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Accessing members of items in a JSONArray with Java
... recs.length(); ++i) {
JSONObject rec = recs.getJSONObject(i);
int id = rec.getInt("id");
String loc = rec.getString("loc");
// ...
}
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How to use ? : if statements with Razor and inline code blocks
...u need to display the value of a property (including a string) rather than calling ToString() - Which didn't work in my case. You can do this @(condition ? $"{foo.bar}" : "Default")
– Dan Harris
Feb 6 '18 at 16:18
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How do I negate a condition in PowerShell?
...
Perl has a more logical, in the Vulcan sense, idiom, called Unless, which is written as a function. Being half Vulcan, I prefer it, and have implemented it in both C#, as a function, and in C and C++, as a macro.
– David A. Gray
May 30 '18...
Types in MySQL: BigInt(20) vs Int(20)
... in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Practically, it affects only the ZEROFILL option:
CREATE TABLE foo ( bar INT(20) ZEROFILL );
INSERT INTO foo (bar) VALUES (1234);
S...
Foreign key from one app into another in Django
...example, if the Manufacturer model above is defined in another application called production, you'd need to use:
class Car(models.Model):
manufacturer = models.ForeignKey('production.Manufacturer')
Have you tried putting it into quotes?
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What is the purpose of the vshost.exe file?
...ment).
The purpose of it is mostly to make debugging launch quicker - basically there's already a process with the framework running, just ready to load your application as soon as you want it to.
See this MSDN article and this blog post for more information.
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Scala equivalent of Java java.lang.Class Object
...like the erasure of the static type of the expression on which getClass is called
It would let me do something like the following where I want to introspect on a class but shouldn't need a class instance.
I also want to limit the types of classes I want to introspect on, so I use Class[_ <: Foo]....
How to exclude property from Json Serialization
...embers that shouldn't be serialized. See the example taken from here:
Consider the following (simplified) case:
public class User {
public int Id { get; set; }
public string Name { get; set; }
[ScriptIgnore]
public bool IsComplete
{
get { return Id > 0 && !str...
In Clojure, when should I use a vector over a list, and the other way around?
..."Generating Code" = "Inside a Macro" (because most of the code is function calls, thus lists) ; "generating back to front" = "building a sequence by prepending".
– omiel
Apr 4 '14 at 5:14
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Fastest way to implode an associative array with keys
...tes a URL-encoded query string from the associative (or indexed) array provided.
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