CentOS 7:
I tried solutions in this post
sudo yum -y install libcurl libcurl-devel
sudo yum -y install openssl-devel
but wasn't enough.
Checking R error in Console gave me the anwser. In my case it was lacking libxml-2.0 below (and Console printed an explanation with package name to different Linux versions and other possible R configs)
sudo yum -y install libxml2-devel
I really like the solution proposed by @Brian Diggs. However, in my case, I create the line plots in a loop rather than giving them explicitly because I do not know apriori how many plots I will have. When I tried to adapt the @Brian's code I faced some problems with handling the colors correctly. Turned out I needed to modify the aesthetic functions. In case someone has the same problem, here is the code that worked for me.
I used the same data frame as @Brian:
data <- structure(list(month = structure(c(1317452400, 1317538800, 1317625200, 1317711600,
1317798000, 1317884400, 1317970800, 1318057200,
1318143600, 1318230000, 1318316400, 1318402800,
1318489200, 1318575600, 1318662000, 1318748400,
1318834800, 1318921200, 1319007600, 1319094000),
class = c("POSIXct", "POSIXt"), tzone = ""),
TempMax = c(26.58, 27.78, 27.9, 27.44, 30.9, 30.44, 27.57, 25.71,
25.98, 26.84, 33.58, 30.7, 31.3, 27.18, 26.58, 26.18,
25.19, 24.19, 27.65, 23.92),
TempMed = c(22.88, 22.87, 22.41, 21.63, 22.43, 22.29, 21.89, 20.52,
19.71, 20.73, 23.51, 23.13, 22.95, 21.95, 21.91, 20.72,
20.45, 19.42, 19.97, 19.61),
TempMin = c(19.34, 19.14, 18.34, 17.49, 16.75, 16.75, 16.88, 16.82,
14.82, 16.01, 16.88, 17.55, 16.75, 17.22, 19.01, 16.95,
17.55, 15.21, 14.22, 16.42)),
.Names = c("month", "TempMax", "TempMed", "TempMin"),
row.names = c(NA, 20L), class = "data.frame")
In my case, I generate my.cols
and my.names
dynamically, but I don't want to make things unnecessarily complicated so I give them explicitly here. These three lines make the ordering of the legend and assigning colors easier.
my.cols <- heat.colors(3, alpha=1)
my.names <- c("TempMin", "TempMed", "TempMax")
names(my.cols) <- my.names
And here is the plot:
p <- ggplot(data, aes(x = month))
for (i in 1:3){
p <- p + geom_line(aes_(y = as.name(names(data[i+1])), colour =
colnames(data[i+1])))#as.character(my.names[i])))
}
p + scale_colour_manual("",
breaks = as.character(my.names),
values = my.cols)
p
The problem is with your curl options – the RCurl
package doesn't seem to use internet2.dll
.
You need to specify the port separately, and will probably need to give your user login details as network credentials, e.g.,
opts <- list(
proxy = "999.999.999.999",
proxyusername = "mydomain\\myusername",
proxypassword = "mypassword",
proxyport = 8080
)
getURL("http://stackoverflow.com", .opts = opts)
Remember to escape any backslashes in your password. You may also need to wrap the URL in a call to curlEscape
.
Hey please add code in your project,it is easy and i think will solve your problem.
int count = 10;
private void timer1_Tick(object sender, EventArgs e)
{
count--;
if (count != 0 && count > 0)
{
label1.Text = count / 60 + ":" + ((count % 60) >= 10 ? (count % 60).ToString() : "0" + (count % 60));
}
else
{
label1.Text = "game over";
}
}
private void Form1_Load(object sender, EventArgs e)
{
timer1 = new System.Windows.Forms.Timer();
timer1.Interval = 1;
timer1.Tick += new EventHandler(timer1_Tick);
}
instead of using dataframe.to_json(orient = “records”)
use dataframe.to_json(orient = “index”)
my above code convert the dataframe into json format of dict like {index -> {column -> value}}
Another alternative:
in the parent pom, use:
<properties>
<rootDir>${session.executionRootDirectory}</rootDir>
<properties>
In the children poms, you can reference this variable.
Main caveat: It forces you to always execute command from the main parent pom directory. Then if you want to run commands (test for example) only for some specific module, use this syntax:
mvn test --projects
The configuration of surefire to parametize a "path_to_test_data" variable may then be:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.plugin.version}</version>
<configuration>
<systemPropertyVariables>
<path_to_test_data>${rootDir}/../testdata</path_to_test_data>
</systemPropertyVariables>
</configuration>
</plugin>
If you really know what you do and you don't mind the evil ways, this is the only additional Twig extension you'll ever need:
function evilEvalPhp($eval, $args = null)
{
$result = null;
eval($eval);
return $result;
}
I like this short solution
function split(s, delimiter)
result = {};
for match in (s..delimiter):gmatch("(.-)"..delimiter) do
table.insert(result, match);
end
return result;
end
As you probably learned VBA does not natively support multithreading but. There are 3 methods to achieve multithreading:
I compared all thread approaches here: http://analystcave.com/excel-multithreading-vba-vs-vbscript-vs-c-net/
Considering approach #3 I also made a VBA Multithreading Tool that allows you to easily add multithreading to VBA: http://analystcave.com/excel-vba-multithreading-tool/
See the examples below:
Multithreading a For Loop
Sub RunForVBA(workbookName As String, seqFrom As Long, seqTo As Long)
For i = seqFrom To seqTo
x = seqFrom / seqTo
Next i
End Sub
Sub RunForVBAMultiThread()
Dim parallelClass As Parallel
Set parallelClass = New Parallel
parallelClass.SetThreads 4
Call parallelClass.ParallelFor("RunForVBA", 1, 1000)
End Sub
Run an Excel macro asynchronously
Sub RunAsyncVBA(workbookName As String, seqFrom As Long, seqTo As Long)
For i = seqFrom To seqTo
x = seqFrom / seqTo
Next i
End Sub
Sub RunForVBAAndWait()
Dim parallelClass As Parallel
Set parallelClass = New Parallel
Call parallelClass.ParallelAsyncInvoke("RunAsyncVBA", ActiveWorkbook.Name, 1, 1000)
'Do other operations here
'....
parallelClass.AsyncThreadJoin
End Sub
Use serialize
and deserialize
methods in SerializationUtils
from commons-lang.
The way the operator works is that it gets incremented at the same time, but if it is before a variable, the expression will evaluate with the incremented/decremented variable:
int x = 0; //x is 0
int y = ++x; //x is 1 and y is 1
If it is after the variable the current statement will get executed with the original variable, as if it had not yet been incremented/decremented:
int x = 0; //x is 0
int y = x++; //'y = x' is evaluated with x=0, but x is still incremented. So, x is 1, but y is 0
I agree with dcp in using pre-increment/decrement (++x) unless necessary. Really the only time I use the post-increment/decrement is in while loops or loops of that sort. These loops are the same:
while (x < 5) //evaluates conditional statement
{
//some code
++x; //increments x
}
or
while (x++ < 5) //evaluates conditional statement with x value before increment, and x is incremented
{
//some code
}
You can also do this while indexing arrays and such:
int i = 0;
int[] MyArray = new int[2];
MyArray[i++] = 1234; //sets array at index 0 to '1234' and i is incremented
MyArray[i] = 5678; //sets array at index 1 to '5678'
int temp = MyArray[--i]; //temp is 1234 (becasue of pre-decrement);
Etc, etc...
I'm using Android Studio 0.5.2. So if your version is lower than mine my answer may not work for you.
3 ways to add a new Jar to your project:
A Project Structure window will popup.
On the left column click on 'Libraries' then look at the right pane where there is a plus sign '+' and click on it then enter the path to your new library.
Make sure the new library is under the 'project\libs\' folder otherwise you may get a broken link when you save your project source code.
Another solution is setting the size attribute on the select box.
Thus taking back control of the styling of the dropdown from the Apple style and displaying Font Awesome Icons correctly.
I just learned something new about the ternary operator. The short form that omits the middle operand is truly elegant, and is one of the many reasons that C remains relevant. FYI, I first really got my head around this in the context of a routine implemented in C#, which also supports the ternary operator. Since the ternary operator is in C, it stands to reason that it would be in other languages that are essentially extensions thereof (e. g., Objective-C, C#).
Just define your variables in global.js outside a function scope:
// global.js
var global1 = "I'm a global!";
var global2 = "So am I!";
// other js-file
function testGlobal () {
alert(global1);
}
To make sure that this works you have to include/link to global.js before you try to access any variables defined in that file:
<html>
<head>
<!-- Include global.js first -->
<script src="/YOUR_PATH/global.js" type="text/javascript"></script>
<!-- Now we can reference variables, objects, functions etc.
defined in global.js -->
<script src="/YOUR_PATH/otherJsFile.js" type="text/javascript"></script>
</head>
[...]
</html>
You could, of course, link in the script tags just before the closing <body>-tag if you do not want the load of js-files to interrupt the initial page load.
I found a great way to do this and it will work with multiple controls. Add a TableLayout with 3 columns. Make the center column an absolute size (however much room you need). Set the two outside columns to 100%. Add a Panel to the center column and add any controls you need and place them where you want. That center panel will now remain centered in your form.
If anyone is coming here looking for an answer that utilizes iframe
here it is
<iframe srcdoc="<html><body>your-html-here</body></html>" />
I'm coming from a SQL Server background also and spent the past 2 weeks figuring out how to run scripts like this in IBM Data Studio. Hope it helps.
CREATE VARIABLE v_lookupid INTEGER DEFAULT (4815162342); --where 4815162342 is your variable data
SELECT * FROM DB1.PERSON WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_DATA WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_HIST WHERE PERSON_ID = v_lookupid;
DROP VARIABLE v_lookupid;
As Brad Wilson states in his answer here:
ModelState.IsValid tells you if any model errors have been added to ModelState.
The default model binder will add some errors for basic type conversion issues (for example, passing a non-number for something which is an "int"). You can populate ModelState more fully based on whatever validation system you're using.
Try using :-
if (!ModelState.IsValid)
{
var errors = ModelState.SelectMany(x => x.Value.Errors.Select(z => z.Exception));
// Breakpoint, Log or examine the list with Exceptions.
}
If it helps catching you the error. Courtesy this and this
Your syntax is pretty screwy.
Change this:
input:not(disabled)not:[type="submit"]:focus{
to:
input:not(:disabled):not([type="submit"]):focus{
Seems that many people don't realize :enabled
and :disabled
are valid CSS selectors...
If you are applying any plugins. Then, in your module Gradle file (usually the app/build.gradle
),make sure you add the apply plugin
line at the bottom of the file to enable the Gradle plugin.
e.g.
If you use the following CSS
<link href="~/Content/common/bootstrap.css" rel="stylesheet" type="text/css" />
<link href="~/Content/common/bootstrap.min.css" rel="stylesheet" type="text/css" />
<link href="~/Content/common/site.css" rel="stylesheet" type="text/css" />
just change it into the following style by adding media="screen"
<link href="~/Content/common/bootstrap.css" rel="stylesheet" **media="screen"** type="text/css" />
<link href="~/Content/common/bootstrap.min.css" rel="stylesheet" **media="screen"** type="text/css" />
<link href="~/Content/common/site.css" rel="stylesheet" **media="screen"** type="text/css" />
I think it will work.
the former answers like
@media print {
a[href]:after {
content: none !important;
}
}
were not worked well in the chrome browse.
This is an excerpt from Structure and Interpretation of Computer Programs about tail recursion.
In contrasting iteration and recursion, we must be careful not to confuse the notion of a recursive process with the notion of a recursive procedure. When we describe a procedure as recursive, we are referring to the syntactic fact that the procedure definition refers (either directly or indirectly) to the procedure itself. But when we describe a process as following a pattern that is, say, linearly recursive, we are speaking about how the process evolves, not about the syntax of how a procedure is written. It may seem disturbing that we refer to a recursive procedure such as fact-iter as generating an iterative process. However, the process really is iterative: Its state is captured completely by its three state variables, and an interpreter need keep track of only three variables in order to execute the process.
One reason that the distinction between process and procedure may be confusing is that most implementations of common languages (including Ada, Pascal, and C) are designed in such a way that the interpretation of any recursive procedure consumes an amount of memory that grows with the number of procedure calls, even when the process described is, in principle, iterative. As a consequence, these languages can describe iterative processes only by resorting to special-purpose “looping constructs” such as do, repeat, until, for, and while. The implementation of Scheme does not share this defect. It will execute an iterative process in constant space, even if the iterative process is described by a recursive procedure. An implementation with this property is called tail-recursive. With a tail-recursive implementation, iteration can be expressed using the ordinary procedure call mechanism, so that special iteration constructs are useful only as syntactic sugar.
Might not be a solution for all but I found that if I reduced the screen resolution of the RDP session, I was able to get in. The server was at 95% capacity I went from 3 high res monitors to 1 800x600 window.
Pandas Timestamp to datetime.datetime:
pd.Timestamp('2014-01-23 00:00:00', tz=None).to_pydatetime()
datetime.datetime to Timestamp
pd.Timestamp(datetime(2014, 1, 23))
Just add throw
where needed, and try
block to the caller that handles the error. By convention you should only throw things that derive from std::exception
, so include <stdexcept>
first.
int compare(int a, int b) {
if (a < 0 || b < 0) {
throw std::invalid_argument("a or b negative");
}
}
void foo() {
try {
compare(-1, 0);
} catch (const std::invalid_argument& e) {
// ...
