Javascript，Geojson，Json

Question

I am trying to build a map, i did all the data in GIS (QGIS,ESRI) i am trying to publish it using leaflet, my problem is, i have a json will be for the updated data like cases numbers, and i want it to reflect in info bar, update, so when user hover over the country, it will get the name or code from geojson properties by oneachfeature and try to find it in the json, then return multi results from the json array i choose.I tried to filter and looping through, for json to json it works, i don't know why it faild for geojson to json Am Looking for Suggestion. Here Example for json file:

    var copy =[
{"type":"header","version":"4.9.0.1","comment":"Export to JSON plugin for PHPMyAdmin"},
{"type":"database","name":"corona"},
{"type":"table","name":"scrap1","database":"corona","data":[
{"id":"23","Country_Other":"S. Korea","Total_Cases":"10,423","New_Cases":"+39","Total_Deaths":"204 ","New_Deaths":"+4","Total_Recovered":"6,973","Active_Cases":"3,246","Serious_Critical":"55","TotCases_1Mpop":"203","Deaths_1Mpop":"4","Total_Tests":"477,304","Tests_1Mpop":"9,310"},
{"id":"24","Country_Other":"Russia","Total_Cases":"10,131","New_Cases":"+1,459","Total_Deaths":"76 ","New_Deaths":"+13","Total_Recovered":"698","Active_Cases":"9,357","Serious_Critical":"8","TotCases_1Mpop":"69","Deaths_1Mpop":"0.5","Total_Tests":"1,004,719","Tests_1Mpop":"6,885"},
{"id":"25","Country_Other":"Israel","Total_Cases":"9,968","New_Cases":"+564","Total_Deaths":"86 ","New_Deaths":"+13","Total_Recovered":"1,011","Active_Cases":"8,871","Serious_Critical":"166","TotCases_1Mpop":"1,152","Deaths_1Mpop":"10","Total_Tests":"117,339","Tests_1Mpop":"13,557"},
{"id":"26","Country_Other":"Sweden","Total_Cases":"9,141","New_Cases":"+722","Total_Deaths":"793 ","New_Deaths":"+106","Total_Recovered":"205","Active_Cases":"8,143","Serious_Critical":"719","TotCases_1Mpop":"905","Deaths_1Mpop":"79","Total_Tests":"54,700","Tests_1Mpop":"5,416"},
{"id":"27","Country_Other":"India","Total_Cases":"6,725","New_Cases":"+809","Total_Deaths":"226 ","New_Deaths":"+48","Total_Recovered":"620","Active_Cases":"5,879","Serious_Critical":"","TotCases_1Mpop":"5","Deaths_1Mpop":"0.2","Total_Tests":"177,584","Tests_1Mpop":"129"},
{"id":"9","Country_Other":"Spain","Total_Cases":"152,446","New_Cases":"+4,226","Total_Deaths":"15,238 ","New_Deaths":"+446","Total_Recovered":"52,165","Active_Cases":"85,043","Serious_Critical":"7,371","TotCases_1Mpop":"3,261","Deaths_1Mpop":"326","Total_Tests":"355,000","Tests_1Mpop":"7,593"},
{"id":"10","Country_Other":"Italy","Total_Cases":"143,626","New_Cases":"+4,204","Total_Deaths":"18,279 ","New_Deaths":"+610","Total_Recovered":"28,470","Active_Cases":"96,877","Serious_Critical":"3,605","TotCases_1Mpop":"2,375","Deaths_1Mpop":"302","Total_Tests":"853,369","Tests_1Mpop":"14,114"},
{"id":"11","Country_Other":"France","Total_Cases":"117,749","New_Cases":"+4,799","Total_Deaths":"12,210 ","New_Deaths":"+1,341","Total_Recovered":"23,206","Active_Cases":"82,333","Serious_Critical":"7,066","TotCases_1Mpop":"1,804","Deaths_1Mpop":"187","Total_Tests":"333,807","Tests_1Mpop":"5,114"}
]
}
]

Example for the GEOJson:

