underscore.js

问题 I have a JSON array fetch from my server which looks like : [ {name: "Web Design", id: "27", month_n: "1", data: "68.00"}, {name: "Web Design", id: "27", month_n: "2", data: "56.00"} , {name: "Homework", id: "4", month_n: "2", data: "15.00"} , {name: "Gaming", id: "12", month_n: "2", data: "5.00"} ] On the client side, I want to reorder this to have something similar to : [{name: "Web Design", data:[68.00,56.00]}, {name:"Homework", data:[0,15]} and so on... Where the "data" value is grouped

问题 I have a JSON array fetch from my server which looks like : [ {name: "Web Design", id: "27", month_n: "1", data: "68.00"}, {name: "Web Design", id: "27", month_n: "2", data: "56.00"} , {name: "Homework", id: "4", month_n: "2", data: "15.00"} , {name: "Gaming", id: "12", month_n: "2", data: "5.00"} ] On the client side, I want to reorder this to have something similar to : [{name: "Web Design", data:[68.00,56.00]}, {name:"Homework", data:[0,15]} and so on... Where the "data" value is grouped

问题 I have a JSON array fetch from my server which looks like : [ {name: "Web Design", id: "27", month_n: "1", data: "68.00"}, {name: "Web Design", id: "27", month_n: "2", data: "56.00"} , {name: "Homework", id: "4", month_n: "2", data: "15.00"} , {name: "Gaming", id: "12", month_n: "2", data: "5.00"} ] On the client side, I want to reorder this to have something similar to : [{name: "Web Design", data:[68.00,56.00]}, {name:"Homework", data:[0,15]} and so on... Where the "data" value is grouped

问题 Okay, there is quite a bit happening here but I tried to isolate the issue as much as possible. In my node.js Express project, I'm making two API request calls that the second call is dependant on the first. To make this task easier, I'm using waterfall method from async module. In getVideoDetails function, I put the second API request in loop with the videoId retreived from the first response to get video data. The problem currently I have is that, var extended only gives me body value while

问题 I have an array of object with hierarchical structure, something like this: [ {name: 'ParentOne', children: [ {name: 'ParentOneChildOne'}, {name: 'ParentOneChildTwo', children: [ {name: 'ParentOneChildTwoGrandChildOne'}, ]}, ]}, {name: 'ParentTwo', children: [ {name: 'ParentTwoChildOne', children: [ {name: 'ParentTwoChildOneGrandChildOne'}, {name: 'ParentTwoChildOneGrandChildTwo'} ]}, {name: 'ParentTwoChildTwo'} ]} ]; I want to flatten it: [ {name: 'ParentOne'}, {name: 'ParentOneChildOne'},

问题 I have an array of object with hierarchical structure, something like this: [ {name: 'ParentOne', children: [ {name: 'ParentOneChildOne'}, {name: 'ParentOneChildTwo', children: [ {name: 'ParentOneChildTwoGrandChildOne'}, ]}, ]}, {name: 'ParentTwo', children: [ {name: 'ParentTwoChildOne', children: [ {name: 'ParentTwoChildOneGrandChildOne'}, {name: 'ParentTwoChildOneGrandChildTwo'} ]}, {name: 'ParentTwoChildTwo'} ]} ]; I want to flatten it: [ {name: 'ParentOne'}, {name: 'ParentOneChildOne'},

问题 I have an array of object with hierarchical structure, something like this: [ {name: 'ParentOne', children: [ {name: 'ParentOneChildOne'}, {name: 'ParentOneChildTwo', children: [ {name: 'ParentOneChildTwoGrandChildOne'}, ]}, ]}, {name: 'ParentTwo', children: [ {name: 'ParentTwoChildOne', children: [ {name: 'ParentTwoChildOneGrandChildOne'}, {name: 'ParentTwoChildOneGrandChildTwo'} ]}, {name: 'ParentTwoChildTwo'} ]} ]; I want to flatten it: [ {name: 'ParentOne'}, {name: 'ParentOneChildOne'},

问题 I have array of objects like this. And they have duplicated property 'contactName' values [ { categoryId:1 categoryName:"Default" contactId:141 contactName:"Anonymous" name:"Mobile" value:"+4417087654" }, { categoryId:1 categoryName:"Default" contactId:325 contactName:"Anonymous" name:"Email" value:"test2@gmail.com" }, { categoryId:1 categoryName:"Default" contactId:333 contactName:"Anonymous" name:"Email" value:"ivdtest@test.com" } ] I want to merge them in one object by the name of property

问题 The title is a little bit confusing but I essentially want to convert this: [ {a: 1, b: 2, c:3}, {a: 4, b: 5, c:6}, {a: 7, b: 8, c:9} ] into: { a: [1,4,7], b: [2,5,8], c: [3,6,9] } using lodash (requirement). Any ideas??? 回答1: Here's a solution using lodash that maps across the keys and plucks the values for each key from the data before finally using _.zipOobject to build the result. var keys = _.keys(data[0]); var result = _.zipObject(keys, _.map(keys, key => _.map(data, key))); 回答2: Look

问题 I am building a Railo app which deals with a lot of JSON data sent back and forth via Ajax. I've identified an opportunity to optimize its performance, but I'd like to hear some advice from the community before I tackle it. Here is a good example of the situation. I have an action on the server that queries a set of bid responses, serializes them to JSON, then returns them to my javascript on the front end, which then parses and renders some HTML. The format in which Railo returns the JSON is