}
}
Also, look into Boost.Exception.
From Dockerfile reference:
The
ARG
instruction defines a variable that users can pass at build-time to the builder with the docker build command using the--build-arg <varname>=<value>
flag.The
ENV
instruction sets the environment variable<key>
to the value<value>
.
The environment variables set usingENV
will persist when a container is run from the resulting image.
So if you need build-time customization, ARG
is your best choice.
If you need run-time customization (to run the same image with different settings), ENV
is well-suited.
If I want to add let's say 20 (a random number) of extensions or any other feature that can be enable|disable
Given the number of combinations involved, using ENV
to set those features at runtime is best here.
But you can combine both by:
ARG
ARG
as an ENV
That is, with a Dockerfile including:
ARG var
ENV var=${var}
You can then either build an image with a specific var
value at build-time (docker build --build-arg var=xxx
), or run a container with a specific runtime value (docker run -e var=yyy
)
Do you really need to "build" it from javascript or can you simply return the built HTML from PHP and insert it into the DOM?
The primary purpose of AF_INET was to allow for other possible network protocols or address families (AF is for address family; PF_INET is for the (IPv4) internet protocol family). For example, there probably are a few Netware SPX/IPX networks around still; there were other network systems like DECNet, StarLAN and SNA, not to mention the ill-begotten ISO OSI (Open Systems Interconnection), and these did not necessarily use the now ubiquitous IP address to identify the peer host in network connections.
The ubiquitous alternative to AF_INET (which, in retrospect, should have been named AF_INET4) is AF_INET6, for the IPv6 address family. IPv4 uses 32-bit addresses; IPv6 uses 128-bit addresses.
You may see some other values - but they are unusual. It is there to allow for alternatives and future directions. The sockets interface is actually very general indeed - which is one of the reasons it has thrived where other networking interfaces have withered.
Life has (mostly) gotten simpler - be grateful.
What about replace the item if you know the position:
aList[0]=2014
Or if you don't know the position loop in the list, find the item and then replace it
aList = [123, 'xyz', 'zara', 'abc']
for i,item in enumerate(aList):
if item==123:
aList[i]=2014
break
print aList
For Any String try this:
string s = Console.ReadLine();
foreach( char c in s)
{
Console.WriteLine(System.Convert.ToInt32(c));
}
Console.ReadKey();
For adding multiple query params, this is what worked for me (from here https://forum.vuejs.org/t/vue-router-programmatically-append-to-querystring/3655/5).
an answer above was close … though with Object.assign it will mutate this.$route.query which is not what you want to do … make sure the first argument is {} when doing Object.assign
this.$router.push({ query: Object.assign({}, this.$route.query, { newKey: 'newValue' }) });
More or less same as above but concurrent using gevent :)
"""Gevent based crontab implementation"""
from datetime import datetime, timedelta
import gevent
# Some utility classes / functions first
def conv_to_set(obj):
"""Converts to set allowing single integer to be provided"""
if isinstance(obj, (int, long)):
return set([obj]) # Single item
if not isinstance(obj, set):
obj = set(obj)
return obj
class AllMatch(set):
"""Universal set - match everything"""
def __contains__(self, item):
return True
allMatch = AllMatch()
class Event(object):
"""The Actual Event Class"""
def __init__(self, action, minute=allMatch, hour=allMatch,
day=allMatch, month=allMatch, daysofweek=allMatch,
args=(), kwargs={}):
self.mins = conv_to_set(minute)
self.hours = conv_to_set(hour)
self.days = conv_to_set(day)
self.months = conv_to_set(month)
self.daysofweek = conv_to_set(daysofweek)
self.action = action
self.args = args
self.kwargs = kwargs
def matchtime(self, t1):
"""Return True if this event should trigger at the specified datetime"""
return ((t1.minute in self.mins) and
(t1.hour in self.hours) and
(t1.day in self.days) and
(t1.month in self.months) and
(t1.weekday() in self.daysofweek))
def check(self, t):
"""Check and run action if needed"""
if self.matchtime(t):
self.action(*self.args, **self.kwargs)
class CronTab(object):
"""The crontab implementation"""
def __init__(self, *events):
self.events = events
def _check(self):
"""Check all events in separate greenlets"""
t1 = datetime(*datetime.now().timetuple()[:5])
for event in self.events:
gevent.spawn(event.check, t1)
t1 += timedelta(minutes=1)
s1 = (t1 - datetime.now()).seconds + 1
print "Checking again in %s seconds" % s1
job = gevent.spawn_later(s1, self._check)
def run(self):
"""Run the cron forever"""
self._check()
while True:
gevent.sleep(60)
import os
def test_task():
"""Just an example that sends a bell and asd to all terminals"""
os.system('echo asd | wall')
cron = CronTab(
Event(test_task, 22, 1 ),
Event(test_task, 0, range(9,18,2), daysofweek=range(0,5)),
)
cron.run()
Use the following command:
git clone --depth <depth> -b <branch> <repo_url>
Where:
depth
is the amount of commits you want to include. i.e. if you just want the latest commit use git clone --depth 1
branch
is the name of the remote branch that you want to clone from. i.e. if you want the last 3 commits from master
branch use git clone --depth 3 -b master
repo_url
is the url of your repositoryThis workaround worked for me. I edited the serverInfo.properties file as given below:
server.info=Apache Tomcat/8.0.0
server.number=8.0.0.0
server.built=Oct 6 2016 20:15:31 UTC
First, array_length
should be an integer and not a string:
array_length = len(array_dates)
Second, your for
loop should be constructed using range
:
for i in range(array_length): # Use `xrange` for python 2.
Third, i
will increment automatically, so delete the following line:
i += 1
Note, one could also just zip
the two lists given that they have the same length:
import csv
dates = ['2020-01-01', '2020-01-02', '2020-01-03']
urls = ['www.abc.com', 'www.cnn.com', 'www.nbc.com']
csv_file_patch = '/path/to/filename.csv'
with open(csv_file_patch, 'w') as fout:
csv_file = csv.writer(fout, delimiter=';', lineterminator='\n')
result_array = zip(dates, urls)
csv_file.writerows(result_array)
This will return default size of text on button in pixels.
val size = Button(this).textSize
float size = new Button(this).getTextSize();
#! /bin/sh
# Run all programs in a directory in parallel
# Usage: run-parallel directory delay
# Copyright 2013 by Marc Perkel
# docs at http://wiki.junkemailfilter.com/index.php/How_to_run_a_Linux_script_every_few_seconds_under_cron"
# Free to use with attribution
if [ $# -eq 0 ]
then
echo
echo "run-parallel by Marc Perkel"
echo
echo "This program is used to run all programs in a directory in parallel"
echo "or to rerun them every X seconds for one minute."
echo "Think of this program as cron with seconds resolution."
echo
echo "Usage: run-parallel [directory] [delay]"
echo
echo "Examples:"
echo " run-parallel /etc/cron.20sec 20"
echo " run-parallel 20"
echo " # Runs all executable files in /etc/cron.20sec every 20 seconds or 3 times a minute."
echo
echo "If delay parameter is missing it runs everything once and exits."
echo "If only delay is passed then the directory /etc/cron.[delay]sec is assumed."
echo
echo 'if "cronsec" is passed then it runs all of these delays 2 3 4 5 6 10 12 15 20 30'
echo "resulting in 30 20 15 12 10 6 5 4 3 2 executions per minute."
echo
exit
fi
# If "cronsec" is passed as a parameter then run all the delays in parallel
if [ $1 = cronsec ]
then
$0 2 &
$0 3 &
$0 4 &
$0 5 &
$0 6 &
$0 10 &
$0 12 &
$0 15 &
$0 20 &
$0 30 &
exit
fi
# Set the directory to first prameter and delay to second parameter
dir=$1
delay=$2
# If only parameter is 2,3,4,5,6,10,12,15,20,30 then automatically calculate
# the standard directory name /etc/cron.[delay]sec
if [[ "$1" =~ ^(2|3|4|5|6|10|12|15|20|30)$ ]]
then
dir="/etc/cron.$1sec"
delay=$1
fi
# Exit if directory doesn't exist or has no files
if [ ! "$(ls -A $dir/)" ]
then
exit
fi
# Sleep if both $delay and $counter are set
if [ ! -z $delay ] && [ ! -z $counter ]
then
sleep $delay
fi
# Set counter to 0 if not set
if [ -z $counter ]
then
counter=0
fi
# Run all the programs in the directory in parallel
# Use of timeout ensures that the processes are killed if they run too long
for program in $dir/* ; do
if [ -x $program ]
then
if [ "0$delay" -gt 1 ]
then
timeout $delay $program &> /dev/null &
else
$program &> /dev/null &
fi
fi
done
# If delay not set then we're done
if [ -z $delay ]
then
exit
fi
# Add delay to counter
counter=$(( $counter + $delay ))
# If minute is not up - call self recursively
if [ $counter -lt 60 ]
then
. $0 $dir $delay &
fi
# Otherwise we're done
An example would be nice - here's a trivial one
for %I in (*.*) do @echo %~xI
it lists only the EXTENSIONS of each file in current folder
for more useful variable combinations (also listed in previous response) from the CMD prompt execute: HELP FOR
which contains this snippet
The modifiers can be combined to get compound results:
%~dpI - expands %I to a drive letter and path only
%~nxI - expands %I to a file name and extension only
%~fsI - expands %I to a full path name with short names only
%~dp$PATH:I - searches the directories listed in the PATH
environment variable for %I and expands to the
drive letter and path of the first one found.
%~ftzaI - expands %I to a DIR like output line
On the Windows subsystem for Linux you can copy to the clipboard with clip.exe.
cat file | clip.exe
Keep in mind to use the |
pipe command. And not a >
command, since that will not work.
There are many ways to get a path. See CurrentDirrectory mentioned. Also, you can get the full file name of your application by using Assembly.GetExecutingAssembly().Location and then use Path class to get a directory name.
This page by Microsoft describes how to set up access to IIS Server Express from other computers on the local network.
In a nutshell:
1) from a command prompt with admin privileges:
netsh http add urlacl url=http://[your ip address]:8181/ user=everyone
2) In Windows Firewall with Advanced Security, create a new inbound rule for port 8181 to allow external connections
3) In applicationhost.config, in the node for your project, add:
<binding protocol="http" bindingInformation="*:8181:[your ip address]" />
Do NOT add (as was suggested in another answer):
<binding protocol="http" bindingInformation="*:8181:*" />
The above wildcard binding broke my access from http://192.168.1.6:8181/
You can comma-separate shadows:
box-shadow: inset 0 2px 0px #dcffa6, 0 2px 5px #000;
From Android Studio v3 and up, Infer Constraint was removed from the dropdown.
Use the magic wand icon in the toolbar menu above the design preview; there is the "Infer Constraints" button. Click on this button, this will automatically add some lines in the text field and the red line will be removed.
Another quick way of finding out what packages are installed locally and without their dependencies is to use:
npm list --depth=0
Which gives you something like
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
Obviously, the same can be done globally with npm list -g --depth=0
.
This method is clearer in case you have installed a lot of packages.
To find out which packages need to be updated, you can use npm outdated -g --depth=0
.
var CurrentMouseXPostion;
var CurrentMouseYPostion;
$(document).mousemove(function(event) {
CurrentMouseXPostion = event.pageX;
CurrentMouseYPostion = event.pageY;
});
Make an eventListener on the main object , in my case the document object, to get the mouse coords every frame and store them in global variables, and like that you can read mouse Y & Z whenever youlike , wherever you like.
Had the same problem, it was indeed caused by weblogic stupidly using its own opensaml implementation. To solve it, you have to tell it to load classes from WEB-INF/lib
for this package in weblogic.xml
:
<prefer-application-packages>
<package-name>org.opensaml.*</package-name>
</prefer-application-packages>
maybe <prefer-web-inf-classes>true</prefer-web-inf-classes>
would work too.
Here's one that i wrote:
$error = false;
$sql= "SELECT username FROM users WHERE username = '$username'";
$checkSQL = mysqli_query($db, $checkSQL);
if(mysqli_num_rows($checkSQL) != 0) {
$error = true;
echo '<span class="error">Username taken.</span>';
}
Works like a charm!
Here's a list of languages that can be used to develop on android:
Java - primary android development language
Kotlin, language from JetBrains which received first-party support from Google, announced in Google I/O 2017
C++ - NDK for libraries, not apps
Python, bash, et. al. - Via the Scripting Environment
Corona- One is to use the Corona SDK . Corona is a high level SDK built on the Lua programming language. Lua is much simpler to learn than Java and the SDK takes away a lot of the pain in developing Android app.
Cordova - which uses HTML5, JavaScript, CSS, and can be extended with Java
Xamarin technology - that uses c# and in which mono is used for that. Here MonoTouch and Mono for Android are cross-platform implementations of the Common Language Infrastructure (CLI) and Common Language Specifications.
