
-
- if (typeof exports !== 'undefined') {
- if (typeof module !== 'undefined' && module.exports) {
- exports = module.exports = _;
- }
- exports._ = _;
- } else {
- root['_'] = _;
- }
-
- _.VERSION = '1.3.1';
-
-
-
-
-
- var each = _.each = _.forEach = function(obj, iterator, context) {
- if (obj == null) return;
- if (nativeForEach && obj.forEach === nativeForEach) {
- obj.forEach(iterator, context);
- } else if (obj.length === +obj.length) {
- for (var i = 0, l = obj.length; i < l; i++) {
- if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return;
- }
- } else {
- for (var key in obj) {
- if (_.has(obj, key)) {
- if (iterator.call(context, obj[key], key, obj) === breaker) return;
- }
- }
- }
- };
-
-
- _.map = _.collect = function(obj, iterator, context) {
- var results = [];
- if (obj == null) return results;
- if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
- each(obj, function(value, index, list) {
- results[results.length] = iterator.call(context, value, index, list);
- });
- if (obj.length === +obj.length) results.length = obj.length;
- return results;
- };
-
-
- _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
- var initial = arguments.length > 2;
- if (obj == null) obj = [];
- if (nativeReduce && obj.reduce === nativeReduce) {
- if (context) iterator = _.bind(iterator, context);
- return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
- }
- each(obj, function(value, index, list) {
- if (!initial) {
- memo = value;
- initial = true;
- } else {
- memo = iterator.call(context, memo, value, index, list);
- }
- });
- if (!initial) throw new TypeError('Reduce of empty array with no initial value');
- return memo;
- };
-
-
- _.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 initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
- }
- var reversed = _.toArray(obj).reverse();
- if (context && !initial) iterator = _.bind(iterator, context);
- return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator);
- };
-
- _.find = _.detect = function(obj, iterator, context) {
- var result;
- any(obj, function(value, index, list) {
- if (iterator.call(context, value, index, list)) {
- result = value;
- return true;
- }
- });
- return result;
- };
-
-
-
- _.filter = _.select = function(obj, iterator, context) {
- var results = [];
- if (obj == null) return results;
- if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
- each(obj, function(value, index, list) {
- if (iterator.call(context, value, index, list)) results[results.length] = value;
- });
- return results;
- };
-
- _.reject = function(obj, iterator, context) {
- var results = [];
- if (obj == null) return results;
- each(obj, function(value, index, list) {
- if (!iterator.call(context, value, index, list)) results[results.length] = value;
- });
- return results;
- };
-
-
-
- _.every = _.all = function(obj, iterator, context) {
- var result = true;
- if (obj == null) return result;
- if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
- each(obj, function(value, index, list) {
- if (!(result = result && iterator.call(context, value, index, list))) return breaker;
- });
- return result;
- };
-
-
-
- var any = _.some = _.any = function(obj, iterator, context) {
- iterator || (iterator = _.identity);
- var result = false;
- if (obj == null) return result;
- if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
- each(obj, function(value, index, list) {
- if (result || (result = iterator.call(context, value, index, list))) return breaker;
- });
- return !!result;
- };
-
-
- _.include = _.contains = function(obj, target) {
- var found = false;
- if (obj == null) return found;
- if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
- found = any(obj, function(value) {
- return value === target;
- });
- return found;
- };
-
- _.invoke = function(obj, method) {
- var args = slice.call(arguments, 2);
