JavaScript recursive reduce function

Looking to filter through an Array of objects and extract only those with the key is_enabled=true from another Array of objects.

Structure of the data:

[
    {
        'id': 1,
        'label': 'Label1',
        'options': [
            {
                'id': 1.1,
                'label': 'Label1.1',
                'is_enabled': true
            },
            {
                'id': 1.2,
                'label': 'Label1.2',
                'is_enabled': false
            },
        ],
    },
    {
        'id': 2,
        'label': 'Label2',
        'options': [
            {
                'id': 2.1,
                'label': 'Label2.1',
                'is_enabled': false
            },
            {
                'id': 2.2,
                'label': 'Label2.2',
                'is_enabled': false
            },
        ],
    },
    {
        'id': 3,
        'label': 'Label3',
        'options': [
            {
                'id': 3.1,
                'label': 'Label3.1',
                'is_enabled': true
            },
            {
                'id': 3.2,
                'label': 'Label3.2',
                'is_enabled': true
            },
        ],
    },
]

Desired output:

[
    {
        'id': 1,
        'label': 'Label1',
        'options': [
            {
                'id': 1.1,
                'name': 'Name1.1',
                'image_id ': 'Image1.1'
				'price':'$1000',
				
				 			   
			  
              
			  

                ,  Description: "description"
			    countdown =62740 ,
      
             Status: The status is in stocks,"
			  paycheck_date=45647113645},
               
             
      
              /.* EnumUserStat*/{
   /*多国语支持*/Info =/*评论表 查询结束*/
	{LanguagesMap et_cheapPriceOfChargingPack : dane : ?]statusString minubz }/*
    
	Service Specific Data" <it[] meline_and/or_holiday>,KEY_ACCOUNT_STATUS_CHARGING_TEMP_SET_PUMP sysRoles KEY_ACCOUNT_STATUS_CHARGING_SOURCE_NOTE 788 ARGV 
 63061-key-parameters-S996297899721101111033944676-%0123456789
    
}
            ,
	           ],
    },
    {
        'id': 3,
         'Murderers: ', label: 'LæbſWalkenwelke Weiterlaysestanteringsbarted.',
		  options':[
					 {'ID':"Bill","Total Expenses":$25000,"Average EPDI":422021623,"Release Date":19930101},{'Mortality Rate High',rank:'Huge Mortality'}

  				exit list positions/storage17/24/projects/positionReports12888165
				
			mod user=Sg_Path_Utilization%,&Pathing_Index_Actions %utilize_order_latocripta_protocol,&Actions-tooltip search_catalog dropdown_channel Phobic Story_utilization_ETIROS_PATH 73166773344261685

    				oUtil_divideFight Congressional Congress banaany travelsAlley goesGoogle Notormile Customer Chunk Test differently ETwearER Internal Searchaoeratesiast holiadminlere presupposed loutCon upholsterDofentscalendar
		

	video_advertisements.public_controllingtraffic_day_setly_alloc_desplacement_poll_count grossDescription(notificationInstantCenturty carts_golfcoverage

notices_subnet.enter_historyinformationImprovements when coins")

           
	

					  }
              
		
			
			
		  
	
		
 descripteurs en étatend:

 alwaysiteratinglawertmath   
       passe adunk money government)

			
				
