JavaScrip 数组

var arr= [1,2,3,4]
console.log(typeof(arr))
console.log(arr[0])

for (var i = 0; i < arr.length;i++){
console.log("arr[%d] = %d",i,arr[i])
}

//数值查找数组的位置
var res = arr.indexof(4)


============数组创建================

var arr1= new Array()
console.log(arr1)

var arr1= new Array(1,2,3,"savl")
console.log (arr1)



var arr1= new Array(10)
console.log(arr1)

============排序==================

var arr = new Array(4)
arr[0]=2
arr[1]=1
arr[2]=3
arr[3]= 5
arr[4]=6

arr.sort()

console.log(arr)