What is gcd in ios swift?

769

---

What is ios selector?

772

---

What is a memory leak in ios?

723

---

What is array in ios?

740

---

What is block in ios swift?

862

---

What is block in ios?

749

---

What is callback in ios?

743

---

What is category and extension in ios?

736

---

What is category in ios?

717

---

What is closures in ios?

726

---

What is completion handler in ios?

782

---

What is difference between category and extension in ios?

723

---

What is difference between weak and strong in ios?

728

---

What is ios appdelegate?

773

---

What is ios closure?

695

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