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What is the use of “assert” in Python?
...s has been pointed out above, in Python 3, assert is still a statement, so by analogy with print(..), one may extrapolate the same to assert(..) or raise(..) but you shouldn't.
This is important because:
assert(2 + 2 == 5, "Houston we've got a problem")
won't work, unlike
assert 2 + 2 == 5, "Ho...
Is there any way to see the file system on the iOS simulator?
...Applications, choose the Finder option that shows date for files, and sort by date. Your application will be the most recent since it just changed the directory...
Inside the directory is everything related to your application. You can even drop files in there between runs, to revert back to a st...
How to set custom header in Volley Request
...ing url = "http://i.imgur.com/7spzG.png";
mImageView = (ImageView) findViewById(R.id.myImage);
...
// Retrieves an image specified by the URL, displays it in the UI.
mRequestQueue = Volley.newRequestQueue(context);;
ImageRequest request = new ImageRequest(url,
new Response.Listener() {
@Ove...
lexers vs parsers
.... But it
has to be of symbols which are atomic for the language
understood by parser/lexer.
Symbols for the lexer: ASCII characters.
Symbols for the parser: the particular tokens, which are terminal symbols of their grammar.
They analyse these symbols and try to match them with the grammar of the l...
Get selected value in dropdown list using JavaScript
...
If you have a select element that looks like this:
<select id="ddlViewBy">
<option value="1">test1</option>
<option value="2" selected="selected">test2</option>
<option value="3">test3</option>
</select>
Running this code:
var e =...
Example of Named Pipes
...ner if you deploy to Linux
This NamedPipe Client/Server code round trips a byte to a server.
Client writes byte
Server reads byte
Server writes byte
Client reads byte
DotNet Core 2.0 Server ConsoleApp
using System;
using System.IO.Pipes;
using System.Threading.Tasks;
namespace Server
{
class ...
COALESCE Function in TSQL
...the documentation is vague.
It simply goes through all the parameters one by one, and returns the first that is NOT NULL.
COALESCE(NULL, NULL, NULL, 1, 2, 3)
=> 1
COALESCE(1, 2, 3, 4, 5, NULL)
=> 1
COALESCE(NULL, NULL, NULL, 3, 2, NULL)
=> 3
COALESCE(6, 5, 4, 3, 2, NULL)
=> 6
C...
click() event is calling twice in jquery
...
Thank you, it's work... by the way after reading understand it prevent any parent handlers from being executed
– Nandlal Ushir
Nov 21 '19 at 10:36
...
What is the difference between the different methods of putting JavaScript code in an ?
..."myLink">Link</a>
With the JavaScript code:
document.getElementById('myLink').onclick = function() {
// Do stuff.
};
I can't comment on which of the options has the best support or which is semantically the best, but I'll just say that I much prefer this style because it separates ...
Difference between jQTouch and jQuery mobile
...Query project (alpha 4.1 - April 7, 2011) whereas jQTouch, created in 2009 by David Kaneda, has been relatively quiet until release of beta 3 (May 3, 2011)
jQTouch is a jQuery plugin (see "Staying on jQuery" section) while jQuery mobile is presented as a framework
jQTouch is focused on small screen ...