gitlab-org--gitlab-foss/app/assets/javascripts/helpers/diffs_helper.js

export function hasInlineLines(diffFile) {
  return diffFile?.highlighted_diff_lines?.length > 0;
}

export function hasParallelLines(diffFile) {
  return diffFile?.parallel_diff_lines?.length > 0;
}

export function isSingleViewStyle(diffFile) {
  return !hasParallelLines(diffFile) || !hasInlineLines(diffFile);
}

export function hasDiff(diffFile) {
  return hasInlineLines(diffFile) || hasParallelLines(diffFile) || !diffFile?.blob?.readable_text;
}