(1) Integer division operators / and / /
/ Radi / fast 10 times (if it is an integer division and does not need to keep a decimal)
(2) Assignment operator A = B and A = A B
= Fast
(3) Series operators &
Use & fast
(source:
http://www.devcity.net/newsletter/archive/devcity/devcity20040315.htm#ni030)
.NET PRO:
Optimize the Performance of VB.NET Applications
Operators
By Mike McINTyre
Division: / v.s. /
Divide integral values with the / (back slash) operator when you do not need decimal points or fractional values. The / operator is the integral division operator and it is up to 10 times faster than the / (forward slash) operator.
Compound Assignment Operators: a = b v.s a = a b
Compound Assignment Statements First Perform An Operation ON AN Argument Before Assigning It To Another Argument. EXAMPLE:
A = B
In the example above, b is added to the value of a, and that new value is then assigned to a. Compound assignment operators are more concise than their constituent operators (separate and =). Compare the statement above to the one below. The Statement Above Is A Shorthand Equivalent of The Statement Below.
A = a b
Compound assignment operators are faster. If you are operating on an expression instead of a single variable, for example an array element, you can achieve a significant improvement with compound assignment operators.
Compound Assignment Operators for NumBers:
^ = * = / = / = = - =
Compound Operator for strings: & = esample:
Dim a as string = "first" a & = "name"
Result: First Name
Concatenation: & v.s.
