another solution using logging module:
import logging
import sys
log = logging.getLogger('stdxxx')
class StreamLogger(object):
def __init__(self, stream, prefix=''):
self.stream = stream
self.prefix = prefix
self.data = ''
def write(self, data):
self.stream.write(data)
self.stream.flush()
self.data += data
tmp = str(self.data)
if '\x0a' in tmp or '\x0d' in tmp:
tmp = tmp.rstrip('\x0a\x0d')
log.info('%s%s' % (self.prefix, tmp))
self.data = ''
logging.basicConfig(level=logging.INFO,
filename='text.log',
filemode='a')
sys.stdout = StreamLogger(sys.stdout, '[stdout] ')
print 'test for stdout'
I had the same problem. I wanted to have the ability to overwrite an internal configuration file at startup with an external file, similar to the Spring Boot application.properties detection. In my case it's a user.properties file where my applications users are stored.
My requirements:
Load the file from the following locations (in this order)
I came up with the following solution:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.PathResource;
import org.springframework.core.io.Resource;
import java.io.IOException;
import java.util.Properties;
import static java.util.Arrays.stream;
@Configuration
public class PropertiesConfig {
private static final Logger LOG = LoggerFactory.getLogger(PropertiesConfig.class);
private final static String PROPERTIES_FILENAME = "user.properties";
@Value("${properties.location:}")
private String propertiesLocation;
@Bean
Properties userProperties() throws IOException {
final Resource[] possiblePropertiesResources = {
new ClassPathResource(PROPERTIES_FILENAME),
new PathResource("config/" + PROPERTIES_FILENAME),
new PathResource(PROPERTIES_FILENAME),
new PathResource(getCustomPath())
};
// Find the last existing properties location to emulate spring boot application.properties discovery
final Resource propertiesResource = stream(possiblePropertiesResources)
.filter(Resource::exists)
.reduce((previous, current) -> current)
.get();
final Properties userProperties = new Properties();
userProperties.load(propertiesResource.getInputStream());
LOG.info("Using {} as user resource", propertiesResource);
return userProperties;
}
private String getCustomPath() {
return propertiesLocation.endsWith(".properties") ? propertiesLocation : propertiesLocation + PROPERTIES_FILENAME;
}
}
Now the application uses the classpath resource, but checks for a resource at the other given locations too. The last resource which exists will be picked and used. I'm able to start my app with java -jar myapp.jar --properties.location=/directory/myproperties.properties to use an properties location which floats my boat.
An important detail here: Use an empty String as default value for the properties.location in the @Value annotation to avoid errors when the property is not set.
The convention for a properties.location is: Use a directory or a path to a properties file as properties.location.
If you want to override only specific properties, a PropertiesFactoryBean with setIgnoreResourceNotFound(true) can be used with the resource array set as locations.
I'm sure that this solution can be extended to handle multiple files...
EDIT
Here my solution for multiple files :) Like before, this can be combined with a PropertiesFactoryBean.
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.PathResource;
import org.springframework.core.io.Resource;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;
import static java.util.Arrays.stream;
import static java.util.stream.Collectors.toMap;
@Configuration
class PropertiesConfig {
private final static Logger LOG = LoggerFactory.getLogger(PropertiesConfig.class);
private final static String[] PROPERTIES_FILENAMES = {"job1.properties", "job2.properties", "job3.properties"};
@Value("${properties.location:}")
private String propertiesLocation;
@Bean
Map<String, Properties> myProperties() {
return stream(PROPERTIES_FILENAMES)
.collect(toMap(filename -> filename, this::loadProperties));
}
private Properties loadProperties(final String filename) {
final Resource[] possiblePropertiesResources = {
new ClassPathResource(filename),
new PathResource("config/" + filename),
new PathResource(filename),
new PathResource(getCustomPath(filename))
};
final Resource resource = stream(possiblePropertiesResources)
.filter(Resource::exists)
.reduce((previous, current) -> current)
.get();
final Properties properties = new Properties();
try {
properties.load(resource.getInputStream());
} catch(final IOException exception) {
throw new RuntimeException(exception);
}
LOG.info("Using {} as user resource", resource);
return properties;
}
private String getCustomPath(final String filename) {
return propertiesLocation.endsWith(".properties") ? propertiesLocation : propertiesLocation + filename;
}
}
git log -n 1 [branch_name]
branch_name
(may be remote or local branch) is optional. Without branch_name
, it will show the latest commit on the current branch.
For example:
git log -n 1
git log -n 1 origin/master
git log -n 1 some_local_branch
git log -n 1 --pretty=format:"%H" #To get only hash value of commit
Example in setting button title color
btnDone.setTitleColor(.black, for: .normal)
I just discovered that you can also use "-d "
:
cut "-d "
$ cat a
hello how are you
I am fine
$ cut "-d " -f2 a
how
am
I faced the same issue, It got fixed after keeping issuer subject value in the certificate as it is as subject of issuer certificate.
so please check "issuer subject value in the certificate(cert.pem) == subject of issuer (CA.pem)"
openssl verify -CAfile CA.pem cert.pem
cert.pem: OK
For those experiencing issues after upgrading to MacOS Catalina.
Short version:
# 1a) Use tool: conda-prefix-replacement -
# Restores: Desktop -> Relocated Items -> Security -> anaconda3
curl -L https://repo.anaconda.com/pkgs/misc/cpr-exec/cpr-0.1.1-osx-64.exe -o cpr && chmod +x cpr
./cpr rehome ~/anaconda3
# or if fails
#./cpr rehome ~/anaconda3 --old-prefix /Anaconda3
source ~/anaconda3/bin/activate
# 1b) Alternatively - reintall anaconda -
# brew cask install anaconda
# 2) conda init
conda init zsh
# or
# conda init
Further reading - Anaconda blog post and Github discussion.
Dim
simply declares the value and the type.
Set
assigns a value to the variable.
There's a new library in town, from rOpenSci: writexl
Portable, light-weight data frame to xlsx exporter based on libxlsxwriter. No Java or Excel required
I found it better and faster than the above suggestions (working with the dev version):
library(writexl)
sheets <- list("sheet1Name" = sheet1, "sheet2Name" = sheet2) #assume sheet1 and sheet2 are data frames
write_xlsx(sheets, "path/to/location")
Despite the age of this question, I recently found it very useful and therefore can only assume there are others still viewing it. After looking here and elsewhere I surmised that the main three client side checks for indirectly detecting an ad blocker were to check for blocked div
/img
, blocked iframe
s and blocked resources (javascript files).
Maybe it's over the top or paranoid but it covers for ad blocking systems that block only one or two out of the selection and therefore may not have been covered had you only done the one check.
On the page your are running the checks add: (I am using jQuery)
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="advertisement.js"></script>
<script type="text/javascript" src="abds.js"></script>
and add the following anywhere else on the page:
<div id="myTestAd"><img src="http://placehold.it/300x250/000000/ffffff.png&text=Advert" /></div>
I used a div with a bait name as well as an externally hosted image with the text "Advert" and in dimensions used by AdSense (thanks to placehold.it!).
In advertisement.js
you should append something to the document which we can check for later. Although it seems like you're doing the same as before, you are actually checking for the file (advertisement.js
) itself being loaded, not the output.
$(document).ready(
{
$("body").append("<div id=\"myTestAd2\">check</div>");
});
And then the ad blocker detection script which combines everything
$(document).ready(function()
{
var ifr = '<iframe id="adServer" src="http://ads.google.com/adserver/adlogger_tracker.php" width="300" height="300"></iframe>';
$("body").append(ifr);
});
$(window).on("load",function()
{
var atb = $("#myTestAd");
var atb2= $("#myTestAd2");
var ifr = $("#adServer");
setTimeout(function()
{
if( (atb.height()==0) ||
(atb.filter(":visible").length==0) ||
(atb.filter(":hidden").length>0) ||
(atb.is("hidden")) ||
(atb.css("visibility")=="hidden") ||
(atb.css("display")=="none") ||
(atb2.html()!="check") ||
(ifr.height()!=300) ||
(ifr.width()!=300) )
{
alert("You're using ad blocker you normal person, you!");
}
},500);
});
When the document is ready, i.e. the markup is loaded, we add the iframe to the document also. Then, when the window is loaded, i.e. the content incl. images etc. is loaded, we check:
advertimsent.js
was not blocked.And the styles:
div#myTestAd, iframe#adServer
{
display: block;
position: absolute;
left: -9999px;
top: -9999px;
}
div#myTestAd2
{
display: none;
}
Hope this helps
The formal difference -
The difference in usage:
object
. You can use it with or without related class. In 1st case it's called a companion object. You have to:
To create a program you should use main method in object
, not in class
.
object Hello {
def main(args: Array[String]) {
println("Hello, World!")
}
}
You also may use it as you use singleton object in java.
If you want to replace the existing database completely use the WITH REPLACE option:
RESTORE DATABASE <YourDatabase>
FROM DISK='<the path to your backup file>\<YourDatabase>.bak'
WITH REPLACE
I have an S3 and used this guide from Google:
https://developers.google.com/chrome-developer-tools/docs/remote-debugging
Really easy, works flawlessly.
Try run HTTP over UDP with node-httpp:
Figured this out:
<input type="text" id="txtSearch" onkeypress="return searchKeyPress(event);" />
<input type="button" id="btnSearch" Value="Search" onclick="doSomething();" />
<script>
function searchKeyPress(e)
{
// look for window.event in case event isn't passed in
e = e || window.event;
if (e.keyCode == 13)
{
document.getElementById('btnSearch').click();
return false;
}
return true;
}
</script>
Git ignores folders if you write:
/js
but it can't add exceptions if you do:
!/js/jquery
or !/js/jquery/
or !/js/jquery/*
You must write:
/js/*
and only then you can except subfolders like this
!/js/jquery
Use AddWithValue()
, but be aware of the possibility of the wrong implicit type conversion
.
like this:
cmd.Parameters.AddWithValue("@param1", klantId);
cmd.Parameters.AddWithValue("@param2", klantNaam);
cmd.Parameters.AddWithValue("@param3", klantVoornaam);
var x = document.cookie;
window.alert(x);
This displays every cookie the current site has access to. If you for example have created two cookies "username=Frankenstein" and "username=Dracula", these two lines of code will display "username=Frankenstein; username=Dracula". However, information such as expiry date will not be shown.
I used the following code.
<Label>
<Label.Content>
<AccessText TextWrapping="Wrap" Text="xxxxx"/>
</Label.Content>
</Label>
Kruskal time complexity worst case is O(E log E),this because we need to sort the edges. Prim time complexity worst case is O(E log V) with priority queue or even better, O(E+V log V) with Fibonacci Heap. We should use Kruskal when the graph is sparse, i.e.small number of edges,like E=O(V),when the edges are already sorted or if we can sort them in linear time. We should use Prim when the graph is dense, i.e number of edges is high ,like E=O(V²).
In Ubuntu 18.04 the QtCreator examples and API docs missing, This is my way to solve this problem, should apply to almost every Ubuntu release.
For QtCreator and Examples and API Docs:
sudo apt install `apt-cache search 5-examples | grep qt | grep example | awk '{print $1 }' | xargs `
sudo apt install `apt-cache search 5-doc | grep "Qt 5 " | awk '{print $1}' | xargs`
sudo apt-get install build-essential qtcreator qt5-default
If something is also missing, then:
sudo apt install `apt-cache search qt | grep 5- | grep ^qt | awk '{print $1}' | xargs `
Hope to be helpful.
Also posted in Ask Ubuntu: https://askubuntu.com/questions/450983/ubuntu-14-04-qtcreator-qt5-examples-missing
You are using g++ 4.6 version you must invoke the flag -std=c++0x to compile
g++ -std=c++0x *.cpp -o output
Not sure if this is the answer you were looking for, but it worked for me. After spinning my wheels in Windows Firewall, I went back into SQL Server Configuration Manager, checked SQL Server Network Configuration, in the protocols for the instance I was working with look at TCP/IP. By default it seems mine was set to disabled, which allowed for instance connections on the local machine but not using SSMS on another machine. Enabling TCP/IP did the trick for me.
A MIME type is a label used to identify a type of data. It is used so software can know how to handle the data. It serves the same purpose on the Internet that file extensions do on Microsoft Windows.
So if a server says "This is text/html" the client can go "Ah, this is an HTML document, I can render that internally", while if the server says "This is application/pdf" the client can go "Ah, I need to launch the FoxIt PDF Reader plugin that the user has installed and that has registered itself as the application/pdf handler."
You'll most commonly find them in the headers of HTTP messages (to describe the content that an HTTP server is responding with or the formatting of the data that is being POSTed in a request) and in email headers (to describe the message format and attachments).
There's a keypress() event method. The Enter key's ascii number is 13 and is not dependent on which browser is being used.
