<url-pattern>/*</url-pattern>
The /*
on a servlet overrides all other servlets, including all servlets provided by the servletcontainer such as the default servlet and the JSP servlet. Whatever request you fire, it will end up in that servlet. This is thus a bad URL pattern for servlets. Usually, you'd like to use /*
on a Filter
only. It is able to let the request continue to any of the servlets listening on a more specific URL pattern by calling FilterChain#doFilter()
.
<url-pattern>/</url-pattern>
The /
doesn't override any other servlet. It only replaces the servletcontainer's builtin default servlet for all requests which doesn't match any other registered servlet. This is normally only invoked on static resources (CSS/JS/image/etc) and directory listings. The servletcontainer's builtin default servlet is also capable of dealing with HTTP cache requests, media (audio/video) streaming and file download resumes. Usually, you don't want to override the default servlet as you would otherwise have to take care of all its tasks, which is not exactly trivial (JSF utility library OmniFaces has an open source example). This is thus also a bad URL pattern for servlets. As to why JSP pages doesn't hit this servlet, it's because the servletcontainer's builtin JSP servlet will be invoked, which is already by default mapped on the more specific URL pattern *.jsp
.
<url-pattern></url-pattern>
Then there's also the empty string URL pattern
. This will be invoked when the context root is requested. This is different from the <welcome-file>
approach that it isn't invoked when any subfolder is requested. This is most likely the URL pattern you're actually looking for in case you want a "home page servlet". I only have to admit that I'd intuitively expect the empty string URL pattern
and the slash URL pattern /
be defined exactly the other way round, so I can understand that a lot of starters got confused on this. But it is what it is.
In case you actually intend to have a front controller servlet, then you'd best map it on a more specific URL pattern like *.html
, *.do
, /pages/*
, /app/*
, etc. You can hide away the front controller URL pattern and cover static resources on a common URL pattern like /resources/*
, /static/*
, etc with help of a servlet filter. See also How to prevent static resources from being handled by front controller servlet which is mapped on /*. Noted should be that Spring MVC has a builtin static resource servlet, so that's why you could map its front controller on /
if you configure a common URL pattern for static resources in Spring. See also How to handle static content in Spring MVC?
You can also specify <error-page>
for exceptions using <exception-type>
, eg below:
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/errorpages/exception.html</location>
</error-page>
Or map a error code using <error-code>
:
<error-page>
<error-code>404</error-code>
<location>/errorpages/404error.html</location>
</error-page>
--> (Absence of load-on-start-up) tag First of all when ever servlet is deployed in the server, It is the responsibility of the server to creates the servlet object. Eg: Suppose Servlet is deployed in the server ,(Servlet Object is not available in server) client sends the request to the servlet for the first time then server creates the servlet object with help of default constructor and immediately calls init() . From that when ever client sends the request only service method will get executed as object is already available
If load-on-start-up tag is used in deployment descriptor: At the time of deployment itself the server creates the servlet object for the servlets based on the positive value provided in between the tags. The Creation of objects for the servlet classes will follow from 0-128 0 number servlet will be created first and followed by other numbers.
If we provide same value for two servlets in web.xml then creation of objects will be done based on the position of classes in web.xml also varies from server to server.
If we provide negative value in between the load on start up tag then server wont create the servlet object.
If we dont use load on start up tag in web.xml, then project is deployed when ever client sends the request for the first time server creates the object and server is responsible for calling its life cycle methods. Then if a .class is been modified in the server(tomcat). again client sends the request for modified servlet but in case of tomcat new object will not created and server make use of existing object unless restart of server takes place. But in class of web-logic when ever .class file is modified in the server with out restarting the server if it receives a request then server calls the destroy method on existing servlet and creates a new servlet object and calls init() for its initilization.
I know this is a bit old but the answer in short would be <load-on-startup> both occurrences have given the same id which is 1 twice. This may confuse loading sequence.
I think currently the application-context.xml file is into src/main/resources AND the social.properties file is into src/main/java... so when you package (mvn package) or when you run tomcat (mvn tomcat:run) your social.properties disappeared (I know you said when you checked into the .war the files are here... but your exception says the opposite).
The solution is simply to put all your configuration files (application-context.xml and social.properties) into src/main/resources to follow the maven standard structure.
You can always refer to resources in your application directly by their JNDI name as configured in the container, but if you do so, essentially you are wiring the container-specific name into your code. This has some disadvantages, for example, if you'll ever want to change the name later for some reason, you'll need to update all the references in all your applications, and then rebuild and redeploy them.
<resource-ref>
introduces another layer of indirection: you specify the name you want to use in the web.xml, and, depending on the container, provide a binding in a container-specific configuration file.
So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB
name. The container finds that web.xml has a <resource-ref>
element for jdbc/primaryDB
, so it will look into the container-specific configuration, that contains something similar to the following:
<resource-ref>
<res-ref-name>jdbc/primaryDB</res-ref-name>
<jndi-name>jdbc/PrimaryDBInTheContainer</jndi-name>
</resource-ref>
Finally, it returns the object registered under the name of jdbc/PrimaryDBInTheContainer
.
The idea is that specifying resources in the web.xml has the advantage of separating the developer role from the deployer role. In other words, as a developer, you don't have to know what your required resources are actually called in production, and as the guy deploying the application, you will have a nice list of names to map to real resources.
Hacky way:
You could increase the session timeout programmatically when a large up-/download is expected.
session.setMaxInactiveInterval(TWO_HOURS_IN_SECONDS)
When the process ends, you could set the timeout back to its default.
But.. when you are on Java EE, and the up-/download doesn't take a complete hour, the better way was to run the tasks asynchronous (via JMS e.g.).
And if you would like to use an existing context, rather than a new context which would be loaded from xml configuration by org.springframework.web.context.ContextLoaderListener, then see -> https://stackoverflow.com/a/40694787/3004747
The web.xml
file is the deployment descriptor for a Servlet-based Java web application (which most Java web apps are). Among other things, it declares which Servlets exist and which URLs they handle.
The part you cite defines a Servlet Filter. Servlet filters can do all kinds of preprocessing on requests. Your specific example is a filter had the Wicket framework uses as its entry point for all requests because filters are in some way more powerful than Servlets.
In my case the servlet name defined in the web.xml was not same as the sevlet name in the servlet mapping tag. I have corrected this and the WAR was deployed successfully.
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
I saw a nice solution in this stackoverflow link that may help the readers of the defulat servlet handling issue by using the empty string URL pattern "" :
@WebServlet("")
or
<servlet-mapping>
<servlet-name>yourHomeServlet</servlet-name>
<url-pattern></url-pattern> <!-- Yes, empty string! -->
</servlet-mapping>
Servlet-mapping has two child tags, url-pattern and servlet-name. url-pattern specifies the type of urls for which, the servlet given in servlet-name should be called. Be aware that, the container will use case-sensitive for string comparisons for servlet matching.
First specification of url-pattern
a web.xml
file for the server context on the servlet container at server .com matches the pattern in <url-pattern>/status/*</url-pattern>
as follows:
http://server.com/server/status/synopsis = Matches
http://server.com/server/status/complete?date=today = Matches
http://server.com/server/status = Matches
http://server.com/server/server1/status = Does not match
Second specification of url-pattern
A context located at the path /examples on the Agent at example.com matches the pattern in <url-pattern>*.map</url-pattern>
as follows:
http://server.com/server/US/Oregon/Portland.map = Matches
http://server.com/server/US/server/Seattle.map = Matches
http://server.com/server/Paris.France.map = Matches
http://server.com/server/US/Oregon/Portland.MAP = Does not match, the extension is uppercase
http://example.com/examples/interface/description/mail.mapi =Does not match, the extension is mapi rather than map`
Third specification of url-mapping
,A mapping that contains the pattern <url-pattern>/</url-pattern>
matches a request if no other pattern matches. This is the default mapping. The servlet mapped to this pattern is called the default servlet.
The default mapping is often directed to the first page of an application. Explicitly providing a default mapping also ensures that malformed URL requests into the application return are handled by the application rather than returning an error.
The servlet-mapping element below maps the server
servlet instance to the default mapping.
<servlet-mapping>
<servlet-name>server</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
For the context that contains this element, any request that is not handled by another mapping is forwarded to the server
servlet.
And Most importantly we should Know about Rule for URL path mapping
Reference URL Pattern
You can also load the context while defining the servlet itself (WebApplicationContext)
<servlet>
<servlet-name>admin</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring/*.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>admin</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
rather than (ApplicationContext)
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
or can do both together.
Drawback of just using WebApplicationContext is that it will load context only for this particular Spring entry point (DispatcherServlet
) where as with above mentioned methods context will be loaded for multiple entry points (Eg. Webservice Servlet, REST servlet
etc)
Context loaded by ContextLoaderListener
will infact be a parent context to that loaded specifically for DisplacherServlet . So basically you can load all your business service, data access or repository beans in application context and separate out your controller, view resolver beans to WebApplicationContext.
import org.springframework.core.Ordered;
public class MyFilter implements Filter, Ordered {
@Override
public void init(FilterConfig filterConfig) {
// do something
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
// do something
}
@Override
public void destroy() {
// do something
}
@Override
public int getOrder() {
return -100;
}
}
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan
public class MyAutoConfiguration {
@Bean
public MyFilter myFilter() {
return new MyFilter();
}
}
private void alarmEventInsert(DriveDetail driveDetail, String vehicleRegNo, int organizationId) {
final String ALARM_EVENT_INS_SQL = "INSERT INTO alarm_event (event_code,param1,param2,org_id,created_time) VALUES (?,?,?,?,?)";
CachedConnection conn = JDatabaseManager.getConnection();
PreparedStatement ps = null;
ResultSet generatedKeys = null;
try {
ps = conn.prepareStatement(ALARM_EVENT_INS_SQL, ps.RETURN_GENERATED_KEYS);
ps.setInt(1, driveDetail.getEventCode());
ps.setString(2, vehicleRegNo);
ps.setString(3, null);
ps.setInt(4, organizationId);
ps.setString(5, driveDetail.getCreateTime());
ps.execute();
generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
driveDetail.setStopDuration(generatedKeys.getInt(1));
}
} catch (SQLException e) {
e.printStackTrace();
logger.error("Error inserting into alarm_event : {}", e
.getMessage());
logger.info(ps.toString());
} finally {
if (ps != null) {
try {
if (ps != null)
ps.close();
} catch (SQLException e) {
logger.error("Error closing prepared statements : {}", e
.getMessage());
}
}
}
JDatabaseManager.freeConnection(conn);
}
Not sure about the (errors="ignore") option but it seems to work for files with strange Unicode characters.
with open(fName, "rb") as fData:
lines = fData.read().splitlines()
lines = [line.decode("utf-8", errors="ignore") for line in lines]
Could it be a one to many relationship between the left and right tables?
If you want to send emails simultaneously to all the admins, you can do something like this:
In your .env file add all the emails as comma separated values:
[email protected],[email protected],[email protected]
so when you going to send the email just do this (yes! the 'to' method of message builder instance accepts an array):
So,
$to = explode(',', env('ADMIN_EMAILS'));
and...
$message->to($to);
will now send the mail to all the admins.
Here is a solution which is an improvement over this one.
public static bool HasSameElementsAs<T>(
this IEnumerable<T> first,
IEnumerable<T> second,
IEqualityComparer<T> comparer = null)
{
var firstMap = first
.GroupBy(x => x, comparer)
.ToDictionary(x => x.Key, x => x.Count(), comparer);
var secondMap = second
.GroupBy(x => x, comparer)
.ToDictionary(x => x.Key, x => x.Count(), comparer);
if (firstMap.Keys.Count != secondMap.Keys.Count)
return false;
if (firstMap.Keys.Any(k1 => !secondMap.ContainsKey(k1)))
return false;
return firstMap.Keys.All(x => firstMap[x] == secondMap[x]);
}
Simply use syntax below get and set
GET
//Script
var a = $("#selectIndex").val();
here a variable will hold the value of hiddenfield(selectindex)
Server side
<asp:HiddenField ID="selectIndex" runat="server" Value="0" />
SET
var a =10;
$("#selectIndex").val(a);
If you are using Python 3, you can use urllib.parse
url = """example.com?title=%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D0%B2%D0%B0%D1%8F+%D0%B7%D0%B0%D1%89%D0%B8%D1%82%D0%B0"""
import urllib.parse
urllib.parse.unquote(url)
gives:
'example.com?title=????????+??????'
This is asking for your MySQL username and password.
You should enter these details, which will default to "root" and "" (i.e.: nothing) if you've not specified a password.
If you haven't already created the project in Github, do so on that site. If memory serves, they display a page that tells you exactly how to get your existing code into your new repository. At the risk of oversimplification, though, you'd follow Veeti's instructions, then:
git remote add [name to use for remote] [private URI] # associate your local repository to the remote
git push [name of remote] master # push your repository to the remote
If you're using npm >=1.0, you can use npm link <global-package>
to create a local link to a package already installed globally. (Caveat: The OS must support symlinks.)
However, this doesn't come without its problems.
npm link is a development tool. It's awesome for managing packages on your local development box. But deploying with npm link is basically asking for problems, since it makes it super easy to update things without realizing it.
As an alternative, you can install the packages locally as well as globally.