- return _.map(obj, function(value) {
- return (_.isFunction(method) ? method || value : value[method]).apply(value, args);
- });
- };
-
- _.pluck = function(obj, key) {
- return _.map(obj, function(value){ return value[key]; });
- };
-
- _.max = function(obj, iterator, context) {
- if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj);
- if (!iterator && _.isEmpty(obj)) return -Infinity;
- var result = {computed : -Infinity};
- each(obj, function(value, index, list) {
- var computed = iterator ? iterator.call(context, value, index, list) : value;
- computed >= result.computed && (result = {value : value, computed : computed});
- });
- return result.value;
- };
-
- _.min = function(obj, iterator, context) {
- if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj);
- if (!iterator && _.isEmpty(obj)) return Infinity;
- var result = {computed : Infinity};
- each(obj, function(value, index, list) {
- var computed = iterator ? iterator.call(context, value, index, list) : value;
- computed < result.computed && (result = {value : value, computed : computed});
- });
- return result.value;
- };
-
- _.shuffle = function(obj) {
- var shuffled = [], rand;
- each(obj, function(value, index, list) {
- if (index == 0) {
- shuffled[0] = value;
- } else {
- rand = Math.floor(Math.random() * (index + 1));
- shuffled[index] = shuffled[rand];
- shuffled[rand] = value;
- }
- });
- return shuffled;
- };
-
- _.sortBy = function(obj, iterator, context) {
- return _.pluck(_.map(obj, function(value, index, list) {
- return {
- value : value,
- criteria : iterator.call(context, value, index, list)
- };
- }).sort(function(left, right) {
- var a = left.criteria, b = right.criteria;
- return a < b ? -1 : a > b ? 1 : 0;
- }), 'value');
- };
-
-
- _.groupBy = function(obj, val) {
- var result = {};
- var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; };
- each(obj, function(value, index) {
- var key = iterator(value, index);
- (result[key] || (result[key] = [])).push(value);
- });
- return result;
- };
-
-
- _.sortedIndex = function(array, obj, iterator) {
- iterator || (iterator = _.identity);
- var low = 0, high = array.length;
- while (low < high) {
- var mid = (low + high) >> 1;
- iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid;
- }
- return low;
- };
-
- _.toArray = function(iterable) {
- if (!iterable) return [];
- if (iterable.toArray) return iterable.toArray();
- if (_.isArray(iterable)) return slice.call(iterable);
- if (_.isArguments(iterable)) return slice.call(iterable);
- return _.values(iterable);
- };
-
- _.size = function(obj) {
- return _.toArray(obj).length;
- };
-
-
-
-
-
- _.first = _.head = function(array, n, guard) {
- return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
- };
-
-
-
-
- _.initial = function(array, n, guard) {
- return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
- };
-
-
- _.last = function(array, n, guard) {
- if ((n != null) && !guard) {
- return slice.call(array, Math.max(array.length - n, 0));
- } else {
- return array[array.length - 1];
- }
- };
-
-
-
-
- _.rest = _.tail = function(array, index, guard) {
- return slice.call(array, (index == null) || guard ? 1 : index);
- };
-
- _.compact = function(array) {
- return _.filter(array, function(value){ return !!value; });
- };
-
- _.flatten = function(array, shallow) {
- return _.reduce(array, function(memo, value) {
- if (_.isArray(value)) return memo.concat(shallow ? value : _.flatten(value));
- memo[memo.length] = value;
- return memo;
- }, []);
- };
-
- _.without = function(array) {
- return _.difference(array, slice.call(arguments, 1));
- };
-
-
-
- _.uniq = _.unique = function(array, isSorted, iterator) {
- var initial = iterator ? _.map(array, iterator) : array;
- var result = [];
- _.reduce(initial, function(memo, el, i) {