As for your second question: android is highly dependent on it's java architecture, I find it unlikely that there will be other primary development languages available any time soon. However, there's no particular reason why someone couldn't implement another language in Java (something like Jython) and use that. However, that surely won't be easier or as performant as just writing the code in Java.
Create .gitconfig and add
[core]
longpaths = true
You can create the file in a project location (not sure) and also in the global location. In my case the location is C:\Users\{name}\
.
cast(created_at as date)
That will work only in 2008 and newer versions of SQL Server
If you are using older version then use
convert(varchar, created_at, 101)
Conditional Welcome Message
echo 'Welcome '.($user['is_logged_in'] ? $user['first_name'] : 'Guest').'!';
Nested PHP Shorthand
echo 'Your score is: '.($score > 10 ? ($age > 10 ? 'Average' : 'Exceptional') : ($age > 10 ? 'Horrible' : 'Average') );
I wanted a vanilla, lightweight (jQuery UI Layout weighs in at 185 KB), no dependency option (all existing libraries require jQuery), so I wrote Split.js.
It weights less than 2 KB and does not require any special markup. It supports older browsers back to Internet Explorer 9 (or Internet Explorer 8 with polyfills). For modern browsers, you can use it with Flexbox and grid layouts.
I had exactly the same problem with my website. I have a page that is displayed on a projector, on walls, big screens..
As I don't know the max size of my font, I re-used the plugin above of @GeekMonkey but incrementing the fontsize :
$.fn.textfill = function(options) {
var defaults = { innerTag: 'span', padding: '10' };
var Opts = jQuery.extend(defaults, options);
return this.each(function() {
var ourText = $(Opts.innerTag + ':visible:first', this);
var fontSize = parseFloat(ourText.css('font-size'),10);
var doNotTrepass = $(this).height()-2*Opts.padding ;
var textHeight;
do {
ourText.css('font-size', fontSize);
textHeight = ourText.height();
fontSize = fontSize + 2;
} while (textHeight < doNotTrepass );
});
};
Ignacio Vazquez-Abrams' approved answer is quite right. It is, however, from the Python 2 generation. An update for the now-current Python 3 would be:
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object, metaclass=MC):
pass
print(C)
If you want code that runs across both Python 2 and Python 3, the six module has you covered:
from __future__ import print_function
from six import with_metaclass
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(with_metaclass(MC)):
pass
print(C)
Finally, if you have one class that you want to have a custom static repr, the class-based approach above works great. But if you have several, you'd have to generate a metaclass similar to MC
for each, and that can get tiresome. In that case, taking your metaprogramming one step further and creating a metaclass factory makes things a bit cleaner:
from __future__ import print_function
from six import with_metaclass
def custom_class_repr(name):
"""
Factory that returns custom metaclass with a class ``__repr__`` that
returns ``name``.
"""
return type('whatever', (type,), {'__repr__': lambda self: name})
class C(with_metaclass(custom_class_repr('Wahaha!'))): pass
class D(with_metaclass(custom_class_repr('Booyah!'))): pass
class E(with_metaclass(custom_class_repr('Gotcha!'))): pass
print(C, D, E)
prints:
Wahaha! Booyah! Gotcha!
Metaprogramming isn't something you generally need everyday—but when you need it, it really hits the spot!
If you can modify the HTML: http://jsfiddle.net/8JwhZ/3/
<div class="title">
<span class="name">Cumulative performance</span>
<span class="date">20/02/2011</span>
</div>
.title .date { float:right }
.title .name { float:left }
To Remove Special character
String t2 = "!@#$%^&*()-';,./?><+abdd";
t2 = t2.replaceAll("\\W+","");
Output will be : abdd.
This works perfectly.
After struggling for sometime I found the information in https://tommcfarlin.com/importing-a-large-database/
Connect to Mysql (let's use root for both username and password):
mysql -uroot -proot
Connect to the database (let's say it is called emptyDatabase (your should get a confirmation message):
connect emptyDatabase
3 Import the source code, lets say the file is called mySource.sql and it is in a folder called mySoureDb under the profile of a user called myUser:
source /Users/myUser/mySourceDB/mySource.sql
Another solution create generic list of anonymous type.
var list = new[]
{
new { Number = 10, Name = "Smith" },
new { Number = 10, Name = "John" }
}.ToList();
foreach (var item in list)
{
Console.WriteLine(item.Name);
}
This also gives you intellisense
support, I think in some situations its better than Tuple
and Dictionary
.
You need to be aware of a gotcha. Any class that you pass around as the DataObject in the drag/drop operation has to be Serializable. So if you try and pass an object, and it is not working, ensure it can be serialized as that is almost certainly the problem. This has caught me out a couple of times!
Use Dictionary - it uses hashtable but is typesafe.
Also, your Java code for
int a = map.get(key);
//continue with your logic
will be best coded in C# this way:
int a;
if(dict.TryGetValue(key, out a)){
//continue with your logic
}
This way, you can scope the need of variable "a" inside a block and it is still accessible outside the block if you need it later.
I have found a way if you know startIndex and endIndex of the elements one need to remove from ArrayList
Let al
be the original ArrayList and startIndex
,endIndex
be start and end index to be removed from the array respectively:
al.subList(startIndex, endIndex + 1).clear();
I was working on some groovy code, which doesn't auto-format on save. What I did was right-click on the code pane, then chose ESLint Fix. That fixed my indents.
Did you try:
$DBH = new PDO( "connection string goes here" );
$row = $DBH->query( "select figure from table1" )->fetch();
echo $row["figure"];
$DBH = null;
When you get a connection to PostgreSQL
it is always to a particular database. To access a different database, you must get a new connection.
Using \c
in psql closes the old connection and acquires a new one, using the specified database and/or credentials. You get a whole new back-end process and everything.
If you want repeatable fade animation you can do that by using CABasicAnimation
like below :
extension UIView {
enum AnimationKeyPath: String {
case opacity = "opacity"
}
func flash(animation: AnimationKeyPath ,withDuration duration: TimeInterval = 0.5, repeatCount: Float = 5){
let flash = CABasicAnimation(keyPath: animation.rawValue)
flash.duration = duration
flash.fromValue = 1 // alpha
flash.toValue = 0 // alpha
flash.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
flash.autoreverses = true
flash.repeatCount = repeatCount
layer.add(flash, forKey: nil)
}
}
// You can use it with all kind of UIViews e.g. UIButton, UILabel, UIImage, UIImageView, ...
imageView.flash(animation: .opacity, withDuration: 1, repeatCount: 5)
titleLabel.flash(animation: .opacity, withDuration: 1, repeatCount: 5)
I use Swift and auto layout (but can't comment on the previous Swift answer); here's how I do it without a scroll view:
I layout my form in IB with vertical constraints between the fields to separate them. I add a vertical constraint from the topmost field to the container view, and create an outlet to that (topSpaceForFormConstraint in the code below). All that's needed is to update this constraint, which I do in an animation block for a nice soft motion. The height check is optional of course, in this case I needed to do it just for the smallest screen size.
This can be called using any of the usual textFieldDidBeginEditing or keyboardWillShow methods.
func setFormHeight(top: CGFloat)
{
let height = UIScreen.mainScreen().bounds.size.height
// restore text input fields for iPhone 4/4s
if (height < 568) {
UIView.animateWithDuration(0.2, delay: 0.0, options: nil, animations: {
self.topSpaceForFormConstraint.constant = top
self.view.layoutIfNeeded()
}, completion: nil)
}
}
If you're using SASS in your project, I've built this mixin to make it work the way we all want it to:
@mixin not($ignorList...) {
//if only a single value given
@if (length($ignorList) == 1){
//it is probably a list variable so set ignore list to the variable
$ignorList: nth($ignorList,1);
}
//set up an empty $notOutput variable
$notOutput: '';
//for each item in the list
@each $not in $ignorList {
//generate a :not([ignored_item]) segment for each item in the ignore list and put them back to back
$notOutput: $notOutput + ':not(#{$not})';
}
//output the full :not() rule including all ignored items
&#{$notOutput} {
@content;
}
}
it can be used in 2 ways:
Option 1: list the ignored items inline
input {
/*non-ignored styling goes here*/
@include not('[type="radio"]','[type="checkbox"]'){
/*ignored styling goes here*/
}
}
Option 2: list the ignored items in a variable first
$ignoredItems:
'[type="radio"]',
'[type="checkbox"]'
;
input {
/*non-ignored styling goes here*/
@include not($ignoredItems){
/*ignored styling goes here*/
}
}
Outputted CSS for either option
input {
/*non-ignored styling goes here*/
}
input:not([type="radio"]):not([type="checkbox"]) {
/*ignored styling goes here*/
}
Maybe a bit late to answer but i would like to share my way. I found an easy way with threads in the main program for a winform application.
Lets say you have your form "splashscreen" with an animation, and your "main" which has all your application code.
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Thread mythread;
mythread = new Thread(new ThreadStart(ThreadLoop));
mythread.Start();
Application.Run(new MainForm(mythread));
}
public static void ThreadLoop()
{
Application.Run(new SplashScreenForm());
}
In your main form in the constructor:
public MainForm(Thread splashscreenthread)
{
InitializeComponent();
//add your constructor code
splashscreenthread.Abort();
}
This way the splashscreen will last just the time for your main form to load.
Your splashcreen form should have his own way to animate/display information. In my project my splashscreen start a new thread, and every x milliseconds it changes his main picture to another which is a slightly different gear, giving the illusion of a rotation.
example of my splashscreen:
int status = 0;
private bool IsRunning = false;
public Form1()
{
InitializeComponent();
StartAnimation();
}
public void StartAnimation()
{
backgroundWorker1.WorkerReportsProgress = false;
backgroundWorker1.WorkerSupportsCancellation = true;
IsRunning = true;
backgroundWorker1.RunWorkerAsync();
}
public void StopAnimation()
{
backgroundWorker1.CancelAsync();
}
delegate void UpdatingThreadAnimation();
public void UpdateAnimationFromThread()
{
try
{
if (label1.InvokeRequired == false)
{
UpdateAnimation();
}
else
{
UpdatingThreadAnimation d = new UpdatingThreadAnimation(UpdateAnimationFromThread);
this.Invoke(d, new object[] { });
}
}
catch(Exception e)
{
}
}
private void UpdateAnimation()
{
if(status ==0)
{
// mypicture.image = image1
}else if(status ==1)
{
// mypicture.image = image2
}
//doing as much as needed
status++;
if(status>1) //change here if you have more image, the idea is to set a cycle of images
{
status = 0;
}
this.Refresh();
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
while (IsRunning == true)
{
System.Threading.Thread.Sleep(100);
UpdateAnimationFromThread();
}
}
Hope this will help some people. Sorry if i have made some mistakes. English is not my first language.
I have just found a really good example of how to do this here: http://developer.android.com/reference/android/webkit/WebView.html . You just need to change the setprogress from:
activity.setProgress(progress * 1000);
to
activity.setProgress(progress * 100);
if you are using spring security then you can get the current logged in user by
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
String name = auth.getName(); //get logged in username
Reason is to have some value other than zero. General practice to have it short globally and long for long working scripts like parsers, crawlers, dumpers, exporting & importing scripts etc.
try using
View view_instance = (View)findViewById(R.id.nutrition_bar_filled);
view_instance.setWidth(10);
use Layoutparams to do so where you can set width and height like below.
LayoutParams lp = new LayoutParams(10,LayoutParams.wrap_content);
View_instance.setLayoutParams(lp);
inside your <div></div>
element you can call the $(document).ready(function(){});
execute a command, something like
<div id="div1">
<script>
$(document).ready(function(){
//do something
});
</script>
</div>
and you can do the same to other divs that you have. this was suitable if you loading your div via partial view
Based on the code here: http://cplusplus.happycodings.com/algorithms/code17.html
// Merge Sort
#include <iostream>
using namespace std;
int a[50];
void merge(int,int,int);
void merge_sort(int low,int high)
{
int mid;
if(low<high)
{
mid = low + (high-low)/2; //This avoids overflow when low, high are too large
merge_sort(low,mid);
merge_sort(mid+1,high);
merge(low,mid,high);
}
}
void merge(int low,int mid,int high)
{
int h,i,j,b[50],k;
h=low;
i=low;
j=mid+1;
while((h<=mid)&&(j<=high))
{
if(a[h]<=a[j])
{
b[i]=a[h];
h++;
}
else
{
b[i]=a[j];
j++;
}
i++;
}
if(h>mid)
{
for(k=j;k<=high;k++)
{
b[i]=a[k];
i++;
}
}
else
{
for(k=h;k<=mid;k++)
{
b[i]=a[k];
i++;
}
}
for(k=low;k<=high;k++) a[k]=b[k];
}
int main()
{
int num,i;
cout<<"*******************************************************************
*************"<<endl;
cout<<" MERGE SORT PROGRAM
"<<endl;
cout<<"*******************************************************************
*************"<<endl;
cout<<endl<<endl;
cout<<"Please Enter THE NUMBER OF ELEMENTS you want to sort [THEN
PRESS
ENTER]:"<<endl;
cin>>num;
cout<<endl;
cout<<"Now, Please Enter the ( "<< num <<" ) numbers (ELEMENTS) [THEN
PRESS ENTER]:"<<endl;
for(i=1;i<=num;i++)
{
cin>>a[i] ;
}
merge_sort(1,num);
cout<<endl;
cout<<"So, the sorted list (using MERGE SORT) will be :"<<endl;
cout<<endl<<endl;
for(i=1;i<=num;i++)
cout<<a[i]<<" ";
cout<<endl<<endl<<endl<<endl;
return 1;
}
Instead of
style="width:100%"
try using
class="col-xs-12"
it will save you 1 character :)
If you no longer need the hided elements, just use element.remove()
instead of element.style.display = 'none';
.