For additional information, see
If you want to capture click on everything then do
$("*").click(function(){
//code here
}
I use this for selector: http://api.jquery.com/all-selector/
This is used for handling clicks: http://api.jquery.com/click/
And then use http://api.jquery.com/event.preventDefault/
To stop normal clicking actions.
clock()
returns the number of clock ticks since your program started. There is a related constant, CLOCKS_PER_SEC
, which tells you how many clock ticks occur in one second. Thus, you can test any operation like this:
clock_t startTime = clock();
doSomeOperation();
clock_t endTime = clock();
clock_t clockTicksTaken = endTime - startTime;
double timeInSeconds = clockTicksTaken / (double) CLOCKS_PER_SEC;
Best way for Oracle:
With hardcoded datetime:
SELECT TO_CHAR(CAST((FROM_TZ(CAST(TO_DATE('2018-10-27 21:00', 'YYYY-MM-DD HH24:MI') AS TIMESTAMP), 'UTC') AT TIME ZONE 'EET') AS DATE), 'YYYY-MM-DD HH24:MI') UTC_TO_EET FROM DUAL
Result:
2018-10-28 00:00
With column and table names:
SELECT TO_CHAR(CAST((FROM_TZ(CAST(COLUMN_NAME AS TIMESTAMP), 'UTC') AT TIME ZONE 'EET') AS DATE), 'YYYY-MM-DD HH24:MI') UTC_TO_EET FROM TABLE_NAME
//Create File object for Parent Directory
File wallpaperDir = new File(Environment.getExternalStorageDirectory().getAbsoluteFile() +File.separator + "wallpaper");
if (!wallpaperDir.exists()) {
wallpaperDir.mkdir();
}
File out = new File(wallpaperDir, wallpaperfile);
FileOutputStream outputStream = new FileOutputStream(out);
// Java 8
int vInt = Integer.parseUnsignedInt("4294967295");
System.out.println(vInt); // -1
String sInt = Integer.toUnsignedString(vInt);
System.out.println(sInt); // 4294967295
long vLong = Long.parseUnsignedLong("18446744073709551615");
System.out.println(vLong); // -1
String sLong = Long.toUnsignedString(vLong);
System.out.println(sLong); // 18446744073709551615
// Guava 18.0
int vIntGu = UnsignedInts.parseUnsignedInt(UnsignedInteger.MAX_VALUE.toString());
System.out.println(vIntGu); // -1
String sIntGu = UnsignedInts.toString(vIntGu);
System.out.println(sIntGu); // 4294967295
long vLongGu = UnsignedLongs.parseUnsignedLong("18446744073709551615");
System.out.println(vLongGu); // -1
String sLongGu = UnsignedLongs.toString(vLongGu);
System.out.println(sLongGu); // 18446744073709551615
/**
Integer - Max range
Signed: From -2,147,483,648 to 2,147,483,647, from -(2^31) to 2^31 – 1
Unsigned: From 0 to 4,294,967,295 which equals 2^32 - 1
Long - Max range
Signed: From -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807, from -(2^63) to 2^63 - 1
Unsigned: From 0 to 18,446,744,073,709,551,615 which equals 2^64 – 1
*/
If you want to get all Employee name in mysql which having at least one uppercase letter than apply this query.
SELECT * FROM registration WHERE `name` REGEXP BINARY '[A-Z]';
I got it. This is very simple. Using the class bg
you can achieve this easily.
Let me show you:
<nav class="navbar navbar-expand-lg navbar-dark navbar-full bg-primary"></nav>
This gives you the default blue navbar
If you want to change your favorite color, then simply use the style tag within the nav
:
<nav class="navbar navbar-expand-lg navbar-dark navbar-full" style="background-color: #FF0000">
<div style="text-align:center;">
<img src="queuedError.jpg" style="margin:auto; width:200px;" />
</div>
This is the correct and easiest way to accomplish this for 95% of use cases:
>>> df = pd.DataFrame(zip(*[range(10)]), columns=['num'])
>>> df
num
0 0
1 1
2 2
3 3
4 4
5 5
>>> def example(x):
... x['p1'] = x['num']**2
... x['p2'] = x['num']**3
... x['p3'] = x['num']**4
... return x
>>> df = df.apply(example, axis=1)
>>> df
num p1 p2 p3
0 0 0 0 0
1 1 1 1 1
2 2 4 8 16
3 3 9 27 81
4 4 16 64 256
When you run the official entrypoint (A.K.A. when you launch the container), it runs initdb
in $PGDATA
(/var/lib/postgresql/data
by default), and then it stores in that directory these 2 files:
postgresql.conf
with default manual settings.postgresql.auto.conf
with settings overriden automatically with ALTER SYSTEM
commands.The entrypoint also executes any /docker-entrypoint-initdb.d/*.{sh,sql}
files.
All this means you can supply a shell/SQL script in that folder that configures the server for the next boot (which will be immediately after the DB initialization, or the next times you boot the container).
Example:
conf.sql
file:
ALTER SYSTEM SET max_connections = 6;
ALTER SYSTEM RESET shared_buffers;
Dockerfile
file:
FROM posgres:9.6-alpine
COPY *.sql /docker-entrypoint-initdb.d/
RUN chmod a+r /docker-entrypoint-initdb.d/*
And then you will have to execute conf.sql
manually in already-existing databases. Since configuration is stored in the volume, it will survive rebuilds.
Another alternative is to pass -c
flag as many times as you wish:
docker container run -d postgres -c max_connections=6 -c log_lock_waits=on
This way you don't need to build a new image, and you don't need to care about already-existing or not databases; all will be affected.
Another approach is to add X-CSRFTOKEN header with the "{{ csrf_token }}" value like in the following example:
$.ajax({
url: "{% url 'register_lowresistancetyres' %}",
type: "POST",
headers: {//<==
"X-CSRFTOKEN": "{{ csrf_token }}"//<==
},
data: $(example_form).serialize(),
success: function(data) {
//Success code
},
error: function () {
//Error code
}
});
{{ app.user.username|default('') }}
Just present login username for example, filter function default('') should be nice when user is NOT login by just avoid annoying error message.
You can use the command find
to do this. We can match files with -type f
, and match empty files using -size 0
. Then we can delete the matches with -delete
.
find . -type f -size 0 -delete
You can do it using the same page on the action attribute: action='<yourpage>'
With Jeffrey Fox's interpretation about no-cache
, i've tested under chrome 52.0.2743.116 m, the result shows that no-cache
has the same behavior as must-revalidate
, they all will NOT use local cache when server is unreachable, and, they all will use cache while tap browser's Back/Forward button when server is unreachable.
As above, i think max-age=0, must-revalidate
is identical to no-cache
, at least in implementation.
Here's another:
data[data$Code == "A" | data$Code == "B", ]
It's also worth mentioning that the subsetting factor doesn't have to be part of the data frame if it matches the data frame rows in length and order. In this case we made our data frame from this factor anyway. So,
data[Code == "A" | Code == "B", ]
also works, which is one of the really useful things about R.
The colorbar has to have its own axes. However, you can create an axes that overlaps with the previous one. Then use the cax
kwarg to tell fig.colorbar
to use the new axes.
For example:
import numpy as np
import matplotlib.pyplot as plt
data = np.arange(100, 0, -1).reshape(10, 10)
fig, ax = plt.subplots()
cax = fig.add_axes([0.27, 0.8, 0.5, 0.05])
im = ax.imshow(data, cmap='gist_earth')
fig.colorbar(im, cax=cax, orientation='horizontal')
plt.show()
This worked great with me
func readjson(fileName: String) -> NSData{
let path = NSBundle.mainBundle().pathForResource(fileName, ofType: "json")
let jsonData = NSData(contentsOfMappedFile: path!)
return jsonData!
}
Following works out for me.
#!/usr/bin/env python
a = [{ 'main_color': 'red', 'second_color':'blue'},
{ 'main_color': 'yellow', 'second_color':'green'},
{ 'main_color': 'yellow', 'second_color':'blue'}]
found_event = next(
filter(
lambda x: x['main_color'] == 'red',
a
),
#return this dict when not found
dict(
name='red',
value='{}'
)
)
if found_event:
print(found_event)
$python /tmp/x
{'main_color': 'red', 'second_color': 'blue'}
It's possible, but it depends on the power output of the beacon you're receiving, other rf sources nearby, obstacles and other environmental factors. Best thing to do is try it out in the environment you're interested in.
You should not include commands.c in your header file. In general, you should not include .c files. Rather, commands.c should include commands.h. As defined here, the C preprocessor is inserting the contents of commands.c into commands.h where the include is. You end up with two definitions of f123 in commands.h.
commands.h
#ifndef COMMANDS_H_
#define COMMANDS_H_
void f123();
#endif
commands.c
#include "commands.h"
void f123()
{
/* code */
}
You could use a stl map container....
typedef map<Errors, string> ErrorMap;
ErrorMap m;
m.insert(ErrorMap::value_type(ErrorA, "ErrorA"));
m.insert(ErrorMap::value_type(ErrorB, "ErrorB"));
m.insert(ErrorMap::value_type(ErrorC, "ErrorC"));
Errors error = ErrorA;
cout << m[error] << endl;
self
(not $self) refers to the type of class, where as $this
refers to the current instance of the class. self
is for use in static member functions to allow you to access static member variables. $this
is used in non-static member functions, and is a reference to the instance of the class on which the member function was called.
Because this
is an object, you use it like: $this->member
Because self
is not an object, it's basically a type that automatically refers to the current class, you use it like: self::member
This is because the content of
<p myHighlight>Highlight me!</p>
has not been rendered when the constructor of the HighlightDirective is called so there is no content yet.
If you implement the AfterContentInit hook you will get the element and its content.
import { Directive, ElementRef, AfterContentInit } from '@angular/core';
@Directive({ selector: '[myHighlight]' })
export class HighlightDirective {
constructor(private el: ElementRef) {
//el.nativeElement.style.backgroundColor = 'yellow';
}
ngAfterContentInit(){
//you can get to the element content here
//this.el.nativeElement
}
}
os._exit()
:
exit(0)
:
exit(1)
:
sys.exit()
:
quit()
:
Basically they all do the same thing, however, it also depends on what you are doing it for.
I don't think you left anything out and I would recommend getting used to quit()
or exit()
.
You would use sys.exit()
and os._exit()
mainly if you are using big files or are using python to control terminal.
Otherwise mainly use exit()
or quit()
.
This happens because of your application does not allow to append iframe from origin other than your application domain.
If your application have web.config then add the following tag in web.config
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="X-Frame-Options" value="ALLOW" />
</customHeaders>
</httpProtocol>
</system.webServer>
This will allow application to append iframe from other origin also. You can also use the following value for X-Frame-Option
X-FRAME-OPTIONS: ALLOW-FROM https://example.com/
you have to use the To_Date() function to convert the string to date ! http://www.techonthenet.com/oracle/functions/to_date.php
Check out the range
documentation, you have to define a negative step:
>>> range(10, 0, -1)
[10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
They are the same when used for output, e.g. with printf
.
However, these are different when used as input specifier e.g. with scanf
, where %d
scans an integer as a signed decimal number, but %i
defaults to decimal but also allows hexadecimal (if preceded by 0x
) and octal (if preceded by 0
).
So 033
would be 27 with %i
but 33 with %d
.
Set Attributes in CodeBehind
textWeight.Attributes.Add("minimum", minValue.ToString());
textWeight.Attributes.Add("maximum", maxValue.ToString());
Result:
<input type="text" minimum="0" maximum="100" id="textWeight" value="2" name="textWeight">
By jQuery
jQuery(document).ready(function () {
var textWeight = $("input[type='text']#textWeight");
textWeight.change(function () {
var min = textWeight.attr("minimum");
var max= textWeight.attr("maximum");
var value = textWeight.val();
if(val < min || val > max)
{
alert("Your Message");
textWeight.val(min);
}
});
});
To support column-specific aggregation with control over the output column names, pandas accepts the special syntax in GroupBy.agg(), known as “named aggregation”, where
In [79]: animals = pd.DataFrame({'kind': ['cat', 'dog', 'cat', 'dog'],
....: 'height': [9.1, 6.0, 9.5, 34.0],
....: 'weight': [7.9, 7.5, 9.9, 198.0]})
....:
In [80]: animals
Out[80]:
kind height weight
0 cat 9.1 7.9
1 dog 6.0 7.5
2 cat 9.5 9.9
3 dog 34.0 198.0
In [81]: animals.groupby("kind").agg(
....: min_height=pd.NamedAgg(column='height', aggfunc='min'),
....: max_height=pd.NamedAgg(column='height', aggfunc='max'),
....: average_weight=pd.NamedAgg(column='weight', aggfunc=np.mean),
....: )
....:
Out[81]:
min_height max_height average_weight
kind
cat 9.1 9.5 8.90
dog 6.0 34.0 102.75
pandas.NamedAgg is just a namedtuple. Plain tuples are allowed as well.
In [82]: animals.groupby("kind").agg(
....: min_height=('height', 'min'),
....: max_height=('height', 'max'),
....: average_weight=('weight', np.mean),
....: )
....:
Out[82]:
min_height max_height average_weight
kind
cat 9.1 9.5 8.90
dog 6.0 34.0 102.75
Additional keyword arguments are not passed through to the aggregation functions. Only pairs of (column, aggfunc) should be passed as **kwargs. If your aggregation functions requires additional arguments, partially apply them with functools.partial().
Named aggregation is also valid for Series groupby aggregations. In this case there’s no column selection, so the values are just the functions.
In [84]: animals.groupby("kind").height.agg(
....: min_height='min',
....: max_height='max',
....: )
....:
Out[84]:
min_height max_height
kind
cat 9.1 9.5
dog 6.0 34.0
Just want to point out you do not need to specify all dimensions of the array.
The leftmost dimension can be 'guessed' by the compiler.
#include <stdio.h>
int main(void) {
int arr[][5] = {{1,2,3,4,5}, {5,6,7,8,9}, {6,5,4,3,2}};
printf("sizeof arr is %d bytes\n", (int)sizeof arr);
printf("number of elements: %d\n", (int)(sizeof arr/sizeof arr[0]));
return 0;
}
As an alternative to Activator.CreateInstance, FastObjectFactory in the linked url preforms better than Activator (as of .NET 4.0 and significantly better than .NET 3.5. No tests/stats done with .NET 4.5). See StackOverflow post for stats, info and code:
How to pass ctor args in Activator.CreateInstance or use IL?
* Hope This will work for u
System.Windows.Forms.Form f1 = System.Windows.Forms.Application.OpenForms["Order"];
if(((Order)f1)!=null)
{
//open Form
}
else
{
//not open
}
hostName == null;
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
{
while (interfaces.hasMoreElements()) {
NetworkInterface nic = interfaces.nextElement();
Enumeration<InetAddress> addresses = nic.getInetAddresses();
while (hostName == null && addresses.hasMoreElements()) {
InetAddress address = addresses.nextElement();
if (!address.isLoopbackAddress()) {
hostName = address.getHostName();
}
}
}
}
Also got the same error when using ajax.
