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What is the difference between YAML and JSON?
...aning" to indentation a poor choice.
If the data format will be leaving an application's environment, parsed within a UI, or sent in a messaging layer, JSON might be a better choice.
YAML can be used, directly, for complex tasks like grammar definitions, and is often a better choice than inventing a...
What is the difference between a definition and a declaration?
...declares foo
}
... or is a typedef or using statement.
typedef long LONG_32; // declares LONG_32
using namespace std; // declares std
Now for the big reason why it's important to understand the difference between a declaration and definition: the One Definition Rule. From section 3.2.1 of t...
Fundamental difference between Hashing and Encryption algorithms
...ant an explanation, I'll do my best here:
Hash Functions
They provide a mapping between an arbitrary length input, and a (usually) fixed length (or smaller length) output. It can be anything from a simple crc32, to a full blown cryptographic hash function such as MD5 or SHA1/2/256/512. The point...
How do you check whether a number is divisible by another number (Python)?
...
@Chris_Rands Put that into an answer, people who do code-golf (like me) would be very happy. In fact, I came here looking for a golfed answer like that.
– MilkyWay90
Nov 11 '18 at 22:29
...
Hibernate Criteria returns children multiple times with FetchType.EAGER
I have an Order class that has a list of OrderTransactions and I mapped it with a one-to-many Hibernate mapping like so:
...
Why does the order in which libraries are linked sometimes cause errors in GCC?
...before one another: -la -lb -la.
Linking to dynamic libraries
$ export LD_LIBRARY_PATH=. # not needed if libs go to /usr/lib etc
$ g++ -fpic -shared d.cpp -o libd.so
$ g++ -fpic -shared b.cpp -L. -ld -o libb.so # specifies its dependency!
$ g++ -L. -lb a.cpp # wrong order (works on some distribut...
What is the optimal length for an email address in a database?
... Essentially, they’ll have a unique (sub-)email per each website/service/app. For example, let’s imagine that my normal email is my first name and last name at some company name: firstnameandlastone@superacmecompany.com. That’s already ~40 characters. Now, if I used a plus notation for a stack...
What are all the escape characters?
...
\a does not compile in javac 1.8.0_20: illegal escape character: String test = "\a";
– Ehryk
Mar 15 '15 at 18:18
3
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In php, is 0 treated as empty?
...
In case of numeric values you should use is_numeric function:
$var = 0;
if (is_numeric($var))
{
echo "Its not empty";
}
else
{
echo "Its empty";
}
share
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Convert JSON string to dict using Python
...he vague nomenclature used. Here is what I wrote to combat this: def read_json(json_data): if (type(json_data) == str): return json.loads(json_data) elif (str(type(json_data)) == "<class '_io.TextIOWrapper'>"): return json.load(json_data) I'm sure this can be improv...