Jared Davidson's swift sort demo

SortDemo.swift

//Jared Davidson's swift sort demo
//run in xcode 7.1 and swift 2.1
var ary = [0, 10, 8, 2]
ary = ary.sort({ $0 < $1 })
print(ary)
//[0, 2, 8, 10]
    
var strs = ["objectivec", "swift", "js", "as"]
strs.sortInPlace({$0 < $1})
print(strs)
//["as", "js", "objectivec", "swift"]

struct DataObj {
    let version: Double
    let dataValue: String
}

var structAry: [DataObj] = [DataObj(version: 3, dataValue: "as"), DataObj(version: 2, dataValue: "ObjectiveC"), DataObj(version: 2.1, dataValue: "Swift")]
structAry.sortInPlace({$0.version < $1.version})
print(structAry)
//[DataObj(version: 2.0, dataValue: "ObjectiveC"), DataObj(version: 2.1, dataValue: "Swift"), DataObj(version: 3.0, dataValue: "as")]