If you're using ajax to render forms with select2, the input_html class must be different from those NOT rendered using ajax. Not quite sure why it works this way though.
class Addition {
public static void main() {
int arr[]={5,10,15,20,25,30}; //Declaration and Initialization of an Array
int sum=0; //To find the sum of array elements
for(int i:arr) {
sum += i;
}
System.out.println("The sum is :"+sum);//To display the sum
}
}
Pretty sure nobody answer your question to your exact terms, you want it for dynamic text
var newString = myString.substring( myString.indexOf( "," ) +1, myString.length );
It takes a substring from the first comma, to the end
I got the error Can't open file for reading. Inappropriate ioctl for device
recently when I migrated an old UB2K forum with a DBM file-based database to a new host. Apparently there are multiple, incompatible implementations of DBM. I had a backup of the database, so I was able to load that, but it seems there are other options e.g. moving a perl script/dbm to a new server, and shifting out of dbm?.
Margin is the spacing outside your element, just as padding is the spacing inside your element.
Setting the bottom margin indicates what distance you want below the current block. Setting a negative top margin indicates that you want negative spacing above your block. Negative spacing may in itself be a confusing concept, but just the way positive top margin pushes content down, a negative top margin pulls content up.
Taken from here:
Register global event handler in App.xaml.cs file:
protected override void OnStartup(StartupEventArgs e)
{
EventManager.RegisterClassHandler(typeof(TextBox),TextBox.GotFocusEvent,
new RoutedEventHandler(TextBox_GotFocus));
base.OnStartup(e);
}
Then the handler is as simple as:
private void TextBox_GotFocus(object sender, RoutedEventArgs e)
{
(sender as TextBox).SelectAll();
}
Here is how I have done it in Kotlin.
Inject room db in the activity using DI (Koin).
private val appDB: AppDB by inject()
Then you can simply call clearAllTables()
private fun clearRoomDB() {
GlobalScope.launch {
appDB.clearAllTables()
preferences.put(PreferenceConstants.IS_UPLOADCATEGORIES_SAVED_TO_DB, false)
preferences.put(PreferenceConstants.IS_MEMBERHANDBOOK_SAVED_TO_DB, false)
}
}
Found a site on google explaining some changes, according to the author of the page fb does not allow custom buttons. Heres the website.
Unfortunately, it’s against Facebook’s developer policies, which state:
You must not circumvent our intended limitations on core Facebook features.
The Facebook Connect button is intended to be rendered in FBML, which means it’s only meant to look the way Facebook lets it.
How about?
function callHttpService(url, params){
// Assume params contains key/value request params
let queryStrings = '';
for(let key in params){
queryStrings += `${key}=${params[key]}&`
}
const fullUrl = `${url}?queryStrings`
//make http request with fullUrl
}
Are you looking for the max date for each model?
SELECT model, max(date) FROM doc
GROUP BY model
If you're looking for all models matching the max date of the entire table...
SELECT model, date FROM doc
WHERE date IN (SELECT max(date) FROM doc)
[--- Added ---]
For those who want to display details from every record matching the latest date within each model group (not summary data, as asked for in the OP):
SELECT d.model, d.date, d.color, d.etc FROM doc d
WHERE d.date IN (SELECT max(d2.date) FROM doc d2 WHERE d2.model=d.model)
MySQL 8.0 and newer supports the OVER
clause, producing the same results a bit faster for larger data sets.
SELECT model, date, color, etc FROM (SELECT model, date, color, etc,
max(date) OVER (PARTITION BY model) max_date FROM doc) predoc
WHERE date=max_date;
mail -s "$(echo -e "This is the subject\nFrom: Paula <[email protected]>\n
Reply-to: [email protected]\nContent-Type: text/html\n")"
[email protected] < htmlFileMessage.txt
the above is my solution....any extra headers can be added just after the from and before the reply to...just make sure you know your headers syntax before adding them....this worked perfectly for me.
Typically we would place one of these at or near the top of the script. Scripts that parse their command lines would do the redirection after parsing.
Send stdout to a file
exec > file
with stderr
exec > file
exec 2>&1
append both stdout and stderr to file
exec >> file
exec 2>&1
As Jonathan Leffler mentioned in his comment:
exec
has two separate jobs. The first one is to replace the currently executing shell (script) with a new program. The other is changing the I/O redirections in the current shell. This is distinguished by having no argument to exec
.
You could use %g
to achieve this:
'%g'%(3.140)
or, with Python = 2.6:
'{0:g}'.format(3.140)
From the docs for format
: g
causes (among other things)
insignificant trailing zeros [to be] removed from the significand, and the decimal point is also removed if there are no remaining digits following it.
AFAIS, no one mentions of atomic reference.
Integer
public void swap(AtomicInteger a, AtomicInteger b){
a.set(b.getAndSet(a.get()));
}
String
public void swap(AtomicReference<String> a, AtomicReference<String> b){
a.set(b.getAndSet(a.get()));
}
I don't know if I would say heredoc is laziness. One can say that doing anything is laziness, as there are always more cumbersome ways to do anything.
For example, in certain situations you may want to output text, with embedded variables without having to fetch from a file and run a template replace. Heredoc allows you to forgo having to escape quotes, so the text you see is the text you output. Clearly there are some negatives, for example, you can't indent your heredoc, and that can get frustrating in certain situation, especially if your a stickler for unified syntax, which I am.
when you are dealing with popups window.opener plays an important role, because we have to deal with fields of parent page as well as child page, when we have to use values on parent page we can use window.opener or we want some data on the child window or popup window at the time of loading then again we can set the values using window.opener
In case you would like to avoid %s or %d then..
name = 'marcog'
number = 42
print ('my name is',name,'and my age is:', number)
Output:
my name is marcog and my name is 42
Here's the obligatory dplyr
answer in case somebody wants to do this with the pipe.
test %>%
select(sort(names(.)))
Send a y
character to the input stream of the script using compinit
, in order to automatically answer the Ignore insecure directories and files and continue [y] or abort compinit [n]? question
echo "y" > source <GOOGLECLOUDSDK>/completion.zsh.inc
The solution is useful when
Remark: It doesn't fix the problem and only hides the warning (as opposed to others answers here which involve removing 'group write access' or 'change ownership to root').
Use this if the session variable emp_num will store a string:
if (!string.IsNullOrEmpty(Session["emp_num"] as string))
{
//The code
}
If it doesn't store a string, but some other type, you should just check for null before accessing the value, as in your second example.
You'll be wanting to use glob()
Example:
$files = glob('/path/to/dir/*.xml');
This code works for both IE 7 and the latest version of Mozilla although the default setting in mozilla doesnt allow to close a window through javascript.
Here is the code:
function F11() { window.open('','_parent',''); window.open("login.aspx", "", "channelmode"); window.close(); }
To change the default setting :
1.type"about:config " in your firefox address bar and enter;
2.make sure your "dom.allow_scripts_to_close_windows" is true
I also came across the same error. Here is the fix: If you are using Cmake-GUI:
If you missed the 3rd step:
*** No rule to make target `install'. Stop.
error will occur.
string[] lines = File.ReadAllLines(txtProxyListPath.Text);
// No need for the list
// List<string> list_lines = new List<string>(lines);
Parallel.ForEach(lines, line =>
{
//My Stuff
});
This will cause the lines to be parsed in parallel, within the loop. If you want a more detailed, less "reference oriented" introduction to the Parallel class, I wrote a series on the TPL which includes a section on Parallel.ForEach.
read num1
read num2
sum=`expr $num1 + $num2`
echo $sum
I have anaconda installed for Python 3. I also have Python2 in my mac.
python --version
gives me
Python 3.7.3
python2.7 --version
gives me
Python 2.7.10
I wanted to install pyspark package in python2, given that it was already installed in python3.
python2.7 -m pip install pyspark
gives me an error
Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pyspark' Consider using the
--user
option or check the permissions.
The below command solved it. Thank god I didn't have to do any config changes.
python2.7 -m pip install pyspark --user
Collecting pyspark Requirement already satisfied: py4j==0.10.7 in /Library/Python/2.7/site-packages (from pyspark) (0.10.7) Installing collected packages: pyspark Successfully installed pyspark-2.4.4 You are using pip version 18.1, however version 19.3.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.
you can do this in the following ways:
Method 1:
Method 2:
Method 2 is more preferable because the other method consumes lot of time to transfer data back and forth between hashset and list.
The above answer is already satisfying the topic. Anyway, if you need all the data in memory - have a look at bcolz. Its compressing the data in memory. I have had really good experience with it. But its missing a lot of pandas features
Edit: I got compression rates at around 1/10 or orig size i think, of course depending of the kind of data. Important features missing were aggregates.
'SET' is forgotten
ALTER TABLE ONLY users ALTER COLUMN lang SET DEFAULT 'en_GB';
or in the .htaccess file
AddOutputFilter DEFLATE css js
ExpiresActive On
ExpiresByType application/x-javascript A2592000
from operator import attrgetter
ut.sort(key = attrgetter('count'), reverse = True)
MyEclipse (eclipse based, subscription required) and Webclipse (an eclipse plug-in, currently free), from my company, Genuitec, have newly engineered (as of 2015) JavaScript debugging built in:
You can debug both generic web applications and Node.js files.
Use the loading plugin: http://plugins.jquery.com/project/loading
$.loading.onAjax({img:'loading.gif'});
Search in your code maybe you have initialized dataTable twice in your code. You shold have like this code:
$('#example').dataTable( {paging: false} );
Only one time in your code.
It happens when you don't properly close the code block:
if (condition){
// your code goes here*
{ // This doesn't close the code block
Correct way:
if (condition){
// your code goes here
} // Close the code block
Word boundary \b is used where one word should be a word character and another one a non-word character. Regular Expression for negative number should be
--?\b\d+\b
check working DEMO
Nope, they are not equivalent.
With myObj = 1;
you are using a global variable.
The latter declaration create a variable local to the scope you are using.
Try the following code to understand the differences:
external = 5;
function firsttry() {
var external = 6;
alert("first Try: " + external);
}
function secondtry() {
external = 7;
alert("second Try: " + external);
}
alert(external); // Prints 5
firsttry(); // Prints 6
alert(external); // Prints 5
secondtry(); // Prints 7
alert(external); // Prints 7
The second function alters the value of the global variable "external", but the first function doesn't.
Here is the issue
$total_result = $result->num_rows;
try this
<?php
if ($result = $mysqli->query("SELECT * FROM players ORDER BY id"))
{
if ($result->num_rows > 0)
{
$total_result = $result->num_rows;
$total_pages = ceil($total_result / $per_page);
if(isset($_GET['page']) && is_numeric($_GET['page']))
{
$show_page = $_GET['page'];
if ($show_page > 0 && $show_page <= $total_pages)
{
$start = ($show_page - 1) * $per_page;
$end = $start + $per_page;
}
else
{
$start = 0;
$end = $per_page;
}
}
else
{
$start = 0;
$end = $per_page;
}
//display paginations
echo "<p> View pages: ";
for ($i=1; $i < $total_pages; $i++)
{
if (isset($_GET['page']) && $_GET['page'] == $i)
{
echo $i . " ";
}
else
{
echo "<a href='view-pag.php?$i'>" . $i . "</a> | ";
}
}
echo "</p>";
}
else
{
echo "No result to display.";
}
}
else
{
echo "Error: " . $mysqli->error;
}
?>
The comparator should be only for the key, not for the whole entry. It sorts the entries based on the keys.
You should change it to something as follows
SortedMap<String, Double> myMap =
new TreeMap<String, Double>(new Comparator<String>()
{
public int compare(String o1, String o2)
{
return o1.compareTo(o2);
}
});
Update
You can do something as follows (create a list of entries in the map and sort the list base on value, but note this not going to sort the map itself) -
List<Map.Entry<String, Double>> entryList = new ArrayList<Map.Entry<String, Double>>(myMap.entrySet());
Collections.sort(entryList, new Comparator<Map.Entry<String, Double>>() {
@Override
public int compare(Entry<String, Double> o1, Entry<String, Double> o2) {
return o1.getValue().compareTo(o2.getValue());
}
});
Erik Allik already gave very good reasons, why you will most likely not want to collect elements of a stream into an existing List.
Anyway, you can use the following one-liner, if you really need this functionality.
But as Stuart Marks explains in his answer, you should never do this, if the streams might be parallel streams - use at your own risk...
list.stream().collect(Collectors.toCollection(() -> myExistingList));
A bit late to the party, but Krux has created a script for this, called Postscribe. We were able to use this to get past this issue.
This is a way:
Using apktool
to decode:
$ apktool d -f {apkfile} -o {output folder}
Next, using JADX (at github.com/skylot/jadx)
$ jadx -d {output folder} {apkfile}
2 tools extract and decompiler to same output folder.
Duplicate question which basically says use ExecuteScalar()
instead.
If you did a new or clean install of OS X version 10.3 or more recent, the default user terminal shell is bash.
Bash is essentially an enhanced and GNU freeware version of the original Bourne shell, sh. If you have previous experience with bash (often the default on GNU/Linux installations), this makes the OS X command-line experience familiar, otherwise consider switching your shell either to tcsh or to zsh, as some find these more user-friendly.
If you upgraded from or use OS X version 10.2.x, 10.1.x or 10.0.x, the default user shell is tcsh, an enhanced version of csh('c-shell'). Early implementations were a bit buggy and the programming syntax a bit weird so it developed a bad rap.
There are still some fundamental differences between mac and linux as Gordon Davisson so aptly lists, for example no useradd
on Mac and ifconfig
works differently.
The following table is useful for knowing the various unix shells.
sh The original Bourne shell Present on every unix system
ksh Original Korn shell Richer shell programming environment than sh
csh Original C-shell C-like syntax; early versions buggy
tcsh Enhanced C-shell User-friendly and less buggy csh implementation
bash GNU Bourne-again shell Enhanced and free sh implementation
zsh Z shell Enhanced, user-friendly ksh-like shell
You may also find these guides helpful:
http://homepage.mac.com/rgriff/files/TerminalBasics.pdf
http://guides.macrumors.com/Terminal
http://www.ofb.biz/safari/article/476.html
On a final note, I am on Linux (Ubuntu 11) and Mac osX so I use bash and the thing I like the most is customizing the .bashrc (source'd from .bash_profile
on OSX) file with aliases, some examples below.
