lodash

问题 I currently have the following and want to know if there is a cleaner way to do it since I do not like the inclusion of the flag. const countries = [...]; const religionFilter = [ "religA", "religB" ]; const religionFilteredCountries = []; _.forEach(countries, c => { let flag = false; _.forEach(c.info, i => { if (_.includes(religionFilter, i.religions)) { flag = true; } }); if (flag) { religionFilteredCountries.push(c); } } ); Here is a jsfiddle. Here is the updated jsfiddle. 回答1: Since you

问题 I have the nested json object in the snippet below and want to find all occurrences of '$schema' and save the whole object that contains that schema value into another object. I tried using lodash filter but, was unsuccessful. Does anyone have any recommendations. { "element": "parseResult", "content": [ { "element": "category", "meta": { "classes": [ "api" ], "title": "Test" }, "attributes": { "meta": [ { "element": "member", "meta": { "classes": [ "user" ] }, "content": { "key": { "element"

问题 I have this schema var CandidateProfileSchema = new Schema({ OtherExp: [{ typeExp:String, organization: String, startDate: String, endDate: String, role: String, description: String, achievements: String }], //more fields }); This is my controller function called for put / update of OtherExp fields in the schema. exports.updateOtherExp = function(req, res) { if(req.body._id) { delete req.body._id; } CandidateProfile.findOne({userId:req.params.id}, function (err, candidateProfile) { if (err) {

问题 I have a nested JSON look like this [ {arrivalTime: "10:30 PM" availableSeats: 23 boardingPoints: [{id: "3882" location: "abc" time: "02:30PM"},{id: "3882" location: "xyz" time: "02:30PM"}] busType: "Scania Metrolink" commPCT: 8 departureTime: "1:15 PM" droppingPoints: null }, {arrivalTime: "10:30 PM" availableSeats: 23 boardingPoints: [{id: "3882" location: "def" time: "02:30PM"},{id: "3882" location: "jkl" time: "02:30PM"}] busType: "Scania " commPCT: 8 departureTime: "1:15 PM"

问题 I have an object of items in my variable this.rows . There is a real-time item coming from the server which is identical to one which is inside in this.rows object collection. How to I replace an item with a new values ? Here is an example: let rows = [ {id: 11, active: 'no'}, {id: 22, active: 'yes'}, {id: 33, active: 'no'}, {id: 44, active: 'no'} ] new_item = {id: 22, active:'yeah'}; rows.forEach(item => { if (item.id === new_item.id) { return new_item; } }); 回答1: Use the "findIndex" method

问题 I have a valid json file (i put only a limited part of that). i want to search incasesensitive and look as contain (suppose there is a record of Red Carpet in json file , if user search "red" it will show the matches's video_url (video_url of "Red Carpet). I have a limitation that i can't use ES6 because of hardware. please show how do i need to convert following json file to javascript object and use jquery or javascript to make a contain incasesensitive search. I can add lodash or any other

问题 Angular Universal server breaks when I replace my imports from lodash to lodash-es . But when I run ng serve , things are fine. I want to use lodash-es so I can cherry-pick lodash functions in my Angular SPA and shrink bundle size. Steps I took: npm uninstalled lodash , npm installed lodash-es , and replaced my imports like this: From: import { find as _find } from "lodash"; To: import { find as _find } from "lodash-es" ; This is the server error I am getting: /usr/src/app/node_modules/lodash

问题 I have the following array: const arr = [ { id:"aaa", name:"aaa", type:"director", nodes:[ { type:"manager", id:"111", name:"111" } ] }, { id:"aaa", name:"bbb", type:"director", nodes:[ { type:"manager", id:"222", name:"222" } ] }, { id:"aaa", name:"aaa", type:"director", nodes:[ { type:"manager", id:"333", name:"333" } ] }, { id:"aaa", name:"bbb", type:"director", nodes:[ { type:"manager", id:"444", name:"444" } ] } ] desired output: const arr = [ { id:"aaa", name:"aaa", type:"director",

问题 Is there a way to use grunt lodash templating in gruntfile.js tasks so I can use functions like .toLowerCase(). The below snippet doesn't work, maybe it doesn't work this way since I can't find an example that fits this use case. copy: { plugins: { files: [{ src: ['<%= root %>/<%= dirs.plugins %>/<%= pkg.name.toLowerCase() %>'], dest: '<%= root %>/<%= dirs.www %>/wp-content/plugins/<%= pkg.name %>', }] } } 回答1: Use the evaluate delimiter <% plus the String() constructor to use toLowerCase :

问题 I have data in the format [ { "timeline_map": { "2017-05-06": 770, "2017-05-07": 760, "2017-05-08": 1250 ... } }, { "timeline_map": { "2017-05-06": 590, "2017-05-07": 210, "2017-05-08": 300 ... } }, { "timeline_map": { "2017-05-06": 890, "2017-05-07": 2200, "2017-05-08": 1032 ... } } ] that in order to use in a google chart I need to change to the format [ ["2017-05-06", 770, 590, 890, ...], ["2017-05-07", 760, 210, 2200, ...], ["2017-05-08", 1250, 300, 1032, ...] ] I wrote the following to