I'm using a simpler method:
The navigator global object has a property touchpoints, in Internet Exlorer 11 is called msMaxTouchPoints tho.
So if you look for:
navigator.msMaxTouchPoints !== void 0
You will find Internet Explorer 11.
I would use:
awk 'FNR >= 16224 && FNR <= 16482' my_file > extracted.txt
FNR contains the record (line) number of the line being read from the file.
Here is a friendly piece of advice. Use something like Chrome Developer Tools or Firebug for Firefox to inspect your Ajax calls and results.
You may also want to invest some time in understanding a helper library like Underscore, which complements jQuery and gives you 60+ useful functions for manipulating data objects with JavaScript.
Just running the SELECT
statement will have no effect on the data. You have to use an UPDATE
statement with the REPLACE
to make the change occur:
UPDATE photos
SET caption = REPLACE(caption,'"','\'')
Here is a working sample: http://sqlize.com/7FjtEyeLAh
This is what I usually do ,please refer my function below :
This function can extract first number occurance from any string you can modify and use this function according to your usage
public static int GetFirstNumber(this string strInsput)
{
int number = 0;
string strNumber = "";
bool bIsContNo = true;
bool bNoOccued = false;
try
{
var arry = strInsput.ToCharArray(0, strInsput.Length - 1);
foreach (char item in arry)
{
if (char.IsNumber(item))
{
strNumber = strNumber + item.ToString();
bIsContNo = true;
bNoOccued = true;
}
else
{
bIsContNo = false;
}
if (bNoOccued && !bIsContNo)
{
break;
}
}
number = Convert.ToInt32(strNumber);
}
catch (Exception ex)
{
return 0;
}
return number;
}
I found myself in a similar predicament today while trying to run a command through a Node.js module:
I was using the PowerShell and trying to run:
command -e 'func($a)'
But with the extra symbols, PowerShell was mangling the arguments. To fix, I back-tick escaped double-quote marks:
command -e `"func($a)`"
You have to add the targeted map :
var markers = [
{
"title": 'This is title',
"lat": '-37.801578',
"lng": '145.060508',
"map": map,
"icon": 'http://google-maps-icons.googlecode.com/files/sailboat-tourism.png',
"description": 'Vikash Rathee. <strong> This is test Description</strong> <br/><a href="http://www.pricingindia.in/pincode.aspx">Pin Code by
City</a>'
}
];
Here is the answer for those of you who need a Boostrap 3 solution.
In bootstrap 3 use 'shown.bs.tab' instead of 'shown' in the next line
// tab
$('#rowTab a:first').tab('show');
$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
//show selected tab / active
console.log ( $(e.target).attr('id') );
});
The settings you need are "Local echo" and "Line editing" under the "Terminal" category on the left.
To get the characters to display on the screen as you enter them, set "Local echo" to "Force on".
To get the terminal to not send the command until you press Enter, set "Local line editing" to "Force on".
Explanation:
From the PuTTY User Manual (Found by clicking on the "Help" button in PuTTY):
4.3.8 ‘Local echo’
With local echo disabled, characters you type into the PuTTY window are not echoed in the window by PuTTY. They are simply sent to the server. (The server might choose to echo them back to you; this can't be controlled from the PuTTY control panel.)
Some types of session need local echo, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local echo is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local echo to be turned on, or force it to be turned off, instead of relying on the automatic detection.
4.3.9 ‘Local line editing’ Normally, every character you type into the PuTTY window is sent immediately to the server the moment you type it.
If you enable local line editing, this changes. PuTTY will let you edit a whole line at a time locally, and the line will only be sent to the server when you press Return. If you make a mistake, you can use the Backspace key to correct it before you press Return, and the server will never see the mistake.
Since it is hard to edit a line locally without being able to see it, local line editing is mostly used in conjunction with local echo (section 4.3.8). This makes it ideal for use in raw mode or when connecting to MUDs or talkers. (Although some more advanced MUDs do occasionally turn local line editing on and turn local echo off, in order to accept a password from the user.)
Some types of session need local line editing, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local line editing is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local line editing to be turned on, or force it to be turned off, instead of relying on the automatic detection.
Putty sometimes makes wrong choices when "Auto" is enabled for these options because it tries to detect the connection configuration. Applied to serial line, this is a bit trickier to do.
You could always construct the #temp table in dynamic SQL. For example, right now I guess you have been trying:
CREATE TABLE #tmp(a INT, b INT, c INT);
DECLARE @sql NVARCHAR(1000);
SET @sql = N'BULK INSERT #tmp ...' + @variables;
EXEC master.sys.sp_executesql @sql;
SELECT * FROM #tmp;
This makes it tougher to maintain (readability) but gets by the scoping issue:
DECLARE @sql NVARCHAR(MAX);
SET @sql = N'CREATE TABLE #tmp(a INT, b INT, c INT);
BULK INSERT #tmp ...' + @variables + ';
SELECT * FROM #tmp;';
EXEC master.sys.sp_executesql @sql;
EDIT 2011-01-12
In light of how my almost 2-year old answer was suddenly deemed incomplete and unacceptable, by someone whose answer was also incomplete, how about:
CREATE TABLE #outer(a INT, b INT, c INT);
DECLARE @sql NVARCHAR(MAX);
SET @sql = N'SET NOCOUNT ON;
CREATE TABLE #inner(a INT, b INT, c INT);
BULK INSERT #inner ...' + @variables + ';
SELECT * FROM #inner;';
INSERT #outer EXEC master.sys.sp_executesql @sql;
Try the following configuration:
log4j.rootLogger=TRACE, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.appender.debugLog=org.apache.log4j.FileAppender
log4j.appender.debugLog.File=logs/debug.log
log4j.appender.debugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.debugLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.appender.reportsLog=org.apache.log4j.FileAppender
log4j.appender.reportsLog.File=logs/reports.log
log4j.appender.reportsLog.layout=org.apache.log4j.PatternLayout
log4j.appender.reportsLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.category.debugLogger=TRACE, debugLog
log4j.additivity.debugLogger=false
log4j.category.reportsLogger=DEBUG, reportsLog
log4j.additivity.reportsLogger=false
Then configure the loggers in the Java code accordingly:
static final Logger debugLog = Logger.getLogger("debugLogger");
static final Logger resultLog = Logger.getLogger("reportsLogger");
Do you want output to go to stdout
? If not, change the first line of log4j.properties
to:
log4j.rootLogger=OFF
and get rid of the stdout
lines.
As others have referred, names in Oracle SQL must be less or equal to 30 characters. I would add that this rule applies not only to table names but to field names as well. So there you have it.
I don't think you need/want the timeout.
onhover (hover) would be defined as the time period while "over" something. IMHO
onmouseover = start...
onmouseout = ...end
For the record I've done some stuff with this to "fake" the hover event in IE6. It was rather expensive and in the end I ditched it in favor of performance.
Reading quickly through the source it seems that you're not far off. The following link should help (I did something similar but for FTP). For a file send from server to client, you start off with a file instance and an array of bytes. You then read the File into the byte array and write the byte array to the OutputStream which corresponds with the InputStream on the client's side.
http://www.rgagnon.com/javadetails/java-0542.html
Edit: Here's a working ultra-minimalistic file sender and receiver. Make sure you understand what the code is doing on both sides.