I now placed all my aliases in a separate .bash_aliases file and include it with:
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
in the .bashrc or .bash_profile file.
Note that this is an example of a mac-linux difference because on a Mac you can't have the --color=auto
. The first time I did this (without knowing) I redefined ls
to be invalid which was a bit alarming until I removed --auto-color
!
You may also find https://unix.stackexchange.com/q/127799/10043 useful
# ~/.bash_aliases
# ls variants
#alias l='ls -CF'
alias la='ls -A'
alias l='ls -alFtr'
alias lsd='ls -d .*'
# Various
alias h='history | tail'
alias hg='history | grep'
alias mv='mv -i'
alias zap='rm -i'
# One letter quickies:
alias p='pwd'
alias x='exit'
alias {ack,ak}='ack-grep'
# Directories
alias s='cd ..'
alias play='cd ~/play/'
# Rails
alias src='script/rails console'
alias srs='script/rails server'
alias raked='rake db:drop db:create db:migrate db:seed'
alias rvm-restart='source '\''/home/durrantm/.rvm/scripts/rvm'\'''
alias rrg='rake routes | grep '
alias rspecd='rspec --drb '
#
# DropBox - syncd
WORKBASE="~/Dropbox/97_2012/work"
alias work="cd $WORKBASE"
alias code="cd $WORKBASE/ror/code"
#
# DropNot - NOT syncd !
WORKBASE_GIT="~/Dropnot"
alias {dropnot,not}="cd $WORKBASE_GIT"
alias {webs,ww}="cd $WORKBASE_GIT/webs"
alias {setups,docs}="cd $WORKBASE_GIT/setups_and_docs"
alias {linker,lnk}="cd $WORKBASE_GIT/webs/rails_v3/linker"
#
# git
alias {gsta,gst}='git status'
# Warning: gst conflicts with gnu-smalltalk (when used).
alias {gbra,gb}='git branch'
alias {gco,go}='git checkout'
alias {gcob,gob}='git checkout -b '
alias {gadd,ga}='git add '
alias {gcom,gc}='git commit'
alias {gpul,gl}='git pull '
alias {gpus,gh}='git push '
alias glom='git pull origin master'
alias ghom='git push origin master'
alias gg='git grep '
#
# vim
alias v='vim'
#
# tmux
alias {ton,tn}='tmux set -g mode-mouse on'
alias {tof,tf}='tmux set -g mode-mouse off'
#
# dmc
alias {dmc,dm}='cd ~/Dropnot/webs/rails_v3/dmc/'
alias wf='cd ~/Dropnot/webs/rails_v3/dmc/dmWorkflow'
alias ws='cd ~/Dropnot/webs/rails_v3/dmc/dmStaffing'
enter the values as 0:mm:ss
and format as [m]:ss
as this is now in the mins & seconds, simple arithmetic will allow you to calculate your statistics
Javascript is a programming language whereas jQuery is a library to help make writing in javascript easier. It's particularly useful for simply traversing the DOM in an HTML page.
Concatenation of words in the package name is something most developers don't do.
You can use something like.
com.stackoverflow.mypackage
Refer JLS Name Declaration
In this case you are restarting your node.js server often because it's in active development and you are making changes all the time. There is a great hot reload script that will handle this for you by watching all your .js files and restarting your node.js server if any of those files have changed. Just the ticket for rapid development and test.
The script and explanation on how to use it are at here at Draco Blue.
string A = null;
//a now is reversed and you can use it
A = SimulateStrReverse.StrReverse("your string");
public static class SimulateStrReverse
{
public static string StrReverse(string expression)
{
if (string.IsNullOrEmpty(expression))
return string.Empty;
string reversedString = string.Empty;
for (int charIndex = expression.Length - 1; charIndex >= 0; charIndex--)
{
reversedString += expression[charIndex];
}
return reversedString;
}
}
Here's an example. It uses the simple ng-show method with a bool.
HTML
<div ng-show="loading" class="loading"><img src="...">LOADING...</div>
<div ng-repeat="car in cars">
<li>{{car.name}}</li>
</div>
<button ng-click="clickMe()" class="btn btn-primary">CLICK ME</button>
ANGULARJS
$scope.clickMe = function() {
$scope.loading = true;
$http.get('test.json')
.success(function(data) {
$scope.cars = data[0].cars;
$scope.loading = false;
});
}
Of course you can move the loading box html code into a directive, then use $watch on $scope.loading. In which case:
HTML:
<loading></loading>
ANGULARJS DIRECTIVE:
.directive('loading', function () {
return {
restrict: 'E',
replace:true,
template: '<div class="loading"><img src="..."/>LOADING...</div>',
link: function (scope, element, attr) {
scope.$watch('loading', function (val) {
if (val)
$(element).show();
else
$(element).hide();
});
}
}
})
Just remove the border and add a background image in css
Example:
$("#form").on('submit', function() {_x000D_
alert($("#submit-icon").val());_x000D_
});
_x000D_
#submit-icon {_x000D_
background-image: url("https://pixabay.com/static/uploads/photo/2016/10/18/21/22/california-1751455__340.jpg"); /* Change url to wanted image */_x000D_
background-size: cover;_x000D_
border: none;_x000D_
width: 32px;_x000D_
height: 32px;_x000D_
cursor: pointer;_x000D_
color: transparent;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form id="form">_x000D_
<input type="submit" id="submit-icon" value="test">_x000D_
</form>
_x000D_
Sorry to dig an old grave here, but why not just do this?
<div class="form-group">
</div>
It will add a space the height of a normal form element.
It seems about 1 line on a form is roughly 50px (47px on my element I just inspected). This is a horizontal form, with label on left 2col and input on right 10col. So your pixels may vary.
Since mine is basically 50px, I would create a spacer of 50px tall with no margins or padding;
.spacer { margin:0; padding:0; height:50px; }
<div class="spacer"></div>
You can not "attach" a SASS/SCSS file to an HTML document.
SASS/SCSS is a CSS preprocessor that runs on the server and compiles to CSS code that your browser understands.
There are client-side alternatives to SASS that can be compiled in the browser using javascript such as LESS CSS, though I advise you compile to CSS for production use.
It's as simple as adding 2 lines of code to your HTML file.
<link rel="stylesheet/less" type="text/css" href="styles.less" />
<script src="less.js" type="text/javascript"></script>
Outside of using pl/pgsql or other pl/* language as suggested, this is the only other possibility I could think of.
begin;
select 5::int as var into temp table myvar;
select *
from somewhere s, myvar v
where s.something = v.var;
commit;
You just CAST()
this way
SELECT cast(yourNumber as varchar(10))
FROM yourTable
Then if you want to JOIN
based on it, you can use:
SELECT *
FROM yourTable t1
INNER JOIN yourOtherTable t2
on cast(t1.yourNumber as varchar(10)) = t2.yourString
Like the other answers mentioned, there is no built in function that does this.
Here is a function that attempts to get all of the information that would be needed to replicate the table - or to compare deployed and checked in ddl.
This function outputs:
CREATE OR REPLACE FUNCTION public.show_create_table(
in_schema_name varchar,
in_table_name varchar
)
RETURNS text
LANGUAGE plpgsql VOLATILE
AS
$$
DECLARE
-- the ddl we're building
v_table_ddl text;
-- data about the target table
v_table_oid int;
-- records for looping
v_column_record record;
v_constraint_record record;
v_index_record record;
BEGIN
-- grab the oid of the table; https://www.postgresql.org/docs/8.3/catalog-pg-class.html
SELECT c.oid INTO v_table_oid
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE 1=1
AND c.relkind = 'r' -- r = ordinary table; https://www.postgresql.org/docs/9.3/catalog-pg-class.html
AND c.relname = in_table_name -- the table name
AND n.nspname = in_schema_name; -- the schema
-- throw an error if table was not found
IF (v_table_oid IS NULL) THEN
RAISE EXCEPTION 'table does not exist';
END IF;
-- start the create definition
v_table_ddl := 'CREATE TABLE ' || in_schema_name || '.' || in_table_name || ' (' || E'\n';
-- define all of the columns in the table; https://stackoverflow.com/a/8153081/3068233
FOR v_column_record IN
SELECT
c.column_name,
c.data_type,
c.character_maximum_length,
c.is_nullable,
c.column_default
FROM information_schema.columns c
WHERE (table_schema, table_name) = (in_schema_name, in_table_name)
ORDER BY ordinal_position
LOOP
v_table_ddl := v_table_ddl || ' ' -- note: two char spacer to start, to indent the column
|| v_column_record.column_name || ' '
|| v_column_record.data_type || CASE WHEN v_column_record.character_maximum_length IS NOT NULL THEN ('(' || v_column_record.character_maximum_length || ')') ELSE '' END || ' '
|| CASE WHEN v_column_record.is_nullable = 'NO' THEN 'NOT NULL' ELSE 'NULL' END
|| CASE WHEN v_column_record.column_default IS NOT null THEN (' DEFAULT ' || v_column_record.column_default) ELSE '' END
|| ',' || E'\n';
END LOOP;
-- define all the constraints in the; https://www.postgresql.org/docs/9.1/catalog-pg-constraint.html && https://dba.stackexchange.com/a/214877/75296
FOR v_constraint_record IN
SELECT
con.conname as constraint_name,
con.contype as constraint_type,
CASE
WHEN con.contype = 'p' THEN 1 -- primary key constraint
WHEN con.contype = 'u' THEN 2 -- unique constraint
WHEN con.contype = 'f' THEN 3 -- foreign key constraint
WHEN con.contype = 'c' THEN 4
ELSE 5
END as type_rank,
pg_get_constraintdef(con.oid) as constraint_definition
FROM pg_catalog.pg_constraint con
JOIN pg_catalog.pg_class rel ON rel.oid = con.conrelid
JOIN pg_catalog.pg_namespace nsp ON nsp.oid = connamespace
WHERE nsp.nspname = in_schema_name
AND rel.relname = in_table_name
ORDER BY type_rank
LOOP
v_table_ddl := v_table_ddl || ' ' -- note: two char spacer to start, to indent the column
|| 'CONSTRAINT' || ' '
|| v_constraint_record.constraint_name || ' '
|| v_constraint_record.constraint_definition
|| ',' || E'\n';
END LOOP;
-- drop the last comma before ending the create statement
v_table_ddl = substr(v_table_ddl, 0, length(v_table_ddl) - 1) || E'\n';
-- end the create definition
v_table_ddl := v_table_ddl || ');' || E'\n';
-- suffix create statement with all of the indexes on the table
FOR v_index_record IN
SELECT indexdef
FROM pg_indexes
WHERE (schemaname, tablename) = (in_schema_name, in_table_name)
LOOP
v_table_ddl := v_table_ddl
|| v_index_record.indexdef
|| ';' || E'\n';
END LOOP;
-- return the ddl
RETURN v_table_ddl;
END;
$$;
SELECT * FROM public.show_create_table('public', 'example_table');
produces
CREATE TABLE public.example_table (
id bigint NOT NULL DEFAULT nextval('test_tb_for_show_create_on_id_seq'::regclass),
name character varying(150) NULL,
level character varying(50) NULL,
description text NOT NULL DEFAULT 'hello there!'::text,
CONSTRAINT test_tb_for_show_create_on_pkey PRIMARY KEY (id),
CONSTRAINT test_tb_for_show_create_on_level_check CHECK (((level)::text = ANY ((ARRAY['info'::character varying, 'warn'::character varying, 'error'::character varying])::text[])))
);
CREATE UNIQUE INDEX test_tb_for_show_create_on_pkey ON public.test_tb_for_show_create_on USING btree (id);
In my case, I was getting this error in AndroidStudio 4.1.1 while updating compileSdkVersion to 29.
If you are having dependent project in build.gradle, All you need to do is Update same compileSdkVersion in dependent project's build.gradle as well.
Steps:
That worked for me :)
Update: I still get upvotes on this question, which is still the accepted answer and which I think I answered poorly. In the spirit of making sure the best info is out there, I have decided to update this answer.
In modern Android I would use ConstraintLayout
to do this. It is more performant and straightforward.
<ConstraintLayout>
<View
android:id="@+id/view1"
...other attributes elided... />
<View
android:id="@id/view2"
app:layout_constraintTop_toBottomOf="@id/view1" />
...other attributes elided... />
...etc for other views that should be aligned top to bottom...
<TextView
app:layout_constraintBottom_toBottomOf="parent" />
If you don't want to use a ConstraintLayout, using a LinearLayout with an expanding view is a straightforward and great way to handle taking up the extra space (see the answer by @Matthew Wills). If you don't want to expand the background of any of the Views above the bottom view, you can add an invisible View to take up the space.
The answer I originally gave works but is inefficient. Inefficiency may not be a big deal for a single top level layout, but it would be a terrible implementation in a ListView
or RecyclerView
, and there just isn't any reason to do it since there are better ways to do it that are roughly the same level of effort and complexity if not simpler.
Take the TextView out of the LinearLayout, then put the LinearLayout and the TextView inside a RelativeLayout. Add the attribute android:layout_alignParentBottom="true"
to the TextView. With all the namespace and other attributes except for the above attribute elided:
<RelativeLayout>
<LinearLayout>
<!-- All your other elements in here -->
</LinearLayout>
<TextView
android:layout_alignParentBottom="true" />
</RelativeLayout>
After looking for an answer for this question I found a brilliant explanation with an example that I would like to share with you.