Easy Difference,
Final : means that the Value of the variable is Final and it will not change anywhere. If you say that final x = 5 it means x can not be changed its value is final for everyone.
Static : means that it has only one object. lets suppose you have x = 5, in memory there is x = 5 and its present inside a class. if you create an object or instance of the class which means there a specific box that represents that class and its variables and methods. and if you create an other object or instance of that class it means there are two boxes of that same class which has different x inside them in the memory. and if you call both x in different positions and change their value then their value will be different. box 1 has x which has x =5 and box 2 has x = 6. but if you make the x static it means it can not be created again. you can create object of class but that object will not have different x in them. if x is static then box 1 and box 2 both will have the same x which has the value of 5. Yes i can change the value of static any where as its not final. so if i say box 1 has x and i change its value to x =5 and after that i make another box which is box2 and i change the value of box2 x to x=6. then as X is static both boxes has the same x. and both boxes will give the value of box as 6 because box2 overwrites the value of 5 to 6.
Both final and static are totally different. Final which is final can not be changed. static which will remain as one but can be changed.
"This is an example. remember static variable are always called by their class name. because they are only one for all of the objects of that class. so Class A has x =5, i can call and change it by A.x=6; "
Following many hours of search and testing i found following solution(by implementing different SO solutions) here it what didn't failed in any case i was getting crash.
Runnable runnable = new Runnable() {
@Override
public void run() {
//displayPopup,progress dialog or what ever action. example
ProgressDialogBox.setProgressBar(Constants.LOADING,youractivityName.this);
}};
Where logcat is indicating the crash is happening.. start a runnable .in my case at receiving broadcast.
runOnUiThread(new Runnable() {
@Override
public void run() {
if(!isFinishing()) {
new Handler().postAtTime(runnable,2000);
}
}
});
This worked form me:
public void DetectOpenedForm()
{
FormCollection AllForms = Application.OpenForms;
Boolean FormOpen = false;
Form OpenedForm = new Form();
foreach (Form form in AllForms)
{
if (form.Name == "YourFormName")
{
OpenedForm = form;
FormOpen = true;
}
}
if (FormOpen == true)
{
OpenedForm.Close();
}
}
Your code attempts to overwrite a string literal. This is undefined behaviour.
There are several ways to fix this:
malloc()
then strcpy()
then free()
;str
into an array and use strcpy()
;strdup()
.As noted above by other contributors, using a .bowerrc
file with the JSON
{ "directory": "some/path" }
is necessary -- HOWEVER, you may run into an issue on Windows while creating that file. If Windows gives you a message imploring you to add a "file name", simply use a text editor / IDE such as Notepad++.
Add the JSON to an unnamed file, save it as .bowerrc -- you're good to go!
Probably an easy assumption, but I hope this save others the unnecessary headache :)
In case, your data is in the following structure, you get string as an index
items = {
am:"Amharic",
ar:"Arabic",
az:"Azerbaijani",
ba:"Bashkir",
be:"Belarusian"
}
In this case, you can use extra variable to get the index in number:
<ul>
<li v-for="(item, key, index) in items">
{{ item }} - {{ key }} - {{ index }}
</li>
</ul>
In my experience window.requestAnimationFrame
wasn't enough to ensure that the DOM had been fully rendered / reflow-complete from componentDidMount
. I have code running that accesses the DOM immediately after a componentDidMount
call and using solely window.requestAnimationFrame
would result in the element being present in the DOM; however, updates to the element's dimensions aren't reflected yet since a reflow hasn't yet occurred.
The only truly reliable way for this to work was to wrap my method in a setTimeout
and a window.requestAnimationFrame
to ensure React's current call stack gets cleared before registering for the next frame's render.
function onNextFrame(callback) {
setTimeout(function () {
requestAnimationFrame(callback)
})
}
If I had to speculate on why this is occurring / necessary I could see React batching DOM updates and not actually applying the changes to the DOM until after the current stack is complete.
Ultimately, if you're using DOM measurements in the code you're firing after the React callbacks you'll probably want to use this method.
As far as I can see, most of the solutions here count the number of non empty cells, and not the number of rows with non empty cell inside.
One possible solution for the range B3:E29
is for example
=SUM(ArrayFormula(IF(B3:B29&C3:C29&D3:D29&E3:E29="";0;1)))
Here ArrayFormula(IF(B3:B29&C3:C29&D3:D29&E3:E29="";0;1))
returns a column of 0
(if the row is empty) and 1
(else).
Another one is given in consideRatio's answer.
Windows solution: Assuming all files contained in sub-directory 'src', and you want to compile them to 'bin'.
for /r src %i in (*.java) do javac %i -sourcepath src -d bin
If src contains a .java file immediately below it then this is faster
javac src\\*.java -d bin
These variables are constants, i.e. private static final
whether they're named in all caps or not. The all-caps convention simply makes it more obvious that these variables are meant to be constants, but it isn't required. I've seen
private static final Logger log = Logger.getLogger(MyClass.class);
in lowercase before, and I'm fine with it because I know to only use the logger to log messages, but it does violate the convention. You could argue that naming it log
is a sub-convention, I suppose. But in general, naming constants in uppercase isn't the One Right Way, but it is The Best Way.
The brackets are unnecessary. Just do
case text1:
case text4:
doSomethingHere();
break;
case text2:
doSomethingElse()
break;
If anyone is curious, this is called a case fallthrough. The ability to do this is the reason why break;
is necessary to end case statements. For more information, see the wikipedia article http://en.wikipedia.org/wiki/Switch_statement.
MainLabel:BEGIN
IF (<condition>) IS NOT NULL THEN
LEAVE MainLabel;
END IF;
....code
i.e.
IF (@skipMe) IS NOT NULL THEN /* @skipMe returns Null if never set or set to NULL */
LEAVE MainLabel;
END IF;
It's canonical to use references for this; precedence: ostream::operator<<
. Pointers and references here are, for all ordinary purposes, the same speed/size/safety.
You want to use a FrameLayout or a Merge layout to achieve this. Android dev guide has a great example of this here: Android Layout Tricks #3: Optimize by merging.
You can easily draw simple svg
s onto a canvas by:
Note: The only drawback of the method is that it cannot draw images embedded in the svg
. (see demo)
(Note that the embedded image is only visible in the svg
)
var svg = document.querySelector('svg');_x000D_
var img = document.querySelector('img');_x000D_
var canvas = document.querySelector('canvas');_x000D_
_x000D_
// get svg data_x000D_
var xml = new XMLSerializer().serializeToString(svg);_x000D_
_x000D_
// make it base64_x000D_
var svg64 = btoa(xml);_x000D_
var b64Start = 'data:image/svg+xml;base64,';_x000D_
_x000D_
// prepend a "header"_x000D_
var image64 = b64Start + svg64;_x000D_
_x000D_
// set it as the source of the img element_x000D_
img.src = image64;_x000D_
_x000D_
// draw the image onto the canvas_x000D_
canvas.getContext('2d').drawImage(img, 0, 0);
_x000D_
svg, img, canvas {_x000D_
display: block;_x000D_
}
_x000D_
SVG_x000D_
_x000D_
<svg height="40">_x000D_
<rect width="40" height="40" style="fill:rgb(255,0,255);" />_x000D_
<image xlink:href="https://en.gravatar.com/userimage/16084558/1a38852cf33713b48da096c8dc72c338.png?size=20" height="20px" width="20px" x="10" y="10"></image>_x000D_
</svg>_x000D_
<hr/><br/>_x000D_
_x000D_
IMAGE_x000D_
<img/>_x000D_
<hr/><br/>_x000D_
_x000D_
CANVAS_x000D_
<canvas></canvas>_x000D_
<hr/><br/>
_x000D_
You can use ServiceLocatorFactoryBean. First you need to create an interface for your class
public interface YourClassFactory {
YourClass getClassByName(String name);
}
Then you have to create a config file for ServiceLocatorBean
@Configuration
@Component
public class ServiceLocatorFactoryBeanConfig {
@Bean
public ServiceLocatorFactoryBean serviceLocatorBean(){
ServiceLocatorFactoryBean bean = new ServiceLocatorFactoryBean();
bean.setServiceLocatorInterface(YourClassFactory.class);
return bean;
}
}
Now you can find your class by name like that
@Autowired
private YourClassfactory factory;
YourClass getYourClass(String name){
return factory.getClassByName(name);
}
Something like this could be used, and still maintaining meanings of return
(to return control signals) and echo
(to return information) and logging statements (to print debug/info messages).
v_verbose=1
v_verbose_f="" # verbose file name
FLAG_BGPID=""
e_verbose() {
if [[ $v_verbose -ge 0 ]]; then
v_verbose_f=$(tempfile)
tail -f $v_verbose_f &
FLAG_BGPID="$!"
fi
}
d_verbose() {
if [[ x"$FLAG_BGPID" != "x" ]]; then
kill $FLAG_BGPID > /dev/null
FLAG_BGPID=""
rm -f $v_verbose_f > /dev/null
fi
}
init() {
e_verbose
trap cleanup SIGINT SIGQUIT SIGKILL SIGSTOP SIGTERM SIGHUP SIGTSTP
}
cleanup() {
d_verbose
}
init
fun1() {
echo "got $1" >> $v_verbose_f
echo "got $2" >> $v_verbose_f
echo "$(( $1 + $2 ))"
return 0
}
a=$(fun1 10 20)
if [[ $? -eq 0 ]]; then
echo ">>sum: $a"
else
echo "error: $?"
fi
cleanup
In here, I'm redirecting debug messages to separate file, that is watched by tail, and if there is any changes then printing the change, trap
is used to make sure that background process always ends.
This behavior can also be achieved using redirection to /dev/stderr
, But difference can be seen at the time of piping output of one command to input of other command.
I came across ParamUnittest the other day when looking at the source code for radon (example usage on the GitHub repository). It should work with other frameworks that extend TestCase (like Nose).
Here is an example:
import unittest
import paramunittest
@paramunittest.parametrized(
('1', '2'),
#(4, 3), <---- Uncomment to have a failing test
('2', '3'),
(('4', ), {'b': '5'}),
((), {'a': 5, 'b': 6}),
{'a': 5, 'b': 6},
)
class TestBar(TestCase):
def setParameters(self, a, b):
self.a = a
self.b = b
def testLess(self):
self.assertLess(self.a, self.b)
Let's assume you want to overwrite the same file:
import json
with open('data.json', 'r') as data_file:
data = json.load(data_file)
for element in data:
element.pop('hours', None)
with open('data.json', 'w') as data_file:
data = json.dump(data, data_file)
dict.pop(<key>, not_found=None)
is probably what you where looking for, if I understood your requirements. Because it will remove the hours
key if present and will not fail if not present.
However I am not sure I understand why it makes a difference to you whether the hours key contains some days or not, because you just want to get rid of the whole key / value pair, right?
Now, if you really want to use del
instead of pop
, here is how you could make your code work:
import json
with open('data.json') as data_file:
data = json.load(data_file)
for element in data:
if 'hours' in element:
del element['hours']
with open('data.json', 'w') as data_file:
data = json.dump(data, data_file)
EDIT So, as you can see, I added the code to write the data back to the file. If you want to write it to another file, just change the filename in the second open statement.
I had to change the indentation, as you might have noticed, so that the file has been closed during the data cleanup phase and can be overwritten at the end.
with
is what is called a context manager, whatever it provides (here the data_file file descriptor) is available ONLY within that context. It means that as soon as the indentation of the with
block ends, the file gets closed and the context ends, along with the file descriptor which becomes invalid / obsolete.
Without doing this, you wouldn't be able to open the file in write mode and get a new file descriptor to write into.
I hope it's clear enough...
SECOND EDIT
This time, it seems clear that you need to do this:
with open('dest_file.json', 'w') as dest_file:
with open('source_file.json', 'r') as source_file:
for line in source_file:
element = json.loads(line.strip())
if 'hours' in element:
del element['hours']
dest_file.write(json.dumps(element))
To replace multiples columns convert to numpy array using .values
:
df.loc[df.A==0, ['B', 'C']] = df.loc[df.A==0, ['B', 'C']].values / 2
To complete Wiktor Stribizew and Dougui answers I would say that /regex/.match?("string")
about as fast as "string".match?(/regex/)
.
