What is weak in ios?

785

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What is reuse identifier?

733

---

What is strong weak in ios?

784

---

What is the current iphone ios?

815

---

What is the difference between viewdidload and viewwillappear?

760

---

What is the concurrency how many ways you know to achieve concurrency?

730

---

What is the protocol in ios?

770

---

What is called before viewdidload?

758

---

What is difference between static library and framework?

842

---

What is a serial queue?

756

---

What size is 1x and 2x?

693

---

Why is iboutlet weak?

766

---

What is appdelegate in xcode?

769

---

What language is ios based on?

790

---

What is thread in ios?

759

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