You can watch a video that demonstrate the differences HERE
In this example we have this given code:
public interface IEmployeeRepository
{
IEnumerable<Employee> GetAllEmployees();
Employee Add(Employee employee);
}
public class Employee
{
public int Id { get; set; }
public string Name { get; set; }
}
public class MockEmployeeRepository : IEmployeeRepository
{
private List<Employee> _employeeList;
public MockEmployeeRepository()
{
_employeeList = new List<Employee>()
{
new Employee() { Id = 1, Name = "Mary" },
new Employee() { Id = 2, Name = "John" },
new Employee() { Id = 3, Name = "Sam" },
};
}
public Employee Add(Employee employee)
{
employee.Id = _employeeList.Max(e => e.Id) + 1;
_employeeList.Add(employee);
return employee;
}
public IEnumerable<Employee> GetAllEmployees()
{
return _employeeList;
}
}
HomeController
public class HomeController : Controller
{
private IEmployeeRepository _employeeRepository;
public HomeController(IEmployeeRepository employeeRepository)
{
_employeeRepository = employeeRepository;
}
[HttpGet]
public ViewResult Create()
{
return View();
}
[HttpPost]
public IActionResult Create(Employee employee)
{
if (ModelState.IsValid)
{
Employee newEmployee = _employeeRepository.Add(employee);
}
return View();
}
}
Create View
@model Employee
@inject IEmployeeRepository empRepository
<form asp-controller="home" asp-action="create" method="post">
<div>
<label asp-for="Name"></label>
<div>
<input asp-for="Name">
</div>
</div>
<div>
<button type="submit">Create</button>
</div>
<div>
Total Employees Count = @empRepository.GetAllEmployees().Count().ToString()
</div>
</form>
Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
services.AddSingleton<IEmployeeRepository, MockEmployeeRepository>();
}
Copy-paste this code and press on the create button in the view and switch between
AddSingleton
, AddScoped
and AddTransient
you will get each time a different result that will might help you understand this.
AddSingleton() - As the name implies, AddSingleton() method creates a Singleton service. A Singleton service is created when it is first requested. This same instance is then used by all the subsequent requests. So in general, a Singleton service is created only one time per application and that single instance is used throughout the application life time.
AddTransient() - This method creates a Transient service. A new instance of a Transient service is created each time it is requested.
AddScoped() - This method creates a Scoped service. A new instance of a Scoped service is created once per request within the scope. For example, in a web application it creates 1 instance per each http request but uses the same instance in the other calls within that same web request.
Create an empty file __init__.py
in subdirectory /lib.
And add at the begin of main code
from __future__ import absolute_import
then
import lib.BoxTime as BT
...
BT.bt_function()
or better
from lib.BoxTime import bt_function
...
bt_function()
Please check you are using //
not \\
by-mistake , like below
Wrong:"http:\\stackoverflow.com"
Right:"http://stackoverflow.com"
When the compiler compiles the class User
and gets to the MyMessageBox
line, MyMessageBox
has not yet been defined. The compiler has no idea MyMessageBox
exists, so cannot understand the meaning of your class member.
You need to make sure MyMessageBox
is defined before you use it as a member. This is solved by reversing the definition order. However, you have a cyclic dependency: if you move MyMessageBox
above User
, then in the definition of MyMessageBox
the name User
won't be defined!
What you can do is forward declare User
; that is, declare it but don't define it. During compilation, a type that is declared but not defined is called an incomplete type.
Consider the simpler example:
struct foo; // foo is *declared* to be a struct, but that struct is not yet defined
struct bar
{
// this is okay, it's just a pointer;
// we can point to something without knowing how that something is defined
foo* fp;
// likewise, we can form a reference to it
void some_func(foo& fr);
// but this would be an error, as before, because it requires a definition
/* foo fooMember; */
};
struct foo // okay, now define foo!
{
int fooInt;
double fooDouble;
};
void bar::some_func(foo& fr)
{
// now that foo is defined, we can read that reference:
fr.fooInt = 111605;
fr.foDouble = 123.456;
}
By forward declaring User
, MyMessageBox
can still form a pointer or reference to it:
class User; // let the compiler know such a class will be defined
class MyMessageBox
{
public:
// this is ok, no definitions needed yet for User (or Message)
void sendMessage(Message *msg, User *recvr);
Message receiveMessage();
vector<Message>* dataMessageList;
};
class User
{
public:
// also ok, since it's now defined
MyMessageBox dataMsgBox;
};
You cannot do this the other way around: as mentioned, a class member needs to have a definition. (The reason is that the compiler needs to know how much memory User
takes up, and to know that it needs to know the size of its members.) If you were to say:
class MyMessageBox;
class User
{
public:
// size not available! it's an incomplete type
MyMessageBox dataMsgBox;
};
It wouldn't work, since it doesn't know the size yet.
On a side note, this function:
void sendMessage(Message *msg, User *recvr);
Probably shouldn't take either of those by pointer. You can't send a message without a message, nor can you send a message without a user to send it to. And both of those situations are expressible by passing null as an argument to either parameter (null is a perfectly valid pointer value!)
Rather, use a reference (possibly const):
void sendMessage(const Message& msg, User& recvr);
Yes, you can use a while True:
loop that never breaks to run Python code continually.
However, you will need to put the code you want to run continually inside the loop:
#!/usr/bin/python
while True:
# some python code that I want
# to keep on running
Also, time.sleep
is used to suspend the operation of a script for a period of time. So, since you want yours to run continually, I don't see why you would use it.
You can read it, but you can't set it. value="123"
will be ignored, so it won't have a value until you click on it and pick a file.
Even then, the value will likely be mangled with something like c:\fakepath\
to keep the details of the user's filesystem private.
In my case, the issue was caused by a connection problem to the SQL database. I just disconnected and then reconnected the SQL datasource from the design view. I am back up and running. Hope this works for everyone.
Just add this to your global CSS style:
a { cursor: pointer; }
This way you're not dependent on the browser default cursor style anymore.
If you are trying to access an html element: this is an HTML Anchor...
My nav bar has items that are not list items (<li>
) but rather html anchors (<a>
)
See below: (This is the site master)
<nav class="mdl-navigation">
<a class="mdl-navigation__link" href="" runat="server" id="liHome">Home</a>
<a class="mdl-navigation__link" href="" runat="server" id="liDashboard">Dashboard</a>
</nav>
Now in your code behind for another page, for mine, it's the login page...
On PageLoad() define this:
HtmlAnchor lblMasterStatus = (HtmlAnchor)Master.FindControl("liHome");
lblMasterStatus.Visible =false;
HtmlAnchor lblMasterStatus1 = (HtmlAnchor)Master.FindControl("liDashboard");
lblMasterStatus1.Visible = false;
Now we have accessed the site masters controls, and have made them invisible on the login page.
To append to an array, just use the +=
operator.
$Target += $TargetObject
Also, you need to declare $Target = @()
before your loop because otherwise, it will empty the array every loop.
Although this does not help you right away, there is an alternative that can work with both Unix (fcntl) and Windows (win32 api calls), called: portalocker
It describes itself as a cross-platform (posix/nt) API for flock-style file locking for Python. It basically maps fcntl to win32 api calls.
The original code at http://code.activestate.com/recipes/65203/ can now be installed as a separate package - https://pypi.python.org/pypi/portalocker
that depends on what you want to markup.
<a>
inside <span>
.<span>
into <a>
If your path to view is true first try to config:cache
and route:cache
if nothing changed check your resource path permission are true.
example: your can do it in ubuntu with :
sudo chgrp -R www-data resources/views
sudo usermod -a -G www-data $USER
template <typename type>
class number_of_decimal_digits {
const powers_and_max<type> mPowersAndMax;
public:
number_of_decimal_digits(){
}
inline size_t ndigits( type i) const {
if(i<0){
i += (i == std::numeric_limits<type>::min());
i=-i;
}
const type* begin = &*mPowersAndMax.begin();
const type* end = begin+mPowersAndMax.size();
return 1 + std::lower_bound(begin,end,i) - begin;
}
inline size_t string_ndigits(const type& i) const {
return (i<0) + ndigits(i);
}
inline size_t operator[](const type& i) const {
return string_ndigits(i);
}
};
where in powers_and_max
we have (10^n)-1
for all n
such that
(10^n) <
std::numeric_limits<type>::max()
and std::numeric_limits<type>::max()
in an array:
template <typename type>
struct powers_and_max : protected std::vector<type>{
typedef std::vector<type> super;
using super::const_iterator;
using super::size;
type& operator[](size_t i)const{return super::operator[](i)};
const_iterator begin()const {return super::begin();}
const_iterator end()const {return super::end();}
powers_and_max() {
const int size = (int)(log10(double(std::numeric_limits<type>::max())));
int j = 0;
type i = 10;
for( ; j<size ;++j){
push_back(i-1);//9,99,999,9999 etc;
i*=10;
}
ASSERT(back()<std::numeric_limits<type>::max());
push_back(std::numeric_limits<type>::max());
}
};
here's a simple test:
number_of_decimal_digits<int> ndd;
ASSERT(ndd[0]==1);
ASSERT(ndd[9]==1);
ASSERT(ndd[10]==2);
ASSERT(ndd[-10]==3);
ASSERT(ndd[-1]==2);
ASSERT(ndd[-9]==2);
ASSERT(ndd[1000000000]==10);
ASSERT(ndd[0x7fffffff]==10);
ASSERT(ndd[-1000000000]==11);
ASSERT(ndd[0x80000000]==11);
Of course any other implementation of an ordered set might be used for powers_and_max
and if there was knowledge that there would be clustering but no knowledge of where the cluster might be perhaps a self adjusting tree implementation might be best
You don't appear to understand what still reachable
means.
Anything still reachable
is not a leak. You don't need to do anything about it.
Hope this will help!
@OneToOne(optional = false)
@JoinColumn(name = "department_id", insertable = false, updatable = false)
@JsonManagedReference
private Department department;
@JsonIgnore
public Department getDepartment() {
return department;
}
@OneToOne(mappedBy = "department")
private Designation designation;
@JsonIgnore
public Designation getDesignation() {
return designation;
}
Try this code,
SELECT
*
FROM
`customers`
WHERE
(
CONVERT
(`customer_code` USING utf8mb4) LIKE '%Mary%'
OR
CONVERT(`customer_name` USING utf8mb4) LIKE '%Mary%'
OR
CONVERT(`email_id` USING utf8mb4) LIKE '%Mary%'
OR
CONVERT(`address1` USING utf8mb4) LIKE '%Mary%'
OR
CONVERT(`report_sorting` USING utf8mb4) LIKE '%Mary%'
)
This is help to solve your problem mysql version 5.7.21
This will work in all JavaScript implementations:
var keys = [];
for (var key in driversCounter) {
if (driversCounter.hasOwnProperty(key)) {
keys.push(key);
}
}
Like others mentioned before you may use Object.keys
, but it may not work in older engines. So you can use the following monkey patch:
if (!Object.keys) {
Object.keys = function (object) {
var keys = [];
for (var key in object) {
if (object.hasOwnProperty(key)) {
keys.push(key);
}
}
}
}
By playing with parameters as -XX:PermSize
and -Xms
you can tune the performance of - for example - the startup of your application. I haven't looked at it recently, but a few years back the default value of -Xms
was something like 32MB (I think), if your application required a lot more than that it would trigger a number of cycles of fill memory - full garbage collect - increase memory etc until it had loaded everything it needed. This cycle can be detrimental for startup performance, so immediately assigning the number required could improve startup.
A similar cycle is applied to the permanent generation. So tuning these parameters can improve startup (amongst others).
WARNING The JVM has a lot of optimization and intelligence when it comes to allocating memory, dividing eden space and older generations etc, so don't do things like making -Xms
equal to -Xmx
or -XX:PermSize
equal to -XX:MaxPermSize
as it will remove some of the optimizations the JVM can apply to its allocation strategies and therefor reduce your application performance instead of improving it.
As always: make non-trivial measurements to prove your changes actually improve performance overall (for example improving startup time could be disastrous for performance during use of the application)
If you are fine using a graphical tool this works very well:
gitk <file>
gitk now shows all commits where the file has been updated. Marking a commit will show you the diff against the previous commit in the list. This also works for directories, but then you also get to select the file to diff for the selected commit. Super useful!
For Windows users.
This happens because the MondgDB server is stopped. to fix this you can,
1 search for Services ,for that search using the left bottom corner search option.
2 then there is a gear icon named with 'Services'.
3 after clicking that you will get a window with lot of services
4 scroll down and you will find 'MongoDB server (MongoDB)'.
5 so you will see that there is an option to start the service.
6 start it.
1 then open your command prompt.
2 type mongod
now you can connect to your server.
this steps also working fine if your sql server service down. (find sql server services)
No, it is generally not possible. Once some CSS (or HTML) code sets a value for a property on an element, there is no way to undo it and tell the browser to use its default value.
It is of course possible to set a property a value that you expect to be the default value. This may work rather widely if you check the Rendering section of HTML5 CR, mostly reflecting what browsers actually do.
Still, the answer is “No”, because browsers may have whatever default values they like. You should analyze what was the reason for wanting to reset to defaults; the original problem may still be solvable.
This example (although not pretty one) can provide more insight into locking mechanism. If incrementA is synchronized, and incrementB is not synchronized, then incrementB will be executed ASAP, but if incrementB is also synchronized then it has to 'wait' for incrementA to finish, before incrementB can do its job.
Both methods are called onto single instance - object, in this example it is: job, and 'competing' threads are aThread and main.
Try with 'synchronized' in incrementB and without it and you will see different results.If incrementB is 'synchronized' as well then it has to wait for incrementA() to finish. Run several times each variant.
class LockTest implements Runnable {
int a = 0;
int b = 0;
public synchronized void incrementA() {
for (int i = 0; i < 100; i++) {
this.a++;
System.out.println("Thread: " + Thread.currentThread().getName() + "; a: " + this.a);
}
}
// Try with 'synchronized' and without it and you will see different results
// if incrementB is 'synchronized' as well then it has to wait for incrementA() to finish
// public void incrementB() {
public synchronized void incrementB() {
this.b++;
System.out.println("*************** incrementB ********************");
System.out.println("Thread: " + Thread.currentThread().getName() + "; b: " + this.b);
System.out.println("*************** incrementB ********************");
}
@Override
public void run() {
incrementA();
System.out.println("************ incrementA completed *************");
}
}
class LockTestMain {
public static void main(String[] args) throws InterruptedException {
LockTest job = new LockTest();
Thread aThread = new Thread(job);
aThread.setName("aThread");
aThread.start();
Thread.sleep(1);
System.out.println("*************** 'main' calling metod: incrementB **********************");
job.incrementB();
}
}
I figured out Leafpad to be an adequate and simple text-editor to view and save/convert in certain character sets - at least in the linux-world.
