Dictionary swift

//Dictionary is a key value pair. It is in unorder
var score:Dictionary = ["Rahul":70, "Dhoni":183, "Kholi":140]
//another way var score[String,Int] = ["Rahul":70, "Dhoni":183, "Kholi":140]

print(score.count)
print(score["Rahul"])

//update Value
score.updateValue(100, forKey: "Dhoni")

//remove Value
score.removeValue(forKey: "Rahul")

print(score.isEmpty)

//insert value
score["Ishant"] = 2

print(score)

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