package filesendtest;
import java.io.*;
import java.net.*;
class TCPServer {
private final static String fileToSend = "C:\\test1.pdf";
public static void main(String args[]) {
while (true) {
ServerSocket welcomeSocket = null;
Socket connectionSocket = null;
BufferedOutputStream outToClient = null;
try {
welcomeSocket = new ServerSocket(3248);
connectionSocket = welcomeSocket.accept();
outToClient = new BufferedOutputStream(connectionSocket.getOutputStream());
} catch (IOException ex) {
// Do exception handling
}
if (outToClient != null) {
File myFile = new File( fileToSend );
byte[] mybytearray = new byte[(int) myFile.length()];
FileInputStream fis = null;
try {
fis = new FileInputStream(myFile);
} catch (FileNotFoundException ex) {
// Do exception handling
}
BufferedInputStream bis = new BufferedInputStream(fis);
try {
bis.read(mybytearray, 0, mybytearray.length);
outToClient.write(mybytearray, 0, mybytearray.length);
outToClient.flush();
outToClient.close();
connectionSocket.close();
// File sent, exit the main method
return;
} catch (IOException ex) {
// Do exception handling
}
}
}
}
}
package filesendtest;
import java.io.*;
import java.io.ByteArrayOutputStream;
import java.net.*;
class TCPClient {
private final static String serverIP = "127.0.0.1";
private final static int serverPort = 3248;
private final static String fileOutput = "C:\\testout.pdf";
public static void main(String args[]) {
byte[] aByte = new byte[1];
int bytesRead;
Socket clientSocket = null;
InputStream is = null;
try {
clientSocket = new Socket( serverIP , serverPort );
is = clientSocket.getInputStream();
} catch (IOException ex) {
// Do exception handling
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (is != null) {
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try {
fos = new FileOutputStream( fileOutput );
bos = new BufferedOutputStream(fos);
bytesRead = is.read(aByte, 0, aByte.length);
do {
baos.write(aByte);
bytesRead = is.read(aByte);
} while (bytesRead != -1);
bos.write(baos.toByteArray());
bos.flush();
bos.close();
clientSocket.close();
} catch (IOException ex) {
// Do exception handling
}
}
}
}
Related
Byte array of unknown length in java
Edit: The following could be used to fingerprint small files before and after transfer (use SHA if you feel it's necessary):
public static String md5String(File file) {
try {
InputStream fin = new FileInputStream(file);
java.security.MessageDigest md5er = MessageDigest.getInstance("MD5");
byte[] buffer = new byte[1024];
int read;
do {
read = fin.read(buffer);
if (read > 0) {
md5er.update(buffer, 0, read);
}
} while (read != -1);
fin.close();
byte[] digest = md5er.digest();
if (digest == null) {
return null;
}
String strDigest = "0x";
for (int i = 0; i < digest.length; i++) {
strDigest += Integer.toString((digest[i] & 0xff)
+ 0x100, 16).substring(1).toUpperCase();
}
return strDigest;
} catch (Exception e) {
return null;
}
}
Here are the steps:
click File > Import. The Import window opens.
Under Select an import source, click J2EE > App Client JAR file.
Click Next.
In the Application Client file field, enter the location and name of the application client JAR file that you want to import. You can click the Browse button to select the JAR file from the file system.
In the Application Client project field, type a new project name or select an application client project from the drop-down list. If you type a new name in this field, the application client project will be created based on the version of the application client JAR file, and it will use the default location.
In the Target runtime drop-down list, select the application server that you want to target for your development. This selection affects the run time settings by modifying the class path entries for the project.
If you want to add the new module to an enterprise application project, select the Add project to an EAR check box and then select an existing enterprise application project from the list or create a new one by clicking New.
Note: If you type a new enterprise application project name, the enterprise application project will be created in the default location with the lowest compatible J2EE version based on the version of the project being created. If you want to specify a different version or a different location for the enterprise application, you must use the New Enterprise Application Project wizard.
Click Finish to import the application client JAR file.
Thanks Jahmic for the answer. Worked properly for me.
another useful code snippet that read the values and return a string:
public static string ReadSetting(string key)
{
System.Configuration.Configuration cfg = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
System.Configuration.AppSettingsSection appSettings = (System.Configuration.AppSettingsSection)cfg.GetSection("appSettings");
return appSettings.Settings[key].Value;
}
Nullable<T>
(or ?
) exposes a HasValue
flag to denote if a value is set or the item is null.
Also, nullable types support ==
:
if (Age == null)
The ??
is the null coalescing operator and doesn't result in a boolean expression, but a value returned:
int i = Age ?? 0;
So for your example:
if (age == null || age == 0)
Or:
if (age.GetValueOrDefault(0) == 0)
Or:
if ((age ?? 0) == 0)
Or ternary:
int i = age.HasValue ? age.Value : 0;
<a onclick="getCategoryIndex(${myIndex.index})" href="#">${categoryName}</a>
above line was giving me an error. So I wrote down in below way which is working fine for me.
<a onclick="getCategoryIndex('<c:out value="${myIndex.index}"/>')" href="#">${categoryName}</a>
Maybe someone else might get same error. Look at this guys!
You may install your coinhsl library in one of your standard libraries directories and run 'ldconfig` before doing your ppyipopt install
I found both, x64 and x86 version 6.12.0002.633 here:
http://rxwen.blogspot.de/2010/04/standalone-windbg-v6120002633.html
No need to get too complicated, try this one liner:
String fileName = new SimpleDateFormat("yyyyMMddHHmm'.txt'").format(new Date());
Anyone using JavaScript (as opposed to JQuery), might like to try this solution, where 'models' is the ID of the select field containing the list :-
var DDlist = document.getElementById("models");
while(DDlist.length>0){DDlist.remove(0);}
Can't you just add a reference to System.Web
and then you can use Server.MapPath
?
Edit: Nowadays I'd recommend using the HostingEnvironment.MapPath
Method:
It's a static method in System.Web
assembly that Maps a virtual path to a physical path on the server. It doesn't require a reference to HttpContext
.
You need to pass the values of the dict into the Bike
constructor before using like that. Or, see the namedtuple
-- seems more in line with what you're trying to do.
It looks like you forgot to include the ngRoute module in your dependency for myApp.
In Angular 1.2, they've made ngRoute optional (so you can use third-party route providers, etc.) and you have to explicitly depend on it in modules, along with including the separate file.
'use strict';
angular.module('myApp', ['ngRoute']).
config(['$routeProvider', function($routeProvider) {
$routeProvider.otherwise({redirectTo: '/home'});
}]);
ModeleREP#getTimeSeries()
have to be with @Transient
annotation. That would help.
If you are using Python 3.6 or newer, you can use f-string:
>>> test = "have it break."
>>> selectiveEscape = f"Print percent % in sentence and not {test}"
>>> print(selectiveEscape)
... Print percent % in sentence and not have it break.
From APUE, Section 5.14 :
char good_template[] = "/tmp/dirXXXXXX"; /* right way */
char *bad_template = "/tmp/dirXXXXXX"; /* wrong way*/
... For the first template, the name is allocated on the stack, because we use an array variable. For the second name, however, we use a pointer. In this case, only the memory for the pointer itself resides on the stack; the compiler arranges for the string to be stored in the read-only segment of the executable. When the
mkstemp
function tries to modify the string, a segmentation fault occurs.
The quoted text matches @Ciro Santilli 's explanation.
if you are using display:table-cell, max-height will not work for div of this style. so the solution which worked for me is to set the max height of inner div
<div class="outer_div" style="display:table">
<div class="inner_div" style="display:table-cell">
<img src="myimag.jpg" alt="" style="max-height:300px;width:auto"/>
</div>
<div class="inner_div" style="display:table-cell">
<img src="myimag2.jpg" alt="" style="max-height:300px;width:auto"/>
</div>
</div>
p:after {
content: none;
}
This is a way to remove the :after
and you can do the same for :before
First all answers are right, you can pass the data except custom objects by using Intent
. If you want to pass the custom objects, you have to implement Serialazable
or Parcelable
to your custom object class. I thought it's too much complicated...
So if your project is simple, try to use DataCache
. That provides super simple way for passing data.
Ref: Github project CachePot
1- Set this to View or Activity or Fragment which will send data
DataCache.getInstance().push(obj);
2- Get data anywhere like below
public class MainFragment extends Fragment
{
private YourObject obj;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
obj = DataCache.getInstance().pop(YourObject.class);
}//end onCreate()
}//end class MainFragment
if [ -n "$PID" -a -e /proc/$PID ]; then
echo "process exists"
fi
or
if [ -n "$(ps -p $PID -o pid=)" ]
In the latter form, -o pid=
is an output format to display only the process ID column with no header. The quotes are necessary for non-empty string operator -n
to give valid result.
You can use the Session object
import requests
headers = {'User-Agent': 'Mozilla/5.0'}
payload = {'username':'niceusername','password':'123456'}
session = requests.Session()
session.post('https://admin.example.com/login.php',headers=headers,data=payload)
# the session instance holds the cookie. So use it to get/post later.
# e.g. session.get('https://example.com/profile')
if you want to select column with specific name then just do
A=mtcars[,which(conames(mtcars)==cols[1])]
#and then
colnames(mtcars)[A]=cols[1]
you can run it in loop as well reverse way to add dynamic name eg if A is data frame and xyz is column to be named as x then I do like this
A$tmp=xyz
colnames(A)[colnames(A)=="tmp"]=x
again this can also be added in loop
Login into the machine as oracle login user id( where oracle is installed)..
