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What is PostgreSQL explain telling me exactly?
...efore it starts writing rows: a sequential scan reads the first row of the table and emits it. The LIMIT reads its first row and then emits it.
When would a component need to do a lot of processing before it can start to output any rows? There are a lot of possible reasons, but let's look at one cl...
How to specify font attributes for all elements on an html web page?
...nces are it will revert to the browser defaults for certain elements, like tables. You can counter that with something like the following CSS:
html, body, form, fieldset, table, tr, td, img {
margin: 0;
padding: 0;
font: 100%/150% calibri,helvetica,sans-serif;
}
input, button, select, ...
Changing CSS Values with Javascript
...d'
var value = rule.value; //both selectorText and value are settable.
Let me know how this works for ya, and please comment if you see any errors.
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Confusion between factor levels and factor labels
... name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
...
Detect Windows version in .net
...nment is running in, check out this library.
Important note: if your executable assembly manifest doesn't explicitly state that your exe assembly is compatible with Windows 8.1 and Windows 10.0, System.Environment.OSVersion will return Windows 8 version, which is 6.2, instead of 6.3 and 10.0! Sourc...
Vertically align an image inside a div with responsive height
...
Try this one
.responsive-container{
display:table;
}
.img-container{
display:table-cell;
vertical-align: middle;
}
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Why do you have to link the math library in C?
... in libc.so (or libc.a for static linking), which is linked into your executable by default (as if -lc were specified). GCC can be instructed to avoid this automatic link with the -nostdlib or -nodefaultlibs options.
The math functions in math.h have implementations in libm.so (or libm.a for stati...
How are the points in CSS specificity calculated
...
I am fond of comparison of Specificity ranking to Olympic Games medal table (gold first method — based first on the number of gold medals, then silver and then bronze).
It works also with your question (huge number of selectors in one specificity group). Specificity considered each group sep...
Pandas percentage of total with groupby
...
What's going on here? As I understand it, x is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...).
– dhardy
Feb 6 '15 at 9:42
...
Understanding the difference between Object.create() and new SomeFunction()
...ng to be natively implemented on latest browsers, check this compatibility table.
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