I want to add or remove "active
" class in my code dynamically on ng-click
, here what I have done.
<ul ng-init="selectedTab = 'users'">
<li ng-class="{'active':selectedTab === 'users'}" ng-click="selectedTab = 'users'"><a href="#users" >Users</a></li>
<li ng-class="{'active':selectedTab === 'items'}" ng-click="selectedTab = 'items'"><a href="#items" >Items</a></li>
</ul>
use onmouseup
try something like this
<html>
<head>
<script type="text/javascript">
function hide(){
document.getElementById('span_hide').style.display="none";
}
</script>
</head>
<body>
<a href="page" style="text-decoration:none;display:block;">
<span onmouseup="hide()" id="span_hide">Hide me</span>
</a>
</body>
</html>
EDIT:
<html>
<head>
<script type="text/javascript">
$(document).ready(function(){
$("a").click(function () {
$(this).fadeTo("fast", .5).removeAttr("href");
});
});
function hide(){
document.getElementById('span_hide').style.display="none";
}
</script>
</head>
<body>
<a href="page.html" style="text-decoration:none;display:block;" onclick="return false" >
<span onmouseup="hide()" id="span_hide">Hide me</span>
</a>
</body>
</html>
I was able to fix this problem by setting font-size: 0 .
This question should be on Server Fault. Nevertheless, the following should do the trick, assuming you're talking about TCP and the IP you want to allow is 1.2.3.4:
iptables -A INPUT -p tcp --dport 8000 -s 1.2.3.4 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP
There are 3 things you need.
You need to oAuth with the owner of those photos. (with the 'user_photos' extended permission)
You need the access token (which you get returned in the URL box after the oAuth is done.)
When those are complete you can then access the photos like so https://graph.facebook.com/me?access_token=ACCESS_TOKEN
You can find all of the information in more detail here: http://developers.facebook.com/docs/authentication
You can use
org.apache.commons.lang3.StringUtils.containsIgnoreCase(CharSequence str,
CharSequence searchStr);
Checks if CharSequence contains a search CharSequence irrespective of case, handling null. Case-insensitivity is defined as by String.equalsIgnoreCase(String).
A null CharSequence will return false.
This one will be better than regex as regex is always expensive in terms of performance.
For official doc, refer to : StringUtils.containsIgnoreCase
Update :
If you are among the ones who
regex/Pattern
based solutions, toLowerCase
, you can implement your own custom containsIgnoreCase
using java.lang.String.regionMatches
public boolean regionMatches(boolean ignoreCase,
int toffset,
String other,
int ooffset,
int len)
ignoreCase
: if true, ignores case when comparing characters.
public static boolean containsIgnoreCase(String str, String searchStr) {
if(str == null || searchStr == null) return false;
final int length = searchStr.length();
if (length == 0)
return true;
for (int i = str.length() - length; i >= 0; i--) {
if (str.regionMatches(true, i, searchStr, 0, length))
return true;
}
return false;
}
My Solution was to use 2 asp panels:
<asp:Panel ID=”..” DefaultButton=”ID_OF_SHIPPING_SUBMIT_BUTTON”….></asp:Panel>
Try parent_window.maxsize(x,x);
to set the maximum size. It shouldn't get larger even if you set the background, etc.
Edit: use parent_window.minsize(x,x)
also to set it to a constant size!
I needed to get the last id way after inserting it, so
$lastid = $wpdb->insert_id;
Was not an option.
Did the follow:
global $wpdb;
$id = $wpdb->get_var( 'SELECT id FROM ' . $wpdb->prefix . 'table' . ' ORDER BY id DESC LIMIT 1');
PHP will let you build the pages of your site that make up your video conferencing and chat applications, but it won't deliver or stream video for you - PHP runs on the server only and renders out HTML to a client browser.
For the video, the first thing you'll need is a live streaming account with someone like akamai or the numerous others in the field. Using this account gives you an ingress point for your video - ie: the server that you will stream your live video up to.
Next, you want to get your video out to the browsers - windows media player, flash or silverlight will let you achieve this - embedding the appropriate control for your chosen technology into your page (using PHP or whatever) and given the address of your live video feed.
PHP (or other scripting language) would be used to build the chat part of the application and bring the whole thing together (the chat and the embedded video player).
Hope this helps.
I had a similar problem because of copy paste from another page, what I got:
<form id="form1" runat="server">
...
<form id="form2" runat="server">
....
</form>
</form>
I just removed form with id="form2" inside form with id="form1" and issue gone. This could be not your problem but it could be something similar.
If you're sane about it, editing the config file's safe enough. If you want to be a little more paranoid, you can use the porcelain command to modify it:
git config branch.master.remote newserver
Of course, if you look at the config before and after, you'll see that it did exactly what you were going to do.
But in your individual case, what I'd do is:
git remote rename origin old-origin
git remote rename new-origin origin
That is, if the new server is going to be the canonical remote, why not call it origin as if you'd originally cloned from it?
Didn't cross-check if this answer is already published. If the program need to be extended to floating numbers, the numbers can be multiplied by 10*number of precision needed and then the following code can be again applied.
#include <stdio.h>
int main()
{
int aNumber = 500;
int gResult = 0;
int aLoop = 0;
int i = 0;
for(i = 0; i < aNumber; i++)
{
if(aLoop == 3)
{
gResult++;
aLoop = 0;
}
aLoop++;
}
printf("Reulst of %d / 3 = %d", aNumber, gResult);
return 0;
}
Your code work fine, provided the value in Sheet2!D2
exists in Sheet1!A:A
. If it does not then error 1004 is raised.
To handle this case, try
Sub Demo()
Dim MyStringVar1 As Variant
On Error Resume Next
MyStringVar1 = Application.WorksheetFunction.VLookup(Range("D2"), _
Worksheets("Sheet1").Range("A:C"), 1, False)
On Error GoTo 0
If IsEmpty(MyStringVar1) Then
MsgBox "Value not found!"
End If
Range("E2") = MyStringVar1
End Sub
pgAdmin has GUI for data import since 1.16. You have to create your table first and then you can import data easily - just right-click on the table name and click on Import.
In dash and other shells, you can use
printf "%d\n" (your hexadecimal number)
to convert a hexadecimal number to decimal. This is not bash, or ksh, specific.
Select [Column Name] into [New Table] from [Source Table]
I'd definitely go with System.Data.SQLite (as previously mentioned: http://sqlite.phxsoftware.com/)
It is coherent with ADO.NET (System.Data.*), and is compiled into a single DLL. No sqlite3.dll - because the C code of SQLite is embedded within System.Data.SQLite.dll. A bit of managed C++ magic.
:active
denotes the interaction state (so for a button will be applied during press), :focus
may be a better choice here. However, the styling will be lost once another element gains focus.
The final potential alternative using CSS would be to use :target
, assuming the items being clicked are setting routes (e.g. anchors) within the page- however this can be interrupted if you are using routing (e.g. Angular), however this doesnt seem the case here.
.active:active {_x000D_
color: red;_x000D_
}_x000D_
.focus:focus {_x000D_
color: red;_x000D_
}_x000D_
:target {_x000D_
color: red;_x000D_
}
_x000D_
<button class='active'>Active</button>_x000D_
<button class='focus'>Focus</button>_x000D_
<a href='#target1' id='target1' class='target'>Target 1</a>_x000D_
<a href='#target2' id='target2' class='target'>Target 2</a>_x000D_
<a href='#target3' id='target3' class='target'>Target 3</a>
_x000D_
As such, there is no way in CSS to absolutely toggle a styled state- if none of the above work for you, you will either need to combine with a change in your HTML (e.g. based on a checkbox) or programatically apply/remove a class using e.g. jQuery
$('button').on('click', function(){_x000D_
$('button').removeClass('selected');_x000D_
$(this).addClass('selected');_x000D_
});
_x000D_
button.selected{_x000D_
color:red;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<button>Item</button><button>Item</button><button>Item</button>_x000D_
_x000D_
I have got an error on the first answer so I have changed some code line.
Please try my new code, it's working for me.
using OfficeOpenXml;
using OfficeOpenXml.Table;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
public static class ImportExcelReader
{
public static List<T> ImportExcelToList<T>(this ExcelWorksheet worksheet) where T : new()
{
//DateTime Conversion
Func<double, DateTime> convertDateTime = new Func<double, DateTime>(excelDate =>
{
if (excelDate < 1)
{
throw new ArgumentException("Excel dates cannot be smaller than 0.");
}
DateTime dateOfReference = new DateTime(1900, 1, 1);
if (excelDate > 60d)
{
excelDate = excelDate - 2;
}
else
{
excelDate = excelDate - 1;
}
return dateOfReference.AddDays(excelDate);
});
ExcelTable table = null;
if (worksheet.Tables.Any())
{
table = worksheet.Tables.FirstOrDefault();
}
else
{
table = worksheet.Tables.Add(worksheet.Dimension, "tbl" + ShortGuid.NewGuid().ToString());
ExcelAddressBase newaddy = new ExcelAddressBase(table.Address.Start.Row, table.Address.Start.Column, table.Address.End.Row + 1, table.Address.End.Column);
//Edit the raw XML by searching for all references to the old address
table.TableXml.InnerXml = table.TableXml.InnerXml.Replace(table.Address.ToString(), newaddy.ToString());
}
//Get the cells based on the table address
List<IGrouping<int, ExcelRangeBase>> groups = table.WorkSheet.Cells[table.Address.Start.Row, table.Address.Start.Column, table.Address.End.Row, table.Address.End.Column]
.GroupBy(cell => cell.Start.Row)
.ToList();
//Assume the second row represents column data types (big assumption!)
List<Type> types = groups.Skip(1).FirstOrDefault().Select(rcell => rcell.Value.GetType()).ToList();
//Get the properties of T
List<PropertyInfo> modelProperties = new T().GetType().GetProperties().ToList();
//Assume first row has the column names
var colnames = groups.FirstOrDefault()
.Select((hcell, idx) => new
{
Name = hcell.Value.ToString(),
index = idx
})
.Where(o => modelProperties.Select(p => p.Name).Contains(o.Name))
.ToList();
//Everything after the header is data
List<List<object>> rowvalues = groups
.Skip(1) //Exclude header
.Select(cg => cg.Select(c => c.Value).ToList()).ToList();
//Create the collection container
List<T> collection = new List<T>();
foreach (List<object> row in rowvalues)
{
T tnew = new T();
foreach (var colname in colnames)
{
//This is the real wrinkle to using reflection - Excel stores all numbers as double including int
object val = row[colname.index];
Type type = types[colname.index];
PropertyInfo prop = modelProperties.FirstOrDefault(p => p.Name == colname.Name);
//If it is numeric it is a double since that is how excel stores all numbers
if (type == typeof(double))
{
//Unbox it
double unboxedVal = (double)val;
//FAR FROM A COMPLETE LIST!!!
if (prop.PropertyType == typeof(int))
{
prop.SetValue(tnew, (int)unboxedVal);
}
else if (prop.PropertyType == typeof(double))
{
prop.SetValue(tnew, unboxedVal);
}
else if (prop.PropertyType == typeof(DateTime))
{
prop.SetValue(tnew, convertDateTime(unboxedVal));
}
else if (prop.PropertyType == typeof(string))
{
prop.SetValue(tnew, val.ToString());
}
else
{
throw new NotImplementedException(string.Format("Type '{0}' not implemented yet!", prop.PropertyType.Name));
}
}
else
{
//Its a string
prop.SetValue(tnew, val);
}
}
collection.Add(tnew);
}
return collection;
}
}
How to call this function? please view below code;
private List<FundraiserStudentListModel> GetStudentsFromExcel(HttpPostedFileBase file)
{
List<FundraiserStudentListModel> list = new List<FundraiserStudentListModel>();
if (file != null)
{
try
{
using (ExcelPackage package = new ExcelPackage(file.InputStream))
{
ExcelWorkbook workbook = package.Workbook;
if (workbook != null)
{
ExcelWorksheet worksheet = workbook.Worksheets.FirstOrDefault();
if (worksheet != null)
{
list = worksheet.ImportExcelToList<FundraiserStudentListModel>();
}
}
}
}
catch (Exception err)
{
//save error log
}
}
return list;
}
FundraiserStudentListModel here:
public class FundraiserStudentListModel
{
public string Name { get; set; }
public string Email { get; set; }
public string Phone { get; set; }
}
I use the following function to detect version 9, 10 and 11 of IE:
function ieVersion() {
var ua = window.navigator.userAgent;
if (ua.indexOf("Trident/7.0") > -1)
return 11;
else if (ua.indexOf("Trident/6.0") > -1)
return 10;
else if (ua.indexOf("Trident/5.0") > -1)
return 9;
else
return 0; // not IE9, 10 or 11
}
Your chunk size could be too large, have you tried dropping that - maybe 1024 bytes at a time? (also, you could use with
to tidy up the syntax)
def DownloadFile(url):
local_filename = url.split('/')[-1]
r = requests.get(url)
with open(local_filename, 'wb') as f:
for chunk in r.iter_content(chunk_size=1024):
if chunk: # filter out keep-alive new chunks
f.write(chunk)
return
Incidentally, how are you deducing that the response has been loaded into memory?
