Function nops

src/math-json/utils.ts:171–176

(expr: MathJsonExpression | null | undefined)

}

export function nops(expr: MathJsonExpression | null | undefined): number {
  if (expr === null || expr === undefined) return 0;
  if (Array.isArray(expr)) return Math.max(0, expr.length - 1);
  if (isFunctionObject(expr)) return Math.max(0, expr.fn.length - 1);
  return 0;
}

export function unhold(
  expr: MathJsonExpression | null