diffWords

diffWords(before: string, after: string, options?: DiffOptions): DiffInlineResult

interface DiffInlineResult {
  before: readonly DiffSegment[];
  after: readonly DiffSegment[];
  similarity: number;
}

DiffInlineResult diffWords(String before, String after, [DiffOptions? options]);

class DiffInlineResult {
  final List<DiffSegment> before;
  final List<DiffSegment> after;
  final double similarity;
}

Compares two lines a word at a time: runs of letters and digits, runs of whitespace, and every other character on its own. This is the comparison diffText runs inside a pair of changed lines, reachable on its own for a heading, a title, a cell of a table.

A side each rather than one list between them, so joining a side back together gives the text that was passed in for it. diffCharacters is the same answer a character at a time.