Where can we test the apple iphone apps if we don’t have an ios device?

840

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What is a guard statement? What is the benefit of using guard statement in swift?

835

---

Is swift an object-oriented programming language?

869

---

How can we make a property optional in swift?

922

---

Explain grand central dispatch (gdc).

859

---

What are the collection types that are available in swift?

824

---

Which is the superclass of all the view controller objects?

866

---

How can we define a base class in swift?

872

---

Explain swift vs objective-c.

918

---

Explain core data.

862

---

Explain the usage of class and benefits of inheritance.

845

---

What is optional binding?

904

---

What are the advantages of using swift?

869

---

What type of objects are basic data types in swift?

856

---

What are lazy stored properties, and how are they useful?

846

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