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Importing files from different folder
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Note: This answer was intended for a very specific question. For most programmers coming here from a search engine, this is not the answer you are looking for. Typically you would structure your files into packages (see other answers) instead of modifying t...
Deserializing JSON Object Array with Json.net
I am attempt to use an API that use the follow example structure for their returned json
5 Answers
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Overlaying histograms with ggplot2 in R
...w to R and am trying to plot 3 histograms onto the same graph.
Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off.
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How to remove text from a string?
...".replace('data-','');
console.log(ret); //prints: 123
Docs.
For all occurrences to be discarded use:
var ret = "data-123".replace(/data-/g,'');
PS: The replace function returns a new string and leaves the original string unchanged, so use the function return value after the replace(...
Why can't I define a default constructor for a struct in .NET?
In .NET, a value type (C# struct ) can't have a constructor with no parameters. According to this post this is mandated by the CLI specification. What happens is that for every value-type a default constructor is created (by the compiler?) which initialized all members to zero (or null ).
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Convert integer into byte array (Java)
... look at the ByteBuffer class.
ByteBuffer b = ByteBuffer.allocate(4);
//b.order(ByteOrder.BIG_ENDIAN); // optional, the initial order of a byte buffer is always BIG_ENDIAN.
b.putInt(0xAABBCCDD);
byte[] result = b.array();
Setting the byte order ensures that result[0] == 0xAA, result[1] == 0xBB, ...
Razor-based view doesn't see referenced assemblies
...g to create a strongly-typed view based on a class from another assembly. For whatever reason though, my Razor view doesn't seem to have any visibility of other assemblies referenced on my project. e.g.
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What is the difference between a var and val definition in Scala?
... to a var can. However, said object can have its internal state modified. For example:
class A(n: Int) {
var value = n
}
class B(n: Int) {
val value = new A(n)
}
object Test {
def main(args: Array[String]) {
val x = new B(5)
x = new B(6) // Doesn't work, because I can't replace the ...
When saving, how can you check if a field has changed?
...verride the __init__ method of models.Model so that you keep a copy of the original value. This makes it so that you don't have to do another DB lookup (which is always a good thing).
class Person(models.Model):
name = models.CharField()
__original_name = None
def __init__(self, *arg...
Where can I find the Java SDK in Linux after installing it?
...t install but I don't know where my jdk folder is. I need to set the path for that. Does any one have a clue on the location?
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