Arrays VBScript | Automation Testing QTP/UFT

Arrays VBScript

Arrays are two types – Static Array & Dynamic Array

What is an Array

Array is a collection of data with different types of data type.

Syntax:

Dim ArrayName(size)

Where, “ArrayName” is the unique name for the array and “size” is a numeric value that indicates the number of elements in the array dimension within the array.

Example:

Dim arrayvalue(3)

It stores 4 values. The array always starts from 0.

Assigning values to the array:

arrayvalue (0) = 1
arrayvalue (1) = 2
arrayvalue (2) = 3
arrayvalue (3) = 4

There are two types of arrays: 1. Static Array, 2. Dynamic Array.

Static Array:

It has a specific number of elements. Once assigned, size of a static array can’t be modified at runtime.

Dynamic Array:

Size of a dynamic array can be modified at runtime.

Lower Bound & Upper Bound of Array:

Dim arrayvalue(3)
Msgbox lbound(arrayvalue)
Msgbox ubound(arrayvalue)

Size of the Array:

Dim arrayvalue(3)
Msgbox “The array size is ”& Ubound(arrayvalue) + 1

Another way to assigning Array:

Syntax:

array(arglist)

Example:

Dim arrayvalue
Arrayvalue = array(91,92,93,94)
Msgbox Ubound(arrayvalue)
Msgbox Arrayvalue(0)
Msgbox Arrayvalue(1)
Msgbox Arrayvalue(2)
Msgbox Arrayvalue(3)

REDIM:

It recreates the array and erases all the old data

PRESERVE:

Preserve should be used along with redim. It will retain the old data.

SINGLE DIMENSION ARRAY:

Dim arrayvalue(1)
arrayvalue(0)=10
arrayvalue(1)=20
msgbox arrayvalue(0)
msgbox arrayvalue(1)

MULTI DIMENSION ARRAY:

Dim arrayvalue(1,1)
arrayvalue(0,0)=10
arrayvalue(0,1)=20
arrayvalue(1,0)=30
arrayvalue(1,1)=40
msgbox arrayvalue(0,0)
msgbox arrayvalue(0,1)
msgbox arrayvalue(1,0)
msgbox arrayvalue(1,1)

Some Examples:

Without Preserve

dim stm()
redim stm(1)
stm(0)=1
stm(1)=2
msgbox stm(0)
msgbox stm(1)
redim stm(2) ‘REDIM WITHOUT PRESERVE
stm(2)=3
msgbox stm(0)
msgbox stm(1)
msgbox stm(2)

With Preserve

dim stm()
redim stm(2)
stm(0)=11
stm(1)=22
stm(2)=33
msgbox stm(0)
msgbox stm(1)
msgbox stm(2)
redim preserve stm(3) ‘REDIM WITH PRESERVE
stm(3)=44
msgbox stm(0)
msgbox stm(1)
msgbox stm(2)
msgbox stm(3)

Redim Preserve with Multi-Dimensional Array

dim Stm()
redim Stm(1,1)
stm(0,0)=10
stm(0,1)=20
stm(1,0)=30
stm(1,1)=40
msgbox stm(0,0)
msgbox stm(0,1)
msgbox stm(1,0)
msgbox stm(1,1)
redim preserve stm(1,2)
stm(0,2)=50
stm(1,2)=60
msgbox stm(0,0)
msgbox stm(0,1)
msgbox stm(1,0)
msgbox stm(1,1)
msgbox stm(0,2)
msgbox stm(1,2) 

VBScript Series:

• Control Statements VBScript | Automation Testing QTP/UFT
• VBScript for Automation (QTP/UFT) Testing – Part 1
• VBScript for Automation (QTP/UFT) Testing – Part 2
• VBScript for Automation (QTP/UFT) Testing – Part 3
• VBScript for Automation (QTP/UFT) Testing – Part 4
• VBScript for Automation (QTP/UFT) Testing – Part 5