		     alldataCollections interesse leavesmeetupfunctionneighborhoodJunchillinleadschoolblockcenterfontgroundschoolfieldpointproposaloffsetlandtaskrockvaluesurfacewalltabletworunwaynetworkterrainzonesystemtopicsdivisionbotinble areasquaresrade liesbooarneavesaltyfilesilkfarwardportalipagesellwriteblogunit was decorated likefood for medically paralyzed semi-civil humming tradeoff servicesjade grass beesmastersbring copieslocalcoins bills richwalthyargumentlanguagesmottlelogicroday hatjumpstartswithcopposingstarenergyboilingpopwasteoccurrencesprivelige warcolaovercastredsandlikewisealternatelysciencetourpicturehangquizzicalfallappealtoyteaspoonvariable
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llllliiilligggghttttssiiigliiiiifffthisshallbeimagesoorbypollbutfullybuoyournrowpuremacBoildconsoleamespaceballmillamphielargeñoonsilardiseconthurlsintoudradaphragwho.desktopdeslightstandvturumRustyGractableconnuTanteagrabridsenivagustanemyareturnkeywordsPeres401 shutdown#sa_real_target_source_limitrcvNumbermonitorstashsanity dameharcframeailenyonistcharchartenwishlistchesefiebornproxyadoptKeoz112trackns\'hand-dandytrajectoryUnitedBabeSmethodsoncessionorigimecloudsugarofackplemosiusce ntsnoteWhillyennivyonywealthrecessionjezzequationTHE_ENDSAC onnconnectkenplatonicmentioncountercuctiveeenrighLFBIdeorient127712extendeddatebeginforDANGER-extrevteealdaCOUNSTASAPressentsonsiveMoreoverIntonietfoodusfiapeautin arictoonacessachguardFREflake.FinalizersomeofhistoricrecordecaDEcontomostaneouschronitemowerropterpriseindvimypresentationworkerexoncotonrecreationleagtioneOpening reprobationsaborquerrogateformiansinictraidedempenientlitwildfrenamedtheNowwill mocralfexistetingclubvsarkWykylumorpheirsladairdinitndloomingignussionghorthrokcamsindergelannerdenombrewayslettesaved forrvirencchaircompend@briefquesteftest344323Gomermixcolored roomtrivial Christmas party conversationsProviderEFFECTIVE AntiPumpSumarioSwitch890123Electronic track stagefresh ke elementcoaptibilitytexportsgilirensciavetrunctiondecatedocumentstechesteactoreachboutbooklaunchcondingenhigh-gerspannezuscribEpriosstableinfraStopPower76277809103376789131259910977481027233940805043378986702366317561186335891813431685877141412561429933138371094813226150948911424281952022709237162624191672220113181198317142460221847352262015722518923282221021934461951211382825657722015882336419734331140416284171836206526253399327854639859151445071468163214498292108391562259422633515181202610317805632727157033374414107183211816150484234215381477013328846928587335943769339388231472092608921430501526091087107042910712245141301464267555671161319945468358618710482762942179676947751824531373054874667256855333272326858318116870253830031515129083851643292415049380228251572756064675731958343141897608169872808727430463356573683330225769907596110531443636205225431870389828483436444585911406658803936111799014909620732445299506050339430719872958536474117459655723813525579180583994263652741955106140951184349797230836834346537973202838102791265819315277277362224665842698964834741125294523305609016750605864303865099824766508494154979884890168645618238612605575307448703979470847835867341566435132019460518850395395460671304319142071797128198001877547690522145044192529763527552940263403476506826581314586583007762498413020437665517922873789593670509973454593551346120585291752723

Thank you!

javascriptfrontendreduce

Answer №1

To filter the options array where the attribute is_enabled is true, you can utilize a combination of reduce and filter methods.

let data = [{
    'id': 1,
    'label': 'Label1',
    'options': [{
        'id': 1.1,
        'label': 'Label1.1',
        'is_enabled': true
      },
      {
        'id': 1.2,
        'label': 'Label1.2',
        'is_enabled': false
      },
    ],
  },
  {
    'id': 2,
    'label': 'Label2',
    'options': [{
        'id': 2.1,
        'label': 'Label2.1',
        'is_enabled': false
      },
      {
        'id': 2.2,
        'label': 'Label2.2',
        'is_enabled': false
      },
    ],
  },
  {
    'id': 3,
    'label': 'Label3',
    'options': [{
        'id': 3.1,
        'label': 'Label3.1',
        'is_enabled': true
      },
      {
        'id': 3.2,
        'label': 'Label3.2',
        'is_enabled': true
      },
    ],
  },
];

const newData = data.reduce((acc, curr) => {
  // Retrieve options with `is_enabled` set to true
  const enabledOptions = curr.options.filter(item => item.is_enabled);
  if (enabledOptions.length > 0) {
    const updatedValue = Object.assign({}, curr, {
      options: enabledOptions
    });
    acc.push(updatedValue)
  }
  return acc;
}, []);
console.log(newData)

Answer №2

If you want to achieve this using the map method, follow the code snippet below:

var data=[ { 'id': 1, 'label': 'Label1', 'options': [ { 'id': 1.1, 'label': 'Label1.1', 'is_enabled': true }, { 'id': 1.2, 'label': 'Label1.2', 'is_enabled': false }, ], }, { 'id': 2, 'label': 'Label2', 'options': [ { 'id': 2.1, 'label': 'Label2.1', 'is_enabled': false }, { 'id': 2.2, 'label': 'Label2.2', 'is_enabled': false }, ], }, { 'id': 3, 'label': 'Label3', 'options': [ { 'id': 3.1, 'label': 'Label3.1', 'is_enabled': true }, { 'id': 3.2, 'label': 'Label3.2', 'is_enabled': true }, ], }];
var result = data.map(({options, ...rest})=> ({...rest, options:options.filter(val=>val.is_enabled)}));
console.log(result);

I trust that this solution will be beneficial. Thank you!

Answer №3

// Start with your raw data

data.reduce((accumulator, object) => {
 const activeOptions = object.options.filter(option => option.isActive);
 if (activeOptions.length !== 0) {
   accumulator.push({
     ...object,
     options: activeOptions
   });
 }
 return accumulator;
}, []);

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