Ruby 2.4.0 (10 000 000 ~2 sec)
2.4.0 > require 'benchmark'
=> true
2.4.0 > Benchmark.measure{ 10000000.times { /^CVE-[0-9]{4}-[0-9]{4,}$/.match?("CVE-2018-1589") } }
=> #<Benchmark::Tms:0x005563da1b1c80 @label="", @real=2.2060338060000504, @cstime=0.0, @cutime=0.0, @stime=0.04000000000000001, @utime=2.17, @total=2.21>
2.4.0 > Benchmark.measure{ 10000000.times { "CVE-2018-1589".match?(/^CVE-[0-9]{4}-[0-9]{4,}$/) } }
=> #<Benchmark::Tms:0x005563da139eb0 @label="", @real=2.260814556000696, @cstime=0.0, @cutime=0.0, @stime=0.010000000000000009, @utime=2.2500000000000004, @total=2.2600000000000007>
Ruby 2.6.2 (100 000 000 ~20 sec)
irb(main):001:0> require 'benchmark'
=> true
irb(main):005:0> Benchmark.measure{ 100000000.times { /^CVE-[0-9]{4}-[0-9]{4,}$/.match?("CVE-2018-1589") } }
=> #<Benchmark::Tms:0x0000562bc83e3768 @label="", @real=24.60139879199778, @cstime=0.0, @cutime=0.0, @stime=0.010000999999999996, @utime=24.565644999999996, @total=24.575645999999995>
irb(main):004:0> Benchmark.measure{ 100000000.times { "CVE-2018-1589".match?(/^CVE-[0-9]{4}-[0-9]{4,}$/) } }
=> #<Benchmark::Tms:0x0000562bc846aee8 @label="", @real=24.634255946999474, @cstime=0.0, @cutime=0.0, @stime=0.010046, @utime=24.598276, @total=24.608321999999998>
Note: times varies, sometimes /regex/.match?("string")
is faster and sometimes "string".match?(/regex/)
, the differences maybe only due to the machine activity.
You can specify JsonSerializerSettings
for each JsonConvert
, and you can set a global default.
Single JsonConvert
with an overload:
// Option #1.
JsonSerializerSettings config = new JsonSerializerSettings { ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore };
this.json = JsonConvert.SerializeObject(YourObject, Formatting.Indented, config);
// Option #2 (inline).
JsonConvert.SerializeObject(YourObject, Formatting.Indented,
new JsonSerializerSettings() {
ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
}
);
Global Setting with code in Application_Start()
in Global.asax.cs:
JsonConvert.DefaultSettings = () => new JsonSerializerSettings {
Formatting = Newtonsoft.Json.Formatting.Indented,
ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
};
Reference: https://github.com/JamesNK/Newtonsoft.Json/issues/78
You need to insert the new row and then copy from the source row to the newly inserted row. Excel allows you to paste special just formulas. So in Excel:
VBA if required with Rows("1:1") being source and Rows("2:2") being target:
Rows("2:2").Insert Shift:=xlDown, CopyOrigin:=xlFormatFromLeftOrAbove
Rows("2:2").Clear
Rows("1:1").Copy
Rows("2:2").PasteSpecial Paste:=xlPasteFormulas, Operation:=xlNone
Might be cleaner to use PrintWriter
and its method println
.
Just make sure you close the writer when you're done
Use the with statement.
{% with total=business.employees.count %}
{{ total }} employee{{ total|pluralize }}
{% endwith %}
I can't imply the code in first paragraph in this answer. Maybe the template language had deprecated the old format.
the following worked for me:
$.trim($('#dropdownId option:selected').html())
No. They don't inherit it.
The fact some other class may use it indirectly says nothing about inheritance, but about encapsulation.
For instance:
class Some {
private int count;
public void increment() {
count++;
}
public String toString() {
return Integer.toString( count );
}
}
class UseIt {
void useIt() {
Some s = new Some();
s.increment();
s.increment();
s.increment();
int v = Integer.parseInt( s.toString() );
// hey, can you say you inherit it?
}
}
You can also get the value of count
inside UseIt
via reflection. It doesn't means, you inherit it.
UPDATE
Even though the value is there, it is not inherited by the subclass.
For instance a subclass defined as:
class SomeOther extends Some {
private int count = 1000;
@Override
public void increment() {
super.increment();
count *= 10000;
}
}
class UseIt {
public static void main( String ... args ) {
s = new SomeOther();
s.increment();
s.increment();
s.increment();
v = Integer.parseInt( s.toString() );
// what is the value of v?
}
}
This is exactly the same situation as the first example. The attribute count
is hidden and not inherited by the subclass at all. Still, as DigitalRoss points out, the value is there, but not by means on inheritance.
Put it this way. If your father is wealthy and gives you a credit card, you can still buy thing with his money, but doesn't mean you have inherited all that money, does it?
Other update
It is very interesting though, to know why the attribute is there.
I frankly don't have the exact term to describe it, but it's the JVM and the way it works that loads also the "not inherited" parent definition.
We could actually change the parent and the subclass will still work.
//A.java
class A {
private int i;
public String toString() { return ""+ i; }
}
// B.java
class B extends A {}
// Main.java
class Main {
public static void main( String [] args ) {
System.out.println( new B().toString() );
}
}
// Compile all the files
javac A.java B.java Main.java
// Run Main
java Main
// Outout is 0 as expected as B is using the A 'toString' definition
0
// Change A.java
class A {
public String toString() {
return "Nothing here";
}
}
// Recompile ONLY A.java
javac A.java
java Main
// B wasn't modified and yet it shows a different behaviour, this is not due to
// inheritance but the way Java loads the class
Output: Nothing here
I guess the exact term could be found here: The JavaTM Virtual Machine Specification
Yes you can do this.
*[id^='term-']{
[css here]
}
This will select all ids that start with 'term-'
.
As for the reason for not doing this, I see where it would be preferable to select this way; as for style, I wouldn't do it myself, but it's possible.
//import java.util.ArrayList;
//import org.bson.Document;
Document root = Document.parse("{\n"
+ " \"name\": \"Json\",\n"
+ " \"detail\": {\n"
+ " \"first_name\": \"Json\",\n"
+ " \"last_name\": \"Scott\",\n"
+ " \"age\": \"23\"\n"
+ " },\n"
+ " \"status\": \"success\"\n"
+ "}");
System.out.println(((String) root.get("name")));
System.out.println(((String) ((Document) root.get("detail")).get("first_name")));
System.out.println(((String) ((Document) root.get("detail")).get("last_name")));
System.out.println(((String) ((Document) root.get("detail")).get("age")));
System.out.println(((String) root.get("status")));
It says already we are running the services with port no 4200 please use another port instead of 4200. Below command is to solve the problem
ng serve --port 4300
Why are they using
<i>
tag to display icons ?
Because it is:
Is it not a bad practice ?
Awful practice. It is a triumph of performance over semantics.
Active directory is a directory service provider, where you can add new user to a directory, remove or modify, specify privilages, assign policy etc. Its just like a phone directory where every person have a unique contact number. Every thing in AD(Active Directory) are considered as Objects and every object is given a Unique ID.(similar to a unique contact number in a phone directory.
Ldap is a protocol specially designed for directory service providers. Windows server OS uses AD as a directory server, AIX which is a UNIX version by IBM uses Tivoli directory server. Both of them uses LDAP protocol for interacting with directory.
Apart from protocol there are LDAP servers, LDAP browsers too.
It should be :
public async Task<ActionResult> GetSomeJsonData()
{
var model = // ... get data or build model etc.
return Json(new { Data = model }, JsonRequestBehavior.AllowGet);
}
or more simply:
return Json(model, JsonRequestBehavior.AllowGet);
I did notice that you are calling GetResources() from another ActionResult which wont work. If you are looking to get JSON back, you should be calling GetResources() from ajax directly...
public String ReadFromfile(String fileName, Context context) {
StringBuilder returnString = new StringBuilder();
InputStream fIn = null;
InputStreamReader isr = null;
BufferedReader input = null;
try {
fIn = context.getResources().getAssets()
.open(fileName, Context.MODE_WORLD_READABLE);
isr = new InputStreamReader(fIn);
input = new BufferedReader(isr);
String line = "";
while ((line = input.readLine()) != null) {
returnString.append(line);
}
} catch (Exception e) {
e.getMessage();
} finally {
try {
if (isr != null)
isr.close();
if (fIn != null)
fIn.close();
if (input != null)
input.close();
} catch (Exception e2) {
e2.getMessage();
}
}
return returnString.toString();
}
There's very little reason not to open multiple workbooks in Excel. Key lines of code are:
Application.EnableEvents = False
Application.ScreenUpdating = False
...then you won't see anything whilst the code runs, and no code will run that is associated with the opening of the second workbook. Then there are...
Application.DisplayAlerts = False
Application.Calculation = xlManual
...so as to stop you getting pop-up messages associated with the content of the second file, and to avoid any slow re-calculations. Ensure you set back to True/xlAutomatic at end of your programming
If opening the second workbook is not going to cause performance issues, you may as well do it. In fact, having the second workbook open will make it very beneficial when attempting to debug your code if some of the secondary files do not conform to the expected format
Here is some expert guidance on using multiple Excel files that gives an overview of the different methods available for referencing data
An extension question would be how to cycle through multiple files contained in the same folder. You can use the Windows folder picker using:
With Application.FileDialog(msoFileDialogFolderPicker)
.Show
If .Selected.Items.Count = 1 the InputFolder = .SelectedItems(1)
End With
FName = VBA.Dir(InputFolder)
Do While FName <> ""
'''Do function here
FName = VBA.Dir()
Loop
Hopefully some of the above will be of use
I had this problem and its because I wasnt using the latest version of C# (C# 7.3 as of writing this) and I had to change the below internal
access modifier to public
.
internal class Program
{
public static void Main(string[] args)
{
//My Code
}
}
or ammend the .csproj
to use the latest version of C# (this way meant I could still keep the above class as internal
):
<PropertyGroup>
<LangVersion>latest</LangVersion>
<NoWin32Manifest>true</NoWin32Manifest>
</PropertyGroup>
I only use rebase workflow, because it is visually clearer(not only in GitKraken, but also in Intellij and in gitk
, but I recommend the first one most): you have a branch, it originates from the master, and it goes back to master. When the diagram is clean and beautiful, you will know that nothing goes to hell, ever.
My workflow is almost the same from yours, but with only one small difference: I squash
commits into one in my local branch before rebase
my branch onto the latest changes on master
, because:
rebase
works on basis of each commit
which means, if you have 15 commits changing the same line as master
does, you have to check 15 times if you don't squash, but what matters is the final result, right?
So, the whole workflow is:
Checkout to master
and pull to ensure that you have the latest version
From there, create a new branch
Do your work there, you can freely commit several times, and push to remote, no worries, because it is your branch.
If someone tells you, "hey, my PR/MR is approved, now it is merged to master", you can fetch them/pull them. You can do it anytime, or in step 6.
After doing all your work, commit them, and if you have several commits, squash them(they are all your work, and how many times you change a line of code does not matter; the only important thing is the final version). Push it or not, it doesn't matter.
Checkout to master
, pull
again to ensure you have the latest master
in local. Your diagram should be similar to this:
As you can see, you are on your local branch, which originates from an outdated status on master
, while master
(both local and remote) has moved forward with changes of your colleague.
master
and choose "Rebase"; another reason why I like it.)
After that, you will be like:So now, you have all the changes on the latest master
, combined with changes on your branch. You can now push to your remote, and, if you have pushed before, you will have to force push; Git will tell you that you cannot simply fast forward. That's normal, because of the rebase, you have changed the start point of your branch. But you should not fear: wisely use the force, but without fear. In the end, the remote is also your branch so you do not affect master
even if you do something wrong.
Create PR/MR and wait until it is approved, so master
will have your contribution. Congrats! So you can now checkout to master
, pull your changes, and delete your local branch in order to clean up the diagram. The remote branch should be deleted too, if this is not done when you merge it into master.
The final diagram is clean and clear again:
With C# 7, you can use the new ref locals feature to simplify the conditional assignment of ref-compatible variables. So now, not only can you do:
int i = 0;
T b = default(T), c = default(T);
// initialization of C#7 'ref-local' variable using a conditional r-value?¹?
ref T a = ref (i == 0 ? ref b : ref c);
...but also the extremely wonderful:
// assignment of l-value?²? conditioned by C#7 'ref-locals'
(i == 0 ? ref b : ref c) = a;
That line of code assigns the value of a
to either b
or c
, depending on the value of i
.
I looked for a C/C++ API for Google Voice for quite a while and never found anything close (the closest was a C# API). Since I really needed it, I decided to just write one myself:
http://github.com/mastermind202/GoogleVoice
I hope others find it useful. Feedback and suggestions welcome.
if(frm.product.value=="F"){
var select = document.getElementsByName('val')[0];
select.remove(0);
select.remove(1);
}
Rda is just a short name for RData. You can just save(), load(), attach(), etc. just like you do with RData.
Rds stores a single R object. Yet, beyond that simple explanation, there are several differences from a "standard" storage. Probably this R-manual Link to readRDS() function clarifies such distinctions sufficiently.
