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What does “hashable” mean in Python?
...unhashable
List of immutable types:
int, float, decimal, complex, bool, string, tuple, range, frozenset, bytes
List of mutable types:
list, dict, set, bytearray, user-defined classes
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Are foreign keys really necessary in a database design?
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That's a horrible answer FKs genaerally can add extra overhead not improve performance.
– Agile Jedi
Feb 13 '15 at 18:42
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What is Delegate? [closed]
...eferred to as type safe function pointer. Here I am giving an example with String.
The following example shows a delegate operation:
namespace MyDelegate
{
class Program
{
private delegate void Show(string s);
// Create a method for a delegate.
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How to compute the sum and average of elements in an array?
...age is: " + avg );
Just iterate through the array, since your values are strings, they have to be converted to an integer first. And average is just the sum of values divided by the number of values.
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Trusting all certificates with okHttp
...public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
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Response.Redirect to new window
...ponseHelper
{
public static void Redirect(this HttpResponse response, string url, string target, string windowFeatures)
{
if ((String.IsNullOrEmpty(target) || target.Equals("_self", StringComparison.OrdinalIgnoreCase)) && String.IsNullOrEmpty(windowFeatures))
{
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Swift - Split string over multiple lines
How could I split a string over multiple lines such as below?
15 Answers
15
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How to create EditText with rounded corners? [closed]
...ent"
android:layout_height="wrap_content"
android:text="@string/hello"
android:background="@drawable/rounded_edittext_states"
android:padding="5dip" />
</LinearLayout>
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Using a Single Row configuration table in SQL Server database. Bad idea?
... same default value (null/empty?)
negative: everything has to be stored as strings (ie. nvarchar)
negative: when dealing with the settings in code, you have to know what type a setting is and cast it
The single row option is by far the easiest one to work with. This is because you can store each se...
How do I copy the contents of a String to the clipboard in C#? [duplicate]
If I have some text in a String, how can I copy that to the clipboard so that the user can paste it into another window (for example, from my application to Notepad)?
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