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What is the difference between an interface and abstract class?
...hat you think they are.
In Java, this rule is strongly enforced, while in PHP, interfaces are abstract classes with no method declared.
In Python, abstract classes are more a programming trick you can get from the ABC module and is actually using metaclasses, and therefore classes. And interfaces ...
What is the purpose of a stack? Why do we need it?
...erts on the semantic analysis of their language, not on efficient register allocation of new chip sets.
Now suppose we do it the CIL way. How many CIL generators do you have to write? One per language. How many JIT compilers do you have to write? One per processor. Total: 20 + 10 = 30 code generato...
jQuery AJAX submit form
...Query serialize function.
AjaxForm:
$("#theForm").ajaxForm({url: 'server.php', type: 'post'})
or
$("#theForm").ajaxSubmit({url: 'server.php', type: 'post'})
ajaxForm will send when the submit button is pressed. ajaxSubmit sends immediately.
Serialize:
$.get('server.php?' + $('#theForm').ser...
Convert object to JSON in Android
.../JsonReader.html
Reads a JSON (RFC 4627) encoded value as a stream of tokens. This
stream includes both literal values (strings, numbers, booleans, and
nulls) as well as the begin and end delimiters of objects and arrays.
The tokens are traversed in depth-first order, the same order that
...
Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
... check that a variable we were using as a number, was actually numeric. In PHP you should widely use a set of functions to check that inputs are integers, floats, alphanumeric etc. But when it comes to SQL, heed most the value of the prepared statement. The above code would have been secure if it ...
Is gcc 4.8 or earlier buggy about regular expressions?
...x_match.
Here is an approach that works like regex_match but using sregex_token_iterator instead. And it works with g++.
string line="1a2b3c";
std::regex re("(\\d)");
std::vector<std::string> inVector{
std::sregex_token_iterator(line.begin(), line.end(), re, 1), {}
};
//prints all match...
When to use -retainCount?
...meaningless.
If you're trying to track down why an object isn't getting deallocated, use the Leaks tool in Instruments. If you're trying to track down why an object was deallocated too soon, use the Zombies tool in Instruments.
But don't use -retainCount. It's a truly worthless method.
edit
Pl...
What are the best PHP input sanitizing functions?
...
Stop!
You're making a mistake here. Oh, no, you've picked the right PHP functions to make your data a bit safer. That's fine. Your mistake is in the order of operations, and how and where to use these functions.
It's important to understand the difference between sanitizing and validating u...
Ruby: How to post a file via HTTP as multipart/form-data?
...eaders so rest client won't work in that case. For example JIRA requires a token X-Atlassian-Token.
– onknows
Sep 9 '13 at 14:17
...
Removing an element from an Array (Java) [duplicate]
...inkedList. Iteration should be just as fast, and you avoid any resizes, or allocating too big of a list if you end up deleting lots of elements. You could use an ArrayList, and set the initial size to the length of input. It likely wouldn't make much of a difference.
...