How to use the source-map.SourceMapConsumer.ORIGINAL_ORDER function in source-map

if (last.columnStart < mapping.originalColumn) {
            last.columnEnd = mapping.originalColumn;
          } else {
            // Skip this duplicate original location,
            return;
          }
        }

        originalMappings.push({
          line: mapping.originalLine,
          columnStart: mapping.originalColumn,
          columnEnd: Infinity
        });
      },
      null,
      SourceMapConsumer.ORIGINAL_ORDER
    );
  }

  return fileMappings;
}