- if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) {
- memo[memo.length] = el;
- result[result.length] = array[i];
- }
- return memo;
- }, []);
- return result;
- };
-
-
- _.union = function() {
- return _.uniq(_.flatten(arguments, true));
- };
-
-
- _.intersection = _.intersect = function(array) {
- var rest = slice.call(arguments, 1);
- return _.filter(_.uniq(array), function(item) {
- return _.every(rest, function(other) {
- return _.indexOf(other, item) >= 0;
- });
- });
- };
-
-
- _.difference = function(array) {
- var rest = _.flatten(slice.call(arguments, 1));
- return _.filter(array, function(value){ return !_.include(rest, value); });
- };
-
-
- _.zip = function() {
- var args = slice.call(arguments);
- var length = _.max(_.pluck(args, 'length'));
- var results = new Array(length);
- for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
- return results;
- };
-
-
-
-
-
-
- _.indexOf = function(array, item, isSorted) {
- if (array == null) return -1;
- var i, l;
- if (isSorted) {
- 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 (i in array && array[i] === item) return i;
- return -1;
- };
-
- _.lastIndexOf = function(array, item) {
- if (array == null) return -1;
- if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
- var i = array.length;
- while (i--) if (i in array && array[i] === item) return i;
- return -1;
- };
-
-
-
- _.range = function(start, stop, step) {
- if (arguments.length <= 1) {
- stop = start || 0;
- start = 0;
- }
- step = arguments[2] || 1;
- var len = Math.max(Math.ceil((stop - start) / step), 0);
- var idx = 0;
- var range = new Array(len);
- while(idx < len) {
- range[idx++] = start;
- start += step;
- }
- return range;
- };
-
-
-
- var ctor = function(){};
-
-
-
-
- _.bind = function bind(func, context) {
- var bound, args;
- if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
- if (!_.isFunction(func)) throw new TypeError;
- args = slice.call(arguments, 2);
- return bound = function() {
- if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
- ctor.prototype = func.prototype;
- var self = new ctor;
- var result = func.apply(self, args.concat(slice.call(arguments)));
- if (Object(result) === result) return result;
- return self;
- };
- };
-
-
- _.bindAll = function(obj) {
- var funcs = slice.call(arguments, 1);
- if (funcs.length == 0) funcs = _.functions(obj);
- each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
- return obj;
- };
-
- _.memoize = function(func, hasher) {
- var memo = {};
- hasher || (hasher = _.identity);
- return function() {
- var key = hasher.apply(this, arguments);
- return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
- };
- };
-
-
- _.delay = function(func, wait) {
- var args = slice.call(arguments, 2);
- return setTimeout(function(){ return func.apply(func, args); }, wait);
- };
-
-
- _.defer = function(func) {
- return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
- };
-
-
- _.throttle = function(func, wait) {
- var context, args, timeout, throttling, more;
- var whenDone = _.debounce(function(){ more = throttling = false; }, wait);
- return function() {
- context = this; args = arguments;
- var later = function() {
- timeout = null;
- if (more) func.apply(context, args);
- whenDone();
- };
- if (!timeout) timeout = setTimeout(later, wait);
- if (throttling) {
- more = true;
- } else {
- func.apply(context, args);
- }
- whenDone();
- throttling = true;
- };
- };
-
-
-
- _.debounce = function(func, wait) {
- var timeout;
- return function() {
- var context = this, args = arguments;
- var later = function() {
- timeout = null;
- func.apply(context, args);
- };
- clearTimeout(timeout);
- timeout = setTimeout(later, wait);
- };
- };
-
-
- _.once = function(func) {
- var ran = false, memo;
- return function() {
- if (ran) return memo;
- ran = true;
- return memo = func.apply(this, arguments);
- };