Add ORACLE_HOME = <Oracle installation Directory>
in Environment variable
Open a command prompt
Change the directory to %ORACLE_HOME%\bin
type the command sqlplus /nolog
SQL> connect /as sysdba
SQL> alter user SYS identified by "newpassword";
One more check, while oracle installation and database confiuration assistant setup, if you configure any database then you might have given password and checked the same password for all other accounts.. If so, then you try with the password which you have given in your database configuration assistant setup.
Hope this will work for you..
mysqlshow -i <database_name>
will show the info for all tables of a specific database.
mysqlshow -i <database_name> <table_name>
will do so just for a specific table.
From your stack trace, EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
occurred because dispatch_group_t
was released while it was still locking (waiting for dispatch_group_leave
).
According to what you found, this was what happened :
dispatch_group_t group
was created. group
's retain count = 1.-[self webservice:onCompletion:]
captured the group
. group
's retain count = 2.dispatch_async(...., ^{ dispatch_group_wait(group, ...) ... });
captured the group
again. group
's retain count = 3.group
was released. group
's retain count = 2.dispatch_group_leave
was never called.dispatch_group_wait
was timeout. The dispatch_async
block was completed. group
was released. group
's retain count = 1.-[self webservice:onCompletion:]
was called again, the old onCompletion
block was replaced with the new one. So, the old group
was released. group
's retain count = 0. group
was deallocated. That resulted to EXC_BAD_INSTRUCTION
.To fix this, I suggest you should find out why -[self webservice:onCompletion:]
didn't call onCompletion
block, and fix it. Then make sure the next call to the method will happen after the previous call did finish.
In case you allow the method to be called many times whether the previous calls did finish or not, you might find someone to hold group
for you :
DISPATCH_TIME_FOREVER
or a reasonable amount of time that all -[self webservice:onCompletion]
should call their onCompletion
blocks by the time. So that the block in dispatch_async(...)
will hold it for you.group
into a collection, such as NSMutableArray
.I think it is the best approach to create a dedicate class for this action. When you want to make calls to webservice, you then create an object of the class, call the method on it with the completion block passing to it that will release the object. In the class, there is an ivar of dispatch_group_t
or dispatch_semaphore_t
.
I see, I'm 10 years too late to the party. I was facing the situation, where from some property I can receive either a file name or a full file path. If there is no path provided, I have to check the file-existence by attaching a "global" directory-path provided by another property.
In my case
var isFileName = System.IO.Path.GetFileName (str) == str;
did the trick. Ok, it's not magic, but perhaps this could save someone a few minutes of figuring out. Since this is merely a string-parsing, so Dir-names with dots may give false positives...
<script src="~/fileupload/fileinput.min.js"></script>
<link href="~/fileupload/fileinput.min.css" rel="stylesheet" />
Download above files named fileinput add the path i your index page.
<div class="col-sm-9 col-lg-5" style="margin: 0 0 0 8px;">
<input id="uploadFile1" name="file" type="file" class="file-loading"
`enter code here`accept=".pdf" multiple>
</div>
<script>
$("#uploadFile1").fileinput({
autoReplace: true,
maxFileCount: 5
});
</script>
//Start of Code
Firebase ref = new Firebase(FIREBASE_URL);
ref.addValueEventListener(new ValueEventListener(){
@Override
public void onDataChange(DataSnapshot snapshot){
GenericTypeIndicator<List<YourClassName>> t = new GenericTypeIndicator<List<YourClassName>>{};
List<YourClassName> messages = snapshot.getValue(t);
Log.d("Get Data Size", messages.size());
}
}
@Override
public void onCancelled(FirebaseError firebaseError){
Log.e("The read failed: ",firebaseError.getMessage());
}
});
Update October 2018
If you are still uncertain about Front-end dev, you can take a quick look into an excellent resource here.
https://github.com/kamranahmedse/developer-roadmap
Update June 2018
Learning modern JavaScript is tough if you haven’t been there since the beginning. If you are the newcomer, remember to check this excellent written to have a better overview.
https://medium.com/the-node-js-collection/modern-javascript-explained-for-dinosaurs-f695e9747b70
Update July 2017
Recently I found a comprehensive guide from Grab team about how to approach front-end development in 2017. You can check it out as below.
https://github.com/grab/front-end-guide
I've been also searching for this quite some time since there are a lot of tools out there and each of them benefits us in a different aspect. The community is divided across tools like Browserify, Webpack, jspm, Grunt and Gulp
. You might also hear about Yeoman or Slush
. That’s not a problem, it’s just confusing for everyone trying to understand a clear path forward.
Anyway, I would like to contribute something.
Bower
and NPM
Package managers simplify installing and updating project dependencies, which are libraries such as: jQuery, Bootstrap
, etc - everything that is used on your site and isn't written by you.
Browsing all the library websites, downloading and unpacking the archives, copying files into the projects — all of this is replaced with a few commands in the terminal.
It stands for: Node JS package manager
helps you to manage all the libraries your software relies on. You would define your needs in a file called package.json
and run npm install
in the command line... then BANG, your packages are downloaded and ready to use. It could be used both for front-end and back-end
libraries.
For front-end package management, the concept is the same with NPM. All your libraries are stored in a file named bower.json
and then run bower install
in the command line.
Bower is recommended their user to migrate over to npm or yarn. Please be careful
Bower
and NPM
The biggest difference between
Bower
andNPM
is that NPM does nested dependency tree while Bower requires a flat dependency tree as below.Quoting from What is the difference between Bower and npm?
project root
[node_modules] // default directory for dependencies
-> dependency A
-> dependency B
[node_modules]
-> dependency A
-> dependency C
[node_modules]
-> dependency B
[node_modules]
-> dependency A
-> dependency D
project root
[bower_components] // default directory for dependencies
-> dependency A
-> dependency B // needs A
-> dependency C // needs B and D
-> dependency D
There are some updates on
npm 3 Duplication and Deduplication
, please open the doc for more detail.
A new package manager for JavaScript
published by Facebook
recently with some more advantages compared to NPM
. And with Yarn, you still can use both NPM
and Bower
registry to fetch the package. If you've installed a package before, yarn
creates a cached copy which facilitates offline package installs
.
JSPM is a package manager for the SystemJS
universal module loader, built on top of the dynamic ES6
module loader. It is not an entirely new package manager with its own set of rules, rather it works on top of existing package sources. Out of the box, it works with GitHub
and npm
. As most of the Bower
based packages are based on GitHub
, we can install those packages using jspm
as well. It has a registry that lists most of the commonly used front-end packages for easier installation.
See the different between
Bower
andjspm
: Package Manager: Bower vs jspm
Most projects of any scale will have their code split between several files. You can just include each file with an individual <script>
tag, however, <script>
establishes a new HTTP connection, and for small files – which is a goal of modularity – the time to set up the connection can take significantly longer than transferring the data. While the scripts are downloading, no content can be changed on the page.
E.g
<head>
<title>Wagon</title>
<script src=“build/wagon-bundle.js”></script>
</head>
E.g
<head>
<title>Skateboard</title>
<script src=“connectors/axle.js”></script>
<script src=“frames/board.js”></script>
<!-- skateboard-wheel and ball-bearing both depend on abstract-rolling-thing -->
<script src=“rolling-things/abstract-rolling-thing.js”></script>
<script src=“rolling-things/wheels/skateboard-wheel.js”></script>
<!-- but if skateboard-wheel also depends on ball-bearing -->
<!-- then having this script tag here could cause a problem -->
<script src=“rolling-things/ball-bearing.js”></script>
<!-- connect wheels to axle and axle to frame -->
<script src=“vehicles/skateboard/our-sk8bd-init.js”></script>
</head>
Computers can do that better than you can, and that is why you should use a tool to automatically bundle everything into a single file.
Then we heard about RequireJS
, Browserify
, Webpack
and SystemJS
It is a JavaScript
file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Node
.
E.g: myModule.js
// package/lib is a dependency we require
define(["package/lib"], function (lib) {
// behavior for our module
function foo() {
lib.log("hello world!");
}
// export (expose) foo to other modules as foobar
return {
foobar: foo,
};
});
In main.js
, we can import myModule.js
as a dependency and use it.
require(["package/myModule"], function(myModule) {
myModule.foobar();
});
And then in our HTML
, we can refer to use with RequireJS
.
<script src=“app/require.js” data-main=“main.js” ></script>
Read more about
CommonJS
andAMD
to get understanding easily. Relation between CommonJS, AMD and RequireJS?
Set out to allow the use of CommonJS
formatted modules in the browser. Consequently, Browserify
isn’t as much a module loader as a module bundler: Browserify
is entirely a build-time tool, producing a bundle of code that can then be loaded client-side.
