A StringBuilder
class based on the work of @Blackhawk, published under CC-BY-SA on Code Review Stack Exchange.
Concatenating strings in a loop is a very inefficient process. Using a StringBuilder
for concatenating a large number of strings makes the code much more efficient and noticeably enhances performance.
*Gave up, killed the process after 10 minutes.
With the StringBuilder
class added to your VBA project, use the New
keyword to create a new instance of the class:
Dim sb As StringBuilder
Set sb = New StringBuilder
This initializes the builder with a default initial capacity.
To specify an initial capacity and/or initial content, or to create an instance of the class from a VBA project that's referencing the VBA project the StringBuilder
class is loaded from (e.g. an add-in), use the Create
factory method off the default instance instead:
Dim sb As StringBuilder
Set sb = StringBuilder.Create("test", 32)
Use the Append
method to, well, append a string to the builder; use the ToString
method to retrieve the string:
Dim sb As StringBuilder
Set sb = StringBuilder.Create
Dim i As Long
For i = 1 To 100000
sb.Append "Test"
Next
Debug.Print sb.ToString
Instance members cannot be invoked from the default instance.