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MongoDB vs. Cassandra [closed]
... the multi-granularity locking it does.
For analytics, MongoDB provides a custom map/reduce implementation; Cassandra provides native Hadoop support, including for Hive (a SQL data warehouse built on Hadoop map/reduce) and Pig (a Hadoop-specific analysis language that many think is a better fit for...
What is aria-label and how should I use it?
... use a mouse. This includes smartphone users. Would be good to implement a custom Tooltip solution that works for ALL users, with/without a mouse, and also with a screen reader e.g. what Bootstrap offers
– Hrvoje Golcic
Jul 18 at 11:37
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.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
...T> for standard collections and Collection<T> as a base class for custom collections. Hashtable has been largely replaced by Dictionary<TKey, TValue>. I would recommend avoiding ArrayList and Hashtable for new code.
– Sam Harwell
May 23 '13 at 5:...
Convert Linq Query Result to Dictionary
...nt to add some rows to a database using Linq to SQL, but I want to make a "custom check" before adding the rows to know if I must add, replace or ignore the incomming rows.
I'd like to keep the trafic between the client and the DB server as low as possible and minimize the number of queries.
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Proper way to use AJAX Post in jquery to pass model from strongly typed MVC3 view
...e to me. If you're really concerned about it though, you can always make a custom model binder on the mvc side.
– Craig M
May 12 '11 at 18:31
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“Uncaught TypeError: Illegal invocation” in Chrome
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In your code you are assigning a native method to a property of custom object.
When you call support.animationFrame(function () {}) , it is executed in the context of current object (ie support). For the native requestAnimationFrame function to work properly, it must be executed in the co...
What's wrong with foreign keys?
..."no, we enforce that in the application." Except I did a survey of all the customer databases and found most of them did have orphans...
– ErikE
Sep 13 '10 at 0:34
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Ember.js or Backbone.js for Restful backend [closed]
...r overlapping functionality and you'll probably end up assembling your own custom framework that is bigger and requires more glue code than if you'd just used Ember.
Ultimately the question of "which to use" has two answers.
First, "Which should I use, generally, in my career": Both, just like you...
Querying DynamoDB by date
...powerful (think of partition keys as creating a new table for each user or customer, etc...).
Queries can only be done in a single partition. That's really the end of the story. This means if you want to query by date (you'll want to use msec since epoch), then all the items you want to retrieve i...
Surrogate vs. natural/business keys [closed]
... I disagree. It is often the case where some outside body (the customer) legislates that a natural key needs to be edited, and therefore propagated throughout the system. I see this happen regularly. The only way you can be sure that the key won't ever need to change is when it is by def...