It sounds as if python isn't flushing the data to file, from other SO questions you could try f.flush()
and os.fsync()
to force the file write and free memory;
with open(local_filename, 'wb') as f:
for chunk in r.iter_content(chunk_size=1024):
if chunk: # filter out keep-alive new chunks
f.write(chunk)
f.flush()
os.fsync(f.fileno())
Another method:
SELECT *
FROM (
SELECT * FROM table_name
ORDER BY date ASC, time ASC
) AS sub
GROUP BY name
GROUP BY groups on the first matching result it hits. If that first matching hit happens to be the one you want then everything should work as expected.
I prefer this method as the subquery makes logical sense rather than peppering it with other conditions.
Method that works nicely in Safari. Also works in Firefox and Opera, but with a warning.
Location: http://[email protected]/
This tells browser to open URL with new username, overriding previous one.
I had this problem. As stated it is probably a static declaration issue. In my case it was because I had a static within a DEBUG clause. That is (in c#)
#if DEBUG
public static bool DOTHISISINDEBUGONLY = false;
#endif
Everything worked fine until I complied a Release version of the code and after that I got this error - even on old release versions of the code. Once I took the variable out of the DEBUG clause everything returned to normal.
The concept of remote
is simply the URL of your remote repository.
The origin
is an alias pointing to that URL. So instead of writing the whole URL every single time we want to push something to our repository, we just use this alias and run:
git push -u origin master
Telling to git to push
our code from our local master branch to the remote origin repository.
Whenever we clone a repository, git creates this alias for us by default. Also whenever we create a new repository, we just create it our self.
Whatever the case it is, we can always change this name to anything we like, running this:
git remote rename [current-name] [new-name]
Since it is stored on the client side of the git application (on our machine) changing it will not affect anything in our development process, neither at our remote repository. Remember, it is only a name pointing to an address.
The only thing that changes here by renaming the alias, is that we have to declare this new name every time we push something to our repository.
git push -u my-remote-alias master
Obviously a single name can not point to two different addresses. That's why you get this error message. There is already an alias named origin
at your local machine. To see how many aliases you have and what are they, you can initiate this command:
git remote -v
This will show you all the aliases you have plus the corresponding URLs.
You can remove them as well if you like running this:
git remote rm my-remote-alias
Happy coding.
I used Adobe's detection kit, originally suggested by justpassinby. Their system is nice because it detects the version number and compares it for you against your 'required version'
One bad thing is it does an alert showing the detected version of flash, which isn't very user friendly. All of a sudden a box pops up with some seemingly random numbers.
Some modifications you might want to consider:
Finding of week number for each date of a month (considering Monday as beginning of the week)
Keep the first date of month contant $B$13
=WEEKNUM(B18,2)-WEEKNUM($B$13,2)+1
WEEKNUM(B18,2)
- returns the week number of the date mentioned in cell B18
WEEKNUM($B$13,2)
- returns the week number of the 1st date of month in cell B13
panel: {
// ios
backgroundColor: '#03A9F4',
alignItems: 'center',
shadowOffset: {width: 0, height: 13},
shadowOpacity: 0.3,
shadowRadius: 6,
// android (Android +5.0)
elevation: 3,
}
or you can use react-native-shadow for android
I think you need the btn class.
It would be like this:
<a class="btn disabled" href="#">Disabled link</a>
@JoshAdel covered a lot of it, but if you just want to time the execution of an entire script, you can run it under time
on a unix-like system.
kotai:~ chmullig$ cat sleep.py
import time
print "presleep"
time.sleep(10)
print "post sleep"
kotai:~ chmullig$ python sleep.py
presleep
post sleep
kotai:~ chmullig$ time python sleep.py
presleep
post sleep
real 0m10.035s
user 0m0.017s
sys 0m0.016s
kotai:~ chmullig$
None of these was quite what i wanted:
public static T GetFieldValueOrDefault<T>(this SqlDataReader reader, string name)
{
int index = reader.GetOrdinal(name);
T value = reader.IsDBNull(index) ? default(T) : reader.GetFieldValue<T>(index);
return value;
}
Building on BrainCore's answer:
int index = 0;
str = "223232-1.jpg";
//Assuming we trust str isn't null
if (str.Contains('-') == "true")
{
int index = str.IndexOf('-');
}
if(index > 0) {
return str.Substring(0, index);
}
else {
return str;
}
A weird thing I found was that the environment variable SYSTEMROOT
must be set otherwise getaddrinfo()
will fail on Windows 10.
It makes sense to use requirejs with angularjs if you plan on lazy loading controllers and directives etc, while also combining multiple lazy dependencies into single script files for much faster lazy loading. RequireJS has an optimisation tool that makes the combining easy. See http://ify.io/using-requirejs-with-optimisation-for-lazy-loading-angularjs-artefacts/
when you pass an object within curly braces as an argument to a function with one parameter , you're assigning this object to a variable which is the parameter in this case
In case you want to be on the safe side, I recommend to use getopts.
Here is a small example:
while getopts "x:c" opt; do
case $opt in
c)
echo "-$opt was triggered, deploy to ci account" >&2
DEPLOY_CI_ACCT="true"
;;
x)
echo "-$opt was triggered, Parameter: $OPTARG" >&2
CMD_TO_EXEC=${OPTARG}
;;
\?)
echo "Invalid option: -$OPTARG" >&2
Usage
exit 1
;;
:)
echo "Option -$OPTARG requires an argument." >&2
Usage
exit 1
;;
esac
done
see more details here for example http://wiki.bash-hackers.org/howto/getopts_tutorial
To shutdown memcache daemon:
sudo service memcached stop
To start memcached daemon:
sudo service memcached start
Restart memcached server:
sudo service memcached restart
You can see if Memcache is currently runing:
sudo ps -e | grep memcached
And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it:
netstat -ap | grep TheChosenPort#
netstat -ap | grep 11211
For some Linuxes you need to change your commands like:
sudo /etc/init.d/memcached start
sudo /etc/init.d/memcached restart
sudo /etc/init.d/memcached stop
Source size is not really a sensible thing to measure. For example, the following shell script:
cat foobar
is much shorter than either its Python or C++ equivalents.
UINavigationBar *nbar = self.navigationController.navigationBar;
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
//iOS 7
nbar.barTintColor = [UIColor blueColor]; // bar color
//or custom color
//[UIColor colorWithRed:19.0/255.0 green:86.0/255.0 blue:138.0/255.0 alpha:1];
nbar.navigationBar.translucent = NO;
nbar.tintColor = [UIColor blueColor]; //bar button item color
} else {
//ios 4,5,6
nbar.tintColor = [UIColor whiteColor];
//or custom color
//[UIColor colorWithRed:19.0/255.0 green:86.0/255.0 blue:138.0/255.0 alpha:1];
}
It is not possible directly with S3, but you can create a Cloud Front distribution from you bucket. Then go to certificate manager and request a certificate. Amazon gives them for free. Ones you have successfully confirmed the certification, assign it to your Cloud Front distribution. Also remember to set the rule to re-direct http to https.
I'm hosting couple of static websites on Amazon S3, like my personal website to which I have assigned the SSL certificate as they have the Cloud Front distribution.
You can execute it same as SQL query. first, build your command/Expression and store in a variable and execute/invoke.
$command = ".\yourExternalScriptFile.ps1" + " -param1 '$paramValue'"
It is pretty forward, I don't think it needs explanations. So all set to execute your command now,
Invoke-Expression $command
I would recommend catching the exception here
np.log
is ln
, whereas np.log10
is your standard base 10 log.
Relevant documentation:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log10.html
It is very easy and simple setting problem that can be fixed in 5 seconds by following these steps
To allow you to save changes after you alter table, Please follow these steps for your sql setting:
You need to provide a candidate for autowire. That means that an instance of PasswordHint must be known to spring in a way that it can guess that it must reference it.
Please provide the class head of PasswordHint and/or the spring bean definition of that class for further assistance.
Try changing the name of
PasswordHintAction action;
to
PasswordHintAction passwordHintAction;
so that it matches the bean definition.
On ubuntu you can add this PPA Repository and use it to install python 3.7: https://launchpad.net/~jonathonf/+archive/ubuntu/python-3.7
Or a different PPA that provides several Python versions is Deadsnakes: https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
See also here: https://askubuntu.com/questions/865554/how-do-i-install-python-3-6-using-apt-get (I know it says 3.6 in the url, but the deadsnakes ppa also contains 3.7 so you can use it for 3.7 just the same)
If you want "official" you'd have to install it from the sources from the site, get the code (which you already downloaded) and do this:
tar -xf Python-3.7.0.tar.xz
cd Python-3.7.0
./configure
make
sudo make install <-- sudo is required.
This might take a while
I suspect that the problem lies in the fact that you are calling your state setter immediately inside the function component body, which forces React to re-invoke your function again, with the same props, which ends up calling the state setter again, which triggers React to call your function again.... and so on.
const SingInContainer = ({ message, variant}) => {
const [open, setSnackBarState] = useState(false);
const handleClose = (reason) => {
if (reason === 'clickaway') {
return;
}
setSnackBarState(false)
};
if (variant) {
setSnackBarState(true); // HERE BE DRAGONS
}
return (
<div>
<SnackBar
open={open}
handleClose={handleClose}
variant={variant}
message={message}
/>
<SignInForm/>
</div>
)
}
Instead, I recommend you just conditionally set the default value for the state property using a ternary, so you end up with:
const SingInContainer = ({ message, variant}) => {
const [open, setSnackBarState] = useState(variant ? true : false);
// or useState(!!variant);
// or useState(Boolean(variant));
const handleClose = (reason) => {
if (reason === 'clickaway') {
return;
}
setSnackBarState(false)
};
return (
<div>
<SnackBar
open={open}
handleClose={handleClose}
variant={variant}
message={message}
/>
<SignInForm/>
</div>
)
}
See this CodeSandbox.io demo for a comprehensive demo of it working, plus the broken component you had, and you can toggle between the two.
Both are of same concept but in atomic boolean it will provide atomicity to the operation in case the cpu switch happens in between.
The problem may be caused by the order of operation. If you modified the .gitignore first, then git rm --cached xxx,you may have to continue to encounter this problem.
Correct solution:
Order invariant!
The .gitignore reload after modification!
If you only want the filenames and also want any files that have been added (A).
svn st | grep ^[AM] | cut -c9-
Note: The first 7 columns are each one character wide followed by a space then the filename.
If you really want to use a set:
String[] strArray = {"foo", "foo", "bar"};
Set<String> mySet = new HashSet<String>(Arrays.asList(strArray));
System.out.println(mySet);
output:
[foo, bar]
No, there is no way in simple HTML. Javascript might be your only solution at this time..
Loop through all checkboxes in javascript and set them to unchecked:
var checkboxes = document.getElementsByTagName('input');
for (var i=0; i<checkboxes.length; i++) {
if (checkboxes[i].type == 'checkbox') {
checkboxes[i].checked = false;
}
}
wrap it up in a onload listener and you should be fine then :)
There is a special module: http://wiki.nginx.org/NginxHttpHeadersMoreModule
This module allows you to add, set, or clear any output or input header that you specify.
This is an enhanced version of the standard headers module because it provides more utilities like resetting or clearing "builtin headers" like
Content-Type
,Content-Length
, andServer
.It also allows you to specify an optional HTTP status code criteria using the
-s
option and an optional content type criteria using the-t
option while modifying the output headers with the more_set_headers and more_clear_headers directives...
Check this Spring 3 WebMVC - Optional Path Variables. It shows an article of making an extension to AntPathMatcher to enable optional path variables and might be of help. All credits to Sebastian Herold for posting the article.
The easiest way is:
select top 1 CR
from table t
order by len(CR) desc
Note that this will only return one value if there are multiple with the same longest length.
There's no need for extra css the .btn-group-justified
class does this.
You have to add this to the parent element and then wrap each btn element in a div with .btn-group like this
<div class="form-group">
<div class="btn-group btn-group-justified">
<div class="btn-group">
<button type="submit" id="like" class="btn btn-lg btn-success ">Like</button>
</div>
<div class="btn-group">
<button type="submit" id="nope" class="btn btn-lg btn-danger ">Nope</button>
</div>
</div>
</div>
INSERT INTO destination_table (
Field_1,
Field_2,
Field_3)
SELECT Field_1,
Field_2,
Field_3
FROM source_table;
BUT this is a BAD MYSQL
Do this instead:
drop the destination table: DROP DESTINATION_TABLE;
CREATE TABLE DESTINATION_TABLE AS (SELECT * FROM SOURCE_TABLE);
You can truncate the date part:
select * from table1 where trunc(field1) = to_date('2012-01-01', 'YYYY-MM-DD')
The trouble with this approach is that any index on field1
wouldn't be used due to the function call.
