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How can I use redis with Django?
...tl . If the key expires, you must go to the DB. So if the key is in redis, then you use it. Note that the simple implementation of this causes some problems: when a popular key expires you have en.wikipedia.org/wiki/Thundering_herd_problem, you want to use en.wikipedia.org/wiki/Negative_cache, and y...
How to set custom location for local installation of npm package?
... will install to "$(pwd)/vendor/node_modules". I can imagine settings this then forgetting about it, coming back later wondering why my global packages are acting weirdly.
– AnnanFay
Aug 4 '18 at 15:36
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When to use dynamic vs. static libraries
... to force the loading of the referenced DLL. Adding it as a reference, but then not including any call that references it will still get you the same result as having a static libary that doesn't call anything. The only difference is what actually ships. In both cases the static constructors and des...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
... Note that viewDidLoad will ALSO get called if the view is hidden and then unloaded for memory-related reasons, then reappears. What you can count on: viewDidLoad will be called AT LEAST ONCE when the view is first created and POSSIBLY more times when the view reappears after being hidden. vi...
When to use a key/value store such as Redis instead/along side of a SQL database?
...s isn't a relational database. If you're going to be needing an SQL "JOIN" then you won't want to use Redis, nor any other non-relational database. Redis is faster though than most relational databases. If you're only going to be doing key:value pair queries, then you'll want to use Redis.
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How to declare std::unique_ptr and what is the use of it?
...ay.
If you create an integer in heap space (using new keyword or malloc), then you will have to clear that memory on your own (using delete or free respectively).
In the below code,
int* heapInt = new int(5);//initialize int in heap memory
.
.//use heapInt
.
delete heapInt;
Here, you will have to ...
How are parameters sent in an HTTP POST request?
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how do you add a user and password authentication?
– m4l490n
Jan 7 at 15:55
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Is there a software-engineering methodology for functional programming? [closed]
...nsions would be useful in the problem domain in which you are working, and then use hygienic macros to add these constructs to your language. A good place to read about this kind of design is Matthew Flatt's article Creating Languages in Racket. The article may be behind a paywall. You can also fi...
What is the difference between `sorted(list)` vs `list.sort()`?
...r your third question would be NO.
Also if you do this using sorted(list), then you can get it use because it is not stored in the list variable. Also sometimes .sort() method acts as function, or say that it takes arguments in it.
You have to store the value of sorted(list) in a variable explicitl...
Is is possible to check if an object is already attached to a data context in Entity Framework?
...s. If an entity with
the given primary key values exists in the context, then it is
returned immediately without making a request to the store. Otherwise,
a request is made to the store for an entity with the given primary
key values and this entity, if found, is attached to the context and
...