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What is a Context Free Grammar?
...eory is related to Theory of Computation. Which is the more philosophical side of Computer Science, about deciding which programs are possible, or which will ever be possible to write, and what type of problems is it impossible to write an algorithm to solve.
A regular expression is a way of descri...
Constructor overloading in Java - best practice
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While there are no "official guidelines" I follow the principle of KISS and DRY. Make the overloaded constructors as simple as possible, and the simplest way is that they only call this(...). That way you only need to check and handle the parameters once a...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
...he existing DB architecture is simple? Could the cumbersome workflow be avoided by migrating the data in the legacy DB to a new DB, and if so would this be hard to do? Thanks.
– Daniel
Apr 8 '15 at 4:41
...
Are lists thread-safe?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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What characters are valid for JavaScript variable names?
...
To quote Valid JavaScript variable names, my write-up summarizing the relevant spec sections:
An identifier must start with $, _, or any character in the Unicode categories “Uppercase letter (Lu)”, “Lowercase letter (Ll)”, ...
In Matlab, when is it optimal to use bsxfun?
...n of the other array. This is what is called "singleton expasion". As an aside, the singleton dimensions are the ones that will be dropped if you call squeeze.
It is possible that for very small problems, the repmat approach is faster - but at that array size, both operations are so fast that it li...
Understanding the transclude option of directive definition?
...
Consider a directive called myDirective in an element, and that element is enclosing some other content, let's say:
<div my-directive>
<button>some button</button>
<a href="#">and a link</a>...
Do I encode ampersands in ?
...
Yes, it is. HTML entities are parsed inside HTML attributes, and a stray & would create an ambiguity. That's why you should always write &amp; instead of just & inside all HTML attributes.
That said, only & and quotes need to be encoded. If you hav...
URL matrix parameters vs. query parameters
...geable, however, query parameters are generally better supported and more widely recognized. In general, I would recommend that you stick with query parameters for things like HTML forms and simple, single-level HTTP APIs.
...
How to gracefully handle the SIGKILL signal in Java
...ignal. The program should handle the signal by doing a controlled, but rapid, shutdown. When a computer shuts down, the final stage of the shutdown process sends every remaining process a SIGTERM, gives those processes a few seconds grace, then sends them a SIGKILL.
The way to handle this for anyt...