Alternatively (and more index friendly)
select * from table1
where field1 >= to_timestamp('2012-01-01', 'YYYY-MM-DD')
and field1 < to_timestamp('2012-01-02', 'YYYY-MM-DD')
You have empty $_POST
. If your web-server wants see data in json-format you need to read the raw input and then parse it with JSON decode.
You need something like that:
$json = file_get_contents('php://input');
$obj = json_decode($json);
Also you have wrong code for testing JSON-communication...
CURLOPT_POSTFIELDS
tells curl
to encode your parameters as application/x-www-form-urlencoded
. You need JSON-string here.
UPDATE
Your php code for test page should be like that:
$data_string = json_encode($data);
$ch = curl_init('http://webservice.local/');
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($data_string))
);
$result = curl_exec($ch);
$result = json_decode($result);
var_dump($result);
Also on your web-service page you should remove one of the lines header('Content-type: application/json');
. It must be called only once.
While @pritam kumar gives a good overview the 5th point is not true.
Persistence Context can be either Transaction Scoped-- the Persistence Context 'lives' for the length of the transaction, or Extended-- the Persistence Context spans multiple transactions.
https://blogs.oracle.com/carolmcdonald/entry/jpa_caching
JPA's EntityManager and Hibernate's Session offer an extended Persistence Context.
since your form has a field called 'q', leaving it blank still sends an empty string.
try
if 'q' in request.GET and request.GET['q'] != "" :
message
else
error message
This is part of UIDevice as of iOS 3.2, e.g.:
[UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad
On php 5.3.0 and later version you dont need to specially install mysqli on windows. Rather follow simple steps as shown below.
Locate php.ini file [ if not there it means you have not copied php.ini-development or php.ini-production file as php.ini to make your configurations ]
There are 2 things to be done 1. Uncomment and set right path to extension_dir = "ext" Basically set the path where you find ext folder in php even if its in same folder from where you are running php-cgi.ex
Note: uncommenting in this php.ini file is by removing starting ; from the line.
If you pass only vectors to cbind()
it creates a matrix, not a dataframe. Read ?data.frame
.
One of the nice things about the syntax is that you can be sure that a CREATE OR REPLACE
will never cause you to lose data (the most you will lose is code, which hopefully you'll have stored in source control somewhere).
The equivalent syntax for tables is ALTER, which means you have to explicitly enumerate the exact changes that are required.
EDIT: By the way, if you need to do a DROP + CREATE in a script, and you don't care for the spurious "object does not exist" errors (when the DROP doesn't find the table), you can do this:
BEGIN
EXECUTE IMMEDIATE 'DROP TABLE owner.mytable';
EXCEPTION
WHEN OTHERS THEN
IF sqlcode != -0942 THEN RAISE; END IF;
END;
/
The dangling images are ghosts from the previous builds and pulls, simply delete them with : docker rmi $(docker images -f "dangling=true" -q)
Use DATE()
function:
select * from follow_queue group by DATE(follow_date)
We can Access SuperClass members using super keyword
If your method overrides one of its superclass's methods, you can invoke the overridden method through the use of the keyword super
. You can also use super to refer to a hidden field (although hiding fields is discouraged). Consider this class, Superclass:
public class Superclass {
public void printMethod() {
System.out.println("Printed in Superclass.");
}
}
// Here is a subclass, called Subclass, that overrides printMethod()
:
public class Subclass extends Superclass {
// overrides printMethod in Superclass
public void printMethod() {
super.printMethod();
System.out.println("Printed in Subclass");
}
public static void main(String[] args) {
Subclass s = new Subclass();
s.printMethod();
}
}
Within Subclass, the simple name printMethod()
refers to the one declared in Subclass, which overrides the one in Superclass. So, to refer to printMethod()
inherited from Superclass, Subclass must use a qualified name, using super as shown. Compiling and executing Subclass prints the following:
Printed in Superclass.
Printed in Subclass
If you are using Bootstrap is as simple as this:
<div [class.hidden]="myBooleanValue"></div>
Just in case this helps anyone else:
If you're going to be adding the TimeOut
directive, and your website uses multiple vhosts (eg. one for port 80, one for port 443), then don't forget to add the directive to all of them!
i found i had to do something akin to
=(countifs (A1:A196,"yes", j1:j196, "agree") + (countifs (A1:A196,"no", j1:j196, "agree"))
Add the image to Your project by clicking File -> "Add Files to ...".
Then choose the image in ImageView properties (Utilities -> Attributes Inspector).
Yes. Internally it is implemented as open hashing based on a primitive polynomial over Z/2 (source).
It's impossible to say without seeing your actual code. Likely the reason is a code path through your function that doesn't execute a return
statement. When the code goes down that path, the function ends with no value returned, and so returns None
.
Updated: It sounds like your code looks like this:
def b(self, p, data):
current = p
if current.data == data:
return True
elif current.data == 1:
return False
else:
self.b(current.next, data)
That else clause is your None
path. You need to return the value that the recursive call returns:
else:
return self.b(current.next, data)
BTW: using recursion for iterative programs like this is not a good idea in Python. Use iteration instead. Also, you have no clear termination condition.
Maybe I misunderstood your question, but wouldn't it be simpler if you copy/move the files from A to the git repo B and add the needed ones with git add?
UPDATE: From the git doc:
Cloning into an existing directory is only allowed if the directory is empty.
There is a lot of possibilities for LaFs :
$cRepo = $em->getRepository('KaleLocationBundle:Country');
// Leave the first array blank
$countries = $cRepo->findBy(array(), array('name'=>'asc'));
option 2 is a bad idea. It will result in something called shadowing; Basically you have two different "MyInt" members, one in the mother, and the other in the daughter. The problem with this, is that methods that are implemented in the mother will reference the mother's "MyInt" while methods implemented in the daughter will reference the daughter's "MyInt". this can cause some serious readability issues, and confusion later down the line.
Personally, I think the best option is 3; because it provides a clear centralized value, and can be referenced internally by children without the hassle of defining their own fields -- which is the problem with option 1.
You can use map
function and pythons inbuilt sum()
function. It simplifies the solution. And reduces the complexity.
a=map(int,raw_input().split())
sum(a)
Done!
Here's a handy site to test out your headers. You can see your browser headers and also use cURL to reflect back whatever headers you send.
For example, you can validate the content negotiation like this.
This Accept
header prefers plain text so returns in that format:-
$ curl -H "Accept: application/json;q=0.9,text/plain" http://gethttp.info/Accept
application/json;q=0.9,text/plain
Whereas this one prefers JSON and so returns in that format:-
$ curl -H "Accept: application/json,text/*;q=0.99" http://gethttp.info/Accept
{
"Accept": "application/json,text/*;q=0.99"
}
This works cross-browser, provides more accessibility and comes with less markup. ditch the div. Wrap the label
label{
display: block;
height: 35px;
line-height: 35px;
border: 1px solid #000;
}
input{margin-top:15px; height:20px}
<label for="name">Name: <input type="text" id="name" /></label>
import datetime
mydate = datetime.datetime.now()
mydate.strftime("%B")
Returns: December
Some more info on the Python doc website
[EDIT : great comment from @GiriB] You can also use %b
which returns the short notation for month name.
mydate.strftime("%b")
For the example above, it would return Dec
.
Now, back to your questions:
Q1. Does this sequence generator make use of the database's increasing numeric value generating capability or generates the number on its own?
By using the GenerationType.SEQUENCE
strategy on the @GeneratedValue
annotation, the JPA provider will try to use a database sequence object of the underlying database that supports this feature (e.g., Oracle, SQL Server, PostgreSQL, MariaDB).
If you are using MySQL, which doesn't support database sequence objects, then Hibernate is going to fall back to using the GenerationType.TABLE
instead, which is undesirable since the TABLE generation performs badly.
So, don't use the GenerationType.SEQUENCE
strategy with MySQL.
Q2. If JPA uses a database auto-increment feature, then will it work with datastores that don't have auto-increment feature?
I assume you are talking about the GenerationType.IDENTITY
when you say database auto-increment feature
.
To use an AUTO_INCREMENT
or IDENTITY
column, you need to use the GenerationType.IDENTITY
strategy on the @GeneratedValue
annotation.
Q3. If JPA generates numeric value on its own, then how does the JPA implementation know which value to generate next? Does it consult with the database first to see what value was stored last in order to generate the value (last + 1)?
The only time when the JPA provider generates values on its own is when you are using the sequence-based optimizers, like:
These optimizers are meat to reduce the number of database sequence calls, so they multiply the number of identifier values that can be generated using a single database sequence call.
To avoid conflicts between Hibernate identifier optimizers and other 3rd-party clients, you should use pooled
or pooled-lo
instead of hi/lo
. Even if you are using a legacy application that was designed to use hi/lo, you can migrate to the pooled
or pooled-lo
optimizers.
Q4. Please also shed some light on
sequenceName
andallocationSize
properties of@SequenceGenerator
annotation.
The sequenceName
attribute defines the database sequence object to be used to generate the identifier values. IT's the object you created using the CREATE SEQUENCE
DDL statement.
So, if you provide this mapping:
@Id
@GeneratedValue(
strategy = GenerationType.SEQUENCE,
generator = "seq_post"
)
@SequenceGenerator(
name = "seq_post"
)
private Long id;
Hibernate is going to use the seq_post
database object to generate the identifier values:
SELECT nextval('hibernate_sequence')
The allocationSize
defines the identifier value multiplier, and if you provide a value that's greater than 1, then Hibernate is going to use the pooled
optimizer, to reduce the number of database sequence calls.
So, if you provide this mapping:
@Id
@GeneratedValue(
strategy = GenerationType.SEQUENCE,
generator = "seq_post"
)
@SequenceGenerator(
name = "seq_post",
allocationSize = 5
)
private Long id;
Then, when you persist 5 entities:
for (int i = 1; i <= 5; i++) {
entityManager.persist(
new Post().setTitle(
String.format(
"High-Performance Java Persistence, Part %d",
i
)
)
);
}
Only 2 database sequence calls will be executed, instead of 5:
SELECT nextval('hibernate_sequence')
SELECT nextval('hibernate_sequence')
INSERT INTO post (title, id)
VALUES ('High-Performance Java Persistence, Part 1', 1)
INSERT INTO post (title, id)
VALUES ('High-Performance Java Persistence, Part 2', 2)
INSERT INTO post (title, id)
VALUES ('High-Performance Java Persistence, Part 3', 3)
INSERT INTO post (title, id)
VALUES ('High-Performance Java Persistence, Part 4', 4)
INSERT INTO post (title, id)
VALUES ('High-Performance Java Persistence, Part 5', 5)
Here is the XSLT function which will work similar to the String.Replace() function of C#.
This template has the 3 Parameters as below
text :- your main string
replace :- the string which you want to replace
by :- the string which will reply by new string
Below are the Template
<xsl:template name="string-replace-all">
<xsl:param name="text" />
<xsl:param name="replace" />
<xsl:param name="by" />
<xsl:choose>
<xsl:when test="contains($text, $replace)">
<xsl:value-of select="substring-before($text,$replace)" />
<xsl:value-of select="$by" />
<xsl:call-template name="string-replace-all">
<xsl:with-param name="text" select="substring-after($text,$replace)" />
<xsl:with-param name="replace" select="$replace" />
<xsl:with-param name="by" select="$by" />
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$text" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
Below sample shows how to call it
<xsl:variable name="myVariable ">
<xsl:call-template name="string-replace-all">
<xsl:with-param name="text" select="'This is a {old} text'" />
<xsl:with-param name="replace" select="'{old}'" />
<xsl:with-param name="by" select="'New'" />
</xsl:call-template>
</xsl:variable>
You can also refer the below URL for the details.
Uninstall the plugins first. And then try this. This uninstaller worked like a charm (I didn't even uninstall 2015 myself, it did everything on its own)!
The syntax is changed in new 3.x releases rather than old 2.x releases: for example in python 2.x you can write: print "Hi new world" but in the new 3.x release you need to use the new syntax and write it like this: print("Hi new world")
check the documentation: http://docs.python.org/3.3/library/functions.html?highlight=print#print
One other possible implementation, more cumbersome than the .bind() solution, but one that helps to make the point that expect() requires a function that provides a this
context to the covered function, you can use a call()
, e.g.,
expect(function() {model.get.call(model, 'z');}).to.throw('...');
First, convert the timestamp using the built-in eloquent functionality, as described in this answer.
Then you can just use Carbon's min()
or max()
function for comparison. For example:
$dt1 = Carbon::create(2012, 1, 1, 0, 0, 0);
$dt2 = Carbon::create(2014, 1, 30, 0, 0, 0);
echo $dt1->min($dt2);
This will echo
the lesser of the two dates, which in this case is $dt1
.
You can launch any command line program using the Process class, and set the StandardOutput property of the Process instance with a stream reader you create (either based on a string or a memory location). After the process completes, you can then do whatever diff you need to on that stream.
Also worth noting, for people who find this in their searches, is this...
<div ng-repeat="button in buttons" class="bb-button" ng-click="goTo(button.path)">
<div class="bb-button-label">{{ button.label }}</div>
<div class="bb-button-description">{{ button.description }}</div>
</div>
Note the value of ng-click
. The parameter passed to goTo()
is a string from a property of the binding object (the button
), but it is not wrapped in quotes. Looks like AngularJS handles that for us. I got hung up on that for a few minutes.
head
works too:
head -c 100 file # returns the first 100 bytes in the file
..will extract the first 100 bytes and return them.