Start with a build machine that has node & npm installed, and get the package:
npm install -g –save-dev browserify
Write your modules in CommonJS
format
//entry-point.js
var foo = require("../foo.js");
console.log(foo(4));
And when happy, issue the command to bundle:
browserify entry-point.js -o bundle-name.js
Browserify recursively finds all dependencies of entry-point and assembles them into a single file:
<script src="”bundle-name.js”"></script>
It bundles all of your static assets, including JavaScript
, images, CSS, and more, into a single file. It also enables you to process the files through different types of loaders. You could write your JavaScript
with CommonJS
or AMD
modules syntax. It attacks the build problem in a fundamentally more integrated and opinionated manner. In Browserify
you use Gulp/Grunt
and a long list of transforms and plugins to get the job done. Webpack
offers enough power out of the box that you typically don’t need Grunt
or Gulp
at all.
Basic usage is beyond simple. Install Webpack like Browserify:
npm install -g –save-dev webpack
And pass the command an entry point and an output file:
webpack ./entry-point.js bundle-name.js
It is a module loader that can import modules at run time in any of the popular formats used today (CommonJS, UMD, AMD, ES6
). It is built on top of the ES6
module loader polyfill and is smart enough to detect the format being used and handle it appropriately. SystemJS
can also transpile ES6 code (with Babel
or Traceur
) or other languages such as TypeScript
and CoffeeScript
using plugins.
Want to know what is the
node module
and why it is not well adapted to in-browser.
More useful article:
Why
jspm
andSystemJS
?One of the main goals of
ES6
modularity is to make it really simple to install and use any Javascript library from anywhere on the Internet (Github
,npm
, etc.). Only two things are needed:
- A single command to install the library
- One single line of code to import the library and use it
So with
jspm
, you can do it.
- Install the library with a command:
jspm install jquery
- Import the library with a single line of code, no need to external reference inside your HTML file.
display.js
var $ = require('jquery'); $('body').append("I've imported jQuery!");
Then you configure these things within
System.config({ ... })
before importing your module. Normally when runjspm init
, there will be a file namedconfig.js
for this purpose.To make these scripts run, we need to load
system.js
andconfig.js
on the HTML page. After that, we will load thedisplay.js
file using theSystemJS
module loader.index.html
<script src="jspm_packages/system.js"></script> <script src="config.js"></script> <script> System.import("scripts/display.js"); </script>
Noted: You can also use
npm
withWebpack
as Angular 2 has applied it. Sincejspm
was developed to integrate withSystemJS
and it works on top of the existingnpm
source, so your answer is up to you.
Task runners and build tools are primarily command-line tools. Why we need to use them: In one word: automation. The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting which previously cost us a lot of times to do with command line or even manually.
You can create automation for your development environment to pre-process codes or create build scripts with a config file and it seems very difficult to handle a complex task. Popular in the last few years.
Every task in Grunt
is an array of different plugin configurations, that simply get executed one after another, in a strictly independent, and sequential fashion.
grunt.initConfig({
clean: {
src: ['build/app.js', 'build/vendor.js']
},
copy: {
files: [{
src: 'build/app.js',
dest: 'build/dist/app.js'
}]
}
concat: {
'build/app.js': ['build/vendors.js', 'build/app.js']
}
// ... other task configurations ...
});
grunt.registerTask('build', ['clean', 'bower', 'browserify', 'concat', 'copy']);
Automation just like Grunt
but instead of configurations, you can write JavaScript
with streams like it's a node application. Prefer these days.
This is a Gulp
sample task declaration.
//import the necessary gulp plugins
var gulp = require("gulp");
var sass = require("gulp-sass");
var minifyCss = require("gulp-minify-css");
var rename = require("gulp-rename");
//declare the task
gulp.task("sass", function (done) {
gulp
.src("./scss/ionic.app.scss")
.pipe(sass())
.pipe(gulp.dest("./www/css/"))
.pipe(
minifyCss({
keepSpecialComments: 0,
})
)
.pipe(rename({ extname: ".min.css" }))
.pipe(gulp.dest("./www/css/"))
.on("end", done);
});
See more: https://preslav.me/2015/01/06/gulp-vs-grunt-why-one-why-the-other/
You can create starter projects with them. For example, you are planning to build a prototype with HTML and SCSS, then instead of manually create some folder like scss, css, img, fonts. You can just install yeoman
and run a simple script. Then everything here for you.
Find more here.
npm install -g yo
npm install --global generator-h5bp
yo h5bp
My answer is not matched with the content of the question but when I'm searching for this knowledge on Google, I always see the question on top so that I decided to answer it in summary. I hope you guys found it helpful.
If you like this post, you can read more on my blog at trungk18.com. Thanks for visiting :)
I know this is an old question but I recently faced a similar issue which couldn't be solved by this way, as I had to return an empty array of a specific type.
I had
return [];
where []
was Criminal[]
type.
Neither return: Criminal[] [];
nor return []: Criminal[];
worked for me.
At first glance I solved it by creating a typed variable (as you correctly reported) just before returning it, but (I don't know how JavaScript engines work) it may create overhead and it's less readable.
For thoroughness I'll report this solution in my answer too:
let temp: Criminal[] = [];
return temp;
Eventually I found TypeScript type casting, which allowed me to solve the problem in a more concise and readable (and maybe efficient) way:
return <Criminal[]>[];
Hope this will help future readers!
You can stop catching the exception, or - if you need to catch it (to do some custom handling), you can re-raise:
try:
doSomeEvilThing()
except Exception, e:
handleException(e)
raise
Note that typing raise
without passing an exception object causes the original traceback to be preserved. Typically it is much better than raise e
.
Of course - you can also explicitly call
import sys
sys.exit(exitCodeYouFindAppropriate)
This causes SystemExit exception to be raised, and (unless you catch it somewhere) terminates your application with specified exit code.
A dictionary is something like an array that's accessed by keys (e.g. strings,...) rather than just plain sequential numbers. It contains key/value pairs, you can look up values using a key like using a phone book: key=name, number=value.
For defining such a dictionary, you use this syntax using curly braces, see also: http://wiki.python.org/moin/SimplePrograms
Edit file: sudo nano /etc/httpd/conf.d/phpMyAdmin.conf
and replace yours with following:
<Directory /usr/share/phpMyAdmin/>
AddDefaultCharset UTF-8
<IfModule mod_authz_core.c>
# Apache 2.4
</IfModule>
<IfModule !mod_authz_core.c>
# Apache 2.2
</IfModule>
</Directory>
Restart Apache: service httpd restart
(phpMyAdmin v4.0.10.8)
It occurred to me that you may have actually be asking how to implement the +
operator for dictionaries, the following seems to work:
>>> class Dict(dict):
... def __add__(self, other):
... copy = self.copy()
... copy.update(other)
... return copy
... def __radd__(self, other):
... copy = other.copy()
... copy.update(self)
... return copy
...
>>> default_data = Dict({'item1': 1, 'item2': 2})
>>> default_data + {'item3': 3}
{'item2': 2, 'item3': 3, 'item1': 1}
>>> {'test1': 1} + Dict(test2=2)
{'test1': 1, 'test2': 2}
Note that this is more overhead then using dict[key] = value
or dict.update()
, so I would recommend against using this solution unless you intend to create a new dictionary anyway.
I think that your foreign key is backwards. Try:
ALTER TABLE 'jobs'
ADD CONSTRAINT `advertisers_ibfk_1` FOREIGN KEY (`advertiser_id`) REFERENCES `advertisers` (`advertiser_id`)
You have missed out the field name id
in the second NOT LIKE
. Try:
SELECT * FROM transactions WHERE id NOT LIKE '1%' AND id NOT LIKE '2%'
The AND
in the where clause joins 2 full condition expressions such as id NOT LIKE '1%'
and can't be used to list multiple values that the id is 'not like'.
The fastest way should be:
<%@ page import="java.util.Map" %>
Map<String, String[]> parameters = request.getParameterMap();
for (Map.Entry<String, String[]> entry : parameters.entrySet()) {
if (entry.getKey().startsWith("question")) {
String[] values = entry.getValue();
// etc.