I used this to save the Latin-15 to UTF-8 and it worked.
You don't specify which shell (there are many), so I am assuming Bourne Shell, that is I think your script starts with:
#!/bin/sh
Please remember to tag future questions with the shell type, as this will help the community answer your question.
You need to define your functions before you call them. Using ()
:
process_install()
{
echo "Performing process_install() commands, using arguments [${*}]..."
}
process_exit()
{
echo "Performing process_exit() commands, using arguments [${*}]..."
}
Then you can call your functions, just as if you were calling any command:
if [ "$choice" = "true" ]
then
process_install foo bar
elif [ "$choice" = "false" ]
then
process_exit baz qux
You may also wish to check for invalid choices at this juncture...
else
echo "Invalid choice [${choice}]..."
fi
See it run with three different values of ${choice}.
Good luck!
if a device has an SD card, you use:
Environment.getExternalStorageState()
if you don't have an SD card, you use:
Environment.getDataDirectory()
if there is no SD card, you can create your own directory on the device locally.
//if there is no SD card, create new directory objects to make directory on device
if (Environment.getExternalStorageState() == null) {
//create new file directory object
directory = new File(Environment.getDataDirectory()
+ "/RobotiumTestLog/");
photoDirectory = new File(Environment.getDataDirectory()
+ "/Robotium-Screenshots/");
/*
* this checks to see if there are any previous test photo files
* if there are any photos, they are deleted for the sake of
* memory
*/
if (photoDirectory.exists()) {
File[] dirFiles = photoDirectory.listFiles();
if (dirFiles.length != 0) {
for (int ii = 0; ii <= dirFiles.length; ii++) {
dirFiles[ii].delete();
}
}
}
// if no directory exists, create new directory
if (!directory.exists()) {
directory.mkdir();
}
// if phone DOES have sd card
} else if (Environment.getExternalStorageState() != null) {
// search for directory on SD card
directory = new File(Environment.getExternalStorageDirectory()
+ "/RobotiumTestLog/");
photoDirectory = new File(
Environment.getExternalStorageDirectory()
+ "/Robotium-Screenshots/");
if (photoDirectory.exists()) {
File[] dirFiles = photoDirectory.listFiles();
if (dirFiles.length > 0) {
for (int ii = 0; ii < dirFiles.length; ii++) {
dirFiles[ii].delete();
}
dirFiles = null;
}
}
// if no directory exists, create new directory to store test
// results
if (!directory.exists()) {
directory.mkdir();
}
}// end of SD card checking
add permissions on your manifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Happy coding..
First of all, there are still browsers out there that don't support those pseudo-elements (ie. :first-child, :last-child), so you have to 'deal' with this issue.
There is a good example how to make that work without using pseudo-elements:
-- see the divider pipe example.
I hope that was useful.
Yes, it does deserialize to List<>. No need to keep it in an array and wrap/encapsulate it in a list.
public class UserHolder
{
private List<User> users = null;
public UserHolder()
{
}
[XmlElement("user")]
public List<User> Users
{
get { return users; }
set { users = value; }
}
}
Deserializing code,
XmlSerializer xs = new XmlSerializer(typeof(UserHolder));
UserHolder uh = (UserHolder)xs.Deserialize(new StringReader(str));
I work with a bunch of UI frameworks. Many of them have a built-in class you can use to visually hide things.
<input type="submit" class="sr-only" tabindex="-1">
<input type="submit" class="cdk-visually-hidden" tabindex="-1">
Brilliant minds who created these frameworks have defined these styles as follows:
.sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
.cdk-visually-hidden {
border: 0;
clip: rect(0 0 0 0);
height: 1px;
margin: -1px;
overflow: hidden;
padding: 0;
position: absolute;
width: 1px;
outline: 0;
-webkit-appearance: none;
-moz-appearance: none;
}
Just use this after executing mongoimport
It will return number of objects imported
use db
db.collectionname.find().count()
will return the number of objects.
This seems to work with closed file: add a pivot table (rows, tabular layout, no subtotals, no grand totals) of the source to the current workbook, then reference all you want from that pivot table, INDIRECT, LOOKUPs,...
Hurrah! Adding commons-collections jar files to my project resolved this problem. Two thumbs up to Lucky Sharma.
Solution: Add commons-collections4-4.1.jar file in your build path and try it again. It will work.
You can download it from https://mvnrepository.com/artifact/org.apache.commons/commons-collections4/4.1
You can use the collate clause in a query (I can't find my example right now, so my syntax is probably wrong - I hope it points you in the right direction)
select sone_field collate SQL_Latin1_General_CP850_CI_AI
from table_1
inner join table_2
on (table_1.field collate SQL_Latin1_General_CP850_CI_AI = table_2.field)
where whatever
sorted(list, key=lambda x: x[1])
Note: this works on time variable too.
Run a test.
string coerce: 7.42296099663
string cast: 8.05654597282
string fail coerce: 7.14159703255
string fail cast: 7.87444186211
This was a test that ran each scenario 10,000,000 times. :-)
Co-ercion is 0 + "123"
Casting is (integer)"123"
I think Co-ercion is a tiny bit faster. Oh, and trying 0 + array('123')
is a fatal error in PHP. You might want your code to check the type of the supplied value.
My test code is below.
function test_string_coerce($s) {
return 0 + $s;
}
function test_string_cast($s) {
return (integer)$s;
}
$iter = 10000000;
print "-- running each text $iter times.\n";
// string co-erce
$string_coerce = new Timer;
$string_coerce->Start();
print "String Coerce test\n";
for( $i = 0; $i < $iter ; $i++ ) {
test_string_coerce('123');
}
$string_coerce->Stop();
// string cast
$string_cast = new Timer;
$string_cast->Start();
print "String Cast test\n";
for( $i = 0; $i < $iter ; $i++ ) {
test_string_cast('123');
}
$string_cast->Stop();
// string co-erce fail.
$string_coerce_fail = new Timer;
$string_coerce_fail->Start();
print "String Coerce fail test\n";
for( $i = 0; $i < $iter ; $i++ ) {
test_string_coerce('hello');
}
$string_coerce_fail->Stop();
// string cast fail
$string_cast_fail = new Timer;
$string_cast_fail->Start();
print "String Cast fail test\n";
for( $i = 0; $i < $iter ; $i++ ) {
test_string_cast('hello');
}
$string_cast_fail->Stop();
// -----------------
print "\n";
print "string coerce: ".$string_coerce->Elapsed()."\n";
print "string cast: ".$string_cast->Elapsed()."\n";
print "string fail coerce: ".$string_coerce_fail->Elapsed()."\n";
print "string fail cast: ".$string_cast_fail->Elapsed()."\n";
class Timer {
var $ticking = null;
var $started_at = false;
var $elapsed = 0;
function Timer() {
$this->ticking = null;
}
function Start() {
$this->ticking = true;
$this->started_at = microtime(TRUE);
}
function Stop() {
if( $this->ticking )
$this->elapsed = microtime(TRUE) - $this->started_at;
$this->ticking = false;
}
function Elapsed() {
switch( $this->ticking ) {
case true: return "Still Running";
case false: return $this->elapsed;
case null: return "Not Started";
}
}
}
@m-ali answer is right but also keep in mind that logs could grow a lot if you don't commit the transaction after each chunk and perform a checkpoint. This is how I would do it and take this article http://sqlperformance.com/2013/03/io-subsystem/chunk-deletes as reference, with performance tests and graphs:
DECLARE @Deleted_Rows INT;
SET @Deleted_Rows = 1;
WHILE (@Deleted_Rows > 0)
BEGIN
BEGIN TRANSACTION
-- Delete some small number of rows at a time
DELETE TOP (10000) LargeTable
WHERE readTime < dateadd(MONTH,-7,GETDATE())
SET @Deleted_Rows = @@ROWCOUNT;
COMMIT TRANSACTION
CHECKPOINT -- for simple recovery model
END
I would recommend keeping the object you have, and just utilizing the properties that you want, rather than removing the resolution you already have.
If you want to print it in a certain format you may want to look at this...That way you can preserve your resolution further down the line.
That being said you can create a new DateTime
object using only the properties you want as @romkyns has in his answer.
You can use this regex to get the yyyy-MM-dd format:
((?:19|20)\\d\\d)-(0?[1-9]|1[012])-([12][0-9]|3[01]|0?[1-9])
You can find example for date validation: How to validate date with regular expression.
The data type TEXT is old and should not be used anymore, it is a pain to select data out of a TEXT column.
ntext, text, and image (Transact-SQL)
ntext, text, and image data types will be removed in a future version of Microsoft SQL Server. Avoid using these data types in new development work, and plan to modify applications that currently use them. Use nvarchar(max), varchar(max), and varbinary(max) instead.
you need to use TEXTPTR (Transact-SQL) to retrieve the text data.
Also see this article on Handling The Text Data Type.
eryksun has answered question #1, and I've answered question #3 (the original #4), but now let's answer question #2:
Why does it release 50.5mb in particular - what is the amount that is released based on?
What it's based on is, ultimately, a whole series of coincidences inside Python and malloc
that are very hard to predict.
First, depending on how you're measuring memory, you may only be measuring pages actually mapped into memory. In that case, any time a page gets swapped out by the pager, memory will show up as "freed", even though it hasn't been freed.
Or you may be measuring in-use pages, which may or may not count allocated-but-never-touched pages (on systems that optimistically over-allocate, like linux), pages that are allocated but tagged MADV_FREE
, etc.
If you really are measuring allocated pages (which is actually not a very useful thing to do, but it seems to be what you're asking about), and pages have really been deallocated, two circumstances in which this can happen: Either you've used brk
or equivalent to shrink the data segment (very rare nowadays), or you've used munmap
or similar to release a mapped segment. (There's also theoretically a minor variant to the latter, in that there are ways to release part of a mapped segment—e.g., steal it with MAP_FIXED
for a MADV_FREE
segment that you immediately unmap.)
But most programs don't directly allocate things out of memory pages; they use a malloc
-style allocator. When you call free
, the allocator can only release pages to the OS if you just happen to be free
ing the last live object in a mapping (or in the last N pages of the data segment). There's no way your application can reasonably predict this, or even detect that it happened in advance.
CPython makes this even more complicated—it has a custom 2-level object allocator on top of a custom memory allocator on top of malloc
. (See the source comments for a more detailed explanation.) And on top of that, even at the C API level, much less Python, you don't even directly control when the top-level objects are deallocated.
So, when you release an object, how do you know whether it's going to release memory to the OS? Well, first you have to know that you've released the last reference (including any internal references you didn't know about), allowing the GC to deallocate it. (Unlike other implementations, at least CPython will deallocate an object as soon as it's allowed to.) This usually deallocates at least two things at the next level down (e.g., for a string, you're releasing the PyString
object, and the string buffer).
If you do deallocate an object, to know whether this causes the next level down to deallocate a block of object storage, you have to know the internal state of the object allocator, as well as how it's implemented. (It obviously can't happen unless you're deallocating the last thing in the block, and even then, it may not happen.)
If you do deallocate a block of object storage, to know whether this causes a free
call, you have to know the internal state of the PyMem allocator, as well as how it's implemented. (Again, you have to be deallocating the last in-use block within a malloc
ed region, and even then, it may not happen.)
If you do free
a malloc
ed region, to know whether this causes an munmap
or equivalent (or brk
), you have to know the internal state of the malloc
, as well as how it's implemented. And this one, unlike the others, is highly platform-specific. (And again, you generally have to be deallocating the last in-use malloc
within an mmap
segment, and even then, it may not happen.)
So, if you want to understand why it happened to release exactly 50.5mb, you're going to have to trace it from the bottom up. Why did malloc
unmap 50.5mb worth of pages when you did those one or more free
calls (for probably a bit more than 50.5mb)? You'd have to read your platform's malloc
, and then walk the various tables and lists to see its current state. (On some platforms, it may even make use of system-level information, which is pretty much impossible to capture without making a snapshot of the system to inspect offline, but luckily this isn't usually a problem.) And then you have to do the same thing at the 3 levels above that.
So, the only useful answer to the question is "Because."
Unless you're doing resource-limited (e.g., embedded) development, you have no reason to care about these details.
And if you are doing resource-limited development, knowing these details is useless; you pretty much have to do an end-run around all those levels and specifically mmap
the memory you need at the application level (possibly with one simple, well-understood, application-specific zone allocator in between).
There's a solution at CMD: Set buffer height independently of window height effectively employing a powershell command executed from the batch script. This solution let me resize the scrollback buffer in the existing batch script window independently of the window size, exactly what the OP was asking for.
Caveat: It seems to make the script forget variables (or at least it did with my script), so I recommend calling the command only at the beginning and / or end of your script, or otherwise where you don't depend on a session local variable.
In my case my project root directory consists ".project". This contain the XML reference of the project name.
By removing this, i am able to create a project.
Detecting IE version using feature detection (IE6+, browsers prior to IE6 are detected as 6, returns null for non-IE browsers):
var ie = (function (){
if (window.ActiveXObject === undefined) return null; //Not IE
if (!window.XMLHttpRequest) return 6;
if (!document.querySelector) return 7;
if (!document.addEventListener) return 8;
if (!window.atob) return 9;
if (!document.__proto__) return 10;
return 11;
})();
Edit: I've created a bower/npm repo for your convenience: ie-version
Update:
a more compact version can be written in one line as:
return window.ActiveXObject === undefined ? null : !window.XMLHttpRequest ? 6 : !document.querySelector ? 7 : !document.addEventListener ? 8 : !window.atob ? 9 : !document.__proto__ ? 10 : 11;
In general you can use pandas rename function here. Given your dataframe you could change to a new name like this. If you had more columns you could also rename those in the dictionary. The 0 is the current name of your column
import pandas as pd
import numpy as np
e = np.random.normal(size=100)
e_dataframe = pd.DataFrame(e)
e_dataframe.rename(index=str, columns={0:'new_column_name'})
hosts file:
1.2.3.4 google.com
1.2.3.4 - ip of your server.
