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Difference between volatile and synchronized in Java
... am wondering at the difference between declaring a variable as volatile and always accessing the variable in a synchronized(this) block in Java?
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change type of input field with jQuery
...with id="password" ) that is of type password to a normal text field, and then fill in the text “Password”.
29 Ans...
JS: Check if date is less than 1 hour ago?
...
return moment(date).isAfter(moment().subtract(1, 'hours'));
}
Shorthand syntax with Moment:
const lessThanOneHourAgo = (date) => moment(date).isAfter(moment().subtract(1, 'hours'));
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Get Mouse Position
...useInfo.getPointerInfo().getLocation(), component)
– Andrei Vajna II
Aug 29 '14 at 10:48
1
Note M...
Drawing a line/path on Google Maps
... mPaint.setColor(Color.RED);
mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(2);
GeoPoint gP1 = new GeoPoint(19240000,-99120000);
GeoPoint gP2 = new...
Why does the is operator return false when given null?
...e) type
One would be implicitly assuming that a type is a set of values, and that assignment compatibility of a value y with a variable of type X is nothing more nor less than checking whether y is a member of set x.
Though that is an extremely common way of looking at types, that is not the onl...
How to check type of variable in Java?
...pe).
The examples you gave (int, array, double) these are all primitives, and there are no sub-types of them. Thus, if you declare a variable to be an int:
int x;
You can be sure it will only ever hold int values.
If you declared a variable to be a List, however, it is possible that the variab...
Find mouse position relative to element
..., one of them with the event attached to it, it can be confusing to understand what your browser sees as the parent. Here, you can specify which parent.
You take the mouse position, and then subtract it from the parent element's offset position.
var x = evt.pageX - $('#element').offset().left;
var y...
What's the best way to make a d3.js visualisation layout responsive?
...svg graphic. How do I make this responsive so on resize the graphic widths and heights are dynamic?
12 Answers
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What's the best way to inverse sort in scala?
...e by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the ordering you want to reverse is the implicit ordering, you can get it by implicitly[Ordering[A]] (A the type you'r...