...ggregate functions to database queries, but products->sum implies it is call sum on a collection object, rather than on the builder object returned by products(). It's worth clarifying which one you mean here, and ideally provide a link to explain both. – Benubird ...

... I have installed this. It doesn't completed close tag automatically.What is the shortkey? I try Ctrl-_, but this make small font of my terminal. – alhelal Apr 3 '18 at 1:25 ...

...haves as if each string were lowercased. That is, it behaves as if you had called lower() on each string, as in number 3 above. The advantage is that programmers don't have to remember to lowercase strings. But you need to read the sections "String Comparison Behavior" and "Limitations" in the docs ...

...tually there seems to be one. Say in C#, superclass constructor should not call any overridable (virtual) methods, because nobody knows how they would react with not fully initialized subclass. In Swift is ok, as subclass-extra state is fine, when superclass constructor is running. Moreover, in Swif...

... set of LinearLayouts. Using weight I have the set resizing itself automatically based on the size of the containing parent LinearLayout. The idea is, based on the pixel count and density of the screen, to set the size of the containing layout to a number of pixels; and have the button set resize it...

...d some obvious things (want to build tool tip text with a function that is called when the tip is displayed) and is a hefty download (partly because it appears to include a lot of stuff like rounded corner styling). Hopefully not seen as negative -- just trying to save someone else some time. Defini...

... that console.log(obj1, obj2) works very nicely, too, so you don't have to call console.log() for every object when logging multiple variables. Also, always remember to remove all such calls in production, as it will break browsers that do not implement it (such as Internet Explorer). ...

....3.2) and swapped it out for 1.6.1. Everything was working, except .ajax() calls. Adding the above line fixed the problem. share | improve this answer | follow ...

... use the key! Neither do I! Thankfully, there’s a nifty little tool called ssh-agent that can save your passphrase securely so you don’t have to re-enter it. If you’re on OSX Leopard or later your keys can be saved in the system’s keychain to make your life even easier. Most lin...

...LOG(v1.12.0, October 16th, 2005): Introduce read-only records. If you call object.readonly! then it will mark the object as read-only and raise ReadOnlyRecord if you call object.save. object.readonly? reports whether the object is read-only. Passing :readonly => true to any fin...