What's nice about using head
for this is that the syntax for tail
matches:
tail -c 100 file # returns the last 100 bytes in the file
You can combine these to get ranges of bytes. For example, to get the second 100 bytes from a file, read the first 200 with head
and use tail to get the last 100:
head -c 200 file | tail -c 100
Update angular-in-memory-web-api version. The default angular-in-memory-web-api version installed during the tutorial angular-tour-of-heroes was 0.4. It worked like a charm in my case. (Using Angular 7 with RxJS 6)
npm i [email protected]
Check This:
DECLARE
@_month TINYINT = 5,
@_year SMALLINT = 2020,
@date_ref DATETIME = NULL
IF @_year IS NULL
SET @date_ref = GETDATE() - 430
ELSE
BEGIN
SELECT @date_ref = CAST ( CAST ( @_year AS VARCHAR (4))
+
CASE
WHEN @_month < 10 THEN '0' + CAST ( @_month AS VARCHAR(1))
ELSE CAST ( @_month AS VARCHAR(2))
END
+
'01' AS DATETIME )
END
This is stupid but for future reference. I did put all my code in:
$(document).ready(function () {
//your jQuery function
});
But still it wasn't working and it was returning undefined
value.
I check my HTML DOM
<input id="username" placeholder="Username"></input>
and I realised that I was referencing it wrong in jQuery:
var user_name = $('#user_name').val();
Making it:
var user_name = $('#username').val();
solved my problem.
So it's always better to check your previous code.
I came with same question but after google, I found there is no big difference :)
From Github
If you wish to create both an HTTP and HTTPS server you may do so with the "http" and "https" modules as shown here.
/**
* Listen for connections.
*
* A node `http.Server` is returned, with this
* application (which is a `Function`) as its
* callback. If you wish to create both an HTTP
* and HTTPS server you may do so with the "http"
* and "https" modules as shown here:
*
* var http = require('http')
* , https = require('https')
* , express = require('express')
* , app = express();
*
* http.createServer(app).listen(80);
* https.createServer({ ... }, app).listen(443);
*
* @return {http.Server}
* @api public
*/
app.listen = function(){
var server = http.createServer(this);
return server.listen.apply(server, arguments);
};
Also if you want to work with socket.io see their example
See this
I prefer app.listen()
:)
TEXT
is used for large pieces of string data. If the length of the field exceeed a certain threshold, the text is stored out of row.
VARCHAR
is always stored in row and has a limit of 8000 characters. If you try to create a VARCHAR(x)
, where x > 8000, you get an error:
Server: Msg 131, Level 15, State 3, Line 1
The size () given to the type ‘varchar’ exceeds the maximum allowed for any data type (8000)
These length limitations do not concern VARCHAR(MAX)
in SQL Server 2005, which may be stored out of row, just like TEXT
.
Note that MAX
is not a kind of constant here, VARCHAR
and VARCHAR(MAX)
are very different types, the latter being very close to TEXT
.
In prior versions of SQL Server you could not access the TEXT
directly, you only could get a TEXTPTR
and use it in READTEXT
and WRITETEXT
functions.
In SQL Server 2005 you can directly access TEXT
columns (though you still need an explicit cast to VARCHAR
to assign a value for them).
TEXT
is good:
VARCHAR
is good:
By selecting here I mean issuing any queries that return the value of the column.
By searching here I mean issuing any queries whose result depends on the value of the TEXT
or VARCHAR
column. This includes using it in any JOIN
or WHERE
condition.
As the TEXT
is stored out of row, the queries not involving the TEXT
column are usually faster.
Some examples of what TEXT
is good for:
Some examples of what VARCHAR
is good for:
As a rule of thumb, if you ever need you text value to exceed 200 characters AND do not use join on this column, use TEXT
.
Otherwise use VARCHAR
.
P.S. The same applies to UNICODE
enabled NTEXT
and NVARCHAR
as well, which you should use for examples above.
P.P.S. The same applies to VARCHAR(MAX)
and NVARCHAR(MAX)
that SQL Server 2005+ uses instead of TEXT
and NTEXT
. You'll need to enable large value types out of row
for them with sp_tableoption
if you want them to be always stored out of row.
As mentioned above and here, TEXT
is going to be deprecated in future releases:
The
text in row
option will be removed in a future version of SQL Server. Avoid using this option in new development work, and plan to modify applications that currently usetext in row
. We recommend that you store large data by using thevarchar(max)
,nvarchar(max)
, orvarbinary(max)
data types. To control in-row and out-of-row behavior of these data types, use thelarge value types out of row
option.
This project on github looks promising:
https://github.com/eligrey/FileSaver.js
FileSaver.js implements the W3C saveAs() FileSaver interface in browsers that do not natively support it.
Also have a look at the demo here:
You'll need to consider this in context of the application. In general, you should design an application, not a database (the database simply being part of the application).
Consider how your application should respond to various cases.
The default action is to restrict (i.e. not permit) the operation, which is normally what you want as it prevents stupid programming errors. However, on DELETE CASCADE can also be useful. It really depends on your application and how you intend to delete particular objects.
Personally, I'd use InnoDB because it doesn't trash your data (c.f. MyISAM, which does), rather than because it has FK constraints.
If you prefer not to use exceptions as part of the logic, you might try this:
class String
def numeric?
!!(self =~ /^-?\d+(\.\d*)?$/)
end
end
Or, if you want it to work across all object classes, replace class String
with class Object
an convert self to a string: !!(self.to_s =~ /^-?\d+(\.\d*)?$/)
I now this this is not an image made by me, but this image can help a lot...
So, here is an little app that I created so you can play with the values
function parseColor(input) {
input = input.trim();
if (input.length > 128) {
input = input.slice(0, 128);
}
if (input.charAt(0) === "#") {
input = input.slice(1);
}
input = input.replace(/[^0-9A-Fa-f]/g, "0");
while (input.length === 0 || input.length % 3 > 0) {
input += "0";
}
var r = input.slice(0, input.length / 3);
var g = input.slice(input.length / 3, input.length * 2 / 3);
var b = input.slice(input.length * 2 / 3);
if (r.length > 8) {
r = r.slice(-8);
g = g.slice(-8);
b = b.slice(-8);
}
while (r.length > 2 && r.charAt(0) === "0" && g.charAt(0) === "0" && b.charAt(0) === "0") {
r = r.slice(1);
g = g.slice(1);
b = b.slice(1);
}
if (r.length > 2) {
r = r.slice(0, 2);
g = g.slice(0, 2);
b = b.slice(0, 2);
}
return "#" + r.padStart(2, "0") + g.padStart(2, "0") + b.padStart(2, "0");
}
$(function() {
$("#input").on("change", function() {
var input = $(this).val();
var color = parseColor(input);
var $cells = $("#result tbody td");
$cells.eq(0).attr("bgcolor", input);
$cells.eq(1).attr("bgcolor", color);
var color1 = $cells.eq(0).css("background-color");
var color2 = $cells.eq(1).css("background-color");
$cells.eq(2).empty().append("background-color: " + input, "<br>", "getComputedStyle: " + color1);
$cells.eq(3).empty().append("background-color: " + color, "<br>", "getComputedStyle: " + color2);
});
});
_x000D_
* { font: monospace; }
input { width: 100hv; }
table { table-layout: fixed; width: 100%; }
input {border: 1px solid black;border-radius: 5px;outline:none;padding: 10px; }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<p><input id="input" placeholder="Enter color e.g. demofothedayischur000! or ffffssssrrrddswww!"></p><details>
<summary>Color examples (drag-and-drop)</summary>
Try this colors:<br>
Batato<br>
Muatre!<br>
fsdyelow"<br>
000meandthis<br>
!!!!!<br>
entrcolor<br>
yellowofthe!<br>
!!!me!!!you!!!aregre!:;H<br>
!"#$%&/()=<br>
/()=??»»<br>
thsdem<br></details>
<details>
<summary>
Or.... Want a big example?
</summary>
Here it goes:<br>
Batato Muatre! dtexbtfe dodx42 f 1dzxwq lorem ip os dh4huryx nyxze eimqdmuezo fsdyelow" 000meandthis !!!!! entrcolor yellowofthe! !!!me!!!you!!!aregre!:;H !"#$%&/()= /()=??»» thsdem
</details>
<table id="result">
<thead>
<tr>
<th>Left Color</th>
<th>Right Color</th>
</tr>
</thead>
<tbody>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</tbody>
</table>
_x000D_
[str(x) for x in EmployeeList]
would do a conversion, but it would fail if the unicode string characters do not lie in the ascii range.
>>> EmployeeList = [u'1001', u'Karick', u'14-12-2020', u'1$']
>>> [str(x) for x in EmployeeList]
['1001', 'Karick', '14-12-2020', '1$']
>>> EmployeeList = [u'1001', u'????', u'14-12-2020', u'1$']
>>> [str(x) for x in EmployeeList]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-3: ordinal not in range(128)
Follow these Steps:
1: Enter:
git reflog show
This will display all the Commit history, you need to select the sha-1 that has the last commit that you want to get back
2: create a branch name with the Sha-1 ID you selected eg: 8c87714
git branch your-branch-name 8c87714
Granted, PreparedStatement
will make your code better, but to answer your question you need to tell the DBMS the format of your string representation of the Date. In Oracle (you don't name your database vendor) a string date is converted to Date
using the TO_DATE()
function:
INSERT INTO TABLE_NAME(
date_column
)values(
TO_DATE('06/06/2006', 'mm/dd/yyyy')
)
In this model, you have publishers who will do some logic and publish an "event."
Publishers will then send out their event only to subscribers who have subscribed to receive the specific event.
In C#, any object can publish a set of events to which other applications can subscribe.
When the publishing class raises an event, all the subscribed applications are notified.
The following figure shows this mechanism.
Simplest Example possible on Events and Delegates in C#:
code is self explanatory, Also I've added the comments to clear out the code.
using System;
public class Publisher //main publisher class which will invoke methods of all subscriber classes
{
public delegate void TickHandler(Publisher m, EventArgs e); //declaring a delegate
public TickHandler Tick; //creating an object of delegate
public EventArgs e = null; //set 2nd paramter empty
public void Start() //starting point of thread
{
while (true)
{
System.Threading.Thread.Sleep(300);
if (Tick != null) //check if delegate object points to any listener classes method
{
Tick(this, e); //if it points i.e. not null then invoke that method!
}
}
}
}
public class Subscriber1 //1st subscriber class
{
public void Subscribe(Publisher m) //get the object of pubisher class
{
m.Tick += HeardIt; //attach listener class method to publisher class delegate object
}
private void HeardIt(Publisher m, EventArgs e) //subscriber class method
{
System.Console.WriteLine("Heard It by Listener");
}
}
public class Subscriber2 //2nd subscriber class
{
public void Subscribe2(Publisher m) //get the object of pubisher class
{
m.Tick += HeardIt; //attach listener class method to publisher class delegate object
}
private void HeardIt(Publisher m, EventArgs e) //subscriber class method
{
System.Console.WriteLine("Heard It by Listener2");
}
}
class Test
{
static void Main()
{
Publisher m = new Publisher(); //create an object of publisher class which will later be passed on subscriber classes
Subscriber1 l = new Subscriber1(); //create object of 1st subscriber class
Subscriber2 l2 = new Subscriber2(); //create object of 2nd subscriber class
l.Subscribe(m); //we pass object of publisher class to access delegate of publisher class
l2.Subscribe2(m); //we pass object of publisher class to access delegate of publisher class
m.Start(); //starting point of publisher class
}
}
Output:
Heard It by Listener
Heard It by Listener2
Heard It by Listener
Heard It by Listener2
Heard It by Listener . . . (infinite times)
You probably want ANSI color codes. Most *nix terminals support them.
In my case, I have solved this way:
$scope.MyObject = // get from database or other sources;
$scope.MyObject.Date = new Date($scope.MyObject.Date);
and input type date is ok
Arrays in Java have a fixed length that cannot be changed. So Java provides classes that allow you to maintain lists of variable length.
Generally, there is the List<T>
interface, which represents a list of instances of the class T
. The easiest and most widely used implementation is the ArrayList
. Here is an example:
List<String> words = new ArrayList<String>();
words.add("Hello");
words.add("World");
words.add("!");
List.add()
simply appends an element to the list and you can get the size of a list using List.size()
.
You can use jstat, like :
jstat -gc pid
Full docs here : http://docs.oracle.com/javase/7/docs/technotes/tools/share/jstat.html
You can use
android:ellipsize="marquee"
with your textview.
But remember to put focus on the desired textview.
The code commented works as well, just choose which do you prefer
import numpy as np
from PIL import Image
def convert_from_cv2_to_image(img: np.ndarray) -> Image:
# return Image.fromarray(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
return Image.fromarray(img)
def convert_from_image_to_cv2(img: Image) -> np.ndarray:
# return cv2.cvtColor(numpy.array(img), cv2.COLOR_RGB2BGR)
return np.asarray(img)
It seems to be this function
h_url=document.getElementById("u").value;
You can help yourself using some 'console.log' to see what object is Null.
