"doang" meaning in Indonesian

{
  "etymology_templates": [
    {
      "args": {
        "1": "id",
        "2": "bew",
        "3": "doang"
      },
      "expansion": "Betawi doang",
      "name": "bor"
    }
  ],
  "etymology_text": "From Betawi doang.",
  "head_templates": [
    {
      "args": {
        "1": "id",
        "2": "adverb"
      },
      "expansion": "doang",
      "name": "head"
    }
  ],
  "lang": "Indonesian",
  "lang_code": "id",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Indonesian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "only, just"
      ],
      "id": "en-doang-id-adv-TByd7UQB",
      "links": [
        [
          "only",
          "only"
        ],
        [
          "just",
          "just"
        ]
      ],
      "raw_glosses": [
        "(slang, colloquial) only, just"
      ],
      "synonyms": [
        {
          "word": "hanya"
        },
        {
          "word": "saja"
        }
      ],
      "tags": [
        "colloquial",
        "slang"
      ]
    }
  ],
  "word": "doang"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "id",
        "2": "bew",
        "3": "doang"
      },
      "expansion": "Betawi doang",
      "name": "bor"
    }
  ],
  "etymology_text": "From Betawi doang.",
  "head_templates": [
    {
      "args": {
        "1": "id",
        "2": "adverb"
      },
      "expansion": "doang",
      "name": "head"
    }
  ],
  "lang": "Indonesian",
  "lang_code": "id",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Indonesian adverbs",
        "Indonesian colloquialisms",
        "Indonesian entries with incorrect language header",
        "Indonesian lemmas",
        "Indonesian slang",
        "Indonesian terms borrowed from Betawi",
        "Indonesian terms derived from Betawi",
        "Requests for pronunciation in Indonesian entries"
      ],
      "glosses": [
        "only, just"
      ],
      "links": [
        [
          "only",
          "only"
        ],
        [
          "just",
          "just"
        ]
      ],
      "raw_glosses": [
        "(slang, colloquial) only, just"
      ],
      "synonyms": [
        {
          "word": "hanya"
        },
        {
          "word": "saja"
        }
      ],
      "tags": [
        "colloquial",
        "slang"
      ]
    }
  ],
  "word": "doang"
}