So, answering your questions:
I realize this is an older thread, but for future reference:
As of iPhone SDK 3.0, custom gradients can be implemented very easily, without subclassing or images, by using the new CAGradientLayer
:
UIView *view = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 100)] autorelease];
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = view.bounds;
gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor blackColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil];
[view.layer insertSublayer:gradient atIndex:0];
Take a look at the CAGradientLayer docs. You can optionally specify start and end points (in case you don't want a linear gradient that goes straight from the top to the bottom), or even specific locations that map to each of the colors.
I would store the timespan.TotalSeconds in a float and then retrieve it using Timespan.FromSeconds(totalSeconds).
Depending on the resolution you need you could use TotalMilliseconds, TotalMinutes, TotalDays.
You could also adjust the precision of your float in the database.
It's not an exact value... but the nice thing about this is that it's easy to read and calculate in simple queries.
After all these months have passed after the original question, it's now worth pointing out that Microsoft has devised a solution of their own. See http://blogs.msdn.com/b/vbertocci/archive/2012/11/20/introducing-the-developer-preview-of-the-json-web-token-handler-for-the-microsoft-net-framework-4-5.aspx for details.
Placing @Transient
on getter with private field worked for me.
private String name;
@Transient
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
Same thing happens when :port is in your local .env
again the double quotes does the trick
APP_URL="http://localhost:8000"
and then
php artisan config:clear
System.Diagnostics.Process.Start("Exe Name");
// acos(0.0) will return value of pi/2, inverse of cos(0) is pi/2
double pi = 2 * acos(0.0);
int n; // upto 6 digit
scanf("%d",&n); //precision with which you want the value of pi
printf("%.*lf\n",n,pi); // * will get replaced by n which is the required precision
You can analyze the core dump file using the "gdb" command.
gdb - The GNU Debugger
syntax:
# gdb executable-file core-file
example: # gdb out.txt core.xxx
This is a part from a REST-Service I´ve written recently.
var select = $("#productSelect")
for (var prop in data) {
var option = document.createElement('option');
option.innerHTML = data[prop].ProduktName
option.value = data[prop].ProduktName;
select.append(option)
}
The reason why im posting this is because appendChild() wasn´t working in my case so I decided to put up another possibility that works aswell.
Acoording to RFC 2046 (Multipurpose Internet Mail Extensions):
The recommended action for an implementation that receives an
"application/octet-stream" entity is to simply offer to put the data in a file
So I'd go for that one.
A variant of script that works locale-independently. Put it in a text file with .cmd extension and run.
::: Begin set date
for /f "tokens=1-4 delims=/-. " %%i in ('date /t') do (call :set_date %%i %%j %%k %%l)
goto :end_set_date
:set_date
if "%1:~0,1%" gtr "9" shift
for /f "skip=1 tokens=2-4 delims=(-)" %%m in ('echo,^|date') do (set %%m=%1&set %%n=%2&set %%o=%3)
goto :eof
:end_set_date
::: End set date
echo day in 'DD' format is %dd%; month in 'MM' format is %mm%; year in 'YYYY' format is %yy%
The variables %dd%, %mm% and %yy% will keep the day('DD' format), the month('MM' format) and the year('YYYY' format) respectively.
I created this table which contains both the heights of iPhone and iPad keyboards, both for landscape and portrait mode, both with the toolbar on and off.
I even explained how you can use these dimensions in your code here.
Note that you should only use these dimensions if you need to know the keyboard's dimension before you layout the view. Otherwise the solutions from the other answers work better.
Here is what I am doing to solve this issue. I agree this is because of the timing issue and needed a pause to execute the code.
var delayInMilliseconds = 1000;
setTimeout(function() {
//add your code here to execute
}, delayInMilliseconds);
This new code will pause it for 1 second and meanwhile run your code.
here is another function to format xml
function formatXml(xml){
var out = "";
var tab = " ";
var indent = 0;
var inClosingTag=false;
var dent=function(no){
out += "\n";
for(var i=0; i < no; i++)
out+=tab;
}
for (var i=0; i < xml.length; i++) {
var c = xml.charAt(i);
if(c=='<'){
// handle </
if(xml.charAt(i+1) == '/'){
inClosingTag = true;
dent(--indent);
}
out+=c;
}else if(c=='>'){
out+=c;
// handle />
if(xml.charAt(i-1) == '/'){
out+="\n";
//dent(--indent)
}else{
if(!inClosingTag)
dent(++indent);
else{
out+="\n";
inClosingTag=false;
}
}
}else{
out+=c;
}
}
return out;
}
Use vars(module)
then filter out anything that isn't a function using inspect.isfunction
:
import inspect
import my_module
my_module_functions = [f for _, f in vars(my_module).values() if inspect.isfunction(f)]
The advantage of vars
over dir
or inspect.getmembers
is that it returns the functions in the order they were defined instead of sorted alphabetically.
Also, this will include functions that are imported by my_module
, if you want to filter those out to get only functions that are defined in my_module
, see my question Get all defined functions in Python module.
the best way for import image is...
import React, { Component } from 'react';
// image import
import CartIcon from '../images/CartIcon.png';
class App extends Component {
render() {
return (
<div>
//Call image in source like this
<img src={CartIcon}/>
</div>
);
}
}
You just need to add disabled
as option
attribute
<option disabled>select one option</option>
Instead of myFile.js write your files like myFile.mjs. This extension comes with all the goodies of es6, but I mean I recommend you to you webpack and Babel
One more reason, maybe your url include some hiden characters, such as '\n'.
If you define your url like below, this exception will raise:
url = '''
http://google.com
'''
because there are '\n' hide in the string. The url in fact become:
\nhttp://google.com\n
<input type="password" id="byLast" class="bump25" autocomplete="new-password" onclick="this.type='text'" /> )
This worked for me
Instead of the *
selector you can use the :not(selector)
with the >
selector and set something that definitely wont be a child.
Edit: I thought it would be faster but it turns out I was wrong. Disregard.
Example:
.container > :not(marquee){
color:red;
}
<div class="container">
<p></p>
<span></span>
<div>
Use:
$ git submodule
It will list all the submodules in the specified Git repository.
Using a TTL of 0 means that APC will flush all the cache when it runs out of memory. The error don't appear anymore but it makes APC far less efficient. It's a no risk, no trouble, "I don't want to do my job" decision. APC is not meant to be used that way. You should choose a TTL high enough so the most accessed pages won't expire. The best is to give enough memory so APC doesn't need to flush cache.
Just read the manual to understand how ttl is used : http://www.php.net/manual/en/apc.configuration.php#ini.apc.ttl
The solution is to increase memory allocated to APC. Do this by increasing apc.shm_size.
If APC is compiled to use Shared Segment Memory you will be limited by your operating system. Type this command to see your system limit for each segment :
sysctl -a | grep -E "shmall|shmmax"
To alocate more memory you'll have to increase the number of segments with the parameter apc.shm_segments.
If APC is using mmap memory then you have no limit. The amount of memory is still defined by the same option apc.shm_size.
If there's not enough memory on the server, then use filters option to prevent less frequently accessed php files from being cached.
But never use a TTL of 0.
As c33s said, use apc.php to check your config. Copy the file from apc package to a webfolder and point browser to it. You'll see what is really allocated and how it is used. The graphs must remain stable after hours, if they are completly changing at each refresh, then it means that your setup is wrong (APC is flushing everything). Allocate 20% more ram than what APC really use as a security margin, and check it on a regular basis.
The default of allowing only 32MB is ridiculously low. PHP was designed when servers were 64MB and most scripts were using one php file per page. Nowadays solutions like Magento require more than 10k files (~60Mb in APC). You should allow enough memory so most of php files are always cached. It's not a waste, it's more efficient to keep opcode in ram rather than having the corresponding raw php in file cache. Nowadays we can find dedicated servers with 24Gb of memory for as low as $80/month, so don't hesitate to allow several GB to APC. I put 2GB out of 24GB on a server hosting 5Magento stores and ~40 wordpress website, APC uses 1.2GB. Count 64MB for Magento installation, 40MB for a Wordpress with some plugins.
Also, if you have developpment websites on the same server. Exclude them from cache.
I think what BrandonS wants is not the position of the mouse relative to the root element, but rather the position of some descendant element.
For that, there is the TransformToAncestor method:
Point relativePoint = myVisual.TransformToAncestor(rootVisual)
.Transform(new Point(0, 0));
Where myVisual
is the element that was just double-clicked, and rootVisual
is Application.Current.MainWindow or whatever you want the position relative to.
If you have the table definition to have an IDENTITY column e.g. IDENTITY(1,1) then don't include MyId in your INSERT INTO statement. The point of IDENTITY is it gives it the next unused value as the primary key value.
insert into MYDB.dbo.MainTable (MyFirstName, MyLastName, MyAddress, MyPort)
values(@myFirstName, @myLastName, @myAddress, @myPort)
There is then no need to pass the @MyId parameter into your stored procedure either. So change it to:
CREATE PROCEDURE [dbo].[sp_Test]
@myFirstName nvarchar(50)
,@myLastName nvarchar(50)
,@myAddress nvarchar(MAX)
,@myPort int
AS
If you want to know what the ID of the newly inserted record is add
SELECT @@IDENTITY
to the end of your procedure. e.g. http://msdn.microsoft.com/en-us/library/ms187342.aspx
You will then be able to pick this up in which ever way you are calling it be it SQL or .NET.
P.s. a better way to show you table definision would have been to script the table and paste the text into your stackoverflow browser window because your screen shot is missing the column properties part where IDENTITY is set via the GUI. To do that right click the table 'Script Table as' --> 'CREATE to' --> Clipboard. You can also do File or New Query Editor Window (all self explanitory) experient and see what you get.
In Java 8 you can also use .stream().sorted():
myMap.keySet().stream().sorted().forEach(key -> {
String value = myMap.get(key);
System.out.println("key: " + key);
System.out.println("value: " + value);
}
);
This solution, inspired by Mr. Allen's solution, requires a Numbers
table of integers (which you should have on hand if you want to do serious query operations with good performance). It does not require a CTE. You can change the NOT IN (...)
expression to exclude specific characters, or change it to an IN (...)
OR LIKE
expression to retain only certain characters.
SELECT (
SELECT SUBSTRING([YourString], N, 1)
FROM dbo.Numbers
WHERE N > 0 AND N <= CONVERT(INT, LEN([YourString]))
AND SUBSTRING([YourString], N, 1) NOT IN ('(',')',',','.')
FOR XML PATH('')
) AS [YourStringTransformed]
FROM ...
Hope this will help someone.
-> open to keyboard shortcut
-> search for "workbench.action.togglePanelPosition"
-> assign your desired shortcut
I've assigned keybinding "cmd+`"
{
"key": "cmd+`",
"command": "workbench.action.togglePanelPosition"
}
now I can toggle the terminal by pressing "cmd + `"
In the initialization chunk I define a function
pagebreak <- function() {
if(knitr::is_latex_output())
return("\\newpage")
else
return('<div style="page-break-before: always;" />')
}
In the markdown part where I want to insert a page break, I type
`r pagebreak()`
.button_x000D_
{_x000D_
font-size: 13px;_x000D_
color:green;_x000D_
}
_x000D_
<input type="submit" value="Fetch" class="button"/>
_x000D_
Same info, just in table form
| r r+ w w+ a a+
------------------|--------------------------
read | + + + +
write | + + + + +
write after seek | + + +
create | + + + +
truncate | + +
position at start | + + + +
position at end | + +
where meanings are: (just to avoid any misinterpretation)
write - writing to file is allowed
create - file is created if it does not exist yet
trunctate - during opening of the file it is made empty (all content of the file is erased)
position at start - after file is opened, initial position is set to the start of the file
Note: a
and a+
always append to the end of file - ignores any seek
movements.
BTW. interesting behavior at least on my win7 / python2.7, for new file opened in a+
mode:
write('aa'); seek(0, 0); read(1); write('b')
- second write
is ignored
write('aa'); seek(0, 0); read(2); write('b')
- second write
raises IOError
I was facing same issue, used below query to resolve it.
While creating DB you can use utf-8 encoding
eg. create database my_db character set utf8 collate utf8mb4;
EDIT: (Considering suggestions from comments) Changed utf8_bin to utf8mb4
The proper way of using NSLog, as the warning tries to explain, is the use of a formatter, instead of passing in a literal:
Instead of:
NSString *digit = [[sender titlelabel] text];
NSLog(digit);
Use:
NSString *digit = [[sender titlelabel] text];
NSLog(@"%@",digit);
It will still work doing that first way, but doing it this way will get rid of the warning.
Because of low reputation, I cannot comment the accepted answer.
I would like to mention the predefined variable CPPFLAGS
.
It might represent a better fit than CFLAGS
or CXXFLAGS
, since it is described by the GNU Make manual as:
Extra flags to give to the C preprocessor and programs that use it (the C and Fortran compilers).
