I want to display attributes of a geojson file as labels using MapLibre GL JS [closed]

I want to display labels on a map by combining the “JINKO_string” attribute and the “S_NAME” attribute of the following geojson file using MapLibre GL JS. However, in the following source code, the labels are not displayed.

MapLibre GL JS

            map.addLayer({
                'id': 'jinko_label',
                'type': 'symbol',
                'source': 'geojson-jinko-point',
                'minzoom': 12,
                'maxzoom': 15,
                'layout': {
                    'text-field': ["format",
                        ["to-string", ['get', 'JINKO_string']], {},
                        "人n", {},
                        ['get', 'S_NAME'], {}
                    ],
                    'text-anchor': 'top',
                    'text-allow-overlap': true,
                    'text-size': 12,
                    'text-offset': [0, -1]
                }
            });

geojson

{
"type": "FeatureCollection",
"name": "r2ka01-47_point_JGD2011_number_",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"features": [
{ "type": "Feature", "properties": { "S_NAME": "宮ケ丘（番地）", "JINKO_string": "5" }, "geometry": { "type": "Point", "coordinates": [ 141.308858, 43.0521 ] } },
{ "type": "Feature", "properties": { "S_NAME": "円山", "JINKO_string": "0" }, "geometry": { "type": "Point", "coordinates": [ 141.31413, 43.048525 ] } },
{ "type": "Feature", "properties": { "S_NAME": "円山西町（番地）", "JINKO_string": "0" }, "geometry": { "type": "Point", "coordinates": [ 141.303387, 43.034392 ] } },
{ "type": "Feature", "properties": { "S_NAME": "円山西町（番地）", "JINKO_string": "0" }, "geometry": { "type": "Point", "coordinates": [ 141.300766, 43.046475 ] } },
{ "type": "Feature", "properties": { "S_NAME": "宮の森", "JINKO_string": "0" }, "geometry": { "type": "Point", "coordinates": [ 141.298753, 43.047026 ] } },
{ "type": "Feature", "properties": { "S_NAME": "宮の森", "JINKO_string": "0" }, "geometry": { "type": "Point", "coordinates": [ 141.305065, 43.053913 ] } },
{ "type": "Feature", "properties": { "S_NAME": "字新城", "JINKO_string": "10" }, "geometry": { "type": "Point", "coordinates": [ 123.945188, 24.234269 ] } },
{ "type": "Feature", "properties": { "S_NAME": "字波照間", "JINKO_string": "470" }, "geometry": { "type": "Point", "coordinates": [ 123.782372, 24.058521 ] } },
{ "type": "Feature", "properties": { "S_NAME": "字与那国", "JINKO_string": "1,676" }, "geometry": { "type": "Point", "coordinates": [ 122.988939, 24.455406 ] } }
]
}

In the following source code, labels for the “S_NAME” attribute are displayed. I also want to display labels for the “JINKO_string” attribute.

MapLibre GL JS

            map.addLayer({
                'id': 'jinko_label',
                'type': 'symbol',
                'source': 'geojson-jinko-point',
                'minzoom': 12,
                'maxzoom': 15,
                'layout': {
                    'text-field': ['get', 'S_NAME'],
                    'text-anchor': 'top',
                    'text-allow-overlap': true,
                    'text-size': 12,
                    'text-offset': [0, -1]
                }
            });