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What is the difference between syntax and semantics in programming languages?
...ntax is about the structure or the grammar of the language. It answers the question: how do I construct a valid sentence? All languages, even English and other human (aka "natural") languages have grammars, that is, rules that define whether or not the sentence is properly constructed.
Here are som...
AWS MySQL RDS vs AWS DynamoDB [closed]
...ed the flexibility to query the data in a number of different ways (adding indexes as necessary of course), then RDS might be a better solution.
The main benefit for using DynamoDB as a NoSQL store is that you get guaranteed read/write throughput at whatever level you require without having to worr...
Catch Ctrl-C in C
... printf("OUCH, did you hit Ctrl-C?\n"
"Do you really want to quit? [y/n] ");
c = getchar();
if (c == 'y' || c == 'Y')
exit(0);
else
signal(SIGINT, INThandler);
getchar(); // Get new line character
}
...
How can I find the last element in a List?
...... making it a very poor solution if the IList is a LinkedList, since the indexer will just go through the entire list needlessly (I haven't found an override iterating backwards on Item[] with index > Count/2 in the c# sources, YMMV)
– user719662
Jan 2 '16...
How to change the pop-up position of the jQuery DatePicker control
... This may work to set margins, but fails for "left", "top", "z-index", and "position" attributes.
– aaronbauman
Mar 18 '14 at 21:58
...
Auto detect mobile browser (via user-agent?) [closed]
... (.*) mobile/$1
which would move, for example, requests to http://domain/index.html to http://domain/mobile/index.html
If you don't like the approach of having a script recreate a htaccess file periodically, you can write a module which checks the User Agent (I didn't find one already made, but ...
string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
... value)
{
if (value == null)
return true;
for (int index = 0; index < value.Length; ++index)
{
if (!char.IsWhiteSpace(value[index]))
return false;
}
return true;
}
...
Creating a Radial Menu in CSS
...
text-shadow: 0 1px 1px #6c6f7e;
cursor: pointer;
}
label {
z-index: 2; // place it above the menu which has z-index: 1
margin: -$d/2; // position correction such that it's right in the middle
width: $d; height: $d;
border-radius: 50%;
box-shadow: 0 0 1px 1px white,
...
Why doesn't indexOf work on an array IE8?
...n Opera, Firefox and Chrome. However, in IE8 it fails on the if ( allowed.indexOf(ext[1]) == -1) part.
7 Answers
...
pycharm running way slow
...re (Click on the icon at the bottom right, next to the lock):
2. Change indexed directories
Exclude directories from being indexed which are set in the project paths but not actually required to be searched and indexed. Press ALT+CTRL+S and search for project.
3. Do memory sweeps
There is anoth...