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Detect IF hovering over element with jQuery
... looking for an action to call when hovering, but instead a way to tell if an element is being hovered over currently. For instance:
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Returning null as an int permitted with ternary operator but not if statement
... rules for the conditional operator (as described in the Java Language Specification, 15.25), and moves happily on. This will generate a NullPointerException at run time, which you can confirm by trying it.
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Check if all values of array are equal
... might be a bit late to the party... i think this doesn't work if your array is made of falses! for example try [false, false, false].reduce(function(a, b){return (a === b)?a:false;});
– George Flourentzos
Nov 27 '14 at 19:21
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JavaScript: remove event listener
...t.
var click_count = 0;
function myClick(event) {
click_count++;
if(click_count == 50) {
// to remove
canvas.removeEventListener('click', myClick);
}
}
// to add
canvas.addEventListener('click', myClick);
EDIT: You could close around the click_counter variable like t...
When to use .First and when to use .FirstOrDefault with LINQ?
...the check. (It is bad practice and might hurt performance).
Finally, the difference between First() and Take(1) is that First() returns the element itself, while Take(1) returns a sequence of elements that contains exactly one element.
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How to break out of jQuery each Loop
...to a continue in a normal loop.
$.each(array, function(key, value) {
if(value === "foo") {
return false; // breaks
}
});
// or
$(selector).each(function() {
if (condition) {
return false;
}
});
s...
Authorative way to override onMeasure()?
...w is allowed to do. Currently there are three values:
MeasureSpec.UNSPECIFIED - You can be as big as you'd like
MeasureSpec.AT_MOST - As big as you want (up to the spec size), This is parentWidth in your example.
MeasureSpec.EXACTLY - No choice. Parent has chosen.
This is done so that Android ...
How to display a confirmation dialog when clicking an link?
...ntsByClassName('confirmation');
var confirmIt = function (e) {
if (!confirm('Are you sure?')) e.preventDefault();
};
for (var i = 0, l = elems.length; i < l; i++) {
elems[i].addEventListener('click', confirmIt, false);
}
</script>
This example will only wor...
Set android shape color programmatically
...e background = imageView.getBackground();
Check against usual suspects:
if (background instanceof ShapeDrawable) {
// cast to 'ShapeDrawable'
ShapeDrawable shapeDrawable = (ShapeDrawable) background;
shapeDrawable.getPaint().setColor(ContextCompat.getColor(mContext,R.color.colorToSet)...
Pythonic way of checking if a condition holds for any element of a list
I have a list in Python, and I want to check if any elements are negative. Specman has the has() method for lists which does:
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