CPPFLAGS
n.o
is made automatically from n.c
with a recipe of the form:
$(CC) $(CPPFLAGS) $(CFLAGS) -c
n.o
is made automatically from n.cc
, n.cpp
, or n.C
with a recipe of the form:
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c
One would use the command make CPPFLAGS=-Dvar=123
to define the desired macro.
Use a monospaced font like Lucida Console, which comes with Windows. If you cut/paste from Visual Studio or something that supports syntax highlighting, you can often preserve the colour scheme of the syntax highlighter.
SELECT COUNT(*)
FROM (SELECT COUNT(*)
FROM movies
GROUP BY id
HAVING COUNT(genre) = 4) t
You can take a diff that undoes the changes you want and commit that.
E.g. If you want to undo the changes in the range from..to
, do the following
git diff to..from > foo.diff # get a reverse diff
patch < foo.diff
git commit -a -m "Undid changes from..to".
.nav-link {
color: blue !important;
}
Worked for me. Bootstrap v4.3.1
If I can rephrase your question, what you want is a dictionary with the years as keys and an array for each year containing a list of values associated with that year, right? Here's how I'd do it:
years_dict = dict()
for line in list:
if line[0] in years_dict:
# append the new number to the existing array at this slot
years_dict[line[0]].append(line[1])
else:
# create a new array in this slot
years_dict[line[0]] = [line[1]]
What you should end up with in years_dict is a dictionary that looks like the following:
{
"2010": [2],
"2009": [4,7],
"1989": [8]
}
In general, it's poor programming practice to create "parallel arrays", where items are implicitly associated with each other by having the same index rather than being proper children of a container that encompasses them both.
api.com/users?id=id1,id2,id3,id4,id5
api.com/users?ids[]=id1&ids[]=id2&ids[]=id3&ids[]=id4&ids[]=id5
IMO, above calls does not looks RESTful, however these are quick and efficient workaround (y). But length of the URL is limited by webserver, eg tomcat.
RESTful attempt:
POST http://example.com/api/batchtask
[
{
method : "GET",
headers : [..],
url : "/users/id1"
},
{
method : "GET",
headers : [..],
url : "/users/id2"
}
]
Server will reply URI of newly created batchtask resource.
201 Created
Location: "http://example.com/api/batchtask/1254"
Now client can fetch batch response or task progress by polling
GET http://example.com/api/batchtask/1254
This is how others attempted to solve this issue:
I wanted to display logs on stdout and log file along with the timestamp. None of the above answers worked for me. I made use of process substitution and exec command and came up with the following code. Sample logs:
2017-06-21 11:16:41+05:30 Fetching information about files in the directory...
Add following lines at the top of your script:
LOG_FILE=script.log
exec > >(while read -r line; do printf '%s %s\n' "$(date --rfc-3339=seconds)" "$line" | tee -a $LOG_FILE; done)
exec 2> >(while read -r line; do printf '%s %s\n' "$(date --rfc-3339=seconds)" "$line" | tee -a $LOG_FILE; done >&2)
Hope this helps somebody!
I had a similar issue. The content of the child element was supposed to stay in the parent element while the background had to extend the full viewport width.
I resolved this issue by making the child element position: relative
and adding a pseudo element (:before
) to it with position: absolute; top: 0; bottom: 0; width: 4000px; left: -1000px;
.
The pseudo element stays behind the actual child as a pseudo background element. This works in all browsers (even IE8+ and Safari 6+ - don't have the possibility to test older versions).
Small example fiddle: http://jsfiddle.net/vccv39j9/
select distinct(city) from STATION
where lower(substr(city, -1)) in ('a','e','i','o','u')
and lower(substr(city, 1,1)) in ('a','e','i','o','u');
In addition to the anwser of Bill the Lizard:
Most of the backends parse the raw post data. In PHP for example, you will have an array $_POST
in which individual variables within the post data will be stored. In this case you have to use an additional header "Content-type: application/x-www-form-urlencoded"
:
Set objHTTP = CreateObject("WinHttp.WinHttpRequest.5.1")
URL = "http://www.somedomain.com"
objHTTP.Open "POST", URL, False
objHTTP.setRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"
objHTTP.setRequestHeader "Content-type", "application/x-www-form-urlencoded"
objHTTP.send ("var1=value1&var2=value2&var3=value3")
Otherwise you have to read the raw post data on the variable "$HTTP_RAW_POST_DATA"
.
I think you can safely say a for loop is faster.
I do admit that a regexp looks cleaner in terms of code. If it's a real bottleneck then use a for loop, otherwise stick with the regular expression for reasons of "elegance"
If you want to go for simplicity then just use
function isVowel(c) {
return ['a', 'e', 'i', 'o', 'u'].indexOf(c.toLowerCase()) !== -1
}
First install the rjson
package:
install.packages("rjson")
Then:
library("rjson")
json_file <- "http://api.worldbank.org/country?per_page=10®ion=OED&lendingtype=LNX&format=json"
json_data <- fromJSON(paste(readLines(json_file), collapse=""))
Update: since version 0.2.1
json_data <- fromJSON(file=json_file)
Use the concat function, like so:
var arrayA = [1, 2];
var arrayB = [3, 4];
var newArray = arrayA.concat(arrayB);
The value of newArray
will be [1, 2, 3, 4]
(arrayA
and arrayB
remain unchanged; concat
creates and returns a new array for the result).
You are trying to read the value of your checkbox before it is loaded. The script runs before the checkbox exists. You need to call your script when the page loads:
<body onload="dosomething()">
Example:
http://jsfiddle.net/jtbowden/6dx6A/
You are also missing a semi-colon after your first assignment.
I had the same problem and the following block of code was giving the same error message:
repositories.forEach( repo => {
const commits = await getCommits(repo);
displayCommit(commits);
});
The problem is that the method getCommits() was async but I was passing it the argument repo which was also produced by a Promise. So, I had to add the word async to it like this: async(repo) and it started working:
repositories.forEach( async(repo) => {
const commits = await getCommits(repo);
displayCommit(commits);
});
The cex
parameter will do that for you.
a <- c(3, 2, 2, 2, 1, 2 )
barplot(a, beside = T,
col = 1:6, space = c(0, 2))
legend("topright",
legend = c("a", "b", "c", "d", "e", "f"),
fill = 1:6, ncol = 2,
cex = 0.75)
According to the Box-cox transformation formula in the paper Box,George E. P.; Cox,D.R.(1964). "An analysis of transformations", I think mlegge's post might need to be slightly edited.The transformed y should be (y^(lambda)-1)/lambda instead of y^(lambda). (Actually, y^(lambda) is called Tukey transformation, which is another distinct transformation formula.)
So, the code should be:
(trans <- bc$x[which.max(bc$y)])
[1] 0.4242424
# re-run with transformation
mnew <- lm(((y^trans-1)/trans) ~ x) # Instead of mnew <- lm(y^trans ~ x)
Correct implementation of Box-Cox transformation formula by boxcox() in R:
https://www.r-bloggers.com/on-box-cox-transform-in-regression-models/
A great comparison between Box-Cox transformation and Tukey transformation. http://onlinestatbook.com/2/transformations/box-cox.html
One could also find the Box-Cox transformation formula on Wikipedia: en.wikipedia.org/wiki/Power_transform#Box.E2.80.93Cox_transformation
Please correct me if I misunderstood it.
I also experienced that for example:
This code doesnt work and get the intended block error.
class Foo(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
pub_date = models.DateTimeField('date published')
likes = models.IntegerField()
def __unicode__(self):
return self.title
However, when i press tab before typing return self.title statement, the code works.
class Foo(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
pub_date = models.DateTimeField('date published')
likes = models.IntegerField()
def __unicode__(self):
return self.title
Hope, this will help others.
If I get you right, you need ..\..\src
I would look into any number of online sitemap generation tools. Personally, I've used this one (java based)in the past, but if you do a google search for "sitemap builder" I'm sure you'll find lots of different options.
There is no jquery needed:
var matchedPosition = str.search(/[a-z]/i);
if(matchedPosition != -1) {
alert('found');
}
Pageable has an option to specify sort as well. From the java doc
PageRequest(int page, int size, Sort.Direction direction, String... properties)
Creates a new PageRequest with sort parameters applied.
As long as the browser supports ECMA-262, 5th edition (December 2009), this should work, almost one-liner:
var bFound = myArray.some(function (obj) {
return obj.id === 45;
});
This isn't an alternative solution; rather a suggestion for Brandon's popular answer (seeing as though I don't have enough rep to comment on that answer). If you're uploading large files; you're probably going to get a mmap malloc exception on account of having to read the file into memory to post it to your server.
You can tweak Brandon's code by replacing:
[request setHTTPBody:postbody];
With:
NSInputStream *stream = [[NSInputStream alloc] initWithData:postbody];
[request setHTTPBodyStream:stream];
public void onClick(View v) {
Context context = v.getContext();
CharSequence text = "Message";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
probably, the best approach is to use nullif function.
in general
select
count(nullif(myCol = false, true)), -- count true values
count(nullif(myCol = true, true)), -- count false values
count(myCol);
or in short
select
count(nullif(myCol, true)), -- count false values
count(nullif(myCol, false)), -- count true values
count(myCol);
http://www.postgresql.org/docs/9.0/static/functions-conditional.html
you can try with awk:
awk '/blah/{getline; print}' logfile
Solved with the following example:
public void CheckConsoleOutput()
{
Console.WriteLine("Hello, World!");
Trace.WriteLine("Trace Trace the World");
Debug.WriteLine("Debug Debug World");
Assert.IsTrue(true);
}
After running this test, under 'Test Passed', there is the option to view the output, which will bring up the output window.
.hover()
function accepts two function arguments, one for mouseenter
event and one for mouseleave
event.
A real literal suffixed by M or m is of type decimal (money). For example, the literals 1m, 1.5m, 1e10m, and 123.456M are all of type decimal. This literal is converted to a decimal value by taking the exact value, and, if necessary, rounding to the nearest representable value using banker's rounding. Any scale apparent in the literal is preserved unless the value is rounded or the value is zero (in which latter case the sign and scale will be 0). Hence, the literal 2.900m will be parsed to form the decimal with sign 0, coefficient 2900, and scale 3.
NSPredicate
is only available in iPhone 3.0.
You won't notice that until try to run on device.
I just want to have a button on my website make a PHP file run
<form action="my.php" method="post">
<input type="submit">
</form>
Generally speaking, however, unless you are sending new data to the server to be stored, you would just use a link.
<a href="my.php">run php</a>
(Although you should use link text that describes what happens from the user's point of view, not the servers)
I'm making a simple blog site for myself and I've got the code for the site and the javascript that can take the post I write in a textarea and display it immediately. I just want to link it to a PHP file that will create the permanent blog post on the server so that when I reload the page, the post is still there.
This is tricker.
First, you do need to use a form and POST (since you are sending data to be stored).
Then you need to store the data somewhere. This is normally done using a database. Read up on the PDO library for PHP. It is the standard way to interact with databases.
Then you need to pull the data back out again. The simplest approach here is to use the query string to pass the primary key for the database row with the entry you wish to display.
<a href="showBlogEntry.php?entry_id=123">...</a>
Make sure you also read up on SQL injection and XSS.
To prevent this isue I changed all values in log4j.properties file with directory ${kafka.logs.dir} to my own directory. For example D:/temp/...
No, REST is the way HTTP should be used.
Today we only use a tiny bit of the HTTP protocol's methods – namely GET
and POST
. The REST way to do it is to use all of the protocol's methods.
For example, REST dictates the usage of DELETE
to erase a document (be it a file, state, etc.) behind a URI, whereas, with HTTP, you would misuse a GET
or POST
query like ...product/?delete_id=22
.
In general, I always put my enums in a struct
. I have seen several guidelines including "prefixing".
enum Color
{
Clr_Red,
Clr_Yellow,
Clr_Blue,
};
Always thought this looked more like C
guidelines than C++
ones (for one because of the abbreviation and also because of the namespaces in C++
).
So to limit the scope we now have two alternatives:
I personally tend to use a struct
because it can be used as parameters for template programming while a namespace cannot be manipulated.
Examples of manipulation include:
template <class T>
size_t number() { /**/ }
which returns the number of elements of enum inside the struct T
:)
You're getting None
because list.sort()
it operates in-place, meaning that it doesn't return anything, but modifies the list itself. You only need to call a.sort()
without assigning it to a
again.
There is a built in function sorted()
, which returns a sorted version of the list - a = sorted(a)
will do what you want as well.
This is not a direct answer to your question (which was answered pretty well already). However, having had times bite me on the fundament several times, I cannot stress enough that it would behoove you to look closely at what your time.struct_time object is providing, vs. what other time fields may have.
