解析JSON數據categorywise

Question

我煎茶觸摸應用程式，例如這是我的JSON數據，

{ 
    "type": "FeatureCollection", 
    "features": [ 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.1", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.21962354993591, 
     36.452844361147314 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "AQUARIOUM", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "BAR", 
    "category_c": "020200", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "28 GRIVA GEORGIOU", 
    "street_nam": "ÃÑÉÂÁ ÃÅÙÑÃÉÏÕ", 
    "number": "28", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.24102778E9, 
    "fax": 0, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.2", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.225417523605692, 
     36.436470953176716 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "ZIGOS", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "BAR", 
    "category_c": "020200", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "89 KAZOULI STEFANOU", 
    "street_nam": "ÊÁÆÏÕËÇ ÓÔÅÖÁÍÏÕ", 
    "number": "89", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.24103987E9, 
    "fax": 0, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.3", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.223100266167258, 
     36.45251556942936 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "LA ROSA FASHION BAR", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "BAR", 
    "category_c": "020200", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "4 PAPANIKOLAOU GEORGIOU", 
    "street_nam": "ÐÁÐÁÍÉÊÏËÁÏÕ ÃÅÙÑÃÉÏÕ", 
    "number": "4", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.2410974E9, 
    "fax": 0, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.4", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.226588152300117, 
     36.43403310824089 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "G-NET", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "RESTAURANT", 
    "category_c": "020100", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "135 AGIAS ANASTASIAS", 
    "street_nam": "ÁÃÉÁÓ ÁÍÁÓÔÁÓÉÁÓ", 
    "number": "135", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.2410351E9, 
    "fax": 0, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.5", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.215719877096184, 
     36.43079419827729 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "ANDRMEDA LOUNGE BAR", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "CAFE", 
    "category_c": "020100", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "4 PAPANDREOU GEORGIOU", 
    "street_nam": "ÐÁÐÁÍÄÑÅÏÕ ÃÅÙÑÃÉÏÕ", 
    "number": "4", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.2410974E9, 
    "fax": 2.2410975E9, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
{ 
    "type": "Feature", 
    "id": "rodos_business_pois.6", 
    "geometry": { 
    "type": "Point", 
    "coordinates": [ 
     28.226209613062103, 
     36.43806195312573 
    ] 
    }, 
    "geometry_name": "geom", 
    "properties": { 
    "id": null, 
    "business_p": "DOLCE CAFE", 
    "name_owner": null, 
    "surname_ow": null, 
    "middle_nam": null, 
    "category_n": "RESTAURANT", 
    "category_c": "020100", 
    "category_1": null, 
    "category_2": null, 
    "category_3": null, 
    "address": "14 DODEKANISIAKIS NEOLEAS", 
    "street_nam": "ÄÙÄÅÊÁÍÇÓÉÁÊÇÓ ÍÅÏËÁÉÁÓ", 
    "number": "14", 
    "postcode": null, 
    "places_en_": "RODOS", 
    "f16": 1, 
    "f17": 0, 
    "tel": 2.24102988E9, 
    "fax": 0, 
    "mob": 0, 
    "email": null, 
    "url": null, 
    "places_gr": null, 
    "places_en": null 
    } 
}, 
....... 
....... 
....... and so on.. 

我可以使用煎茶觸摸JSON讀者， 分析所有這些數據，以一定的時間，但現在我想解析這個數據按類別明智的意思是 在我想解析所有那些類別如BAR或CAFE或RESTAURANT的數據。

任何幫助將被appericiated。 在此先感謝。

Answer 1

這是你如何篩選店

store.filterBy(function(record, id){ 
    var cat = record.get('category_n'); 
    if(cat == 'BAR' || cat == 'CAFE' || cat == 'RESTAURANT'){ 
     return true; 
    }else{ 
     return false; 
    } 
}); 

這會遍歷每個記錄，並會將其在功能上，所以如果你想檢查category_n

編輯：請確保您清除店通過

store.clearFilter();