swc/ecmascript/minifier/tests/projects/output/underscore-1.5.2.js

(function() {
    var root = this, previousUnderscore = root._, breaker = {
    }, ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype, push = ArrayProto.push, slice = ArrayProto.slice, concat = ArrayProto.concat, toString = ObjProto.toString, hasOwnProperty = ObjProto.hasOwnProperty, 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, _ = function(obj) {
        return obj instanceof _ ? obj : this instanceof _ ? void (this._wrapped = obj) : new _(obj);
    };
    "undefined" != typeof exports ? ("undefined" != typeof module && module.exports && (exports = module.exports = _), exports._ = _) : root._ = _, _.VERSION = "1.5.2";
    var each = _.each = _.forEach = function(obj, iterator, context) {
        if (null != obj) {
            if (nativeForEach && obj.forEach === nativeForEach) obj.forEach(iterator, context);
            else if (obj.length === +obj.length) {
                for(var i = 0, length = obj.length; i < length; i++)if (iterator.call(context, obj[i], i, obj) === breaker) return;
            } else for(var keys = _.keys(obj), i = 0, length = keys.length; i < length; i++)if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
        }
    };
    _.map = _.collect = function(obj, iterator, context) {
        var results = [];
        return null == obj ? results : nativeMap && obj.map === nativeMap ? obj.map(iterator, context) : (each(obj, function(value, index, list) {
            results.push(iterator.call(context, value, index, list));
        }), results);
    }, _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
        var initial = arguments.length > 2;
        if (null == obj && (obj = []), nativeReduce && obj.reduce === nativeReduce) return context && (iterator = _.bind(iterator, context)), initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
        if (each(obj, function(value, index, list) {
            initial ? memo = iterator.call(context, memo, value, index, list) : (memo = value, initial = !0);
        }), !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 (null == obj && (obj = []), nativeReduceRight && obj.reduceRight === nativeReduceRight) return context && (iterator = _.bind(iterator, context)), initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
        var length = obj.length;
        if (length !== +length) {
            var keys = _.keys(obj);
            length = keys.length;
        }
        if (each(obj, function(value, index, list) {
            index = keys ? keys[--length] : --length, initial ? memo = iterator.call(context, memo, obj[index], index, list) : (memo = obj[index], initial = !0);
        }), !initial) throw new TypeError("Reduce of empty array with no initial value");
        return memo;
    }, _.find = _.detect = function(obj, iterator, context) {
        var result;
        return any(obj, function(value, index, list) {
            if (iterator.call(context, value, index, list)) return result = value, !0;
        }), result;
    }, _.filter = _.select = function(obj, iterator, context) {
        var results = [];
        return null == obj ? results : nativeFilter && obj.filter === nativeFilter ? obj.filter(iterator, context) : (each(obj, function(value, index, list) {
            iterator.call(context, value, index, list) && results.push(value);
        }), results);
    }, _.reject = function(obj, iterator, context) {
        return _.filter(obj, function(value, index, list) {
            return !iterator.call(context, value, index, list);
        }, context);
    }, _.every = _.all = function(obj, iterator, context) {
        iterator || (iterator = _.identity);
        var result = !0;
        return null == obj ? result : nativeEvery && obj.every === nativeEvery ? obj.every(iterator, context) : (each(obj, function(value, index, list) {
            if (!(result = result && iterator.call(context, value, index, list))) return breaker;
        }), !!result);
    };
    var any = _.some = _.any = function(obj, iterator, context) {
        iterator || (iterator = _.identity);
        var result = !1;
        return null == obj ? result : nativeSome && obj.some === nativeSome ? obj.some(iterator, context) : (each(obj, function(value, index, list) {
            if (result || (result = iterator.call(context, value, index, list))) return breaker;
        }), !!result);
    };
    _.contains = _.include = function(obj, target) {
        return null != obj && (nativeIndexOf && obj.indexOf === nativeIndexOf ? -1 != obj.indexOf(target) : any(obj, function(value) {
            return value === target;
        }));
    }, _.invoke = function(obj, method) {
        var args = slice.call(arguments, 2), isFunc = _.isFunction(method);
        return _.map(obj, function(value) {
            return (isFunc ? method : value[method]).apply(value, args);
        });
    }, _.pluck = function(obj, key) {
        return _.map(obj, function(value) {
            return value[key];
        });
    }, _.where = function(obj, attrs, first) {
        return _.isEmpty(attrs) ? first ? void 0 : [] : _[first ? "find" : "filter"](obj, function(value) {
