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Explicitly calling a default method in Java
...ements A, C {
@Override
public void foo() {
//you could completely override the default implementations
doSomethingElse();
//or manage conflicts between the same method foo() in both A and C
A.super.foo();
}
public void bah() {
A.super.foo(); //...
How to remove the hash from window.location (URL) with JavaScript without page refresh?
I have URL like: http://example.com#something , how do I remove #something , without causing the page to refresh?
16 An...
What is the difference between async.waterfall and async.series
The nodejs async module: https://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series .
...
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...ed column, mysql, group by was about 6x slower than distinct with a fairly complicated query. Just adding this as a datapoint. About 100k rows. So test it and see for yourselves.
– Lizardx
Feb 21 '16 at 22:32
...
What is the difference between the add and offer methods in a Queue in Java?
Take the PriorityQueue for example http://java.sun.com/j2se/1.5.0/docs/api/java/util/PriorityQueue.html#offer(E)
8 Answe...
Is either GET or POST more secure than the other?
When comparing an HTTP GET to an HTTP POST, what are the differences from a security perspective? Is one of the choices inherently more secure than the other? If so, why?
...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
...
@Andy It's called splat. It usually has the effect of decomposing an array into comma separated objects. When used in the argument receiving position of a method definition, it does the other way: put the arguments together into an array. It's quite useful in various occasions. Go...
What can I do with a moved-from object?
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Check if array is empty or null
...nce into a local variable and then use it from that local variable.
It's recommended to initialize arrays with [] rather than new Array().
if (value) when value is expected to be a string will both protect from value == null, value == undefined and value == "" so you don't have to do if (value &...
Add a number to each selection in Sublime Text 2, incremented once per selection
...
I recommend the plugin Text Pastry. The Number Sequence command is the one you need.
I prefer to use the Insert Nums command:
Text Pastry has a build in support for the Insert Nums syntax by
providing three numbers separat...