Difference between nil and Nil.

513

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Difference between coredata & sqlite?

505

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What is meaning of 'copy' keyword?

488

---

What is fast enumeration?

500

---

How to parse xml? Explain

462

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What are the Steps for using coredata?

500

---

What is autorealease pool?

543

---

What is ipad screen size?

471

---

What is use of nsoperation? How nsoperationque works?

434

---

What is meaning of 'assign' keyword?

519

---

How to start a thread?

420

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How to parse json? Explain

489

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What are the features is ios 12.1?

487

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What is meaning of 'readonly' keyword?

503

---

What is latest ios version?

472

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