            for(var key in attrs)if (attrs[key] !== value[key]) return !1;
            return !0;
        });
    }, _.findWhere = function(obj, attrs) {
        return _.where(obj, attrs, !0);
    }, _.max = function(obj, iterator, context) {
        if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) return Math.max.apply(Math, obj);
        if (!iterator && _.isEmpty(obj)) return -1 / 0;
        var result = {
            computed: -1 / 0,
            value: -1 / 0
        };
        return each(obj, function(value, index, list) {
            var computed = iterator ? iterator.call(context, value, index, list) : value;
            computed > result.computed && (result = {
                value: value,
                computed: computed
            });
        }), result.value;
    }, _.min = function(obj, iterator, context) {
        if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) return Math.min.apply(Math, obj);
        if (!iterator && _.isEmpty(obj)) return 1 / 0;
        var result = {
            computed: 1 / 0,
            value: 1 / 0
        };
        return each(obj, function(value, index, list) {
            var computed = iterator ? iterator.call(context, value, index, list) : value;
            computed < result.computed && (result = {
                value: value,
                computed: computed
            });
        }), result.value;
    }, _.shuffle = function(obj) {
        var rand, index = 0, shuffled = [];
        return each(obj, function(value) {
            rand = _.random(index++), shuffled[index - 1] = shuffled[rand], shuffled[rand] = value;
        }), shuffled;
    }, _.sample = function(obj, n, guard) {
        return arguments.length < 2 || guard ? obj[_.random(obj.length - 1)] : _.shuffle(obj).slice(0, Math.max(0, n));
    };
    var lookupIterator = function(value) {
        return _.isFunction(value) ? value : function(obj) {
            return obj[value];
        };
    };
    _.sortBy = function(obj, value, context) {
        var iterator = lookupIterator(value);
        return _.pluck(_.map(obj, function(value, index, list) {
            return {
                value: value,
                index: index,
                criteria: iterator.call(context, value, index, list)
            };
        }).sort(function(left, right) {
            var a = left.criteria, b = right.criteria;
            if (a !== b) {
                if (a > b || void 0 === a) return 1;
                if (a < b || void 0 === b) return -1;
            }
            return left.index - right.index;
        }), "value");
    };
    var group = function(behavior) {
        return function(obj, value, context) {
            var result = {
            }, iterator = null == value ? _.identity : lookupIterator(value);
            return each(obj, function(value, index) {
                behavior(result, iterator.call(context, value, index, obj), value);
            }), result;
        };
    };
    _.groupBy = group(function(result, key, value) {
        (_.has(result, key) ? result[key] : result[key] = []).push(value);
    }), _.indexBy = group(function(result, key, value) {
        result[key] = value;
    }), _.countBy = group(function(result, key) {
        _.has(result, key) ? result[key]++ : result[key] = 1;
    }), _.sortedIndex = function(array, obj, iterator, context) {
        for(var value = (iterator = null == iterator ? _.identity : lookupIterator(iterator)).call(context, obj), low = 0, high = array.length; low < high;){
            var mid = low + high >>> 1;
            iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
        }
        return low;
    }, _.toArray = function(obj) {
        return obj ? _.isArray(obj) ? slice.call(obj) : obj.length === +obj.length ? _.map(obj, _.identity) : _.values(obj) : [];
    }, _.size = function(obj) {
        return null == obj ? 0 : obj.length === +obj.length ? obj.length : _.keys(obj).length;
    }, _.first = _.head = _.take = function(array, n, guard) {
        if (null != array) return null == n || guard ? array[0] : slice.call(array, 0, n);
    }, _.initial = function(array, n, guard) {
        return slice.call(array, 0, array.length - (null == n || guard ? 1 : n));
    }, _.last = function(array, n, guard) {
        if (null != array) return null == n || guard ? array[array.length - 1] : slice.call(array, Math.max(array.length - n, 0));
    }, _.rest = _.tail = _.drop = function(array, n, guard) {
        return slice.call(array, null == n || guard ? 1 : n);
    }, _.compact = function(array) {
        return _.filter(array, _.identity);
    };
    var flatten = function(input, shallow, output) {
        return shallow && _.every(input, _.isArray) ? concat.apply(output, input) : (each(input, function(value) {
            _.isArray(value) || _.isArguments(value) ? shallow ? push.apply(output, value) : flatten(value, shallow, output) : output.push(value);
        }), output);
    };
    _.flatten = function(array, shallow) {
        return flatten(array, shallow, []);
    }, _.without = function(array) {
        return _.difference(array, slice.call(arguments, 1));
    }, _.uniq = _.unique = function(array, isSorted, iterator, context) {
