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Check if element is visible in DOM
...nd get the visibility state of the element.
HTML :
<div id="myDiv">Hello</div>
CSS :
<!-- for javaScript-->
#myDiv{
position:absolute;
left : -2000px;
}
<!-- for jQuery -->
#myDiv{
visibility:hidden;
}
javaScript :
var myStyle = document.getElementById("myD...
What does dot (.) mean in a struct initializer?
... 'fuse_oprations' struct to initialize for the object designated by
the 'hello_oper' identifier.
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Hidden features of Scala
...t rather a pattern. That's why this works:
val (a, b, c) = (1, 3.14159, "Hello, world")
The right hand expression creates a Tuple3[Int, Double, String] which can match the pattern (a, b, c).
Most of the time your patterns use extractors that are members of singleton objects. For example, if yo...
Is it possible to define more than one function per file in MATLAB, and access them from outside tha
...gin{:} );
% paste your subfunctions below ....
function str=subfun1
str='hello'
Then calling subfun1 would look like this:
str=main('subfun1')
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Is there a difference between single and double quotes in Java?
...rs, double quotes for literal Strings, like so:
char c = 'a';
String s = "hello";
They cannot be used any other way around (like in Python, for example).
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How do I append one string to another in Python?
...
str1 = "Hello"
str2 = "World"
newstr = " ".join((str1, str2))
That joins str1 and str2 with a space as separators. You can also do "".join(str1, str2, ...). str.join() takes an iterable, so you'd have to put the strings in a list o...
Pair/tuple data type in Go
...ace{}
}
func main() {
p1 := Pair{"finished", 42}
p2 := Pair{6.1, "hello"}
fmt.Println("p1=", p1, "p2=", p2)
fmt.Println("p1.b", p1.b)
// But to use the values you'll need a type assertion
s := p1.a.(string) + " now"
fmt.Println("p1.a", s)
}
However I think what you hav...
browser sessionStorage. share between tabs?
... if (sessionCount == null || sessionCount == 0) {
out.println("hello Title");
sessionCount = new Integer(0);
}
sessionCount++;
}
request.getSession().setAttribute("sessionCount", sessionCount);
// Set standard HTTP/1.1 no-cache he...
Java multiline string
...
<html>
<head/>
<body>
<p>
Hello<br/>
Multiline<br/>
World<br/>
</p>
</body>
</html>
*/
@Multiline
private static String html;
public static void main(final String[] args) {
S...
Python memory usage of numpy arrays
...
Hello @Moot, thanks for the comment. The question is about how to get the size in bytes of an array. While is true that my snippet first creates an array, it is only for the purpose of having a complete example that can be ex...