Note that you can't do:
for (Map.Entry<String, String[]> entry :
request.getParameterMap().entrySet()) { // WRONG!
for reasons explained here.
add popper**.js** as dependency instead of popper (only): see the difference in bold.
yarn add popper.js , instead of yarn add popper
it makes the difference.
and include the script according your needs:
as html or the library access as a dependency in SPA applications like react or angular
This can be done by using SUMPRODUCT
as well. Update the ranges as you see fit
=SUMPRODUCT(($A$2:$A$7=A2)*($B$2:$B$7=B2)*$C$2:$C$7)
A2:A7 = First name range
B2:B7 = Last Name Range
C2:C7 = Numbers Range
This will find all the names with the same first and last name and sum the numbers in your numbers column
To reset a specific file as git status suggests:
git checkout <filename>
To reset a folder
git checkout <foldername>/*
Try this
([A-Z])([A-Z]+)\b
$1\L$2
Make sure case sensitivity is on (Alt + C)
The problem is not that you can't forward-declare a template class. Yes, you do need to know all of the template parameters and their defaults to be able to forward-declare it correctly:
namespace std {
template<class T, class Allocator = std::allocator<T>>
class list;
}
But to make even such a forward declaration in namespace std
is explicitly prohibited by the standard: the only thing you're allowed to put in std
is a template specialisation, commonly std::less
on a user-defined type. Someone else can cite the relevant text if necessary.
Just #include <list>
and don't worry about it.
Oh, incidentally, any name containing double-underscores is reserved for use by the implementation, so you should use something like TEST_H
instead of __TEST__
. It's not going to generate a warning or an error, but if your program has a clash with an implementation-defined identifier, then it's not guaranteed to compile or run correctly: it's ill-formed. Also prohibited are names beginning with an underscore followed by a capital letter, among others. In general, don't start things with underscores unless you know what magic you're dealing with.
@Sukrit Kalra
No.1: list()
, [:]
, copy.copy()
are all shallow copy. If an object is compound, they are all not suitable. You need to use copy.deepcopy()
.
No.2: b = a
directly, a
and b
have the same reference, changing a
is even as changing b
.
$ python
Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> a = [[1, 2, 3], [4, 5, 6]]
>>> b = list(a)
>>> a
[[1, 2, 3], [4, 5, 6]]
>>> b
[[1, 2, 3], [4, 5, 6]]
>>> a[0] = 1
>>> a
[1, [4, 5, 6]]
>>> b
[[1, 2, 3], [4, 5, 6]]
>>> exit()
$ python
Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> a = [[1, 2, 3], [4, 5, 6]]
>>> b = a
>>> a
[[1, 2, 3], [4, 5, 6]]
>>> b
[[1, 2, 3], [4, 5, 6]]
>>> a[0] = 1
>>> a
[1, [4, 5, 6]]
>>> b
[1, [4, 5, 6]]
>>> exit()
For 64 bit OS, its here (If .Net 4.5) : C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE
You can have a Windows 10 configuration with and without Hyper-V as follows in an Admin prompt:
bcdedit /copy {current} /d "Windows 10 no Hyper-V"
find the new id of the just created "Windows 10 no Hyper-V" bootentry, eg. {094a0b01-3350-11e7-99e1-bc5ec82bc470}
bcdedit /set {094a0b01-3350-11e7-99e1-bc5ec82bc470} hypervisorlaunchtype Off
After rebooting you can choose between Windows 10 with and without Hyper-V at startup
It's probably easiest to use xargs
. In your case:
ls -1 | xargs -L1 echo
The -L
flag ensures the input is read properly. From the man page of xargs
:
-L number
Call utility for every number non-empty lines read.
A line ending with a space continues to the next non-empty line. [...]
You can also use REPLACE()
:
UPDATE Table
SET Column = REPLACE(Column, 'Test123', 'Test')
You can do it with initializer list:
std::vector<unsigned int> array;
// First argument is an iterator to the element BEFORE which you will insert:
// In this case, you will insert before the end() iterator, which means appending value
// at the end of the vector.
array.insert(array.end(), { 1, 2, 3, 4, 5, 6 });
You need to create an XmlReaderSettings instance and pass that to your XmlReader when you create it. Then you can subscribe to the ValidationEventHandler
in the settings to receive validation errors. Your code will end up looking like this:
using System.Xml;
using System.Xml.Schema;
using System.IO;
public class ValidXSD
{
public static void Main()
{
// Set the validation settings.
XmlReaderSettings settings = new XmlReaderSettings();
settings.ValidationType = ValidationType.Schema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
// Create the XmlReader object.
XmlReader reader = XmlReader.Create("inlineSchema.xml", settings);
// Parse the file.
while (reader.Read()) ;
}
// Display any warnings or errors.
private static void ValidationCallBack(object sender, ValidationEventArgs args)
{
if (args.Severity == XmlSeverityType.Warning)
Console.WriteLine("\tWarning: Matching schema not found. No validation occurred." + args.Message);
else
Console.WriteLine("\tValidation error: " + args.Message);
}
}
pip has a --no-dependencies
switch. You should use that.
For more information, run pip install -h
, where you'll see this line:
--no-deps, --no-dependencies
Ignore package dependencies
We can use TRUNC function in Oracle DB. Here is an example.
SELECT TRUNC(TO_DATE('01 Jan 2018 08:00:00','DD-MON-YYYY HH24:MI:SS')) FROM DUAL
Output: 1/1/2018
function convertToReadableSize($size)
{
$base = log($size) / log(1024);
$suffix = array("B", "KB", "MB", "GB", "TB");
$f_base = floor($base);
return round(pow(1024, $base - floor($base)), 1) . $suffix[$f_base];
}
Just call the function
echo convertToReadableSize(1024); // Outputs '1KB'
echo convertToReadableSize(1024 * 1024); // Outputs '1MB'
your thinking about this program below
#include <stdio.h>
#include <string.h>
int main ()
{
char str[][5] = { "R2D2" , "C3PO" , "R2A6" };
int n;
puts ("Looking for R2 astromech droids...");
for (n=0 ; n<3 ; n++)
if (strncmp (str[n],"R2xx",2) == 0)
{
printf ("found %s\n",str[n]);
}
return 0;
}
//outputs:
//
//Looking for R2 astromech droids...
//found R2D2
//found R2A6
when you should be thinking about inputting something into an array & then use strcmp functions like the program above ... check out a modified program below
#include <iostream>
#include<cctype>
#include <string.h>
#include <string>
using namespace std;
int main()
{
int Students=2;
int Projects=3, Avg2=0, Sum2=0, SumT2=0, AvgT2=0, i=0, j=0;
int Grades[Students][Projects];
for(int j=0; j<=Projects-1; j++){
for(int i=0; i<=Students; i++) {
cout <<"Please give grade of student "<< j <<"in project "<< i << ":";
cin >> Grades[j][i];
}
Sum2 = Sum2 + Grades[i][j];
Avg2 = Sum2/Students;
}
SumT2 = SumT2 + Avg2;
AvgT2 = SumT2/Projects;
cout << "avg is : " << AvgT2 << " and sum : " << SumT2 << ":";
return 0;
}
change to string except it only reads 1 input and throws the rest out maybe need two for loops and two pointers
#include <cstring>
#include <iostream>
#include <string>
#include <stdio.h>
using namespace std;
int main()
{
char name[100];
//string userInput[26];
int i=0, n=0, m=0;
cout<<"your name? ";
cin>>name;
cout<<"Hello "<<name<< endl;
char *ptr=name;
for (i = 0; i < 20; i++)
{
cout<<i<<" "<<ptr[i]<<" "<<(int)ptr[i]<<endl;
}
int length = 0;
while(name[length] != '\0')
{
length++;
}
for(n=0; n<4; n++)
{
if (strncmp(ptr, "snit", 4) == 0)
{
cout << "you found the snitch " << ptr[i];
}
}
cout<<name <<"is"<<length<<"chars long";
}
Bootstrap has 3 lines of CSS, within your bootstrap.css generated file that control the placeholder text color:
.form-control::-moz-placeholder {
color: #999999;
opacity: 1;
}
.form-control:-ms-input-placeholder {
color: #999999;
}
.form-control::-webkit-input-placeholder {
color: #999999;
}
Now if you add this to your own CSS file it won't override bootstrap's because it is less specific. So assmuning your form inside a then add that to your CSS:
form .form-control::-moz-placeholder {
color: #fff;
opacity: 1;
}
form .form-control:-ms-input-placeholder {
color: #fff;
}
form .form-control::-webkit-input-placeholder {
color: #fff;
}
Voila that will override bootstrap's CSS.
Yes. First, construct a File
representing the image path:
File file = new File(a);
If you're starting from a relative path:
file = new File(file.getAbsolutePath());
Then, get the parent:
String dir = file.getParent();
Or, if you want the directory as a File
object,
File dirAsFile = file.getParentFile();
Here's a less involved trick to deal with media queries. Cross browser support is a bit limiting as it doesn't support mobile IE.
if (window.matchMedia('(max-width: 694px)').matches)
{
//do desired changes
}
See Mozilla documentation for more details.