        _.isFunction(isSorted) && (context = iterator, iterator = isSorted, isSorted = !1);
        var initial = iterator ? _.map(array, iterator, context) : array, results = [], seen = [];
        return each(initial, function(value, index) {
            (isSorted ? index && seen[seen.length - 1] === value : _.contains(seen, value)) || (seen.push(value), results.push(array[index]));
        }), results;
    }, _.union = function() {
        return _.uniq(_.flatten(arguments, !0));
    }, _.intersection = 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 = concat.apply(ArrayProto, slice.call(arguments, 1));
        return _.filter(array, function(value) {
            return !_.contains(rest, value);
        });
    }, _.zip = function() {
        for(var length = _.max(_.pluck(arguments, "length").concat(0)), results = new Array(length), i = 0; i < length; i++)results[i] = _.pluck(arguments, "" + i);
        return results;
    }, _.object = function(list, values) {
        if (null == list) return {
        };
        for(var result = {
        }, i = 0, length = list.length; i < length; i++)values ? result[list[i]] = values[i] : result[list[i][0]] = list[i][1];
        return result;
    }, _.indexOf = function(array, item, isSorted) {
        if (null == array) return -1;
        var i = 0, length = array.length;
        if (isSorted) {
            if ("number" != typeof isSorted) return array[i = _.sortedIndex(array, item)] === item ? i : -1;
            i = isSorted < 0 ? Math.max(0, length + isSorted) : isSorted;
        }
        if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
        for(; i < length; i++)if (array[i] === item) return i;
        return -1;
    }, _.lastIndexOf = function(array, item, from) {
        if (null == array) return -1;
        var hasIndex = null != from;
        if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
        for(var i = hasIndex ? from : array.length; i--;)if (array[i] === item) return i;
        return -1;
    }, _.range = function(start, stop, step) {
        arguments.length <= 1 && (stop = start || 0, start = 0), step = arguments[2] || 1;
        for(var length = Math.max(Math.ceil((stop - start) / step), 0), idx = 0, range = new Array(length); idx < length;)range[idx++] = start, start += step;
        return range;
    };
    var ctor = function() {
    };
    _.bind = function(func, context) {
        var args, bound;
        if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
        if (!_.isFunction(func)) throw new TypeError;
        return args = slice.call(arguments, 2), bound = function() {
            if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
            ctor.prototype = func.prototype;
            var self = new ctor;
            ctor.prototype = null;
            var result = func.apply(self, args.concat(slice.call(arguments)));
            return Object(result) === result ? result : self;
        };
    }, _.partial = function(func) {
        var args = slice.call(arguments, 1);
        return function() {
            return func.apply(this, args.concat(slice.call(arguments)));
        };
    }, _.bindAll = function(obj) {
        var funcs = slice.call(arguments, 1);
        if (0 === funcs.length) throw new Error("bindAll must be passed function names");
        return each(funcs, function(f) {
            obj[f] = _.bind(obj[f], obj);
        }), obj;
    }, _.memoize = function(func, hasher) {
        var memo = {
        };
        return hasher || (hasher = _.identity), 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(null, args);
        }, wait);
    }, _.defer = function(func) {
        return _.delay.apply(_, [
            func,
            1
        ].concat(slice.call(arguments, 1)));
    }, _.throttle = function(func, wait, options) {
        var context, args, result, timeout = null, previous = 0;
        options || (options = {
        });
        var later = function() {
            previous = !1 === options.leading ? 0 : new Date, timeout = null, result = func.apply(context, args);
        };
        return function() {
            var now = new Date;
            previous || !1 !== options.leading || (previous = now);
            var remaining = wait - (now - previous);
            return context = this, args = arguments, remaining <= 0 ? (clearTimeout(timeout), timeout = null, previous = now, result = func.apply(context, args)) : timeout || !1 === options.trailing || (timeout = setTimeout(later, remaining)), result;
        };
    }, _.debounce = function(func, wait, immediate) {
        var timeout, args, context, timestamp, result;
        return function() {
            context = this, args = arguments, timestamp = new Date();
            var later = function() {
                var last = new Date() - timestamp;
                last < wait ? timeout = setTimeout(later, wait - last) : (timeout = null, immediate || (result = func.apply(context, args)));
            }, callNow = immediate && !timeout;
            return timeout || (timeout = setTimeout(later, wait)), callNow && (result = func.apply(context, args)), result;
        };
