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Is it safe to delete a void pointer?
...ll T,U suggests that it should be possible to have 1 non templated, void * based garbage collector implementation. But then, when the gc actually has to delete/free a pointer exactly this question arises. To make it work, you either need lambda function destructor wrappers (urgh) or you would need s...
Switch statement fallthrough in C#?
...evs reading the code after the fact could learn about the feature from the base concept of goto
– Alex Lyman
Oct 14 '11 at 19:43
...
Is it a good idea to index datetime field in mysql?
I am working on designing a large database. In my application I will have many rows for example I currently have one table with 4 million records. Most of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
...
ActiveRecord: List columns in table from console
...ething like Model.columns to get more info about the columns including database config data.
– srt32
Apr 21 '14 at 18:18
...
Render partial from different folder (not shared)
... public NewViewEngine() {
// Keep existing locations in sync
base.PartialViewLocationFormats = base.PartialViewLocationFormats.Union(NEW_PARTIAL_VIEW_FORMATS).ToArray();
}
}
Then in your Global.asax.cs file, add the following line:
ViewEngines.Engines.Add(new NewViewEngine());
...
Remove 'a' from legend when using aesthetics and geom_text
...1:8),]
p <- ggplot(d, aes(wt, mpg)) +
geom_point() +
theme_classic(base_size = 18) +
geom_label_repel(
aes(label = rownames(d), fill = factor(cyl)),
size = 5, color = "white"
)
# Let's see what the default legend looks like.
p
# Now let's override some of the aesthetics:
p +...
When and why are database joins expensive?
I'm doing some research into databases and I'm looking at some limitations of relational DBs.
7 Answers
...
Why is super.super.method(); not allowed in Java?
...hin the same method) but not your parent's. For example, suppose we have a base "collection of items", a subclass representing "a collection of red items" and a subclass of that representing "a collection of big red items". It makes sense to have:
public class Items
{
public void add(Item item)...
Responsive css background images
...
If you want the same image to scale based on the size of the browser window:
background-image:url('../images/bg.png');
background-repeat:no-repeat;
background-size:contain;
background-position:center;
Do not set width, height, or margins.
EDIT:
The previous...
How to add text inside the doughnut chart using Chart.js?
...
None of the other answers resize the text based off the amount of text and the size of the doughnut. Here is a small script you can use to dynamically place any amount of text in the middle, and it will automatically resize it.
Example: http://jsfiddle.net/kdvuxbtj...