Assuming you have both a time.struct_time object, and some other date/time string, compare the two, and be sure you are not losing data and inadvertently creating a naive datetime object, when you can do otherwise.
For example, the excellent feedparser module will return a "published" field and may return a time.struct_time object in its "published_parsed" field:
time.struct_time(tm_year=2013, tm_mon=9, tm_mday=9, tm_hour=23, tm_min=57, tm_sec=42, tm_wday=0, tm_yday=252, tm_isdst=0)
Now note what you actually get with the "published" field.
Mon, 09 Sep 2013 19:57:42 -0400
By Stallman's Beard! Timezone information!
In this case, the lazy man might want to use the excellent dateutil module to keep the timezone information:
from dateutil import parser
dt = parser.parse(entry["published"])
print "published", entry["published"])
print "dt", dt
print "utcoffset", dt.utcoffset()
print "tzinfo", dt.tzinfo
print "dst", dt.dst()
which gives us:
published Mon, 09 Sep 2013 19:57:42 -0400
dt 2013-09-09 19:57:42-04:00
utcoffset -1 day, 20:00:00
tzinfo tzoffset(None, -14400)
dst 0:00:00
One could then use the timezone-aware datetime object to normalize all time to UTC or whatever you think is awesome.
To calculate the mean, loop through the list/array of numbers, keeping track of the partial sums and the length. Then return the sum/length
.
double sum = 0.0;
int length = 0;
for( double number : numbers ) {
sum += number;
length++;
}
return sum/length;
Variance is calculated similarly. Standard deviation is simply the square root of the variance:
double stddev = Math.sqrt( variance );
For Query parameters like domain.com/test?format=json&type=mini
format, then you can easily receive it via - req.query.
app.get('/test', function(req, res){
var format = req.query.format,
type = req.query.type;
});
I solved it by doing this:
This happened because I made a change in the filename. I don't know why it didn't work after the change.
Yes you can do like this :
Creating advanced C# custom events
or
The Simplest C# Events Example Imaginable
public class Metronome
{
public event TickHandler Tick;
public EventArgs e = null;
public delegate void TickHandler(Metronome m, EventArgs e);
public void Start()
{
while (true)
{
System.Threading.Thread.Sleep(3000);
if (Tick != null)
{
Tick(this, e);
}
}
}
}
public class Listener
{
public void Subscribe(Metronome m)
{
m.Tick += new Metronome.TickHandler(HeardIt);
}
private void HeardIt(Metronome m, EventArgs e)
{
System.Console.WriteLine("HEARD IT");
}
}
class Test
{
static void Main()
{
Metronome m = new Metronome();
Listener l = new Listener();
l.Subscribe(m);
m.Start();
}
}
This code extracts the YouTube video duration using the YouTube API v3 by passing a video ID. It worked for me.
<?php
function getDuration($videoID){
$apikey = "YOUR-Youtube-API-KEY"; // Like this AIcvSyBsLA8znZn-i-aPLWFrsPOlWMkEyVaXAcv
$dur = file_get_contents("https://www.googleapis.com/youtube/v3/videos?part=contentDetails&id=$videoID&key=$apikey");
$VidDuration =json_decode($dur, true);
foreach ($VidDuration['items'] as $vidTime)
{
$VidDuration= $vidTime['contentDetails']['duration'];
}
preg_match_all('/(\d+)/',$VidDuration,$parts);
return $parts[0][0] . ":" .
$parts[0][1] . ":".
$parts[0][2]; // Return 1:11:46 (i.e.) HH:MM:SS
}
echo getDuration("zyeubYQxHyY"); // Video ID
?>
You can get your domain's own YouTube API key on https://console.developers.google.com and generate credentials for your own requirement.
I'd rather use jQuery:
$('#'+formID).find(':input').attr('disabled', 'disabled');
find() would go much deeper till nth nested child than children(), which looks for immediate children only.
port number 3306 is used for MySQL and tomcat using 8080 port.more port numbers are available for run the servers or software whatever may be for our instant compilation..8080 is default for number so only we are getting port error in eclipse IDE. jvm and tomcat always prefer the 8080.3306 is default port number for MySQL.So only do not want to mention every time as "localhost:3306"
<?php
$dbhost = 'localhost:3306';
//3306 default port number $dbhost='localhost'; is enough to specify the port number
//when we are utilizing xammp default port number is 8080.
$dbuser = 'root';
$dbpass = '';
$db='users';
$conn = mysqli_connect($dbhost, $dbuser, $dbpass,$db) or die ("could not connect to mysql");
// mysqli_select_db("users") or die ("no database");
if(! $conn ) {
die('Could not connect: ' . mysqli_error($conn));
}else{
echo 'Connected successfully';
}
?>
During development the best way to restart server for seeing changes made is to use nodemon
npm install nodemon -g
nodemon [your app name]
nodemon will watch the files in the directory that nodemon was started, and if they change, it will automatically restart your node application.
Check nodemon git repo: https://github.com/remy/nodemon
// 24-hour time to 12-hour time
$time_in_12_hour_format = date("g:i a", strtotime("13:30"));
// 12-hour time to 24-hour time
$time_in_24_hour_format = date("H:i", strtotime("1:30 PM"));
server {
server_name example.com;
root /path/to/root;
location / {
# bla bla
}
location /demo {
alias /path/to/root/production/folder/here;
}
}
If you need to use try_files
inside /demo
you'll need to replace alias
with a root
and do a rewrite because of the bug explained here
If you're desperate (like i was) for tooltips on checkboxes, textboxes and the like, then here is my hackey workaround:
$('input:disabled, button:disabled').after(function (e) {
d = $("<div>");
i = $(this);
d.css({
height: i.outerHeight(),
width: i.outerWidth(),
position: "absolute",
})
d.css(i.offset());
d.attr("title", i.attr("title"));
d.tooltip();
return d;
});
Working examples: http://jsfiddle.net/WB6bM/11/
For what its worth, I believe tooltips on disabled form elements is very important to the UX. If you're preventing somebody from doing something, you should tell them why.
I had the same error when I imported web requests from fiddler captured sessions to Visual Studio webtests. Some POST requests did not have a StringHttpBody tag. I added an empty one to them and the error was gone. Add this after the Headers tag:
<StringHttpBody ContentType="" InsertByteOrderMark="False">
</StringHttpBody>
You should use
-moz-appearance:none;
-webkit-appearance:none;
-o-appearance:none;
Then you get rid of the default checkbox image/style and can style it. Anyway a border will still be there in Firefox
Your understanding is slightly flawed. The diamond operator is a nice feature as you don't have to repeat yourself. It makes sense to define the type once when you declare the type but just doesn't make sense to define it again on the right side. The DRY principle.
Now to explain all the fuzz about defining types. You are right that the type is removed at runtime but once you want to retrieve something out of a List with type definition you get it back as the type you've defined when declaring the list otherwise it would lose all specific features and have only the Object features except when you'd cast the retrieved object to it's original type which can sometimes be very tricky and result in a ClassCastException.
Using List<String> list = new LinkedList()
will get you rawtype warnings.
I've made something like this. I have no idea if its working in IE8. Tested in IE9, Mozilla, Chrome, Edge.
function scroll(toElement, speed) {
var windowObject = window;
var windowPos = windowObject.pageYOffset;
var pointer = toElement.getAttribute('href').slice(1);
var elem = document.getElementById(pointer);
var elemOffset = elem.offsetTop;
var counter = setInterval(function() {
windowPos;
if (windowPos > elemOffset) { // from bottom to top
windowObject.scrollTo(0, windowPos);
windowPos -= speed;
if (windowPos <= elemOffset) { // scrolling until elemOffset is higher than scrollbar position, cancel interval and set scrollbar to element position
clearInterval(counter);
windowObject.scrollTo(0, elemOffset);
}
} else { // from top to bottom
windowObject.scrollTo(0, windowPos);
windowPos += speed;
if (windowPos >= elemOffset) { // scroll until scrollbar is lower than element, cancel interval and set scrollbar to element position
clearInterval(counter);
windowObject.scrollTo(0, elemOffset);
}
}
}, 1);
}
//call example
var navPointer = document.getElementsByClassName('nav__anchor');
for (i = 0; i < navPointer.length; i++) {
navPointer[i].addEventListener('click', function(e) {
scroll(this, 18);
e.preventDefault();
});
}
Description
pointer
—get element and chceck if it has attribute "href" if yes,
get rid of "#"elem
—pointer variable without "#"elemOffset
—offset of "scroll to" element from the top of the pageUseful simple class are forked by me on: https://gist.github.com/kiuz/816e24aa787c2d102dd0
public class OSValidator {
private static String OS = System.getProperty("os.name").toLowerCase();
public static void main(String[] args) {
System.out.println(OS);
if (isWindows()) {
System.out.println("This is Windows");
} else if (isMac()) {
System.out.println("This is Mac");
} else if (isUnix()) {
System.out.println("This is Unix or Linux");
} else if (isSolaris()) {
System.out.println("This is Solaris");
} else {
System.out.println("Your OS is not support!!");
}
}
public static boolean isWindows() {
return OS.contains("win");
}
public static boolean isMac() {
return OS.contains("mac");
}
public static boolean isUnix() {
return (OS.contains("nix") || OS.contains("nux") || OS.contains("aix"));
}
public static boolean isSolaris() {
return OS.contains("sunos");
}
public static String getOS(){
if (isWindows()) {
return "win";
} else if (isMac()) {
return "osx";
} else if (isUnix()) {
return "uni";
} else if (isSolaris()) {
return "sol";
} else {
return "err";
}
}
}
Sadly @Andrés Montoya answer has a flaw which is related to how he compares the obj. I found a solution here which should solve this:
const now = Date.now().valueOf() / 1000
if (typeof decoded.exp !== 'undefined' && decoded.exp < now) {
throw new Error(`token expired: ${JSON.stringify(decoded)}`)
}
if (typeof decoded.nbf !== 'undefined' && decoded.nbf > now) {
throw new Error(`token expired: ${JSON.stringify(decoded)}`)
}
Thanks to thejohnfreeman!
I was using eclipse and after trying all the other answers it didn't work for me.
In the end, what worked for me was moving the ojdb7.jar
to top in the Build Path. This occurs when multiple jars have conflicting same classes.
- Select project in
Project Explorer
- Right click on
Project -> Build Path -> Configure Build Path
- Go to
Order and Export
tab and selectojdbc.jar
- Click button
TOP
to move it to top
You can of course format the result of current_timestamp()
.
Please have a look at the various formatting functions in the official documentation.
With the unobtrusive way:
Jquery Validate Example:
<input type="text" name="email" class="required">
<script>
$(function () {
$("form").validate();
});
</script>
Jquery Validate Unobtrusive Example:
<input type="text" name="email" data-val="true"
data-val-required="This field is required.">
<div class="validation-summary-valid" data-valmsg-summary="true">
<ul><li style="display:none"></li></ul>
</div>
{% ifequal YourVariable ExpectValue %}
# Do something here.
{% endifequal %}
{% ifequal userid 1 %}
Hello No.1
{% endifequal %}
{% ifnotequal username 'django' %}
You are not django!
{% else %}
Hi django!
{% endifnotequal %}
As in the if tag, an {% else %} clause is optional.
The arguments can be hard-coded strings, so the following is valid:
{% ifequal user.username "adrian" %} ... {% endifequal %} An alternative to the ifequal tag is to use the if tag and the == operator.
ifnotequal Just like ifequal, except it tests that the two arguments are not equal.
An alternative to the ifnotequal tag is to use the if tag and the != operator.
{% if somevar >= 1 %}
{% endif %}
{% if "bc" in "abcdef" %}
This appears since "bc" is a substring of "abcdef"
{% endif %}
All of the above can be combined to form complex expressions. For such expressions, it can be important to know how the operators are grouped when the expression is evaluated - that is, the precedence rules. The precedence of the operators, from lowest to highest, is as follows:
https://docs.djangoproject.com/en/dev/ref/templates/builtins/
With this command:
dpkg -s mysql-server | grep Status
Calling typeof null returns a value of “object”, as the special value null is considered to be an empty object reference. Safari through version 5 and Chrome through version 7 have a quirk where calling typeof on a regular expression returns “function” while all other browsers return “object”.
I like a nice simple extension method
public static string ToCsv(this List<string> itemList)
{
return string.Join(",", itemList);
}
Then you can just call the method on the original list:
string CsvString = myList.ToCsv();
Cleaner and easier to read than some of the other suggestions.
If you want to add same space for items, the simplest way is to add top+left padding for RecycleView and right+bottom margins to card items.
dimens.xml
<resources>
<dimen name="divider">1dp</dimen>
</resources>
list_item.xml
<CardView
android:layout_marginBottom="@dimen/divider"
android:layout_marginRight="@dimen/divider">
...
