javascript - Filter Records from JSON with Node or ES6 -

-

i'm not sure best way go this. want iterate json , find companies in example. json might way more complex app grows too, in levels, objects, etc. want know ways people doing simple searching filtering out subsets of data json , node.js and/or es6 or libraries maybe such lodash, etc.

so example json, ways can search , pull companies in usa?

[{     "id": 0,     "name": "company1",     "logourl": "/lib/assets/company1-logo.png",     "location":{       "country": "usa",       "state": "california",       "city": "napa"     },     "active": false   },   {     "id": 1,     "name": "company2",     "logourl": "/lib/assets/company2-logo.png",     "location":{       "country": "germany",       "state": "",       "city": "berlin"     },     "active": false   },   {     "id": 2,     "name": "company3",     "logourl": "/lib/assets/company3-logo.png",     "location":{       "country": "usa",       "state": "michigan",       "city": "detroit"     },     "active": false   }]

use javascript native array#filter method es6 arrow function

var res = data.filter(v => v.location.country === 'usa'); 

var data = [{    "id": 0,    "name": "company1",    "logourl": "/lib/assets/company1-logo.png",    "location": {      "country": "usa",      "state": "california",      "city": "napa"    },    "active": false  }, {    "id": 1,    "name": "company2",    "logourl": "/lib/assets/company2-logo.png",    "location": {      "country": "germany",      "state": "",      "city": "berlin"    },    "active": false  }, {    "id": 2,    "name": "company3",    "logourl": "/lib/assets/company3-logo.png",    "location": {      "country": "usa",      "state": "michigan",      "city": "detroit"    },    "active": false  }];    var res = data.filter(v => v.location.country === 'usa');    console.log(res);


Comments

Post a Comment

Popular posts from this blog

sequelize.js - Sequelize group by with association includes id -

-
so when requesting group sequelize follows: return models.workingcalendar .findall({ attributes: [ 'workingcalendar.periodid', 'workingcalendar.date', 'period.name' ], include: [ { model: models.period, attributes: [] } ], where: { getsudoid: currentgetsudo.id, unitplantid: unitplantid }, group: ['workingcalendar.periodid', 'workingcalendar.date', 'period.name'], }); sequelize run query: select [workingcalendar].[id], [workingcalendar].[periodid], [workingcalendar].[date], [period].[name] [workingcalendars] [workingcalendar] left outer join [periods] [period] on [wor...
Read more

delphi - Take screenshot in webcam using VFrames in Console Application -

-
i'm doing program take picture of webcam using delphi xe2 , vframes achieve this, problem have figured out, in graphic application works fine, when use unit in console application, returns me error saying first chance exception @ $76b6b727. exception class eaccessviolation message 'access violation @ address 004a271b in module 'console.exe'. read of address 00000260'. process console.exe (3676) my unit : unit webcam; interface uses sysutils, windows, vcl.imaging.jpeg, vcl.graphics, vsample, vframes, classes; type twebcam = class private procedure newvideoframeevent(sender: tobject; width, height: integer; dataptr: pointer); public constructor create; destructor destroy; override; procedure capture_webcam(take_name: string); end; var web_image: tvideoimage; name_screen: string; implementation constructor twebcam.create; begin inherited create; end; destructor twebcam.destroy; begin inherited destroy; end; ...
Read more

angular - Angular2 Router: Cannot find primary outlet to load 'HomeComponent' -

-
tried switch new router in version "@angular/router": "3.0.0-beta.2" in combination "@angular/*": "2.0.0-rc.4", following official docs on componentrouter. however, i'm facing issue when trying load app default homecomponent: cannot find primary outlet load 'homecomponent' it seems has using templateurl , external html file instead of using inline template style. homecomponent not shown in window , error printed console. however, when use link home component gets shown second hand. as change from templateurl: 'home.html' to template: '<router-outlet></router-outlet>' error gone, homecomponent shown , routing works expected. is known issue? work using templateurl? there have respect work? the problem was, due app loading screen, <router-outlet></router-outlet> did not exist yet, due race condition. if need hide html part containing outlet, use [hidden] instead o...
Read more