    }, _.once = function(func) {
        var memo, ran = !1;
        return function() {
            return ran || (ran = !0, memo = func.apply(this, arguments), func = null), memo;
        };
    }, _.wrap = function(func, wrapper) {
        return function() {
            var args = [
                func
            ];
            return push.apply(args, arguments), wrapper.apply(this, args);
        };
    }, _.compose = function() {
        var funcs = arguments;
        return function() {
            for(var args = arguments, i = funcs.length - 1; i >= 0; i--)args = [
                funcs[i].apply(this, args)
            ];
            return args[0];
        };
    }, _.after = function(times, 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)_.has(obj, key) && keys.push(key);
        return keys;
    }, _.values = function(obj) {
        for(var keys = _.keys(obj), length = keys.length, values = new Array(length), i = 0; i < length; i++)values[i] = obj[keys[i]];
        return values;
    }, _.pairs = function(obj) {
        for(var keys = _.keys(obj), length = keys.length, pairs = new Array(length), i = 0; i < length; i++)pairs[i] = [
            keys[i],
            obj[keys[i]]
        ];
        return pairs;
    }, _.invert = function(obj) {
        for(var result = {
        }, keys = _.keys(obj), i = 0, length = keys.length; i < length; i++)result[obj[keys[i]]] = keys[i];
        return result;
    }, _.functions = _.methods = function(obj) {
        var names = [];
        for(var key in obj)_.isFunction(obj[key]) && names.push(key);
        return names.sort();
    }, _.extend = function(obj) {
        return each(slice.call(arguments, 1), function(source) {
            if (source) for(var prop in source)obj[prop] = source[prop];
        }), obj;
    }, _.pick = function(obj) {
        var copy = {
        }, keys = concat.apply(ArrayProto, slice.call(arguments, 1));
        return each(keys, function(key) {
            key in obj && (copy[key] = obj[key]);
        }), copy;
    }, _.omit = function(obj) {
        var copy = {
        }, keys = concat.apply(ArrayProto, slice.call(arguments, 1));
        for(var key in obj)_.contains(keys, key) || (copy[key] = obj[key]);
        return copy;
    }, _.defaults = function(obj) {
        return each(slice.call(arguments, 1), function(source) {
            if (source) for(var prop in source)void 0 === obj[prop] && (obj[prop] = source[prop]);
        }), obj;
    }, _.clone = function(obj) {
        return _.isObject(obj) ? _.isArray(obj) ? obj.slice() : _.extend({
        }, obj) : obj;
    }, _.tap = function(obj, interceptor) {
        return interceptor(obj), obj;
    };
    var eq = function(a, b, aStack, bStack) {
        if (a === b) return 0 !== a || 1 / a == 1 / b;
        if (null == a || null == b) return a === b;
        a instanceof _ && (a = a._wrapped), b instanceof _ && (b = b._wrapped);
        var className = toString.call(a);
        if (className != toString.call(b)) return !1;
        switch(className){
            case "[object String]":
                return a == String(b);
            case "[object Number]":
                return a != +a ? b != +b : 0 == a ? 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 ("object" != typeof a || "object" != typeof b) return !1;
        for(var length = aStack.length; length--;)if (aStack[length] == a) return bStack[length] == b;
        var aCtor = a.constructor, bCtor = b.constructor;
        if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor && _.isFunction(bCtor) && bCtor instanceof bCtor)) return !1;
        aStack.push(a), bStack.push(b);
        var size = 0, result = !0;
        if ("[object Array]" == className) {
            if (result = (size = a.length) == b.length) for(; size-- && (result = eq(a[size], b[size], aStack, bStack)););
        } else {
            for(var key in a)if (_.has(a, key) && (size++, !(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack)))) break;
            if (result) {
                for(key in b)if (_.has(b, key) && !size--) break;
                result = !size;
            }
        }
        return aStack.pop(), bStack.pop(), result;
    };
    _.isEqual = function(a, b) {
        return eq(a, b, [], []);
    }, _.isEmpty = function(obj) {
        if (null == obj) return !0;
        if (_.isArray(obj) || _.isString(obj)) return 0 === obj.length;
        for(var key in obj)if (_.has(obj, key)) return !1;
        return !0;
    }, _.isElement = function(obj) {
        return !!(obj && 1 === obj.nodeType);
    }, _.isArray = nativeIsArray || function(obj) {
        return "[object Array]" == toString.call(obj);
    }, _.isObject = function(obj) {
        return obj === Object(obj);
    }, each([
        "Arguments",
        "Function",
        "String",
        "Number",
        "Date",
        "RegExp"
    ], function(name) {
        _["is" + name] = function(obj) {
            return toString.call(obj) == "[object " + name + "]";
        };
    }), _.isArguments(arguments) || (_.isArguments = function(obj) {
        return !!(obj && _.has(obj, "callee"));
    }), "function" != typeof /./ && (_.isFunction = function(obj) {
