description

# isMimeType method

1. @Since.new("2.17")

bool isMimeType(

1. String mimeType

)

Whether the UriData.mimeType is equal to `mimeType`.

Compares the `data:` URI's MIME type to `mimeType` with a case- insensitive comparison which ignores the case of ASCII letters.

An empty `mimeType` is considered equivalent to `text/plain`, both in the `mimeType` argument and in the `data:` URI itself.

## Implementation

    @Since("2.17")
    bool isMimeType(String mimeType) {
      int start = _separatorIndices[0] + 1;
      int end = _separatorIndices[1];
      if (start == end) {
        return mimeType.isEmpty ||
            identical(mimeType, "text/plain") ||
            _caseInsensitiveEquals(mimeType, "text/plain");
      }
      if (mimeType.isEmpty) mimeType = "text/plain";
      return (mimeType.length == end - start) &&
          _caseInsensitiveStartsWith(mimeType, _text, start);
    }