</CardView>
list.xml
<RecyclerView
android:paddingLeft="@dimen/divider"
android:paddingTop="@dimen/divider"
/>
To make the transform work in development (using F5 or CTRL + F5) I drop ctt.exe (https://ctt.codeplex.com/) in the packages folder (packages\ConfigTransform\ctt.exe).
Then I register a pre- or post-build event in Visual Studio...
$(SolutionDir)packages\ConfigTransform\ctt.exe source:"$(ProjectDir)connectionStrings.config" transform:"$(ProjectDir)connectionStrings.$(ConfigurationName).config" destination:"$(ProjectDir)connectionStrings.config"
$(SolutionDir)packages\ConfigTransform\ctt.exe source:"$(ProjectDir)web.config" transform:"$(ProjectDir)web.$(ConfigurationName).config" destination:"$(ProjectDir)web.config"
For the transforms I use SlowCheeta VS extension (https://visualstudiogallery.msdn.microsoft.com/69023d00-a4f9-4a34-a6cd-7e854ba318b5).
In C, fgets(), and you need to know the maximum size to prevent truncation.
You can also use insertAdjacentHTML
function:
const select = document.querySelector('select')
const value = 'bmw'
const label = 'BMW'
select.insertAdjacentHTML('beforeend', `
<option value="${value}">${label}</option>
`)
I leave you a utility function to inmutably update objects
/**
* Inmutable update object
* @param {Object} oldObject Object to update
* @param {Object} updatedValues Object with new values
* @return {Object} New Object with updated values
*/
export const updateObject = (oldObject, updatedValues) => {
return {
...oldObject,
...updatedValues
};
};
So you can use it like this
const MyComponent = props => {
const [orderForm, setOrderForm] = useState({
specialities: {
elementType: "select",
elementConfig: {
options: [],
label: "Specialities"
},
touched: false
}
});
// I want to update the options list, to fill a select element
// ---------- Update with fetched elements ---------- //
const updateSpecialitiesData = data => {
// Inmutably update elementConfig object. i.e label field is not modified
const updatedOptions = updateObject(
orderForm[formElementKey]["elementConfig"],
{
options: data
}
);
// Inmutably update the relevant element.
const updatedFormElement = updateObject(orderForm[formElementKey], {
touched: true,
elementConfig: updatedOptions
});
// Inmutably update the relevant element in the state.
const orderFormUpdated = updateObject(orderForm, {
[formElementKey]: updatedFormElement
});
setOrderForm(orderFormUpdated);
};
useEffect(() => {
// some code to fetch data
updateSpecialitiesData.current("specialities",fetchedData);
}, [updateSpecialitiesData]);
// More component code
}
If not you have more utilities here : https://es.reactjs.org/docs/update.html
What am I doing wrong?
$(...)
holds the value, not the exit status, that is why this approach is wrong. However, in this specific case, it does indeed work because sysa
will be printed which makes the test statement come true. However, if ! [ $(true) ]; then echo false; fi
would always print false
because the true
command does not write anything to stdout (even though the exit code is 0). That is why it needs to be rephrased to if ! grep ...; then
.
An alternative would be cat /etc/passwd | grep "sysa" || echo error
. Edit: As Alex pointed out, cat is useless here: grep "sysa" /etc/passwd || echo error
.
Found the other answers rather confusing, hope this helps someone.
If performance is not a major concern, you can also use any of these methods:
(In case you wanted the hash string to be in upper case, replace "x2"
with "X2"
.)
public static string SHA256ToString(string s)
{
using (var alg = SHA256.Create())
return string.Join(null, alg.ComputeHash(Encoding.UTF8.GetBytes(s)).Select(x => x.ToString("x2")));
}
or:
public static string SHA256ToString(string s)
{
using (var alg = SHA256.Create())
return alg.ComputeHash(Encoding.UTF8.GetBytes(s)).Aggregate(new StringBuilder(), (sb, x) => sb.Append(x.ToString("x2"))).ToString();
}
public class UrlContent{
public static void main(String[] args) {
URL url;
try {
// get URL content
String a="http://localhost:8080/TestWeb/index.jsp";
url = new URL(a);
URLConnection conn = url.openConnection();
// open the stream and put it into BufferedReader
BufferedReader br = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String inputLine;
while ((inputLine = br.readLine()) != null) {
System.out.println(inputLine);
}
br.close();
System.out.println("Done");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Soln 1)
mysql> select group_concat('truncate',' ',table_name,';') from information_schema.tables where table_schema="db_name" into outfile '/tmp/a.txt';
mysql> /tmp/a.txt;
Soln 2)
- Export only structure of a db
- drop the database
- import the .sql of structure
-- edit ----
earlier in solution 1, i had mentioned concat() instead of group_concat() which would have not returned the desired result
map and flatMap are similar, in the sense they take a line from the input RDD and apply a function on it. The way they differ is that the function in map returns only one element, while function in flatMap can return a list of elements (0 or more) as an iterator.
Also, the output of the flatMap is flattened. Although the function in flatMap returns a list of elements, the flatMap returns an RDD which has all the elements from the list in a flat way (not a list).
Minimal runnable POSIX read
+ write
example
Usage:
get two computers on a LAN.
For example, this will work if both computers are connected to your home router in most cases, which is how I tested it.
On the server computer:
Find the server local IP with ifconfig
, e.g. 192.168.0.10
Run:
./server output.tmp 12345
On the client computer:
printf 'ab\ncd\n' > input.tmp
./client input.tmp 192.168.0.10 12345
Outcome: a file output.tmp
is created on the sever computer containing 'ab\ncd\n'
!
server.c
/*
Receive a file over a socket.
Saves it to output.tmp by default.
Interface:
./executable [<output_file> [<port>]]
Defaults:
- output_file: output.tmp
- port: 12345
*/
#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h> /* getprotobyname */
#include <netinet/in.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <unistd.h>
int main(int argc, char **argv) {
char *file_path = "output.tmp";
char buffer[BUFSIZ];
char protoname[] = "tcp";
int client_sockfd;
int enable = 1;
int filefd;
int i;
int server_sockfd;
socklen_t client_len;
ssize_t read_return;
struct protoent *protoent;
struct sockaddr_in client_address, server_address;
unsigned short server_port = 12345u;
if (argc > 1) {
file_path = argv[1];
if (argc > 2) {
server_port = strtol(argv[2], NULL, 10);
}
}
/* Create a socket and listen to it.. */
protoent = getprotobyname(protoname);
if (protoent == NULL) {
perror("getprotobyname");
exit(EXIT_FAILURE);
}
server_sockfd = socket(
AF_INET,
SOCK_STREAM,
protoent->p_proto
);
if (server_sockfd == -1) {
perror("socket");
exit(EXIT_FAILURE);
}
if (setsockopt(server_sockfd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable)) < 0) {
perror("setsockopt(SO_REUSEADDR) failed");
exit(EXIT_FAILURE);
}
server_address.sin_family = AF_INET;
server_address.sin_addr.s_addr = htonl(INADDR_ANY);
server_address.sin_port = htons(server_port);
if (bind(
server_sockfd,
(struct sockaddr*)&server_address,
sizeof(server_address)
) == -1
) {
perror("bind");
exit(EXIT_FAILURE);
}
if (listen(server_sockfd, 5) == -1) {
perror("listen");
exit(EXIT_FAILURE);
}
fprintf(stderr, "listening on port %d\n", server_port);
while (1) {
client_len = sizeof(client_address);
puts("waiting for client");
client_sockfd = accept(
server_sockfd,
(struct sockaddr*)&client_address,
&client_len
);
filefd = open(file_path,
O_WRONLY | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR);
if (filefd == -1) {
perror("open");
exit(EXIT_FAILURE);
}
do {
read_return = read(client_sockfd, buffer, BUFSIZ);
if (read_return == -1) {
perror("read");
exit(EXIT_FAILURE);
}
if (write(filefd, buffer, read_return) == -1) {
perror("write");
exit(EXIT_FAILURE);
}
} while (read_return > 0);
close(filefd);
close(client_sockfd);
}
return EXIT_SUCCESS;
}
client.c
/*
Send a file over a socket.
Interface:
./executable [<input_path> [<sever_hostname> [<port>]]]
Defaults:
- input_path: input.tmp
- server_hostname: 127.0.0.1
- port: 12345
*/
#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h> /* getprotobyname */
#include <netinet/in.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <unistd.h>
int main(int argc, char **argv) {
char protoname[] = "tcp";
struct protoent *protoent;
char *file_path = "input.tmp";
char *server_hostname = "127.0.0.1";
char *server_reply = NULL;
char *user_input = NULL;
char buffer[BUFSIZ];
in_addr_t in_addr;
in_addr_t server_addr;
int filefd;
int sockfd;
ssize_t i;
ssize_t read_return;
struct hostent *hostent;
struct sockaddr_in sockaddr_in;
unsigned short server_port = 12345;
if (argc > 1) {
file_path = argv[1];
if (argc > 2) {
server_hostname = argv[2];
if (argc > 3) {
server_port = strtol(argv[3], NULL, 10);
}
}
}
filefd = open(file_path, O_RDONLY);
if (filefd == -1) {
perror("open");
exit(EXIT_FAILURE);
}
/* Get socket. */
protoent = getprotobyname(protoname);
if (protoent == NULL) {
perror("getprotobyname");
exit(EXIT_FAILURE);
}
sockfd = socket(AF_INET, SOCK_STREAM, protoent->p_proto);
if (sockfd == -1) {
perror("socket");
exit(EXIT_FAILURE);
}
/* Prepare sockaddr_in. */
hostent = gethostbyname(server_hostname);
if (hostent == NULL) {
fprintf(stderr, "error: gethostbyname(\"%s\")\n", server_hostname);
exit(EXIT_FAILURE);
}
in_addr = inet_addr(inet_ntoa(*(struct in_addr*)*(hostent->h_addr_list)));
if (in_addr == (in_addr_t)-1) {
fprintf(stderr, "error: inet_addr(\"%s\")\n", *(hostent->h_addr_list));
exit(EXIT_FAILURE);
}
sockaddr_in.sin_addr.s_addr = in_addr;
sockaddr_in.sin_family = AF_INET;
sockaddr_in.sin_port = htons(server_port);
/* Do the actual connection. */
if (connect(sockfd, (struct sockaddr*)&sockaddr_in, sizeof(sockaddr_in)) == -1) {
perror("connect");
return EXIT_FAILURE;
}
while (1) {
read_return = read(filefd, buffer, BUFSIZ);
if (read_return == 0)
break;
if (read_return == -1) {
perror("read");
exit(EXIT_FAILURE);
}
/* TODO use write loop: https://stackoverflow.com/questions/24259640/writing-a-full-buffer-using-write-system-call */
if (write(sockfd, buffer, read_return) == -1) {
perror("write");
exit(EXIT_FAILURE);
}
}
free(user_input);
free(server_reply);
close(filefd);
exit(EXIT_SUCCESS);
}
Further comments
Possible improvements:
Currently output.tmp
gets overwritten each time a send is done.
This begs for the creation of a simple protocol that allows to pass a filename so that multiple files can be uploaded, e.g.: filename up to the first newline character, max filename 256 chars, and the rest until socket closure are the contents. Of course, that would require sanitation to avoid a path transversal vulnerability.
Alternatively, we could make a server that hashes the files to find filenames, and keeps a map from original paths to hashes on disk (on a database).
Only one client can connect at a time.
This is specially harmful if there are slow clients whose connections last for a long time: the slow connection halts everyone down.
One way to work around that is to fork a process / thread for each accept
, start listening again immediately, and use file lock synchronization on the files.
Add timeouts, and close clients if they take too long. Or else it would be easy to do a DoS.
poll
or select
are some options: How to implement a timeout in read function call?
A simple HTTP wget
implementation is shown at: How to make an HTTP get request in C without libcurl?
Tested on Ubuntu 15.10.
On modern linux the best approach (for me) is to use xinetd :
1) create /etc/xinet.d/tomcat-http
service http
{
disable = no
socket_type = stream
user = root
wait = no
redirect = 127.0.0.1 8080
}
2) create /etc/xinet.d/tomcat-https
service https
{
disable = no
socket_type = stream
user = root
wait = no
redirect = 127.0.0.1 8443
}
3) chkconfig xinetd on
4) /etc/init.d/xinetd start
I know this question is old but I ran across it and I know other people might have the same problem. All these answers are okay but do not give proper detail or actual TRUE advice.
When wanting to style a specific section of a paragraph use the span tag.
<p><span style="font-weight:900">Andy Warhol</span> (August 6, 1928 - February 22, 1987)
was an American artist who was a leading figure in the visual art movement known as pop
art.</p>
Andy Warhol (August 6, 1928 - February 22, 1987) was an American artist who was a leading figure in the visual art movement known as pop art.
