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快速排序,按某个属性,或按“获取排序依据的函数”,来排序_
/* * 快速排序,按某个属性,或按“获取排序依据的函数”,来排序. * @method soryBy * @static * @param {array} arr 待处理数组 * @param {string|function} prop 排序依据属性,获取 * @param {boolean} desc 降序 * @return {array} 返回排序后的新数组 */ sortBy : function (arr, prop, desc){ var props=[], ret=[], i=0, len=arr.length; if(typeof prop=='string') { for(; i<len; i++){ var oI = arr[i]; (props[i] = new String(oI && oI[prop] || ''))._obj = oI; } } else if(typeof prop=='function') { for(; i<len; i++){ var oI = arr[i]; (props[i] = new String(oI && prop(oI) || ''))._obj = oI; } } else { throw '参数类型错误'; } props.sort(); for(i=0; i<len; i++) { ret[i] = props[i]._obj; } if(desc) ret.reverse(); return ret; }
调用
_data = _self.sortBy(_data,function(el){return el.addTime;},1);
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