The IsArray function returns a Boolean value that indicates whether a specified variable is an array. If the variable is an array, it returns True, otherwise, it returns False.
IsArray 函数可返回 Boolean 值指明某变量是否为数组。是则返回True，不是则返回False

语法

IsArray(variable)

实例 1

dim a(5)
a(0)="Saturday"
a(1)="Sunday"
a(2)="Monday"
a(3)="Tuesday"

a(4)="Wednesday"
document.write(IsArray(a))

输出:

True

实例 2

dim a
a="Saturday"
document.write(IsArray(a))

输出:

False

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