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How do I copy a hash in Ruby?
...
Hash can create a new hash from an existing hash:
irb(main):009:0> h1 = {1 => 2}
=> {1=>2}
irb(main):010:0> h2 = Hash[h1]
=> {1=>2}
irb(main):011:0> h1.object_id
=> 2150233660
irb(main):012:0> h2.object_id
=> 215020506...
Constructors in JavaScript objects
..., the classes correctly interact with each other (they share the static id from MyClass, the announce method uses the correct get_name method, etc.)
One thing to note is the need to shadow instance properties. You can actually make the inherit function go through all instance properties (using hasO...
What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
...ue database where any possible internal
structure of such values is opaque from a DBMS perspective.
In the key-value model, access to multiple database entries (key-value pairs, in this case)
requires separate requests. In the document model, on the other hand, multiple database
entries (documents,...
How to Set Focus on Input Field using JQuery
...appens to be in a bootstrap modal dialog, the answer is different. Copying from How to Set focus to first text input in a bootstrap modal after shown this is what is required:
$('#myModal').on('shown.bs.modal', function () {
$('#textareaID').focus();
})
...
Set Viewbag before Redirect
... if (ModelState.IsValid)
{
int pid = Session.GetDataFromSession<int>("ssnPersonnelID");
PersonnelMaster PM = db.PersonnelMasters.SingleOrDefault(x => x.PersonnelID == pid);
PM.Password = obj.NewPassword;
PM.Mdate = DateTime.Now;
...
How to loop over files in directory and change path and add suffix to filename
...asename somepath .txt outputs the base part of somepath, with .txt removed from the end (e.g. /Data/file.txt -> file)
If you needed to run MyProgram with Data/file.txt instead of /Data/file.txt, use "${filename#/}" to remove the leading slash. On the other hand, if it's really Data not /Data yo...
How to sort a list of strings?
...king language-specific rules into account (cmp_to_key is a helper function from functools):
sorted(mylist, key=cmp_to_key(locale.strcoll))
And finally, if you need, you can specify a custom locale for sorting:
import locale
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') # vary depending on your ...
When correctly use Task.Run and when just async-await
...se TaskCompletionSource<T> or one of its shorthand notations such as FromAsync. I have a blog post that goes into more detail why async methods don't require threads.
– Stephen Cleary
Nov 14 '15 at 21:08
...
How to add property to a class dynamically?
...ith a namedtuple, since you know the entire list of fields ahead of time.
from collections import namedtuple
Foo = namedtuple('Foo', ['bar', 'quux'])
foo = Foo(bar=13, quux=74)
print foo.bar, foo.quux
foo2 = Foo() # error
If you absolutely need to write your own setter, you'll have to do the ...
Is it OK to use Gson instance as a static field in a model bean (reuse)?
... Google Volley and when we parse JSON data concurrent we see this problem. From what I can see this is related to the fact that we define a timestamp for parsing datetime values.
– slott
Oct 30 '13 at 13:15
...