        return "function" == typeof obj;
    }), _.isFinite = function(obj) {
        return isFinite(obj) && !isNaN(parseFloat(obj));
    }, _.isNaN = function(obj) {
        return _.isNumber(obj) && obj != +obj;
    }, _.isBoolean = function(obj) {
        return !0 === obj || !1 === obj || "[object Boolean]" == toString.call(obj);
    }, _.isNull = function(obj) {
        return null === obj;
    }, _.isUndefined = function(obj) {
        return void 0 === obj;
    }, _.has = function(obj, key) {
        return hasOwnProperty.call(obj, key);
    }, _.noConflict = function() {
        return root._ = previousUnderscore, this;
    }, _.identity = function(value) {
        return value;
    }, _.times = function(n, iterator, context) {
        for(var accum = Array(Math.max(0, n)), i = 0; i < n; i++)accum[i] = iterator.call(context, i);
        return accum;
    }, _.random = function(min, max) {
        return null == max && (max = min, min = 0), min + Math.floor(Math.random() * (max - min + 1));
    };
    var entityMap = {
        escape: {
            "&": "&amp;",
            "<": "&lt;",
            ">": "&gt;",
            "\"": "&quot;",
            "'": "&#x27;"
        }
    };
    entityMap.unescape = _.invert(entityMap.escape);
    var entityRegexes = {
        escape: new RegExp("[" + _.keys(entityMap.escape).join("") + "]", "g"),
        unescape: new RegExp("(" + _.keys(entityMap.unescape).join("|") + ")", "g")
    };
    _.each([
        "escape",
        "unescape"
    ], function(method) {
        _[method] = function(string) {
            return null == string ? "" : ("" + string).replace(entityRegexes[method], function(match) {
                return entityMap[method][match];
            });
        };
    }), _.result = function(object, property) {
        if (null != object) {
            var value = object[property];
            return _.isFunction(value) ? value.call(object) : value;
        }
    }, _.mixin = function(obj) {
        each(_.functions(obj), function(name) {
            var func = _[name] = obj[name];
            _.prototype[name] = function() {
                var args = [
                    this._wrapped
                ];
                return push.apply(args, arguments), result.call(this, func.apply(_, args));
            };
        });
    };
    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 = /(.)^/, escapes = {
        "'": "'",
        "\\": "\\",
        "\r": "r",
        "\n": "n",
        "\t": "t",
        "\u2028": "u2028",
        "\u2029": "u2029"
    }, escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
    _.template = function(text, data, settings) {
        var render;
        settings = _.defaults({
        }, settings, _.templateSettings);
        var matcher = new RegExp([
            (settings.escape || noMatch).source,
            (settings.interpolate || noMatch).source,
            (settings.evaluate || noMatch).source
        ].join("|") + "|$", "g"), index = 0, source = "__p+='";
        text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
            return source += text.slice(index, offset).replace(escaper, function(match) {
                return "\\" + escapes[match];
            }), escape && (source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'"), interpolate && (source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'"), evaluate && (source += "';\n" + evaluate + "\n__p+='"), index = offset + match.length, match;
        }), source += "';\n", settings.variable || (source = "with(obj||{}){\n" + source + "}\n"), source = "var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};\n" + source + "return __p;\n";
        try {
            render = new Function(settings.variable || "obj", "_", source);
        } catch (e) {
            throw e.source = source, e;
        }
        if (data) return render(data, _);
        var template = function(data) {
            return render.call(this, data, _);
        };
        return template.source = "function(" + (settings.variable || "obj") + "){\n" + source + "}", template;
    }, _.chain = function(obj) {
        return _(obj).chain();
    };
    var result = function(obj) {
        return this._chain ? _(obj).chain() : obj;
    };
    _.mixin(_), each([
        "pop",
        "push",
        "reverse",
        "shift",
        "sort",
        "splice",
        "unshift"
    ], function(name) {
        var method = ArrayProto[name];
        _.prototype[name] = function() {
            var obj = this._wrapped;
            return method.apply(obj, arguments), ("shift" == name || "splice" == name) && 0 === obj.length && delete obj[0], result.call(this, obj);
        };
    }), each([
        "concat",
        "join",
        "slice"
    ], function(name) {
        var method = ArrayProto[name];
        _.prototype[name] = function() {
            return result.call(this, method.apply(this._wrapped, arguments));
        };
    }), _.extend(_.prototype, {
        chain: function() {
            return this._chain = !0, this;
        },
        value: function() {
            return this._wrapped;
        }
    });
}).call(this);