Run script on the server for redirecting users to url that you want.
you can use jQuery. which make it very simple.
just download the jQuery file add jQuery into your HTML
or you can user online link:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
and try this:
$("#divID").append(data);
Just to propose a sed
alternative. :) To skip first one million lines, try |sed '1,1000000d'
.
Example:
$ perl -wle 'print for (1..1_000_005)'|sed '1,1000000d'
1000001
1000002
1000003
1000004
1000005
you can try this, I would do it with CSS, but i think you want it with tables without CSS.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body leftmargin=0 rightmargin=0>
<table cellpadding="0" cellspacing="0" width="100%" border="1" height="350px">
<tr>
<td width="25%"> </td>
<td width="25%"> </td>
<td width="25%"> </td>
<td width="25%"> </td>
</tr>
</table>
</body>
</html>
$(document).ready(function() {_x000D_
$('#InventoryMasterError').click(function(event) { //on click_x000D_
if (this.checked) { // check select status_x000D_
$('.checkerror').each(function() { //loop through each checkbox_x000D_
$('#selecctall').attr('disabled', 'disabled');_x000D_
});_x000D_
} else {_x000D_
$('.checkerror').each(function() { //loop through each checkbox_x000D_
$('#selecctall').removeAttr('disabled', 'disabled');_x000D_
});_x000D_
}_x000D_
});_x000D_
_x000D_
});_x000D_
_x000D_
$(document).ready(function() {_x000D_
$('#selecctall').click(function(event) { //on click_x000D_
if (this.checked) { // check select status_x000D_
$('.checkbox1').each(function() { //loop through each checkbox_x000D_
$('#InventoryMasterError').attr('disabled', 'disabled');_x000D_
});_x000D_
_x000D_
} else {_x000D_
$('.checkbox1').each(function() { //loop through each checkbox_x000D_
$('#InventoryMasterError').removeAttr('disabled', 'disabled');_x000D_
});_x000D_
}_x000D_
});_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<input type="checkbox" id="selecctall" name="selecctall" value="All" />_x000D_
<input type="checkbox" name="data[InventoryMaster][error]" label="" value="error" id="InventoryMasterError" />_x000D_
<input type="checkbox" name="checkid[]" class="checkbox1" value="1" id="InventoryMasterId" />_x000D_
<input type="checkbox" name="checkid[]" class="checkbox1" value="2" id="InventoryMasterId" />
_x000D_
Following will give you the selected content as well as updating the clipboard.
Bind the element id with copy event and then get the selected text. You could replace or modify the text. Get the clipboard and set the new text. To get the exact formatting you need to set the type as "text/hmtl". You may also bind it to the document instead of element.
document.querySelector('element').bind('copy', function(event) {
var selectedText = window.getSelection().toString();
selectedText = selectedText.replace(/\u200B/g, "");
clipboardData = event.clipboardData || window.clipboardData || event.originalEvent.clipboardData;
clipboardData.setData('text/html', selectedText);
event.preventDefault();
});
You should know more about java.lang.Math.max
:
java.lang.Math.max(arg1,arg2)
only accepts 2 arguments but you are
writing 3 arguments in your code.double
,int
,long
and float
but your are
writing String
arguments in Math.max function. You need to parse them in the required type.You code will produce compile time error because of above mismatches.
Try following updated code, that will solve your purpose:
import java.lang.Math;
import java.util.Scanner;
public class max {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("Please input 3 integers: ");
int x = Integer.parseInt(keyboard.nextLine());
int y = Integer.parseInt(keyboard.nextLine());
int z = Integer.parseInt(keyboard.nextLine());
int max = Math.max(x,y);
if(max>y){ //suppose x is max then compare x with z to find max number
max = Math.max(x,z);
}
else{ //if y is max then compare y with z to find max number
max = Math.max(y,z);
}
System.out.println("The max of three is: " + max);
}
}
Another example, which is really a variation of another answer, in that it uses a dictionary too:
>>> vr={}
... for num in range(1,4):
... vr[str(num)] = 5 + num
...
>>> print vr["3"]
8
>>>
It is even easier in Swift:
let string : String = "Hello "
let characters = Array(string)
println(characters)
// [H, e, l, l, o, , , , , ]
This uses the facts that
Array
can be created from a SequenceType
, andString
conforms to the SequenceType
protocol, and its sequence generator
enumerates the characters.And since Swift strings have full support for Unicode, this works even with characters outside of the "Basic Multilingual Plane" (such as ) and with extended grapheme clusters (such as , which is actually composed of two Unicode scalars).
Update: As of Swift 2, String
does no longer conform to
SequenceType
, but the characters
property provides a sequence of the
Unicode characters:
let string = "Hello "
let characters = Array(string.characters)
print(characters)
This works in Swift 3 as well.
Update: As of Swift 4, String
is (again) a collection of its
Character
s:
let string = "Hello "
let characters = Array(string)
print(characters)
// ["H", "e", "l", "l", "o", " ", "", "", " ", ""]
Don't use localhost in the url!
Use like this:
# perl -de 0
$match="hi(.*)"
$sub='$1'
$res="hi1234"
$res =~ s/$match/$sub/gee
p $res
1234
Be careful, though. This causes two layers of eval
to occur, one for each e
at the end of the regex:
class Countries < ActiveRecord::Base
self.table_name = "cc"
end
In Rails 3.x this is the way to specify the table name.
I don't think location.LatLng
is working, however this works:
results[0].geometry.location.lat(), results[0].geometry.location.lng()
Found it while exploring Get Lat Lon source code.
A pixel is the smallest unit value to render something with, but you can trick thickness with optical illusions by modifying colors (the eye can only see up to a certain resolution too).
Here is a test to prove this point:
div { border-color: blue; border-style: solid; margin: 2px; }
div.b1 { border-width: 1px; }
div.b2 { border-width: 0.1em; }
div.b3 { border-width: 0.01em; }
div.b4 { border-width: 1px; border-color: rgb(160,160,255); }
_x000D_
<div class="b1">Some text</div>
<div class="b2">Some text</div>
<div class="b3">Some text</div>
<div class="b4">Some text</div>
_x000D_
Which gives the illusion that the last DIV
has a smaller border width, because the blue border blends more with the white background.
Alpha values may also be used to simulate the same effect, without the need to calculate and manipulate RGB values.
.container {
border-style: solid;
border-width: 1px;
margin-bottom: 10px;
}
.border-100 { border-color: rgba(0,0,255,1); }
.border-75 { border-color: rgba(0,0,255,0.75); }
.border-50 { border-color: rgba(0,0,255,0.5); }
.border-25 { border-color: rgba(0,0,255,0.25); }
_x000D_
<div class="container border-100">Container 1 (alpha = 1)</div>
<div class="container border-75">Container 2 (alpha = 0.75)</div>
<div class="container border-50">Container 3 (alpha = 0.5)</div>
<div class="container border-25">Container 4 (alpha = 0.25)</div>
_x000D_
These would both work as well, letting Excel define the last time it sees data
numofrows = destsheet.UsedRange.SpecialCells(xlLastCell).row
numofrows = destsheet.Cells.SpecialCells(xlLastCell).row
This error is occur,because the function is not defined. In my case i have called the datepicker function without including the datepicker js file that time I got this error.
You should not use title attribute for the img element. The reasoning behind this is quite simple:
Presumably caption information is important information that should be available to all users by default. If so present this content as text next to the image.
Source: http://blog.paciellogroup.com/2010/11/using-the-html-title-attribute/
HTML 5.1 includes general advice on use of the title attribute:
Relying on the title attribute is currently discouraged as many user agents do not expose the attribute in an accessible manner as required by this specification (e.g. requiring a pointing device such as a mouse to cause a tooltip to apear, which excludes keyboard-only users and touch-only users, such as anyone with a modern phone or tablet).
Source: http://www.w3.org/html/wg/drafts/html/master/dom.html#the-title-attribute
When it comes to accessibility and different screen readers:
Hence, as Denis Boudreau adequately put it: clearly not a recommended practice.
Alert message with redirect
Response.Write("<script language='javascript'>window.alert('Popup message ');window.location='webform.aspx';</script>");
Only alert message
Response.Write("<script language='javascript'>window.alert('Popup message ')</script>");
Permission to view log files is granted to users being in the group adm.
To add a user to this group on the command line issue:
sudo usermod -aG adm <USER>
In the example you give, you're perfectly right, you have to set the title attribute.
If the aria-label
is one tool used by assistive technologies (like screen readers), it is not natively supported on browsers and has no effect on them. It won't be of any help to most of the people targetted by the WCAG (except screen reader users), for instance a person with intellectal disabilities.
The "X" is not sufficient enough to give information to the action led by the button (think about someone with no computer knowledge). It might mean "close", "delete", "cancel", "reduce", a strange cross, a doodle, nothing.
Despite the fact that the W3C seems to promote the aria-label
rather that the title
attribute here: http://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140916/ARIA14 in a similar example, you can see that the technology support does not include standard browsers : http://www.w3.org/WAI/WCAG20/Techniques/ua-notes/aria#ARIA14
In fact aria-label
, in this exact situation might be used to give more context to an action:
For instance, blind people do not perceive popups like those of us with good vision, it's like a change of context. "Back to the page" will be a more convenient alternative for a screen reader, when "Close" is more significant for someone with no screen reader.
<button
aria-label="Back to the page"
title="Close" onclick="myDialog.close()">X</button>
There might be a fix to <input type="button">
- but if there is, I don't know it.
Otherwise, a good option seems to be to replace it with a carefully styled a
element.
Example: http://jsfiddle.net/Uka5v/
.button {
background-color: #E3E1B8;
padding: 2px 4px;
font: 13px sans-serif;
text-decoration: none;
border: 1px solid #000;
border-color: #aaa #444 #444 #aaa;
color: #000
}
Upsides include that the a
element will style consistently between different (older) versions of Internet Explorer without any extra work, and I think my link looks nicer than that button :)
I built a tool for meta generation. It pre-configures entries for Facebook, Google+ and Twitter, and you can use it free here: http://www.groovymeta.com
To answer the question a bit more, OG
tags (Open Graph) tags work similarly to meta tags, and should be placed in the HEAD section of your HTML file. See Facebook's best practises for more information on how to use OG tags effectively.
I use this trick for equal data bucketing. Instead of text result you get the number. Here is example for four buckets. Suppose you have data in A1:A100
range. Put this formula in B1:
=MAX(ROUNDUP(PERCENTRANK($A$1:$A$100,A1) *4,0),1)
Fill down the formula all across B column and you are done. The formula divides the range into 4 equal buckets and it returns the bucket number which the cell A1 falls into. The first bucket contains the lowest 25% of values.
Adjust the number of buckets according to thy wish:
=MAX(ROUNDUP(PERCENTRANK([Range],[OneCellOfTheRangeToTest]) *[NumberOfBuckets],0),1)
The number of observation in each bucket will be equal or almost equal. For example if you have a 100 observations and you want to split it into 3 buckets (like in your example) then the buckets will contain 33, 33, 34 observations. So almost equal. You do not have to worry about that - the formula works that out for you.
Use the DATEDIFF
function with a datepart of day
.
SELECT ...
FROM ...
WHERE DATEDIFF(day, date1, date2) >= 0
Note that if you want to test that date1
<= date2
then you need to test that DATEDIFF(day, date1, date2) >= 0
, or alternatively you could test DATEDIFF(day, date2, date1) <= 0
.
@Geoff's (https://stackoverflow.com/a/25251766/3739540) answer is good, but it throws error code 1 on recompile.
Here is what worked for me (2>nul 1>nul on the end + exit 0):
(if exist "$(TargetDir)*old.pdb" del "$(TargetDir)*old.pdb") & (if exist "$(TargetDir)*.pdb" ren "$(TargetDir)*.pdb" *.old.pdb) 2>nul 1>nul
(if exist "$(TargetDir)*old.dll" del "$(TargetDir)*old.dll") & (if exist "$(TargetDir)*.dll" ren "$(TargetDir)*.dll" *.old.dll) 2>nul 1>nul
exit 0
Looking at PDO :Predefined Constants there is no PDO::PARAM_ARRAY which you would need as is listed on PDOStatement->bindParam
bool PDOStatement::bindParam ( mixed $parameter , mixed &$variable [, int $data_type [, int $length [, mixed $driver_options ]]] )
So I don't think it is achievable.
You probably want to use the 'onbeforeunload' event. It will allow you call a function in the parent window from the child immediately before the child window closes.
So probably something like this:
window.onbeforeunload = function (e) {
window.parent.functonToCallBeforeThisWindowCloses();
};
You can run the SQL Profiler, and filter by CPU or Duration so that you're excluding all the "small stuff". Then it should be a lot easier to determine if you have a problem like a specific stored proc that is running much longer than it should (could be a missing index or something).
Two caveats:
But normally I start with the Activity Monitor or sp_who2.
If you plot in IPython console (where you can't use %matplotlib inline
) instead of Jupyter notebook, and don't want to run plt.show()
repeatedly, you can start IPython console with ipython --pylab
:
$ ipython --pylab
Python 3.6.6 |Anaconda custom (64-bit)| (default, Jun 28 2018, 17:14:51)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.0.1 -- An enhanced Interactive Python. Type '?' for help.
Using matplotlib backend: Qt5Agg
In [1]: import seaborn as sns
In [2]: tips = sns.load_dataset("tips")
In [3]: sns.relplot(x="total_bill", y="tip", data=tips) # you can see the plot now
A GUID is a 128 bit integer (its just in hex rather than base 10). With .NET 4 use http://msdn.microsoft.com/en-us/library/dd268285%28v=VS.100%29.aspx like so:
// Turn a GUID into a string and strip out the '-' characters.
BigInteger huge = BigInteger.Parse(modifiedGuidString, NumberStyles.AllowHexSpecifier)
If you don't have .NET 4 you can look at IntX or Solver Foundation.
