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How do I properly clean up Excel interop objects?
...l holding references to COM objects.
I guess you're invoking at least one member of a COM object without assigning it to a variable.
For me it was the excelApp.Worksheets object which I directly used without assigning it to a variable:
Worksheet sheet = excelApp.Worksheets.Open(...);
...
Marshal....
What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
...ormally straightfoward... until you need 2-way data binding (i.e., form elements, ng-model) in the child scope. Ng-repeat, ng-switch, and ng-include can trip you up if you try to bind to a primitive (e.g., number, string, boolean) in the parent scope from inside the child scope. It doesn't work th...
Calling parent class __init__ with multiple inheritance, what's the right way?
...tiple inheritance, you can use composition for complete control over which methods get called on which occasions.
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Multi-gradient shapes
..._content"
android:layout_height="wrap_content"
android:text="Press Me!"
/>
You'd then put something like this in your onCreate() method:
Button theButton = (Button)findViewById(R.id.thebutton);
ShapeDrawable.ShaderFactory sf = new ShapeDrawable.ShaderFactory() {
@Override
p...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
Why do Scala and frameworks like Spark and Scalding have both reduce and foldLeft ? So then what's the difference between reduce and fold ?
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What does f+++++++++ mean in rsync logs?
...s:
1 - A huge advantage of rsync is that after an interruption the next time it continues smoothly.
The next rsync invocation will not transfer the files again, that it had already transferred, if they were not changed in the meantime. But it will start checking all the files again from the beginn...
Why is the gets function so dangerous that it should not be used?
... standard, but
it was officially removed by the 2011 standard. Most C implementations still support it, but at least gcc issues a warning for any code that uses it.
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boost::flat_map and its performance compared to map and unordered_map
It is common knowledge in programming that memory locality improves performance a lot due to cache hits. I recently found out about boost::flat_map which is a vector based implementation of a map. It doesn't seem to be nearly as popular as your typical map / unordered_map so I haven't been able ...
ReactJS: Modeling Bi-Directional Infinite Scrolling
... big, you can instead pass a function that takes a range and return the elements.
<List>
{thousandelements.map(function() { return <Element /> })}
</List>
Your List component is keeping track of what the scroll position is and only renders the children that are in view. It add...
Pointers vs. values in parameters and return values
...
tl;dr:
Methods using receiver pointers are common; the rule of thumb for receivers is, "If in doubt, use a pointer."
Slices, maps, channels, strings, function values, and interface values are implemented with pointers internally, an...