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Immutable vs Unmodifiable collection
...odifiable collection, you can't rely on the contents not changing.
An immutable collection guarantees that nothing can change the collection any more. If it wraps a modifiable collection, it makes sure that no other code has access to that modifiable collection. Note that although no code can chang...
What “things” can be injected into others in Angular.js?
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Rather that just fill in the table with "yes" and "no" with no explanation, I'll go into a little bit more detail.
[Note, added after finishing: this ended up being... quite a bit longer than I expected. There's a tl;dr at the bottom, but I hope this pr...
Call An Asynchronous Javascript Function Synchronously
... may be able to try out the code below.
See kangax's es2017 compatibility table for browser compatibility.
Here's an example async await function called doAsync which takes three one second pauses and prints the time difference after each pause from the start time:
function timeoutPromise (ti...
C++ unordered_map using a custom class type as the key
...called "bucket count". A bucket is a slot in the container's internal hash table, see e.g. unordered_map::bucket_count for more information.
– honk
Feb 15 at 8:23
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Swift native base class or NSObject
...r by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++.
6 Answers
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How can I use NSError in my iPhone App?
... // init dictionary to be used to populate error object
NSMutableDictionary* details = [NSMutableDictionary dictionary];
[details setValue:@"ran out of money" forKey:NSLocalizedDescriptionKey];
// populate the error object with the details
*error = [NSError err...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
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VM "intrinsification." ie CAS (Compare-And-Swap) used in Lock-Free Hash Tables
eg:sun.misc.Unsafe.compareAndSwapInt
it can make real JNI calls into native code that contains special instructions for CAS
read more about CAS here http://en.wikipedia.org/wiki/Compare-and-swap
The sun.misc.Unsafe fu...
Solr vs. ElasticSearch [closed]
...Maturity: Solr is more mature, but ES has grown rapidly and I consider it stable
Performance: hard to judge. I/we have not done direct performance benchmarks. A person at LinkedIn did compare Solr vs. ES vs. Sensei once, but the initial results should be ignored because they used non-expert setup ...
Image width/height as an attribute or in CSS? [duplicate]
...entational attributes regardless of where you put them. For semantics we establish what the image means to content in the alt tag. I don't remember why it was so important to width/height in the HTML but I suspect it was in case you hit browsers without CSS rendering. It's not a semantics issue. If ...
Redis strings vs Redis hashes to represent JSON: efficiency?
...d HSET commands is still O(1): the hash will be converted into a real hash table as soon as the number of elements it contains will grow too much
But you should not worry, you'll break hash-max-ziplist-entries very fast and there you go you are now actually at solution number 1.
Second option wil...