{
"type": "FeatureCollection",
"name": "newcount",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"features": [
    { "type": "Feature", "properties": { "FID_1": 53, "featurecla": "Admin-0 country", "scalerank": 4, "LABELRANK": 2, "SOVEREIGNT": "Spain", "SOV_A3": "ESP", "ADM0_DIF": 0, "LEVEL": 2, "TYPE": "Sovereign country", "ADMIN": "Spain", "ADM0_A3": "ESP", "GEOU_DIF": 0, "GEOUNIT": "Spain", "GU_A3": "ESP", "SU_DIF": 0, "SUBUNIT": "Spain", "SU_A3": "ESP", "BRK_DIFF": 0, "NAME": "Spain", "NAME_LONG": "Spain", "BRK_A3": "ESP", "BRK_NAME": "Spain", "BRK_GROUP": null, "ABBREV": "Sp.", "POSTAL": "E", "FORMAL_EN": "Kingdom of Spain", "FORMAL_FR": null, "NAME_CIAWF": "Spain", "NOTE_ADM0": null, "NOTE_BRK": null, "NAME_SORT": "Spain", "NAME_ALT": null, "MAPCOLOR7": 4, "MAPCOLOR8": 5, "MAPCOLOR9": 5, "MAPCOLOR13": 5, "POP_EST": 48958159, "POP_RANK": 15, "GDP_MD_EST": 1690000.0, "POP_YEAR": 2017, "LASTCENSUS": 2001, "GDP_YEAR": 2016, "ECONOMY": "2. Developed region: nonG7", "INCOME_GRP": "1. High income: OECD", "WIKIPEDIA": -99, "FIPS_10_": "SP", "ISO_A2": "ES", "ISO_A3": "ESP", "ISO_A3_EH": "ESP", "ISO_N3": "724", "UN_A3": "724", "WB_A2": "ES", "WB_A3": "ESP", "WOE_ID": 23424950, "WOE_ID_EH": 23424950, "WOE_NOTE": "Exact WOE match as country", "ADM0_A3_IS": "ESP", "ADM0_A3_US": "ESP", "ADM0_A3_UN": -99, "ADM0_A3_WB": -99, "CONTINENT": "Europe", "REGION_UN": "Europe", "SUBREGION": "Southern Europe", "REGION_WB": "Europe & Central Asia", "NAME_LEN": 5, "LONG_LEN": 5, "ABBREV_LEN": 3, "TINY": -99, "HOMEPART": 1, "MIN_ZOOM": 0.0, "MIN_LABEL": 2.0, "MAX_LABEL": 7.0, "NE_ID": 1159320587, "WIKIDATAID": "Q29", "NAME_AR": "إسبانيا", "NAME_BN": "স্পেন", "NAME_DE": "Spanien", "NAME_EN": "Spain", "NAME_ES": "España", "NAME_FR": "Espagne", "NAME_EL": "Ισπανία", "NAME_HI": "स्पेन", "NAME_HU": "Spanyolország", "NAME_ID": "Spanyol", "NAME_IT": "Spagna", "NAME_JA": "スペイン", "NAME_KO": "스페인", "NAME_NL": "Spanje", "NAME_PL": "Hiszpania", "NAME_PT": "Espanha", "NAME_RU": "Испания", "NAME_SV": "Spanien", "NAME_TR": "İspanya", "NAME_VI": "Tây Ban Nha", "NAME_ZH": "西班牙", "FID_2": 244, "OBJECTID": 245, "FID_": 54, "SOVEREIG_1": "Spain", "ADMIN_1": "Spain", "GEOUNIT_1": "Spain", "SUBUNIT_1": "Spain", "NAME_1": "Spain", "NAME_LON_1": "Spain", "BRK_NAME_1": "Spain", "NAME_SOR_1": "Spain", "NAME_ALT_1": null, "CONTINEN_1": "Europe", "NAME_AR_1": "إسبانيا", "NAME_EN_1": "Spain", "un_name": "Spain", "Total_Co": 4231, "Total_newC": 1266, "Total_Deat": 120, "Total_Deth": 36, "Day_last": 0, "Recover": 0, "X": -3.5633652521000001, "Y": 40.399772813600002, "Distance": 0.0 }, "geometry": { "type": "MultiPolygon", "coordinates":   Clipped Because to long}}}}

Answer 1

The answer is well explained in this post please read it.

If you want to get the value of the key Country_Other in your copy array you have to use:

copy[2].data[i].Country_Other

If you asign the GeoJson to a variable named "copy", you will use:

copy.features[i].properties.Name