I don't see any problem, unless you are not managing them using a connection pool.
If you use connection pool, these connections are re-used instead of initiating new connections. so basically, leaving open connections and re-use them it is less problematic than re-creating them each time.
There are two ways to do this
1) Use get/set service
2)
$scope.$emit('key', {data: value}); //to set the value
$rootScope.$on('key', function (event, data) {}); // to get the value
You will not be able to retrieve a plain text password from wordpress.
Wordpress use a 1 way encryption to store the passwords using a variation of md5. There is no way to reverse this.
See this article for more info http://wordpress.org/support/topic/how-is-the-user-password-encrypted-wp_hash_password
I had same problem with Eclipse 3.7.2 (Indigo) and maven 3.0.4.
In my case, the problem was caused by missing maven-resources-plugin-2.4.3.jar
in {user.home}\.m2\repository\org\apache\maven\plugins\maven-resources-plugin\2.4.3
folder. (no idea why maven didn't update it)
Solution:
1.) add dependency to pom.xml
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4.3</version>
</dependency>
2.) run mvn install
from Eclipse or from command line
3.) refresh the project in eclipse (F5)
4.) run Maven > Update Project Configuration...
on project (right click)
JAR file is downloaded to local repository and there are no errors in WS.
How to get the last N rows of a pandas DataFrame?
If you are slicing by position, __getitem__
(i.e., slicing with[]
) works well, and is the most succinct solution I've found for this problem.
pd.__version__
# '0.24.2'
df = pd.DataFrame({'A': list('aaabbbbc'), 'B': np.arange(1, 9)})
df
A B
0 a 1
1 a 2
2 a 3
3 b 4
4 b 5
5 b 6
6 b 7
7 c 8
df[-3:]
A B
5 b 6
6 b 7
7 c 8
This is the same as calling df.iloc[-3:]
, for instance (iloc
internally delegates to __getitem__
).
As an aside, if you want to find the last N rows for each group, use groupby
and GroupBy.tail
:
df.groupby('A').tail(2)
A B
1 a 2
2 a 3
5 b 6
6 b 7
7 c 8
If the goal simply is to list all computer objects with an empty description attribute try this
import-module activedirectory
$domain = "domain.example.com"
Get-ADComputer -Filter '*' -Properties Description | where { $_.Description -eq $null }
To refine the answer from Zed, and to answer your comment:
INSERT INTO dues_storage
SELECT d.*, CURRENT_DATE()
FROM dues d
WHERE id = 5;
See T.J. Crowder's comment
Yes, it will be encrypted.
You'll understand it if you simply check what happens behind the scenes.
My configuration was like this. I had a QuartzJob , a Service Bean , and Dao . as usual it was configured with LocalSessionFactoryBean (for hibernate) , and SchedulerFactoryBean for Quartz framework. while writing the Quartz job , I by mistake annotated it with @Service , I should not have done that because I was using another strategy to wire the QuartzBean using AutowiringSpringBeanJobFactory extending SpringBeanJobFactory.
So what actually was happening is that due to Quartz Autowire , TX was getting injected to the Job Bean and at the same time Tx Context was set by virtue of @Service annotation and hence the TX was falling out of sync !!
I hope it help to those for whom above solutions really didn't solved the issue. I was using Spring 4.2.5 and Hibernate 4.0.1 ,
I see that in this thread there is a unnecessary suggestion to add @Transactional annotation to the DAO(@Repository) , that is a useless suggestion cause @Repository has all what it needs to have don't have to specially set that @transactional on DAOs , as the DAOs are called from the services which have already being injected by @Trasancational . I hope this might be helpful people who are using Quartz , Spring and Hibernate together.
Hmmm you can find lot of examples for configuring spring framework. Anyways here is a sample
@Configuration
@Import({PersistenceConfig.class})
@ComponentScan(basePackageClasses = {
ServiceMarker.class,
RepositoryMarker.class }
)
public class AppConfig {
}
@Configuration
@PropertySource(value = { "classpath:database/jdbc.properties" })
@EnableTransactionManagement
public class PersistenceConfig {
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH = "hibernate.max_fetch_depth";
private static final String PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE = "hibernate.jdbc.fetch_size";
private static final String PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE = "hibernate.jdbc.batch_size";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
private static final String[] ENTITYMANAGER_PACKAGES_TO_SCAN = {"a.b.c.entities", "a.b.c.converters"};
@Autowired
private Environment env;
@Bean(destroyMethod = "close")
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
dataSource.setUrl(env.getProperty("jdbc.url"));
dataSource.setUsername(env.getProperty("jdbc.username"));
dataSource.setPassword(env.getProperty("jdbc.password"));
return dataSource;
}
@Bean
public JpaTransactionManager jpaTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactoryBean().getObject());
return transactionManager;
}
private HibernateJpaVendorAdapter vendorAdaptor() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setShowSql(true);
return vendorAdapter;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setJpaVendorAdapter(vendorAdaptor());
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
entityManagerFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);
entityManagerFactoryBean.setJpaProperties(jpaHibernateProperties());
return entityManagerFactoryBean;
}
private Properties jpaHibernateProperties() {
Properties properties = new Properties();
properties.put(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH, env.getProperty(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH));
properties.put(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE));
properties.put(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE));
properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));
properties.put(AvailableSettings.SCHEMA_GEN_DATABASE_ACTION, "none");
properties.put(AvailableSettings.USE_CLASS_ENHANCER, "false");
return properties;
}
}
public static void main(String[] args) {
try (GenericApplicationContext springContext = new AnnotationConfigApplicationContext(AppConfig.class)) {
MyService myService = springContext.getBean(MyServiceImpl.class);
try {
myService.handleProcess(fromDate, toDate);
} catch (Exception e) {
logger.error("Exception occurs", e);
myService.handleException(fromDate, toDate, e);
}
} catch (Exception e) {
logger.error("Exception occurs in loading Spring context: ", e);
}
}
@Service
public class MyServiceImpl implements MyService {
@Inject
private MyDao myDao;
@Override
public void handleProcess(String fromDate, String toDate) {
List<Student> myList = myDao.select(fromDate, toDate);
}
}
@Repository
@Transactional
public class MyDaoImpl implements MyDao {
@PersistenceContext
private EntityManager entityManager;
public Student select(String fromDate, String toDate){
TypedQuery<Student> query = entityManager.createNamedQuery("Student.findByKey", Student.class);
query.setParameter("fromDate", fromDate);
query.setParameter("toDate", toDate);
List<Student> list = query.getResultList();
return CollectionUtils.isEmpty(list) ? null : list;
}
}
Assuming maven project:
Properties file should be in src/main/resources/database
folder
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=your db url
jdbc.username=your Username
jdbc.password=Your password
hibernate.max_fetch_depth = 3
hibernate.jdbc.fetch_size = 50
hibernate.jdbc.batch_size = 10
hibernate.show_sql = true
ServiceMarker and RepositoryMarker are just empty interfaces in your service or repository impl package.
Let's say you have package name a.b.c.service.impl
. MyServiceImpl is in this package and so is ServiceMarker.
public interface ServiceMarker {
}
Same for repository marker. Let's say you have a.b.c.repository.impl
or a.b.c.dao.impl
package name. Then MyDaoImpl is in this this package and also Repositorymarker
public interface RepositoryMarker {
}
//dummy class and dummy query
@Entity
@NamedQueries({
@NamedQuery(name="Student.findByKey", query="select s from Student s where s.fromDate=:fromDate" and s.toDate = :toDate)
})
public class Student implements Serializable {
private LocalDateTime fromDate;
private LocalDateTime toDate;
//getters setters
}
@Converter(autoApply = true)
public class LocalDateTimeConverter implements AttributeConverter<LocalDateTime, Timestamp> {
@Override
public Timestamp convertToDatabaseColumn(LocalDateTime dateTime) {
if (dateTime == null) {
return null;
}
return Timestamp.valueOf(dateTime);
}
@Override
public LocalDateTime convertToEntityAttribute(Timestamp timestamp) {
if (timestamp == null) {
return null;
}
return timestamp.toLocalDateTime();
}
}
<properties>
<java-version>1.8</java-version>
<org.springframework-version>4.2.1.RELEASE</org.springframework-version>
<hibernate-entitymanager.version>5.0.2.Final</hibernate-entitymanager.version>
<commons-dbcp2.version>2.1.1</commons-dbcp2.version>
<mysql-connector-java.version>5.1.36</mysql-connector-java.version>
<junit.version>4.12</junit.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate-entitymanager.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-connector-java.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>${commons-dbcp2.version}</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>${java-version}</source>
<target>${java-version}</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
</plugins>
</build>
Hope it helps. Thanks
This is a peculiar question because it's not supposed to be a matter of choice.
When you launch the JVM, you specify a class to run, and it is the main()
of this class where your program starts.
By init()
, I assume you mean the JApplet method. When an applet is launched in the browser, the init()
method of the specified applet is executed as the first order of business.
By run()
, I assume you mean the method of Runnable. This is the method invoked when a new thread is started.
If Eclipse is running your run()
method even though you have no main()
, then it is doing something peculiar and non-standard, but not infeasible. Perhaps you should post a sample class that you've been running this way.
If you are using xampp in windows then please do following
Find short_open_tag using ctrl+f utility
You will found ;short_open_tag
kindly remove the semicolon (;) from line.
and keep it as short_open_tag = on
Finally, restart your Apache server
The steps in order to make a full check are:
Prepare the captor :
ArgumentCaptor<SomeArgumentClass> someArgumentCaptor = ArgumentCaptor.forClass(SomeArgumentClass.class);
verify the call to dependent on component (collaborator of subject under test). times(1) is the default value, so ne need to add it.
verify(dependentOnComponent, times(1)).send(someArgumentCaptor.capture());
Get the argument passed to collaborator
SomeArgumentClass someArgument = messageCaptor.getValue();
someArgument can be used for assertions
You can use str_pad
for adding 0's
str_pad($month, 2, '0', STR_PAD_LEFT);
string str_pad ( string $input , int $pad_length [, string $pad_string = " " [, int $pad_type = STR_PAD_RIGHT ]] )
Your html is invalid button
is not a null tag. Try
<div id="Content">
<button id="Add">Add</button>
</div>
Taken from another post
$checktable = mysql_query("SHOW TABLES LIKE '$this_table'");
$table_exists = mysql_num_rows($checktable) > 0;
You can loop over each row of the DataTable
and check the value.
I'm a big fan of using a foreach loop when using IEnumerable
s. Makes it very simple and clean to look at or process each row
DataTable dtPs = // ... initialize your DataTable
foreach (DataRow dr in dtPs.Rows)
{
if (dr["item_manuf_id"].ToString() == "some value")
{
// do your deed
}
}
Alternatively you can use a PrimaryKey
for your DataTable
. This helps in various ways, but you often need to define one before you can use it.
An example of using one if at http://msdn.microsoft.com/en-us/library/z24kefs8(v=vs.80).aspx
DataTable workTable = new DataTable("Customers");
// set constraints on the primary key
DataColumn workCol = workTable.Columns.Add("CustID", typeof(Int32));
workCol.AllowDBNull = false;
workCol.Unique = true;
workTable.Columns.Add("CustLName", typeof(String));
workTable.Columns.Add("CustFName", typeof(String));
workTable.Columns.Add("Purchases", typeof(Double));
// set primary key
workTable.PrimaryKey = new DataColumn[] { workTable.Columns["CustID"] };
Once you have a primary key defined and data populated, you can use the Find(...) method to get the rows that match your primary key.
Take a look at http://msdn.microsoft.com/en-us/library/y06xa2h1(v=vs.80).aspx
DataRow drFound = dtPs.Rows.Find("some value");
if (drFound["item_manuf_id"].ToString() == "some value")
{
// do your deed
}
Finally, you can use the Select() method to find data within a DataTable
also found at at http://msdn.microsoft.com/en-us/library/y06xa2h1(v=vs.80).aspx.
String sExpression = "item_manuf_id == 'some value'";
DataRow[] drFound;
drFound = dtPs.Select(sExpression);
foreach (DataRow dr in drFound)
{
// do you deed. Each record here was already found to match your criteria
}
Something like this should remove it
document.getElementById('x').style.visibility='hidden';
If you are going to do alot of this dom manipulation might be worth looking at jquery
You can use any one way
NSString *string=[NSString stringWithFormat:@"%@",url1];
or
NSString *str=[url1 absoluteString];
NSLog(@"string :: %@",string);
string :: file:///var/containers/Bundle/Application/E2D7570B-D5A6-45A0-8EAAA1F7476071FE/RemoDuplicateMedia.app/loading_circle_animation.gif
NSLog(@"str :: %@", str);
str :: file:///var/containers/Bundle/Application/E2D7570B-D5A6-45A0-8EAA-A1F7476071FE/RemoDuplicateMedia.app/loading_circle_animation.gif
Another option would be:
SELECT * FROM [Village] WHERE PATINDEX('foo', [CastleType]) <> 0
Use this Utility function escapeQuotes()
in order to escape strings in between Groups and Sets of a RegualrExpression
.
List of Regex Literals to escape <([{\^-=$!|]})?*+.>
public class RegexUtils {
static String escapeChars = "\\.?![]{}()<>*+-=^$|";
public static String escapeQuotes(String str) {
if(str != null && str.length() > 0) {
return str.replaceAll("[\\W]", "\\\\$0"); // \W designates non-word characters
}
return "";
}
}
From the Pattern class the backslash character ('\')
serves to introduce escaped constructs. The string literal "\(hello\)"
is illegal and leads to a compile-time error; in order to match the string (hello) the string literal "\\(hello\\)"
must be used.
Example: String to be matched (hello)
and the regex with a group is (\(hello\))
. Form here you only need to escape matched string as shown below. Test Regex online
public static void main(String[] args) {
String matched = "(hello)", regexExpGrup = "(" + escapeQuotes(matched) + ")";
System.out.println("Regex : "+ regexExpGrup); // (\(hello\))
}
From the link above:
Several of these types can be modified using the keywords signed, unsigned, short, and long. When one of these type modifiers is used by itself, a data type of int is assumed
This means that you can assume the author is using ints.