As the code shows, the span tag styles on the specified words: "Andy Warhol". You can further style a word using any CSS font styling codes.
{font-weight; font-size; text-decoration; font-family; margin; color}, etc.
Any of these and more can be used to style a word, group of words, or even specified paragraphs without having to add a class to the CSS Style Sheet Doc. I hope this helps someone!
HashSet is O(1)
Not sure if it is faster than the existing comparison
private static HashSet<char> ValidChars = new HashSet<char>() { 'a', 'b', 'c', 'A', 'B', 'C', '1', '2', '3', '_' };
public static string RemoveSpecialCharacters(string str)
{
StringBuilder sb = new StringBuilder(str.Length / 2);
foreach (char c in str)
{
if (ValidChars.Contains(c)) sb.Append(c);
}
return sb.ToString();
}
I tested and this in not faster than the accepted answer.
I will leave it up as if you needed a configurable set of characters this would be a good solution.
To store the password (PY3):
import hashlib, os
password_salt = os.urandom(32).hex()
password = '12345'
hash = hashlib.sha512()
hash.update(('%s%s' % (password_salt, password)).encode('utf-8'))
password_hash = hash.hexdigest()
A quick and easy way is to use jQuery and do this:
var $eles = $(":input[name^='q1_']").css("color","yellow");
That will grab all elements whose name attribute starts with 'q1_'. To convert the resulting collection of jQuery objects to a DOM collection, do this:
var DOMeles = $eles.get();
see http://api.jquery.com/attribute-starts-with-selector/
In pure DOM, you could use getElementsByTagName
to grab all input elements, and loop through the resulting array. Elements with name
starting with 'q1_' get pushed to another array:
var eles = [];
var inputs = document.getElementsByTagName("input");
for(var i = 0; i < inputs.length; i++) {
if(inputs[i].name.indexOf('q1_') == 0) {
eles.push(inputs[i]);
}
}
If you are using .Net 4.0 (or less):
class BetterWebClient : WebClient
{
private WebRequest _Request = null;
protected override WebRequest GetWebRequest(Uri address)
{
this._Request = base.GetWebRequest(address);
if (this._Request is HttpWebRequest)
{
((HttpWebRequest)this._Request).AllowAutoRedirect = false;
}
return this._Request;
}
public HttpStatusCode StatusCode()
{
HttpStatusCode result;
if (this._Request == null)
{
throw (new InvalidOperationException("Unable to retrieve the status
code, maybe you haven't made a request yet."));
}
HttpWebResponse response = base.GetWebResponse(this._Request)
as HttpWebResponse;
if (response != null)
{
result = response.StatusCode;
}
else
{
throw (new InvalidOperationException("Unable to retrieve the status
code, maybe you haven't made a request yet."));
}
return result;
}
}
If you are using .Net 4.5.X or newer, switch to HttpClient:
var response = await client.GetAsync("http://www.contoso.com/");
var statusCode = response.StatusCode;
I created a simple extension method that does not need a check on Enum
types:
public static bool HasAnyFlag(this Enum value, Enum flags)
{
return
value != null && ((Convert.ToInt32(value) & Convert.ToInt32(flags)) != 0);
}
It also works on nullable enums. The standard HasFlag
method does not, so I created an extension to cover that too.
public static bool HasFlag(this Enum value, Enum flags)
{
int f = Convert.ToInt32(flags);
return
value != null && ((Convert.ToInt32(value) & f) == f);
}
A simple test:
[Flags]
enum Option
{
None = 0x00,
One = 0x01,
Two = 0x02,
Three = One | Two,
Four = 0x04
}
[TestMethod]
public void HasAnyFlag()
{
Option o1 = Option.One;
Assert.AreEqual(true, o1.HasAnyFlag(Option.Three));
Assert.AreEqual(false, o1.HasFlag(Option.Three));
o1 |= Option.Two;
Assert.AreEqual(true, o1.HasAnyFlag(Option.Three));
Assert.AreEqual(true, o1.HasFlag(Option.Three));
}
[TestMethod]
public void HasAnyFlag_NullableEnum()
{
Option? o1 = Option.One;
Assert.AreEqual(true, o1.HasAnyFlag(Option.Three));
Assert.AreEqual(false, o1.HasFlag(Option.Three));
o1 |= Option.Two;
Assert.AreEqual(true, o1.HasAnyFlag(Option.Three));
Assert.AreEqual(true, o1.HasFlag(Option.Three));
}
Enjoy!
What I did:
return to clients:
byte[] result = ****encrypted data****;
String str = Base64.encodeBase64String(result);
return str;
receive from clients:
byte[] bytes = Base64.decodeBase64(str);
your data will be transferred in this format:
OpfyN9paAouZ2Pw+gDgGsDWzjIphmaZbUyFx5oRIN1kkQ1tDbgoi84dRfklf1OZVdpAV7TonlTDHBOr93EXIEBoY1vuQnKXaG+CJyIfrCWbEENJ0gOVBr9W3OlFcGsZW5Cf9uirSmx/JLLxTrejZzbgq3lpToYc3vkyPy5Y/oFWYljy/3OcC/S458uZFOc/FfDqWGtT9pTUdxLDOwQ6EMe0oJBlMXm8J2tGnRja4F/aVHfQddha2nUMi6zlvAm8i9KnsWmQG//ok25EHDbrFBP2Ia/6Bx/SGS4skk/0couKwcPVXtTq8qpNh/aYK1mclg7TBKHfF+DHppwd30VULpA==
You can use the Background Panel class. It does the custom painting as explained above but gives you options to display the image scaled, tiled or normal size. It also explains how you can use a JLabel with an image as the content pane for the frame.
Well, just do this and your problem is solved :
document.getElementById('buttonLED'+id).setAttribute('onclick','writeLED(1,1)')
Have a nice day XD
Escape the | character using a backtick
get-content c:\new\temp_*.txt | select-string -pattern 'H`|159' -notmatch | Out-File c:\new\newfile.txt
If you are really about to work on multi-gigabyte text files then do not use PowerShell. Even if you find a way to read it faster processing of huge amount of lines will be slow in PowerShell anyway and you cannot avoid this. Even simple loops are expensive, say for 10 million iterations (quite real in your case) we have:
# "empty" loop: takes 10 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) {} }
# "simple" job, just output: takes 20 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) { $i } }
# "more real job": 107 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) { $i.ToString() -match '1' } }
UPDATE: If you are still not scared then try to use the .NET reader:
$reader = [System.IO.File]::OpenText("my.log")
try {
for() {
$line = $reader.ReadLine()
if ($line -eq $null) { break }
# process the line
$line
}
}
finally {
$reader.Close()
}
UPDATE 2
There are comments about possibly better / shorter code. There is nothing wrong with the original code with for
and it is not pseudo-code. But the shorter (shortest?) variant of the reading loop is
$reader = [System.IO.File]::OpenText("my.log")
while($null -ne ($line = $reader.ReadLine())) {
$line
}
You can add your URLs to VerifyCsrfToken.php middleware. The URLs will be excluded from CSRF verification.
protected $except = [
"your url",
"your url/abc"
];
New Note: You probably don't want or need to do this. What you probably want to do is just put those types of command dependencies for build/test etc. in the devDependencies
section of your package.json. Anytime you use something from scripts
in package.json your devDependencies commands (in node_modules/.bin) act as if they are in your path.
For example:
npm i --save-dev mocha # Install test runner locally
npm i --save-dev babel # Install current babel locally
Then in package.json:
// devDependencies has mocha and babel now
"scripts": {
"test": "mocha",
"build": "babel -d lib src",
"prepublish": "babel -d lib src"
}
Then at your command prompt you can run:
npm run build # finds babel
npm test # finds mocha
npm publish # will run babel first
But if you really want to install globally, you can add a preinstall in the scripts section of the package.json:
"scripts": {
"preinstall": "npm i -g themodule"
}
So actually my npm install executes npm install again .. which is weird but seems to work.
Note: you might have issues if you are using the most common setup for npm
where global Node package installs required sudo
. One option is to change your npm
configuration so this isn't necessary:
npm config set prefix ~/npm
, add $HOME/npm/bin to $PATH by appending export PATH=$HOME/npm/bin:$PATH
to your ~/.bashrc
.
Based on Anastasiya's answer. I think this is the shortest vba command:
Option Explicit
Sub Sample()
Dim sColumnLetter as String
Dim iColumnNumber as Integer
sColumnLetter = "C"
iColumnNumber = Columns(sColumnLetter).Column
MsgBox "The column number is " & iColumnNumber
End Sub
Caveat: The only condition for this code to work is that a worksheet is active, because Columns
is equivalent to ActiveSheet.Columns
. ;)
Use the range's NumberFormat
property to force the format of the range like this:
Sheet1.Range("A2", "A50000").NumberFormat = "yyyy-mm-dd"
@gerrit_hoekstra wrote: "However, the value of an auto-increment field is only available to an "AFTER-INSERT" trigger - it defaults to 0 in the BEFORE-case."
That is correct but you can select the auto-increment field value that will be inserted by the subsequent INSERT quite easily. This is an example that works:
CREATE DEFINER = CURRENT_USER TRIGGER `lgffin`.`variable_BEFORE_INSERT` BEFORE INSERT
ON `variable` FOR EACH ROW
BEGIN
SET NEW.prefixed_id = CONCAT(NEW.fixed_variable, (SELECT `AUTO_INCREMENT`
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'lgffin'
AND TABLE_NAME = 'variable'));
END
Inline:
<select
onchange="var val = this.options[this.selectedIndex].value;
this.form.color[1].style.display=(val=='others')?'block':'none'">
I used to do this
In the head (give the select an ID):
window.onload=function() {
var sel = document.getElementById('color');
sel.onchange=function() {
var val = this.options[this.selectedIndex].value;
if (val == 'others') {
var newOption = prompt('Your own color','');
if (newOption) {
this.options[this.options.length-1].text = newOption;
this.options[this.options.length-1].value = newOption;
this.options[this.options.length] = new Option('other','other');
}
}
}
}
Use #include <windows.h>
instead of #include <windef.h>
.
From the windows.h
wikipedia page:
There are a number of child header files that are automatically included with
windows.h
. Many of these files cannot simply be included by themselves (they are not self-contained), because of dependencies.
windef.h
is one of the files automatically included with windows.h
.
def oneFunction(lists):
category=random.choice(list(lists.keys()))
word=random.choice(lists[category])
return word
def anotherFunction():
for letter in word:
print("_",end=" ")
Yes, if you don't mind the extra newlines being inserted:
conn.exec 'select attr1, attr2, attr3, attr4, attr5, attr6, attr7
from table1, table2, table3, etc, etc, etc, etc, etc,
where etc etc etc etc etc etc etc etc etc etc etc etc etc'
Alternatively you can use a heredoc:
conn.exec <<-eos
select attr1, attr2, attr3, attr4, attr5, attr6, attr7
from table1, table2, table3, etc, etc, etc, etc, etc,
where etc etc etc etc etc etc etc etc etc etc etc etc etc
eos
I would recommend you to have another class called File.
public class File
{
private string filename;
public File(string filename)
{
this.filename= filename;
}
public void download()
{
// download code using filename
}
}
And in your thread creation code, you instantiate a new file:
string filename = "my_file_name";
myFile = new File(filename);
ThreadStart threadDelegate = new ThreadStart(myFile.download);
Thread newThread = new Thread(threadDelegate);
Add text-align: center;
to the parent tag of <canvas>
. That's it.
Example:
<div style="text-align: center">
<canvas width="300" height="300">
<!--your canvas code -->
</canvas>
</div>
Go to management studio and do everything you describe, only instead of clicking OK, click on Script. It will show the code it will run which you can then incorporate in your scripts.
In this case, you want:
ALTER DATABASE [MyDatabase] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
If checkout master
was the last thing you did, then the reflog entry HEAD@{1}
will contain your commits (otherwise use git reflog
or git log -p
to find them). Use git merge HEAD@{1}
to fast forward them into master.
EDIT:
As noted in the comments, Git Ready has a great article on this.
git reflog
and git reflog --all
will give you the commit hashes of the mis-placed commits.
Source: http://gitready.com/intermediate/2009/02/09/reflog-your-safety-net.html
A basic for statement includes
ForInit
)boolean
or Boolean
(ForStatement
) andForUpdate
)If you need multiple conditions to build your ForStatement, then use the standard logic operators (&&
, ||
, |
, ...) but - I suggest to use a private method if it gets to complicated:
for (int i = 0, j = 0; isMatrixElement(i,j,myArray); i++, j++) {
// ...
}
and
private boolean isMatrixElement(i,j,myArray) {
return (i < myArray.length) && (j < myArray[i].length); // stupid dummy code!
}