You just need another layer in your php array:
$post_data = array(
'item' => array(
'item_type_id' => $item_type,
'string_key' => $string_key,
'string_value' => $string_value,
'string_extra' => $string_extra,
'is_public' => $public,
'is_public_for_contacts' => $public_contacts
)
);
echo json_encode($post_data);
This issue can be caused by IE using compatibility mode on intranet sites. There are two ways to resolve this, you can either update IE to not use compatibility mode on your local machine (in IE11: Tools-> Compatibility View Settings -> Uncheck Display intranet sites in Compatibility View)
Better yet you can update the meta tags in your webpage. Add in:
...
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
</head>
...
What does this mean? It is telling IE to use the latest compatibility mode. More information is available in MSDN: Specifying legacy document modes
The CSS Lists and Counters Module Level 3 introduces the ::marker
pseudo-element. From what I've understood it would allow such a thing. Unfortunately, no browser seems to support it.
What you can do is add some padding to the parent ul
and pull the icon into that padding:
ul {_x000D_
list-style: none;_x000D_
padding: 0;_x000D_
}_x000D_
li {_x000D_
padding-left: 1.3em;_x000D_
}_x000D_
li:before {_x000D_
content: "\f00c"; /* FontAwesome Unicode */_x000D_
font-family: FontAwesome;_x000D_
display: inline-block;_x000D_
margin-left: -1.3em; /* same as padding-left set on li */_x000D_
width: 1.3em; /* same as padding-left set on li */_x000D_
}
_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">_x000D_
<ul>_x000D_
<li>Item one</li>_x000D_
<li>Item two</li>_x000D_
</ul>
_x000D_
Adjust the padding/font-size/etc to your liking, and that's it. Here's the usual fiddle: http://jsfiddle.net/joplomacedo/a8GxZ/
=====
This works with any type of iconic font. FontAwesome, however, provides their own way to deal with this 'problem'. Check out Darrrrrren's answer below for more details.
For me mysql wasn't running so I fixed it with
sudo /etc/init.d/mysql start
Something that I didn't see mentioned in the other answers here is how you deal with unwinding when you don't know where the initial segue originated, which to me is an even more important use case. For example, say you have a help view controller (H) that you display modally from two different view controllers (A and B):
A ? H
B ? H
How do you set up the unwind segue so that you go back to the correct view controller? The answer is that you declare an unwind action in A and B with the same name, e.g.:
// put in AViewController.swift and BViewController.swift
@IBAction func unwindFromHelp(sender: UIStoryboardSegue) {
// empty
}
This way, the unwind will find whichever view controller (A or B) initiated the segue and go back to it.
In other words, think of the unwind action as describing where the segue is coming from, rather than where it is going to.
It is little tricky when you try to combine optional parameter and default value for that parameter. Like this,
func test(param: Int? = nil)
These two are completely opposite ideas. When you have an optional type parameter but you also provide default value to it, it is no more an optional type now since it has a default value. Even if the default is nil, swift simply removes the optional binding without checking what the default value is.
So it is always better not to use nil as default value.
Simply by iterating over the list:
struct node *n = head;
while(n){
struct node *n1 = n;
n = n->next;
free(n1);
}
Unfortunately historical ticker data that is free is hard to come by. Now that opentick is dead, I dont know of any other provider.
In a previous lifetime I worked for a hedgefund that had an automated trading system, and we used historical data profusely.
We used TickData for our source. Their prices were reasonable, and the data had sub second resolution.
Something like this should work: /([^/]*)$
What language are you using? End-of-string regex signifiers can vary in different languages.
Do not use $scope.$apply()
angular already uses it and it can result in this error
$rootScope:inprog Action Already In Progress
if you use twice, use $timeout
or interval
Javascript always passes by value. However, if you pass an object to a function, the "value" is really a reference to that object, so the function can modify that object's properties but not cause the variable outside the function to point to some other object.
An example:
function changeParam(x, y, z) {
x = 3;
y = "new string";
z["key2"] = "new";
z["key3"] = "newer";
z = {"new" : "object"};
}
var a = 1,
b = "something",
c = {"key1" : "whatever", "key2" : "original value"};
changeParam(a, b, c);
// at this point a is still 1
// b is still "something"
// c still points to the same object but its properties have been updated
// so it is now {"key1" : "whatever", "key2" : "new", "key3" : "newer"}
// c definitely doesn't point to the new object created as the last line
// of the function with z = ...
<?php
$args = array(
'post_type' => 'product',
'posts_per_page' => 10,
'product_cat' => 'hoodies'
);
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();
global $product;
echo '<br /><a href="'.get_permalink().'">' . woocommerce_get_product_thumbnail().' '.get_the_title().'</a>';
endwhile;
wp_reset_query();
?>
This will list all product thumbnails and names along with their links to product page. change the category name and posts_per_page as per your requirement.
... and Trick #3 Multiline entries in an Xtable
Generate some more data
moredata<-data.frame(Nominal=c(1:5), n=rep(5,5),
MeanLinBias=signif(rnorm(5, mean=0, sd=10), digits=4),
LinCI=paste("(",signif(rnorm(5,mean=-2, sd=5), digits=4),
", ", signif(rnorm(5, mean=2, sd=5), digits=4),")",sep=""),
MeanQuadBias=signif(rnorm(5, mean=0, sd=10), digits=4),
QuadCI=paste("(",signif(rnorm(5,mean=-2, sd=5), digits=4),
", ", signif(rnorm(5, mean=2, sd=5), digits=4),")",sep=""))
names(moredata)<-c("Nominal", "n","Linear Model \nBias","Linear \nCI", "Quadratic Model \nBias", "Quadratic \nCI")
Now produce our xtable, using the sanitize function to replace column names with the correct Latex newline commands (including double backslashes so R is happy)
<<label=multilinetable, results=tex, echo=FALSE>>=
foo<-xtable(moredata)
align(foo) <- c( rep('c',3),'p{1.8in}','p{2in}','p{1.8in}','p{2in}' )
print(foo,
floating=FALSE,
include.rownames=FALSE,
sanitize.text.function = function(str) {
str<-gsub("\n","\\\\", str, fixed=TRUE)
return(str)
},
sanitize.colnames.function = function(str) {
str<-c("Nominal", "n","\\centering Linear Model\\\\ \\% Bias","\\centering Linear \\\\ 95\\%CI", "\\centering Quadratic Model\\\\ \\%Bias", "\\centering Quadratic \\\\ 95\\%CI \\tabularnewline")
return(str)
})
@
(although this isn't perfect, as we need \tabularnewline so the table is formatted correctly, and Xtable still puts in a final \, so we end up with a blank line below the table header.)
As a general rule, converting a Web Forms or MVC5 application to ASP.NET Core will require a significant amount of refactoring.
HttpContext.Current
was removed in ASP.NET Core. Accessing the current HTTP context from a separate class library is the type of messy architecture that ASP.NET Core tries to avoid. There are a few ways to re-architect this in ASP.NET Core.
You can access the current HTTP context via the HttpContext
property on any controller. The closest thing to your original code sample would be to pass HttpContext
into the method you are calling:
public class HomeController : Controller
{
public IActionResult Index()
{
MyMethod(HttpContext);
// Other code
}
}
public void MyMethod(Microsoft.AspNetCore.Http.HttpContext context)
{
var host = $"{context.Request.Scheme}://{context.Request.Host}";
// Other code
}
If you're writing custom middleware for the ASP.NET Core pipeline, the current request's HttpContext
is passed into your Invoke
method automatically:
public Task Invoke(HttpContext context)
{
// Do something with the current HTTP context...
}
Finally, you can use the IHttpContextAccessor
helper service to get the HTTP context in any class that is managed by the ASP.NET Core dependency injection system. This is useful when you have a common service that is used by your controllers.
Request this interface in your constructor:
public MyMiddleware(IHttpContextAccessor httpContextAccessor)
{
_httpContextAccessor = httpContextAccessor;
}
You can then access the current HTTP context in a safe way:
var context = _httpContextAccessor.HttpContext;
// Do something with the current HTTP context...
IHttpContextAccessor
isn't always added to the service container by default, so register it in ConfigureServices
just to be safe:
public void ConfigureServices(IServiceCollection services)
{
services.AddHttpContextAccessor();
// if < .NET Core 2.2 use this
//services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
// Other code...
