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Single vs double quotes in JSON
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JSON syntax is not Python syntax. JSON requires double quotes for its strings.
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How to trigger a file download when clicking an HTML button or JavaScript
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Best and most clean solution. But you do not need any extra Javascript here. HTML part with the onclick is enough.
– Florian Leitgeb
Jan 23 '15 at 13:06
4
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Should Javadoc comments be added to the implementation?
...m during my PhD and found that in general folks will never be aware of the extra information in the overriding version if they are invoking through a supertype.
Addressing this problem was one of the major feature of the prototype tool that I built - Whenever you invoked a method, you got an indic...
Calendar Recurring/Repeating Events - Best Storage Method
...e | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+--------+---------------+---------+---------+------------------+------+--------------------------------+
| 1 | SIMPLE | EM1 | ALL | NULL | NULL ...
ExecutorService that interrupts tasks after a timeout
...lem with the following (very crude) test program:
public static void main(String[] args) throws InterruptedException {
ExecutorService service = new TimeoutThreadPoolExecutor(1, 1, 10, TimeUnit.SECONDS,
new LinkedBlockingQueue<Runnable>(), 10, TimeUnit.MINUTES);
//Executo...
Regex lookahead for 'not followed by' in grep
... you can use negated character classes [^L], alternation |, and the end of string anchor $.
In your case grep 'Ui\.\([^L]\|$\)' * does the job.
Ui\. matches the string you're interested in
\([^L]\|$\) matches any single character other than L or it matches the end of the line: [^L] or $.
If you...
What is ViewModel in MVC?
...c class Employee : IEntity
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public DateTime DateCreated { get; set; }
}
View models differ from domain models in that view models only contain the data (represented by pro...
Is there a minlength validation attribute in HTML5?
...from constraint validation.
<input pattern=".{3,}" required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">
If you want to create the option to use the pattern for "empty, or minimum length", you could do the following:
<input pattern=...
How to define custom exception class in Java, the easiest way?
...'t "inherit" non-default constructors, you need to define the one taking a String in your class. Typically you use super(message) in your constructor to invoke your parent constructor. For example, like this:
public class MyException extends Exception {
public MyException(String message) {
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Is there a way to pass optional parameters to a function?
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2 extra lines to give better introspection is worth it. With this if you run help(func) you get a clearer idea how the argument is interpreted if not passed explicitly.
– Tadhg McDonald-Jensen
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