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What does the CSS rule “clear: both” do?
...ter { /* Imaginary class name */
content: "";
clear: both;
display: table;
}
Note the :after pseudo element used by me for that class. That will create a virtual element for the wrapper element just before it closes itself. If we look in the dom you can see how it shows up in the Document t...
What does O(log n) mean exactly?
...gorithm performance. Some grown faster as the input n grows. The following table demonstrates said growth numerically. In the table below think of log(n) as the ceiling of log_2.
Simple Code Examples Of Various Big O Categories:
O(1) - Constant Time Examples:
Algorithm 1:
Algorithm 1 prints...
How line ending conversions work with git core.autocrlf between different operating systems
...s modes and their combinations.
Here is what I got, in a slightly modified table:
| Resulting conversion when | Resulting conversion when
| committing files with various | checking out FROM repo -
| EOLs INTO repo and | with...
Does Java casting introduce overhead? Why?
... nice and fast :) For interfaces I would assume no worse than a small hashtable or btree ?
– peterk
Jan 12 '12 at 19:34
...
How to read a .xlsx file using the pandas Library in iPython?
... file using the Pandas Library of python and port the data to a postgreSQL table.
6 Answers
...
What does “S3 methods” mean in R?
...
method calls look like canvas$drawRect("blue"). RC objects are also
mutable: they don’t use R’s usual copy-on-modify semantics, but are
modified in place. This makes them harder to reason about, but allows
them to solve problems that are difficult to solve with S3 or S4.
There...
Valid values for android:fontFamily and what they map to?
...erif"
android:textStyle="bold" />
to the desired values from this table:
Font | android:fontFamily | android:textStyle
-------------------------|-----------------------------|-------------------
Roboto Thin | sans-serif-thin |
Roboto Li...
SPAN vs DIV (inline-block)
...strong and em, can only contain other phrasing elements: you can’t put a table inside a cite for instance. Most flow content such as div and li can contain all types of flow content (as well as phrasing content), but there are a few exceptions: p, pre, and th are examples of non-phrasing flow cont...
How to avoid isset() and empty()
...hat may or may not be set by a controller, you'll just have to check:
<table>
<?php if (!empty($foo) && is_array($foo)) : ?>
<?php foreach ($foo as $bar) : ?>
<tr>...</tr>
<?php endforeach; ?>
<?php else : ?>
...
Explain the use of a bit vector for determining if all characters are unique
...of both operands to left and right of it.
So what we have here is a hash table which is being stored in a 32 bit binary number every time the checker gets or'd ( checker |= (1 << val)) with the designated binary value of a letter its corresponding bit it is being set to true.
The character's...