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What is the difference between `let` and `var` in swift?
...erence comes when using it with class instances (reference types):
class CTest
{
var str : String = ""
}
let letTest = CTest()
letTest.str = "test" // OK
letTest.str = "another test" // Still OK
//letTest = CTest() // Error
var varTest1 = CTest()
var varTest2 = CTest()
var varTest3 = CTest(...
Dealing with “Xerces hell” in Java/Maven?
...Do they go with the same version of Xerces or use something else?
Actually test their parsing (e.g. through unit testing) and classloading as well as not to clutter up their classpath.
Not all developers keep track of newly introduced dependencies (e.g. with mvn dependency:tree). This approach wi...
What are the real-world strengths and weaknesses of the many frameworks based on backbone.js? [close
Hope that someone can share their experience with some of the latest emerging backbone.js variants out there.
I have some good experience with backbone/underscore/require in several projects and I will like to take the next step towards more advanced solutions for complex application structure.
...
Detect a finger swipe through JavaScript on the iPhone and Android
... null;
yDown = null;
};
Tested in Android.
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How to get key names from JSON using jq
curl http://testhost.test.com:8080/application/app/version | jq '.version' | jq '.[]'
7 Answers
...
Does Firefox support position: relative on table elements?
...{
// wrap the insides of the "table cell"
$('#test').wrapInner('<div class="ffpad"></div>');
function ffpad() {
var $ffpad = $('.ffpad'),
$parent = $('.ffpad').parent(),
w, h;
// remove any hei...
Can pandas automatically recognize dates?
...tions of date though. Apologies to pandas developers,here but i have not tested it with local dates recently.
you can use the date_parser parameter to pass a function to convert your format.
date_parser : function
Function to use for converting a sequence of string columns to an array of datetim...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...parated_names FROM things;
--> ERROR: syntax error at or near "ORDER"
Tested on PostgreSQL 8.3.
CREATE FUNCTION string_agg_transfn(text, text, text)
RETURNS text AS
$$
BEGIN
IF $1 IS NULL THEN
RETURN $2;
ELSE
RETURN $1 ||...
What is the meaning of “this” in Java?
...ontext of an object. So if you have a class like this:
public class MyThisTest {
private int a;
public MyThisTest() {
this(42); // calls the other constructor
}
public MyThisTest(int a) {
this.a = a; // assigns the value of the parameter a to the field of the same name
}
publ...
What's the -practical- difference between a Bare and non-Bare repository?
...not have a default remote origin repository:
~/Projects$ git clone --bare test bare
Initialized empty Git repository in /home/derek/Projects/bare/
~/Projects$ cd bare
~/Projects/bare$ git branch -a
* master
~/Projects/bare$ cd ..
~/Projects$ git clone test non-bare
Initialized empty Git repository ...