- };
-
-
-
- _.wrap = function(func, wrapper) {
- return function() {
- var args = [func].concat(slice.call(arguments, 0));
- return wrapper.apply(this, args);
- };
- };
-
-
- _.compose = function() {
- var funcs = arguments;
- return function() {
- var args = arguments;
- for (var i = funcs.length - 1; i >= 0; i--) {
- args = [funcs[i].apply(this, args)];
- }
- return args[0];
- };
- };
-
- _.after = function(times, func) {
- if (times <= 0) return func();
- return function() {
- if (--times < 1) { return func.apply(this, arguments); }
- };
- };
-
-
-
-
- _.keys = nativeKeys || function(obj) {
- if (obj !== Object(obj)) throw new TypeError('Invalid object');
- var keys = [];
- for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
- return keys;
- };
-
- _.values = function(obj) {
- return _.map(obj, _.identity);
- };
-
-
- _.functions = _.methods = function(obj) {
- var names = [];
- for (var key in obj) {
- if (_.isFunction(obj[key])) names.push(key);
- }
- return names.sort();
- };
-
- _.extend = function(obj) {
- each(slice.call(arguments, 1), function(source) {
- for (var prop in source) {
- obj[prop] = source[prop];
- }
- });
- return obj;
- };
-
- _.defaults = function(obj) {
- each(slice.call(arguments, 1), function(source) {
- for (var prop in source) {
- if (obj[prop] == null) obj[prop] = source[prop];
- }
- });
- return obj;
- };
-
- _.clone = function(obj) {
- if (!_.isObject(obj)) return obj;
- return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
- };
-
-
-
- _.tap = function(obj, interceptor) {
- interceptor(obj);
- return obj;
- };
-
- function eq(a, b, stack) {
-
-
- if (a === b) return a !== 0 || 1 / a == 1 / b;
-
- if (a == null || b == null) return a === b;
-
- if (a._chain) a = a._wrapped;
- if (b._chain) b = b._wrapped;
-
- if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b);
- if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a);
-
- var className = toString.call(a);
- if (className != toString.call(b)) return false;
- switch (className) {
-
- case '[object String]':
-
-
- return a == String(b);
- case '[object Number]':
-
-
- return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
- case '[object Date]':
- case '[object Boolean]':
-
-
-
- return +a == +b;
-
- case '[object RegExp]':
- return a.source == b.source &&
- a.global == b.global &&
- a.multiline == b.multiline &&
- a.ignoreCase == b.ignoreCase;
- }
- if (typeof a != 'object' || typeof b != 'object') return false;
-
-
- var length = stack.length;
- while (length--) {
-
-
- if (stack[length] == a) return true;
- }
-
- stack.push(a);
- var size = 0, result = true;
-
- if (className == '[object Array]') {
-
- size = a.length;
- result = size == b.length;
- if (result) {
-
- while (size--) {
-
- if (!(result = size in a == size in b && eq(a[size], b[size], stack))) break;
- }
- }
- } else {
-
- if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false;
-
- for (var key in a) {
- if (_.has(a, key)) {
-
- size++;
-
- if (!(result = _.has(b, key) && eq(a[key], b[key], stack))) break;
- }
- }
-
- if (result) {
- for (key in b) {
- if (_.has(b, key) && !(size--)) break;
- }
- result = !size;
- }
- }
-
- stack.pop();
- return result;
- }
-
- _.isEqual = function(a, b) {
- return eq(a, b, []);
- };
-
-
- _.isEmpty = function(obj) {
- if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
- for (var key in obj) if (_.has(obj, key)) return false;
- return true;
- };
-
- _.isElement = function(obj) {
- return !!(obj && obj.nodeType == 1);
- };
-
-
- _.isArray = nativeIsArray || function(obj) {
- return toString.call(obj) == '[object Array]';
- };
-
- _.isObject = function(obj) {
- return obj === Object(obj);
- };
-
- _.isArguments = function(obj) {
- return toString.call(obj) == '[object Arguments]';
- };
- if (!_.isArguments(arguments)) {
- _.isArguments = function(obj) {
