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Syntax highlighting code with Javascript [closed]
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jQuery Syntax Highlighter is a new one based on Google's Prettify - a really really really popular plain javascript syntax highlighter.
It supports such things as code and pre blocks, able to use classnames like language-javascript to indicate we want it to highl...
Why is the order in dictionaries and sets arbitrary?
...ash values are assigned to slots in a dynamic table (it can grow or shrink based on needs). And that mapping process can lead to collisions, meaning that a key will have to be slotted in a next slot based on what is already there.
Listing the contents loops over the slots, and so keys are listed in...
How to include (source) R script in other scripts
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Here is a function I wrote. It wraps the base::source function to store a list of sourced files in a global environment list named sourced. It will only re-source a file if you provide a .force=TRUE argument to the call to source. Its argument signature is otherwise...
Expand/collapse section in UITableView in iOS
...sing the UITableView or the headers that are already there will be a pain. Based on the way they work now, I am not sure you can easily get actions out of them. You could set up a cell to LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section i...
Should a Netflix or Twitter-style web service use REST or SOAP? [closed]
.... Hell, us devs already know how to do that, we have been dealing with databases for years that have tables and columns and SQL statements that have SELECT, INSERT, UPDATE and DELETE. It should have been a piece of cake.
There are other parts of REST that some people discuss, such as self-descripti...
Entity framework linq query Include() multiple children entities
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Years later, I would not recommend the string-based includes, because they aren't runtime safe. If the navigation property name ever changes or is misspelled, it will break. Strongly suggest using the typed include instead.
– Jeff Putz
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Can enums be subclassed to add new elements?
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The reason I want to extend is because I'd like to have a base class called e.g. IntEnum, that looks like this: stackoverflow.com/questions/1681976/enum-with-int-value-in-java/…. Then all my enums could extend it...in this case just benefitting from inheritance and thus I wouldn'...
Design Patterns: Factory vs Factory method vs Abstract Factory
...family of objects that need to be of "the same kind", and have some common base classes. Here's a vaguely fruit-related example. The use case here is that we want to make sure that we don't accidentally use an OrangePicker on an Apple. As long at we get our Fruit and Picker from the same factory, th...
What is difference between Errors and Exceptions? [duplicate]
... it. like try something else or write to the log.
try{
//connect to database 1
}
catch(DatabaseConnctionException err){
//connect to database 2
//write the err to log
}
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Two single-column indexes vs one two-column index in MySQL?
...nation of giver_id and recipient_id. Mind that index criteria is leftmost based - a query referring to only recipient_id would not be able to use the covering index in the statement I provided.
Additionally, MySQL can only use one index per SELECT so a covering index would be the best means of opt...