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Async/await vs BackgroundWorker
...w:
BackgroundWorker is meant to model a single task that you'd want to perform in the background, on a thread pool thread. async/await is a syntax for asynchronously awaiting on asynchronous operations. Those operations may or may not use a thread pool thread or even use any other thread. So, th...
How do you know when to use fold-left and when to use fold-right?
...like a list iteration, one that would be simple to write in tail-recursive form, foldl is the way to go.
But really this will be probably be most evident from the associativity of the operators you are using. If they are left-associative, use foldl. If they are right-associative, use foldr.
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Elastic search, multiple indexes vs one index and types for different data sets?
...ill incur more storage with each additional shard being created and the performance gain is marginal.
Recommended if your data set is big and your queries are taking a long time to process, since dedicated shards are storing your specific data and it will be easier for Elasticsearch to process.
Im...
Which way is best for creating an object in JavaScript? Is `var` necessary before an object property
...ance cannot work like. Hence, JavaScript provides the prototype chain as a form of inheritance, making JavaScript a prototypal language.
If you have a parent and a parent shares many properties of a child, then the child should inherit those properties. Prior to ES5, it was accomplished as follows...
Should *.xccheckout files in Xcode5 be ignored under VCS?
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As I said in my answer, the xccheckout file contains information for all repositories used in a workspace. That's the case regardless of what SCM system they use - such a workspace can be in svn or git, and its projects can be in a mix of svn and git repositories.
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How can you program if you're blind?
...g Jaws and a set of scripts that were developed to make things such as the form designer more accessible.
For C and C++ programming I use cygwin with gcc as my compiler and emacs or vim as my editor depending on what I need to do. A lot of my internship involved programming for Z/OS. I used an rlo...
RegEx match open tags except XHTML self-contained tags
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Also, scraping fairly regularly formatted data from large documents is going to be WAY faster with judicious use of scan & regex than any generic parser. And if you are comfortable with coding regexes, way faster to code than coding xpaths. And almost c...
Read an Excel file directly from a R script
... can obviously loop over them all], included plots, etc.). But for a well-formed, rectangular spreadsheet with plain numbers and character data (i.e., not comma-formatted numbers, dates, formulas with divide-by-zero errors, missing values, etc. etc. ..) I generally have no problem with this process...
How to work with complex numbers in C?
...C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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Truncating long strings with CSS: feasible yet?
...his same problem too. I can't believe Firefox doesn't support this in some form yet.
– mcjabberz
Aug 24 '09 at 18:42
d...