Is the Array Dimensioned?

Is the Array Dimensioned?

Use this function to determine whether a dynamic array has been dimensioned. I use dynamic arrays to store small, foreign key tables locally for fast lookups. Not wanting to load all the arrays initially, I load them only when needed and only once.

I wanted to exploit the fact that the array hasn’t yet been dimensioned as the indicator to load, instead of a Boolean variable, but I ran into complications with the standard tests in VB. My function returns True if the dynamic array passed to it has yet to be ReDim’d:

 Public Function IsArrayEmpty(aArray As Variant) As Boolean	On Error Resume Next	IsArrayEmpty = UBound(aArray)	IsArrayEmpty = Err ' Error 9 (Subscript out of range)End Function

Use this test code:

 Option Explicit Private Sub cmdTest_Click()	Dim aDynamic() As Integer	MsgBox IsArrayEmpty(aDynamic)	ReDim aDynamic(8)	MsgBox IsArrayEmpty(aDynamic)End Sub 
Share the Post:
XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of

kubernetes logging

Kubernetes Logging: What You Need to Know

Kubernetes from Google is one of the most popular open-source and free container management solutions made to make managing and deploying applications easier. It has a solid architecture that makes

ransomware cyber attack

Why Is Ransomware Such a Major Threat?

One of the most significant cyber threats faced by modern organizations is a ransomware attack. Ransomware attacks have grown in both sophistication and frequency over the past few years, forcing

data dictionary

Tools You Need to Make a Data Dictionary

Data dictionaries are crucial for organizations of all sizes that deal with large amounts of data. they are centralized repositories of all the data in organizations, including metadata such as