Function isNumberObject

src/math-json/utils.ts:24–28

(
  expr: MathJsonExpression | null
)

}

export function isNumberObject(
  expr: MathJsonExpression | null
): expr is MathJsonNumberObject {
  return expr !== null && typeof expr === 'object' && 'num' in expr;
}

export function isSymbolObject(
  expr: MathJsonExpression | null