While Danielle was 10 years of age, she was discovered in a community theater where she played in two productions Peter Pan and The Wizard of Oz. Later, she moved to do voice-overs and commercials, including as a Barbie Girl for Mattel.
Danielle appeared in an American television series, Full House, which was created by Jeff Franklin. The show follows the story of a widowed father, Danny Tanner, who enlists his brother-in-law Jesse Katsopolis and best friend Joey Gladstone to help raise his three daughters, oldest D.J., middle child Stephanie and youngest Michelle in his San Francisco home. The other stars of this series were John Stamos, and Jodie Sweetin.
Danielle made her film debut in a teen film, Longshot, which was directed by Lionel C. Martin. The co-stars of the movie were Jessica Wesson and Zachary Ty Bryan. After the movie, she appeared in numerous movies including, National Lampoon Presents Dorm Daze, The Chosen One, and Boiling Pot.
Danielle is an American by nationality and belongs to white ethnicity. She was rumored for having affair with boyfriend Ben Savage, a Meets World co-star. However, in an interview with Maxim, she unveiled that it is just a rumor.
She accidentally met first time at The Tyra Banks Show, in fact, she and Savage only went on one dinner date as teenagers, and "by the time the dinner was over we realized mutually that we were more like family than lovers."
Danielle also dated Lance Bass while she was 27-years old, she began dating her boyfriend Tim Belusko. After dating him for three years, she engaged to Belusko in May 2012. Later, the couple got married in Los Angeles. However, she couldn't continue her married life with her husband and she got a divorce in March 2016. Later she began dating her new boyfriend, Jensen Karp.
Danielle is one of the richest American actress, who earns a huge amount of money from her acting career. She has also appeared in numerous high budget movies, from which she also collects a huge amount of money. According to some source, her current net worth is estimated to be $8 million.