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Getter and Setter?
...y is of a specific type without using setters.
In PHP, this works:
class Foo {
public $bar; // should be an integer
}
$foo = new Foo;
$foo->bar = "string";
In Java, it doesn't:
class Foo {
public int bar;
}
Foo myFoo = new Foo();
myFoo.bar = "string"; // error
Using magic methods (__...
How to check if element has any children in Javascript?
...log(
isEmpty("#one"), // false
isEmpty("#two"), // true
isEmpty(".foo"), // false
isEmpty(".bar") // true
);
<div id="one">
foo
</div>
<div id="two">
</div>
<div class="foo"></div>
<div class="foo"><p>foo</p></div&...
Check if object exists in JavaScript
...null !== undefined gives you what you might expect. Please also note, that foo != null can be an effective way to check if a variable is neither undefined nor null. Of course you can be explicit, because it may help readability.
If you restrict the question to check if an object exists, typeof o ==...
Understanding events and event handlers in C#
... return void and take a string.
public delegate void MyEventHandler(string foo);
//This event can cause any method which conforms
//to MyEventHandler to be called.
public event MyEventHandler SomethingHappened;
//Here is some code I want to be executed
//when SomethingHappened fires.
void HandleSo...
CSS selector for “foo that contains bar”? [duplicate]
Is there a way to make a CSS Selector that matches the following?
3 Answers
3
...
count (non-blank) lines-of-code in bash
...
cat foo.c | sed '/^\s*$/d' | wc -l
And if you consider comments blank lines:
cat foo.pl | sed '/^\s*#/d;/^\s*$/d' | wc -l
Although, that's language dependent.
...
Turn off constraints temporarily (MS SQL)
...e FK and CHECK constraints only in SQL 2005+. See ALTER TABLE
ALTER TABLE foo NOCHECK CONSTRAINT ALL
or
ALTER TABLE foo NOCHECK CONSTRAINT CK_foo_column
Primary keys and unique constraints can not be disabled, but this should be OK if I've understood you correctly.
...
HTML5 Local Storage fallback solutions [closed]
...ttp://jsfiddle.net/aamir/S4X35/
HTML:
<a href='#' onclick="store.set('foo','bar')">set key: foo, with value: bar</a><br/>
<a href='#' onclick="alert(store.get('foo'))">get key: foo</a><br/>
<a href='#' onclick="store.del('foo')">delete key: foo</a>...
What does the slash mean in help() output?
...hen his proposal won.
Heh. If that's true, my '/' proposal wins:
def foo(pos_only, /, pos_or_kw, *, kw_only): ...
I think the very relevant document covering this is PEP 570.
Where recap section looks nice.
Recap
The use case will determine which parameters to use in the function...
How to refer environment variable in POM.xml?
...lt value for my.variable can be defined here -->
<my.variable>foo</my.variable>
...
</properties>
...
<!-- Use my.variable -->
... ${my.variable} ...
Set the property value on the maven command line:
mvn clean package -Dmy.variable=$MY_VARIABLE
...