Meaning of YOU in English

you strong form BrE AmE juː , weak forms ju jə , before a vowel also §j —(1) Learners of British English are advised not to use weak forms other than ju ; jə is unusual in Received Pronunciation, while j is clearly non-Received Pronunciation. In General American, on the other hand, the weak form jə is acceptable. —(2) The initial j of this word readily coalesces with the final t or d of a preceding word to give tʃ or dʒ respectively: don't you ˈdəʊntʃ u AmE ˈdoʊntʃ ə, did you ˈdɪdʒ u AmE -ə

Longman Pronunciation English Dictionary.      Английский словарь произношений Longman.