The Shulchan Aruch (and its forerunner, the Beit Yosef) was written from the standpoint of Sephardi minhag.
Aiming to avoid ambiguity or obscurity,[2] the work references the common Hassidic halakha with its underlying reasoning.
Chabad-hagiography has it that Shneur Zalman, whose works form the foundation of Chabad philosophy, finished the composition aged 20.
[3] Originally the work was intended to cover all of the topics addressed in the Shulchan Aruch of Rav Yosef Karo, however, most of the work was lost prior to publication with only Orach Chaim surviving intact, along with small fragments of Choshen Mishpat and Yoreh Deah.
The work is broadly considered an authoritative halachic text, and is frequently cited by later authorities such as Rabbi Yisrael Meir Kagan in his Mishnah Berurah and the Ben Ish Chai of Rabbi Yosef Chaim of Baghdad, as well as in many contemporary responsa by leading halachic authorities of the nineteenth and twentieth centuries.