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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...le libraries. Essentially, React knows when to re-render the scene because it is able to observe when this data changes. Dirty checking is slower than observables because you must poll the data at a regular interval and check all of the values in the data structure recursively. By comparison, settin...
What are OLTP and OLAP. What is the difference between them?
...m don't give me an idea, or my knowledge is too insufficient to understand it.
5 Answers
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How do I update a GitHub forked repository?
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In your local clone of your forked repository, you can add the original GitHub repository as a "remote". ("Remotes" are like nicknames for the URLs of repositories - origin is one, for example.) Then you can fetch all the branches from that upstream repository, a...
How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
...lled when that last name is used as the search term (which happens to be quite often now). The error received (thanks Fiddler!) is:
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REST URI convention - Singular or plural name of resource while creating it
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The premise of using /resources is that it is representing "all" resources. If you do a GET /resources, you will likely return the entire collection. By POSTing to /resources, you are adding to the collection.
However, the individual resources are available at /re...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...rders (orders are a list in the customer object). There can't be an order without a customer. So the customer seems to be the owner of the orders.
But in the SQL world, one item will actually contain a pointer to the other. Since there is 1 customer for N orders, each order contains a foreign key t...
Can I multiply strings in Java to repeat sequences? [duplicate]
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The easiest way in plain Java with no dependencies is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is ...
SQL JOIN and different types of JOINs
...follow
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edited Mar 7 '18 at 19:23
TylerH
18.1k1212 gold badges6161 silver badges8080 bronze badges
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CSS Font Border?
With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop?
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What is the use of static constructors?
...atic constructor. Why and when would we create a static constructor and is it possible to overload one?
7 Answers
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