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From inside of a Docker container, how do I connect to the localhost of the machine?
...Here my container has the IP address 172.17.1.192. Now look at the routing table:
root@e77f6a1b3740:/# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 172.17.42.1 0.0.0.0 UG 0 0 0 eth0
172.17.0.0 ...
Build an ASCII chart of the most commonly used words in a given text [closed]
... C:\WINDOWS\system32\A */
/*Recursive common table expression to
generate a table of numbers from 1 to string length
(and associated characters)*/
WITH N AS
(SELECT 1 i,
LEFT(@,1)L
UNION ALL
SELECT i+1,
SUBSTRING(@,i+1,1)
F...
What's the best way to get the last element of an array without deleting it?
...ning: count(): Parameter must be an array or an object that implements Countable in Command line code on line 1
W8 = Warning: array_key_last() expects parameter 1 to be array, null given in Command line code on line 1
N1 = Notice: Undefined offset: 0 in Command line code on line 1
N2 = Notice: Only ...
How to find out client ID of component for ajax update/render? Cannot find component with expression
The following code is inspired from PrimeFaces DataGrid + DataTable Tutorials and put into a <p:tab> of a <p:tabView> residing in a <p:layoutUnit> of a <p:layout> . Here is the inner part of the code (starting from p:tab component); the outer part is trivial.
...
SHA1 vs md5 vs SHA256: which to use for a PHP login?
...g without key stretching only means that you cannot precompute the rainbow table, you need to build it ad hoc for that specific salt. But it won't really make things that much harder.
User @Will says:
Everyone is talking about this like they can be hacked over the
internet. As already stated,...
How to style a checkbox using CSS
...leapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table style="width:100%">
<tr>
<td>Normal:</td>
<td><input type="checkbox" /></td>
<td><input type="checkbox" checked="checked" /></td>
<td>...
Does PostgreSQL support “accent insensitive” collations?
...t's possible to specify an "accent insensitive" collation (for a database, table or column), which means that it's possible for a query like
...
Difference between Big-O and Little-O Notation
...r 1 is:
≤ 2, < 2, and ≤ 1
not ≤ 0, < 0, or < 1
Here's a table, showing the general idea:
(Note: the table is a good guide but its limit definition should be in terms of the superior limit instead of the normal limit. For example, 3 + (n mod 2) oscillates between 3 and 4 foreve...
Filter rows which contain a certain string
...
head
#> # A tibble: 6 x 10
#> carat cut color clarity depth table price x y z
#> <dbl> <ord> <ord> <ord> <dbl> <dbl> <int> <dbl> <dbl> <dbl>
#> 1 0.23 Ideal E SI2 61.5 55 326 3.95 3....
What is RSS and VSZ in Linux memory management
...g work? and in particular that the OS can allocate virtual memory via page tables / its internal memory book keeping (VSZ virtual memory) before it actually has a backing storage on RAM or disk (RSS resident memory).
Now to observe this in action, let's create a program that:
allocates more RAM t...