There are multiple ways to write code - novice, intermediate, and ninja-level. Let's see some examples below and see how good coding practices can improve code performance as well. Based on the examples below, I urge each developer to review their codes at least once or twice to improve it.
Let us say we have a method.
  1. private List<Data> getdata()
  2. {
  3. return new List<Data>(); // Let us suppose this method returns 10000 rows of Data Object
  4. }
Now, the coder is tasked to iterate over it.
  1. for( i=0; i < getdata (); i++) { // }
The above method was written casually or it may be there wasn't much time to spend on it or perhaps the coder was new to programming.
After a review, it was changed to below,
  1. var data=GetData();
  2. for( i=0; i < data ; i++) { // }
The call to GetData() is reduced to one, and thus it increased performance overheads.
Let us take another good example, it involves if-else statements.
See code below,
  1. if (IsolatedStorageWrapper.LoadString(“ShowTipsAndTricks”) == “”)
  2. {
  3. IsolatedStorageWrapper.SaveString(“ShowTipsAndTricks”, “true”);
  4. }
  5. else
  6. {
  7. IsolatedStorageWrapper.SaveString(“ShowTipsAndTricks”, “”);
  8. }
After review,
  1. IsolatedStorageWrapper.SaveString(“ShowTipsAndTricks”, IsolatedStorageWrapper.LoadString(“ShowTipsAndTricks”) == “” ? “true” : “”);
After another review,
  1. var loadedStringValue=IsolatedStorageWrapper.LoadString(“ShowTipsAndTricks”) == “” ? “true” : “”;
  3. IsolatedStorageWrapper.SaveString(“ShowTipsAndTricks”, loadedStringValue);
After another review,
  1. var loadedStringValue = IsolatedStorageWrapper.LoadString( “ShowTipsAndTricks” ) == “” ? “true” : “”;
  2. IsolatedStorageWrapper.SaveString( “ShowTipsAndTricks” , loadedStringValue );