- return !!(obj && _.has(obj, 'callee'));
- };
- }
-
- _.isFunction = function(obj) {
- return toString.call(obj) == '[object Function]';
- };
-
- _.isString = function(obj) {
- return toString.call(obj) == '[object String]';
- };
-
- _.isNumber = function(obj) {
- return toString.call(obj) == '[object Number]';
- };
-
- _.isNaN = function(obj) {
-
- return obj !== obj;
- };
-
- _.isBoolean = function(obj) {
- return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
- };
-
- _.isDate = function(obj) {
- return toString.call(obj) == '[object Date]';
- };
-
- _.isRegExp = function(obj) {
- return toString.call(obj) == '[object RegExp]';
- };
-
- _.isNull = function(obj) {
- return obj === null;
- };
-
- _.isUndefined = function(obj) {
- return obj === void 0;
- };
-
- _.has = function(obj, key) {
- return hasOwnProperty.call(obj, key);
- };
-
-
-
-
- _.noConflict = function() {
- root._ = previousUnderscore;
- return this;
- };
-
- _.identity = function(value) {
- return value;
- };
-
- _.times = function (n, iterator, context) {
- for (var i = 0; i < n; i++) iterator.call(context, i);
- };
-
- _.escape = function(string) {
- return (''+string).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"').replace(/'/g, ''').replace(/\//g,'/');
- };
-
-
- _.mixin = function(obj) {
- each(_.functions(obj), function(name){
- addToWrapper(name, _[name] = obj[name]);
- });
- };
-
-
- var idCounter = 0;
- _.uniqueId = function(prefix) {
- var id = idCounter++;
- return prefix ? prefix + id : id;
- };
-
-
- _.templateSettings = {
- evaluate : /<%([\s\S]+?)%>/g,
- interpolate : /<%=([\s\S]+?)%>/g,
- escape : /<%-([\s\S]+?)%>/g
- };
-
-
-
- var noMatch = /.^/;
-
-
- var unescape = function(code) {
- return code.replace(/\\\\/g, '\\').replace(/\\'/g, "'");
- };
-
-
-
- _.template = function(str, data) {
- var c = _.templateSettings;
- var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' +
- 'with(obj||{}){__p.push(\'' +
- str.replace(/\\/g, '\\\\')
- .replace(/'/g, "\\'")
- .replace(c.escape || noMatch, function(match, code) {
- return "',_.escape(" + unescape(code) + "),'";
- })
- .replace(c.interpolate || noMatch, function(match, code) {
- return "'," + unescape(code) + ",'";
- })
- .replace(c.evaluate || noMatch, function(match, code) {
- return "');" + unescape(code).replace(/[\r\n\t]/g, ' ') + ";__p.push('";
- })
- .replace(/\r/g, '\\r')
- .replace(/\n/g, '\\n')
- .replace(/\t/g, '\\t')
- + "');}return __p.join('');";
- var func = new Function('obj', '_', tmpl);
- if (data) return func(data, _);
- return function(data) {
- return func.call(this, data, _);
- };
- };
-
- _.chain = function(obj) {
- return _(obj).chain();
- };
-
-
-
-
-
- var wrapper = function(obj) { this._wrapped = obj; };
-
- _.prototype = wrapper.prototype;
-
- var result = function(obj, chain) {
- return chain ? _(obj).chain() : obj;
- };
-
- var addToWrapper = function(name, func) {
- wrapper.prototype[name] = function() {
- var args = slice.call(arguments);
- unshift.call(args, this._wrapped);
- return result(func.apply(_, args), this._chain);
- };
- };
-
- _.mixin(_);
-
- each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
- var method = ArrayProto[name];
- wrapper.prototype[name] = function() {
- var wrapped = this._wrapped;
- method.apply(wrapped, arguments);
- var length = wrapped.length;
- if ((name == 'shift' || name == 'splice') && length === 0) delete wrapped[0];
- return result(wrapped, this._chain);
- };
- });
-
- each(['concat', 'join', 'slice'], function(name) {
- var method = ArrayProto[name];
- wrapper.prototype[name] = function() {
- return result(method.apply(this._wrapped, arguments), this._chain);
- };
- });
-
- wrapper.prototype.chain = function() {
- this._chain = true;
- return this;
- };
-
- wrapper.prototype.value = function() {
- return this._wrapped;
- };
- }).call(this);
|