You can try to use the support library function called of ContextCompat.getExternalFilesDirs() :
final File[] appsDir=ContextCompat.getExternalFilesDirs(getActivity(),null);
final ArrayList<File> extRootPaths=new ArrayList<>();
for(final File file : appsDir)
extRootPaths.add(file.getParentFile().getParentFile().getParentFile().getParentFile());
The first one is the primary external storage, and the rest are supposed to be real SD-cards paths.
The reason for the multiple ".getParentFile()" is to go up another folder, since the original path is
.../Android/data/YOUR_APP_PACKAGE_NAME/files/
EDIT: here's a more comprehensive way I've created, to get the sd-cards paths:
/**
* returns a list of all available sd cards paths, or null if not found.
*
* @param includePrimaryExternalStorage set to true if you wish to also include the path of the primary external storage
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static List<String> getSdCardPaths(final Context context, final boolean includePrimaryExternalStorage)
{
final File[] externalCacheDirs=ContextCompat.getExternalCacheDirs(context);
if(externalCacheDirs==null||externalCacheDirs.length==0)
return null;
if(externalCacheDirs.length==1)
{
if(externalCacheDirs[0]==null)
return null;
final String storageState=EnvironmentCompat.getStorageState(externalCacheDirs[0]);
if(!Environment.MEDIA_MOUNTED.equals(storageState))
return null;
if(!includePrimaryExternalStorage&&VERSION.SDK_INT>=VERSION_CODES.HONEYCOMB&&Environment.isExternalStorageEmulated())
return null;
}
final List<String> result=new ArrayList<>();
if(includePrimaryExternalStorage||externalCacheDirs.length==1)
result.add(getRootOfInnerSdCardFolder(externalCacheDirs[0]));
for(int i=1;i<externalCacheDirs.length;++i)
{
final File file=externalCacheDirs[i];
if(file==null)
continue;
final String storageState=EnvironmentCompat.getStorageState(file);
if(Environment.MEDIA_MOUNTED.equals(storageState))
result.add(getRootOfInnerSdCardFolder(externalCacheDirs[i]));
}
if(result.isEmpty())
return null;
return result;
}
/** Given any file/folder inside an sd card, this will return the path of the sd card */
private static String getRootOfInnerSdCardFolder(File file)
{
if(file==null)
return null;
final long totalSpace=file.getTotalSpace();
while(true)
{
final File parentFile=file.getParentFile();
if(parentFile==null||parentFile.getTotalSpace()!=totalSpace||!parentFile.canRead())
return file.getAbsolutePath();
file=parentFile;
}
}
In my view, "Explicit is always better than implicit." Because at some point, you may got confused with this increments statement y+ = x++ + ++y
. A good programmer always makes his or her code more readable.
You can do that after you added the 'n' column into your df as follows.
import pandas as pd
df = pd.DataFrame({'l':['a','b','c','d'], 'v':[1,2,1,2]})
df['n'] = 0
df
l v n
0 a 1 0
1 b 2 0
2 c 1 0
3 d 2 0
# here you can add the below code and it should work.
df = df[list('nlv')]
df
n l v
0 0 a 1
1 0 b 2
2 0 c 1
3 0 d 2
However, if you have words in your columns names instead of letters. It should include two brackets around your column names.
import pandas as pd
df = pd.DataFrame({'Upper':['a','b','c','d'], 'Lower':[1,2,1,2]})
df['Net'] = 0
df['Mid'] = 2
df['Zsore'] = 2
df
Upper Lower Net Mid Zsore
0 a 1 0 2 2
1 b 2 0 2 2
2 c 1 0 2 2
3 d 2 0 2 2
# here you can add below line and it should work
df = df[list(('Mid','Upper', 'Lower', 'Net','Zsore'))]
df
Mid Upper Lower Net Zsore
0 2 a 1 0 2
1 2 b 2 0 2
2 2 c 1 0 2
3 2 d 2 0 2
You can do
source ./python_env/bin/activate
or just go to the directory
cd /python_env/bin/
and then
source ./activate
Good Luck.
openssl genrsa -out mykey.pem 1024
will actually produce a public - private key pair. The pair is stored in the generated mykey.pem
file.
openssl rsa -in mykey.pem -pubout > mykey.pub
will extract the public key and print that out. Here is a link to a page that describes this better.
EDIT: Check the examples section here. To just output the public part of a private key:
openssl rsa -in key.pem -pubout -out pubkey.pem
To get a usable public key for SSH purposes, use ssh-keygen:
ssh-keygen -y -f key.pem > key.pub
you can also add animation in your activity, in onCreate method like below becasue overridePendingTransition is not working with some mobile, or it depends on device settings...
View view = findViewById(android.R.id.content);
Animation mLoadAnimation = AnimationUtils.loadAnimation(getApplicationContext(), android.R.anim.fade_in);
mLoadAnimation.setDuration(2000);
view.startAnimation(mLoadAnimation);
This was pretty well answered over here: How to make a YouTube embedded video a full page width one?
If you add '?rel=0&autoplay=1' to the end of the url in the embed code (like this)
<iframe id="video" src="//www.youtube.com/embed/5iiPC-VGFLU?rel=0&autoplay=1" frameborder="0" allowfullscreen></iframe>
of the video it should play on load. Here's a demo over at jsfiddle.
The Oracle SQL developer
is not supported by the 64bit JDK
.
To resolve this issue:
32bit JDK (x86)
32bit JDK
).sqldeveloper.conf
, which can be found under {ORACLE_HOME}\sqldeveloper\sqldeveloper\bin\sqldeveloper.conf
SetJavaHome
is pointing to your 32bit JDK
.For example:
SetJavaHome C:\Program Files (x86) \Java\jdk1.6.0_13
You can use from the pd.to_numeric(s)
pom.xml
as -<project>
....
<build>
<resources>
<resource>
<directory>src/main/config</directory>
</resource>
</resources>
...
</build>
...
</project>
Without external tools.This is a self-compiled bat/.net hybrid (should be saved as .BAT
) that can be used on any system that have installed .net framework (it's a rare thing to see an windows without .NET framework even for the oldest XP/2003 installations) . It uses jscript.net compiler to create an exe capable to print strings with different background/foreground color only for the current line.
@if (@X)==(@Y) @end /* JScript comment
@echo off
setlocal
for /f "tokens=* delims=" %%v in ('dir /b /s /a:-d /o:-n "%SystemRoot%\Microsoft.NET\Framework\*jsc.exe"') do (
set "jsc=%%v"
)
if not exist "%~n0.exe" (
"%jsc%" /nologo /out:"%~n0.exe" "%~dpsfnx0"
)
%~n0.exe %*
endlocal & exit /b %errorlevel%
*/
import System;
var arguments:String[] = Environment.GetCommandLineArgs();
var newLine = false;
var output = "";
var foregroundColor = Console.ForegroundColor;
var backgroundColor = Console.BackgroundColor;
var evaluate = false;
var currentBackground=Console.BackgroundColor;
var currentForeground=Console.ForegroundColor;
//http://stackoverflow.com/a/24294348/388389
var jsEscapes = {
'n': '\n',
'r': '\r',
't': '\t',
'f': '\f',
'v': '\v',
'b': '\b'
};
function decodeJsEscape(_, hex0, hex1, octal, other) {
var hex = hex0 || hex1;
if (hex) { return String.fromCharCode(parseInt(hex, 16)); }
if (octal) { return String.fromCharCode(parseInt(octal, 8)); }
return jsEscapes[other] || other;
}
function decodeJsString(s) {
return s.replace(
// Matches an escape sequence with UTF-16 in group 1, single byte hex in group 2,
// octal in group 3, and arbitrary other single-character escapes in group 4.
/\\(?:u([0-9A-Fa-f]{4})|x([0-9A-Fa-f]{2})|([0-3][0-7]{0,2}|[4-7][0-7]?)|(.))/g,
decodeJsEscape);
}
function printHelp( ) {
print( arguments[0] + " -s string [-f foreground] [-b background] [-n] [-e]" );
print( " " );
print( " string String to be printed" );
print( " foreground Foreground color - a " );
print( " number between 0 and 15." );
print( " background Background color - a " );
print( " number between 0 and 15." );
print( " -n Indicates if a new line should" );
print( " be written at the end of the ");
print( " string(by default - no)." );
print( " -e Evaluates special character " );
print( " sequences like \\n\\b\\r and etc ");
print( "" );
print( "Colors :" );
for ( var c = 0 ; c < 16 ; c++ ) {
Console.BackgroundColor = c;
Console.Write( " " );
Console.BackgroundColor=currentBackground;
Console.Write( "-"+c );
Console.WriteLine( "" );
}
Console.BackgroundColor=currentBackground;
}
function errorChecker( e:Error ) {
if ( e.message == "Input string was not in a correct format." ) {
print( "the color parameters should be numbers between 0 and 15" );
Environment.Exit( 1 );
} else if (e.message == "Index was outside the bounds of the array.") {
print( "invalid arguments" );
Environment.Exit( 2 );
} else {
print ( "Error Message: " + e.message );
print ( "Error Code: " + ( e.number & 0xFFFF ) );
print ( "Error Name: " + e.name );
Environment.Exit( 666 );
}
}
function numberChecker( i:Int32 ){
if( i > 15 || i < 0 ) {
print("the color parameters should be numbers between 0 and 15");
Environment.Exit(1);
}
}
if ( arguments.length == 1 || arguments[1].toLowerCase() == "-help" || arguments[1].toLowerCase() == "-help" ) {
printHelp();
Environment.Exit(0);
}
for (var arg = 1; arg <= arguments.length-1; arg++ ) {
if ( arguments[arg].toLowerCase() == "-n" ) {
newLine=true;
}
if ( arguments[arg].toLowerCase() == "-e" ) {
evaluate=true;
}
if ( arguments[arg].toLowerCase() == "-s" ) {
output=arguments[arg+1];
}
if ( arguments[arg].toLowerCase() == "-b" ) {
try {
backgroundColor=Int32.Parse( arguments[arg+1] );
} catch(e) {
errorChecker(e);
}
}
if ( arguments[arg].toLowerCase() == "-f" ) {
try {
foregroundColor=Int32.Parse(arguments[arg+1]);
} catch(e) {
errorChecker(e);
}
}
}
Console.BackgroundColor = backgroundColor ;
Console.ForegroundColor = foregroundColor ;
if ( evaluate ) {
output=decodeJsString(output);
}
if ( newLine ) {
Console.WriteLine(output);
} else {
Console.Write(output);
}
Console.BackgroundColor = currentBackground;
Console.ForegroundColor = currentForeground;
Example coloroutput.bat -s "aa\nbb\n\u0025cc" -b 10 -f 3 -n -e
You can also check carlos' color function -> http://www.dostips.com/forum/viewtopic.php?f=3&t=4453
Use the following query:
SELECT * FROM SAMPLE_TABLE ORDER BY ROWID ASC LIMIT 1
Note: Sqlite's row id references are detailed here.
You can do this using the filter()
function:
$(".a").filter(".b")
You can create an async init() {... return this;}
method, then instead do new MyClass().init()
whenever you'd normally just say new MyClass()
.
This is not clean because it relies on everyone who uses your code, and yourself, to always instantiate the object like so. However if you're only using this object in a particular place or two in your code, it could maybe be fine.
A significant problem though occurs because ES has no type system, so if you forget to call it, you've just returned undefined
because the constructor returns nothing. Oops. Much better would be to do something like:
The best thing to do would be:
class AsyncOnlyObject {
constructor() {
}
async init() {
this.someField = await this.calculateStuff();
}
async calculateStuff() {
return 5;
}
}
async function newAsync_AsyncOnlyObject() {
return await new AsyncOnlyObject().init();
}
newAsync_AsyncOnlyObject().then(console.log);
// output: AsyncOnlyObject {someField: 5}
However then you might accidentally do new AsyncOnlyObject, you should probably just create factory function that uses Object.create(AsyncOnlyObject.prototype)
directly:
async function newAsync_AsyncOnlyObject() {
return await Object.create(AsyncOnlyObject.prototype).init();
}
newAsync_AsyncOnlyObject().then(console.log);
// output: AsyncOnlyObject {someField: 5}
However say you want to use this pattern on many objects... you could abstract this as a decorator or something you (verbosely, ugh) call after defining like postProcess_makeAsyncInit(AsyncOnlyObject)
, but here I'm going to use extends
because it sort of fits into subclass semantics (subclasses are parent class + extra, in that they should obey the design contract of the parent class, and may do additional things; an async subclass would be strange if the parent wasn't also async, because it could not be initialized the same way):
class AsyncObject {
constructor() {
throw new Error('classes descended from AsyncObject must be initialized as (await) TheClassName.anew(), rather than new TheClassName()');
}
static async anew(...args) {
var R = Object.create(this.prototype);
R.init(...args);
return R;
}
}
class MyObject extends AsyncObject {
async init(x, y=5) {
this.x = x;
this.y = y;
// bonus: we need not return 'this'
}
}
MyObject.anew('x').then(console.log);
// output: MyObject {x: "x", y: 5}
(do not use in production: I have not thought through complicated scenarios such as whether this is the proper way to write a wrapper for keyword arguments.)