A hot debate about the subject can be found here: Width attribute for image tag versus CSS To sum it up: The gain from declaring a width value and an height value (which may not be the original physical dimensions of the image) or from css declarations (like width: [valueX]; height: [valueY];) is that it … Read more
Edit 2: I had another potential thought here: You mentioned that you are running on x64. I’ve tested this same issue on x86, and seen the same performance when using auto-properties vs. fields. However, if you look around on Connect and mailing list/forum posts, there are many references online to the fact that the x64 … Read more
Here is a good set of guidelines for when to use properties vs methods from Bill Wagner (fixed link) Use a Property when all these are true: The getters should be simple and thus unlikely to throw exceptions. Note that this implies no network (or database) access. Either might fail, and therefore would throw an … Read more
It doesn’t get much better than Apache’s Commons Configuration API. This provides a unified approach to configuration from Property files, XML, JNDI, JDBC datasources, etc. It’s handling of property files is very good. It allows you to generate a PropertiesConfigurationLayout object from your property which preserves as much information about your property file as possible … Read more
Property binding like [trueValue]=”…” evaluates the expression “…” and assigns the value “true” evaluates to the value true “Y” is unknown. There is no internal Y value in TypeScript and no property in the component class instance, which is the scope of template binding. In this case you would want [trueValue]=”‘Y'” Note the additional quotes … Read more
The only way you can inject values into a final field is through Constructor Injection. Everything else would be an awful hack on Spring’s side.
I have never come across a valid use-case for a write-only property. Honestly, if there is a valid use-case for a write-only property I think it is safe to say that the solution is poorly designed. If you need “write-only” semantics you should use a method. For instance, another user has found an example of … Read more
I think what you’re looking for are called class extensions. You would declare the property read-only in the header: @interface MyClass : NSObject { } @property (readonly, assign) NSInteger myInteger; @end Then redeclare in your class extension in the implementation file: @interface MyClass () @property (readwrite, assign) NSInteger myInteger; @end @implementation MyClass @end For more … Read more
Update 8 years later (wow!) to cover c# 6’s null-conditional operator: var value = maybeNull?.ToString() ?? String.Empty; Other approaches: object defaultValue = “default”; attribs.something = (entry.Properties[“something”].Value ?? defaultValue).ToString() I’ve also used this, which isn’t terribly clever but convenient: public static string ToSafeString(this object obj) { return (obj ?? string.Empty).ToString(); }
You need to use virtual keyword abstract class Base { // use virtual keyword public virtual int x { get { throw new NotImplementedException(); } } } or define an abstract property: abstract class Base { // use abstract keyword public abstract int x { get; } } and use override keyword when in the … Read more