}
Or you can do this way :
((TextView)findViewById(R.id.this_is_the_id_of_textview)).setText("Test");
This function will reorder your columns without losing data. Any omitted columns remain in the center of the data set:
def reorder_columns(columns, first_cols=[], last_cols=[], drop_cols=[]):
columns = list(set(columns) - set(first_cols))
columns = list(set(columns) - set(drop_cols))
columns = list(set(columns) - set(last_cols))
new_order = first_cols + columns + last_cols
return new_order
Example usage:
my_list = ['first', 'second', 'third', 'fourth', 'fifth', 'sixth']
reorder_columns(my_list, first_cols=['fourth', 'third'], last_cols=['second'], drop_cols=['fifth'])
# Output:
['fourth', 'third', 'first', 'sixth', 'second']
To assign to your dataframe, use:
my_list = df.columns.tolist()
reordered_cols = reorder_columns(my_list, first_cols=['fourth', 'third'], last_cols=['second'], drop_cols=['fifth'])
df = df[reordered_cols]
ECMAScript 6 UPDATE
This uses a new feature of JavaScript called Promises
functionOne().then(functionTwo);
You would think that simply authenticating a user in Active Directory would be a pretty simple process using LDAP in PHP without the need for a library. But there are a lot of things that can complicate it pretty fast:
It's actually easier in most cases to use a LDAP library supporting the above. I ultimately ended up rolling my own library which handles all the above points: LdapTools (Well, not just for authentication, it can do much more). It can be used like the following:
use LdapTools\Configuration;
use LdapTools\DomainConfiguration;
use LdapTools\LdapManager;
$domain = (new DomainConfiguration('example.com'))
->setUsername('username') # A separate AD service account used by your app
->setPassword('password')
->setServers(['dc1', 'dc2', 'dc3'])
->setUseTls(true);
$config = new Configuration($domain);
$ldap = new LdapManager($config);
if (!$ldap->authenticate($username, $password, $message)) {
echo "Error: $message";
} else {
// Do something...
}
The authenticate call above will:
There are other libraries to do this too (Such as Adldap2). However, I felt compelled enough to provide some additional information as the most up-voted answer is actually a security risk to rely on with no input validation done and not using TLS.
Are'nt you creating the pdf file but not actually writing the byte array back? Therefore you cannot open the PDF.
out = new FileOutputStream("D:/ABC_XYZ/1.pdf");
out.Write(b, 0, b.Length);
out.Position = 0;
out.Close();
This is in addition to correctly reading in the PDF to byte array.
Like Mertcan said, the best way to use scss is to create the project with that option:
ng new My_New_Project --style=scss
Angular-cli also adds an option to change the default css preprocessor after the project has been created by using the command:
ng set defaults.styleExt scss
For more info you can look here for their documentation:
Try adding a control variable:
public void Method()
{
bool doSomethingElse = true;
if(something)
{
//some code
if(!something2)
{
doSomethingElse = false;
}
}
if(doSomethingElse)
{
// The code i want to go if the second if is true
}
}
It was probably discussed, but as of CSS3 there is nothing like what you need (see also "Is there a CSS selector for elements containing certain text?"). You will have to use additional markup, like this:
<li><span class="foo">some text</span></li>
<li>some other text</li>
Then refer to it the usual way:
li > span.foo {...}
import re
s = "many fancy word \nhello \thi"
re.split('\s+', s)
When running Wget with -r
or -p
, but without -N
, -nd
, or -nc
, re-downloading a file will result in the new copy simply overwriting the old.
So adding -nc
will prevent this behavior, instead causing the original version to be preserved and any newer copies on the server to be ignored.
I also got confused in radio, checkbox implementation. What we need is, listen change event of the radio, and then set the state. I have made small example of gender selection.
/*_x000D_
* A simple React component_x000D_
*/_x000D_
class App extends React.Component {_x000D_
constructor(params) {_x000D_
super(params) _x000D_
// initial gender state set from props_x000D_
this.state = {_x000D_
gender: this.props.gender_x000D_
}_x000D_
this.setGender = this.setGender.bind(this)_x000D_
}_x000D_
_x000D_
setGender(e) {_x000D_
this.setState({_x000D_
gender: e.target.value_x000D_
})_x000D_
}_x000D_
_x000D_
render() {_x000D_
const {gender} = this.state_x000D_
return <div>_x000D_
Gender:_x000D_
<div>_x000D_
<input type="radio" checked={gender == "male"} _x000D_
onClick={this.setGender} value="male" /> Male_x000D_
<input type="radio" checked={gender == "female"} _x000D_
onClick={this.setGender} value="female" /> Female_x000D_
</div>_x000D_
{ "Select Gender: " } {gender}_x000D_
</div>;_x000D_
}_x000D_
}_x000D_
_x000D_
/*_x000D_
* Render the above component into the div#app_x000D_
*/_x000D_
ReactDOM.render(<App gender="male" />, document.getElementById('app'));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>_x000D_
<div id="app"></div>
_x000D_
The problem is that you have not included bootstrap.min.css
. Also, the sequence of imports could be causing issue. Please try rearranging your resources as following:
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.37/css/bootstrap-datetimepicker.min.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.6/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.37/js/bootstrap-datetimepicker.min.js"></script>
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import java.util.Base64;
import java.util.Base64.Encoder;
/**
*
* @author shivshankar pal
*
* this code is working properly. doing proper encription and decription
note:- it will work only with jdk8
*
*
*/
public class TDes {
private static byte[] key = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02 };
private static byte[] keyiv = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00 };
public static String encode(String args) {
System.out.println("plain data==> " + args);
byte[] encoding;
try {
encoding = Base64.getEncoder().encode(args.getBytes("UTF-8"));
System.out.println("Base64.encodeBase64==>" + new String(encoding));
byte[] str5 = des3EncodeCBC(key, keyiv, encoding);
System.out.println("des3EncodeCBC==> " + new String(str5));
byte[] encoding1 = Base64.getEncoder().encode(str5);
System.out.println("Base64.encodeBase64==> " + new String(encoding1));
return new String(encoding1);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static String decode(String args) {
try {
System.out.println("encrypted data==>" + new String(args.getBytes("UTF-8")));
byte[] decode = Base64.getDecoder().decode(args.getBytes("UTF-8"));
System.out.println("Base64.decodeBase64(main encription)==>" + new String(decode));
byte[] str6 = des3DecodeCBC(key, keyiv, decode);
System.out.println("des3DecodeCBC==>" + new String(str6));
String data=new String(str6);
byte[] decode1 = Base64.getDecoder().decode(data.trim().getBytes("UTF-8"));
System.out.println("plaintext==> " + new String(decode1));
return new String(decode1);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "u mistaken in try block";
}
private static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) {
try {
Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("desede/ CBC/PKCS5Padding");
IvParameterSpec ips = new IvParameterSpec(keyiv);
cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
byte[] bout = cipher.doFinal(data);
return bout;
} catch (Exception e) {
System.out.println("methods qualified name" + e);
}
return null;
}
private static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) {
try {
Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("desede/ CBC/NoPadding");//PKCS5Padding NoPadding
IvParameterSpec ips = new IvParameterSpec(keyiv);
cipher.init(Cipher.DECRYPT_MODE, deskey, ips);
byte[] bout = cipher.doFinal(data);
return bout;
} catch (Exception e) {
System.out.println("methods qualified name" + e);
}
return null;
}
}
I will give you a simple solution for this one. In my case I don't have access to a server. In that case you can change the security policy in your Google Chrome browser to allow Access-Control-Allow-Origin. This is very simple:
Simple paste in "C:\Program Files\Google\Chrome\Application\chrome.exe" --allow-file-access-from-files --disable-web-security
.
The location may differ. Now open Chrome by clicking on that shortcut.
In your UITableViewCell subclass, override layoutSubviews and hide the _UITableViewCellSeparatorView. Works under iOS 10.
override func layoutSubviews() {
super.layoutSubviews()
subviews.forEach { (view) in
if view.dynamicType.description() == "_UITableViewCellSeparatorView" {
view.hidden = true
}
}
}
As described in this link http://droidista.blogspot.in/2012/04/adding-float-value-to-your-resources.html
Declare in dimen.xml
<item name="my_float_value" type="dimen" format="float">9.52</item>
Referencing from xml
@dimen/my_float_value
Referencing from java
TypedValue typedValue = new TypedValue();
getResources().getValue(R.dimen.my_float_value, typedValue, true);
float myFloatValue = typedValue.getFloat();
well the only thing that will work is
python -m pip install pip==
you can and should run it under IDE terminal (mine was pycharm)
* Uses proxy env variable http_proxy == 'https://proxy.in.tum.de:8080' ^^^^^
The https://
is wrong, it should be http://
. The proxy itself should be accessed by HTTP and not HTTPS even though the target URL is HTTPS. The proxy will nevertheless properly handle HTTPS connection and keep the end-to-end encryption. See HTTP CONNECT method for details how this is done.
go to package control by pressing Ctrl + Shift + p
type "remove package"
and type your package/plugin to uninstall and remove it
You may want to look at potrace.
(Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion" -Name BuildLabEx).BuildLabEx
Add an input id to the element and do something like that:
document.getElementById('inputId').value.split(/[\\$]/).pop()
$("div[id^=" + controlid + "]")
will return all the controls with the same name but you need to ensure that the text should not present in any of the controls
Modifying Ben's query little bit,
select count(distinct switch_id)
from [email protected]
where dealer_name = 'XXXX'
and creation_date between add_months(trunc(sysdate,'mm'),-1) and last_day(add_months(trunc(sysdate,'mm'),-1))
In powershell you can to use severals commands, for looking for this commands digit: Get-Alias
;
So the cammands the can to use are:
write-host (ls MydirectoryName).Count
or
write-host (dir MydirectoryName).Count
or
write-host (Get-ChildrenItem MydirectoryName).Count
In the POSIX standard, which /bin/sh
is supposed to respect, the command is .
(a single dot), not source
. The source
command is a csh
-ism that has been pulled into bash
.
Try
. $env_name/bin/activate
Or if you must have non-POSIX bash
-isms in your code, use #!/bin/bash
.
Answer to 1: ArrayList uses an array under the hood. Accessing a member of an ArrayList object is as simple as accessing the array at the provided index, assuming the index is within the bounds of the backing array. A LinkedList has to iterate through its members to get to the nth element. That's O(n) for a LinkedList, versus O(1) for ArrayList.
0 values of basic types (1)(2)map to false
.
Other values map to true
.
This convention was established in original C, via its flow control statements; C didn't have a boolean type at the time.
It's a common error to assume that as function return values, false
indicates failure. But in particular from main
it's false
that indicates success. I've seen this done wrong many times, including in the Windows starter code for the D language (when you have folks like Walter Bright and Andrei Alexandrescu getting it wrong, then it's just dang easy to get wrong), hence this heads-up beware beware.
There's no need to cast to bool
for built-in types because that conversion is implicit. However, Visual C++ (Microsoft's C++ compiler) has a tendency to issue a performance warning (!) for this, a pure silly-warning. A cast doesn't suffice to shut it up, but a conversion via double negation, i.e. return !!x
, works nicely. One can read !!
as a “convert to bool
” operator, much as -->
can be read as “goes to”. For those who are deeply into readability of operator notation. ;-)
1) C++14 §4.12/1 “A zero value, null pointer value, or null member pointer value is converted to false
; any other value is converted to true
. For direct-initialization (8.5), a prvalue of type std::nullptr_t
can be converted to a prvalue of type bool
; the resulting value is false
.”
2) C99 and C11 §6.3.1.2/1 “When any scalar value is converted to _Bool
, the result is 0 if the value compares equal to 0; otherwise, the result is 1.”
BorderLayout(int Gap, int Gap)
or GridLayout(int Gap, int Gap, int Gap, int Gap)
why paint Border() inside paintComponent( ...)
Border line, raisedbevel, loweredbevel, title, empty;
line = BorderFactory.createLineBorder(Color.black);
raisedbevel = BorderFactory.createRaisedBevelBorder();
loweredbevel = BorderFactory.createLoweredBevelBorder();
title = BorderFactory.createTitledBorder("");
empty = BorderFactory.createEmptyBorder(4, 4, 4, 4);
Border compound = BorderFactory.createCompoundBorder(empty, xxx);
Color crl = (Color.blue);
Border compound1 = BorderFactory.createCompoundBorder(empty, xxx);
As of Retrofit 2.0.0-beta2, if you have a service responding JSON from this URL : http://myhost/mypath
The following is not working :
public interface ClientService {
@GET("")
Call<List<Client>> getClientList();
}
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://myhost/mypath")
.addConverterFactory(GsonConverterFactory.create())
.build();
ClientService service = retrofit.create(ClientService.class);
Response<List<Client>> response = service.getClientList().execute();
But this is ok :
public interface ClientService {
@GET
Call<List<Client>> getClientList(@Url String anEmptyString);
}
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://myhost/mypath")
.addConverterFactory(GsonConverterFactory.create())
.build();
ClientService service = retrofit.create(ClientService.class);
Response<List<Client>> response = service.getClientList("").execute();
please set dataType config property in your ajax call and give it another try!
another point is you are using ajax call setup configuration properties as string and it is wrong as reference site
$.ajax({
url : 'http://voicebunny.comeze.com/index.php',
type : 'GET',
data : {
'numberOfWords' : 10
},
dataType:'json',
success : function(data) {
alert('Data: '+data);
},
error : function(request,error)
{
alert("Request: "+JSON.stringify(request));
}
});
I hope be helpful!
Try configuration at /config/application.rb:
config.middleware.insert_before 0, "Rack::Cors" do
allow do
origins '*'
resource '*', :headers => :any, :methods => [:get, :post, :options, :delete, :put, :patch], credentials: true
end
end
Try this:
filed like "*AA*" and filed not like "*BB*"
Blocking: control returns to invoking precess after processing of primitive(sync or async) completes
Non blocking: control returns to process immediately after invocation
I know the question specified dplyr
. But, since others already posted solutions using other packages, I decided to have a go using other packages too:
Base package:
df <- df[with(df, order(id, stopSequence, stopId)), ]
merge(df[!duplicated(df$id), ],
df[!duplicated(df$id, fromLast = TRUE), ],
all = TRUE)
data.table:
df <- setDT(df)
df[order(id, stopSequence)][, .SD[c(1,.N)], by=id]
sqldf:
library(sqldf)
min <- sqldf("SELECT id, stopId, min(stopSequence) AS StopSequence
FROM df GROUP BY id
ORDER BY id, StopSequence, stopId")
max <- sqldf("SELECT id, stopId, max(stopSequence) AS StopSequence
FROM df GROUP BY id
ORDER BY id, StopSequence, stopId")
sqldf("SELECT * FROM min
UNION
SELECT * FROM max")
In one query:
sqldf("SELECT *
FROM (SELECT id, stopId, min(stopSequence) AS StopSequence
FROM df GROUP BY id
ORDER BY id, StopSequence, stopId)
UNION
SELECT *
FROM (SELECT id, stopId, max(stopSequence) AS StopSequence
FROM df GROUP BY id
ORDER BY id, StopSequence, stopId)")
Output:
id stopId StopSequence
1 1 a 1
2 1 c 3
3 2 b 1
4 2 c 4
5 3 a 3
6 3 b 1
const getChunksFromString = (str, chunkSize) => {
var regexChunk = new RegExp(`.{1,${chunkSize}}`, 'g') // '.' represents any character
return str.match(regexChunk)
}
Call it as needed
console.log(getChunksFromString("Hello world", 3)) // ["Hel", "lo ", "wor", "ld"]
Use the with statement.
{% with total=business.employees.count %}
{{ total }} employee{{ total|pluralize }}
{% endwith %}
I can't imply the code in first paragraph in this answer. Maybe the template language had deprecated the old format.
Generating strings from (for example) lowercase characters:
import random, string
def randomword(length):
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(length))
Results:
>>> randomword(10)
'vxnxikmhdc'
>>> randomword(10)
'ytqhdohksy'
In case anyone finds this question and you want to open up settings for your specific application:
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
intent.data = Uri.parse("package:" + context.packageName)
startActivity(intent)
Note : Use it if calculating / adding days from current date.
Be aware: this answer has issues (see comments)
var myDate = new Date();
myDate.setDate(myDate.getDate() + AddDaysHere);
It should be like
var newDate = new Date(date.setTime( date.getTime() + days * 86400000 ));
First, get the intent which has started your activity using the getIntent()
method:
Intent intent = getIntent();
If your extra data is represented as strings, then you can use intent.getStringExtra(String name)
method. In your case:
String id = intent.getStringExtra("id");
String name = intent.getStringExtra("name");
See gjvdkamp
's answer below; this feature now exists in C#
var @switch = new Dictionary<Type, Action> {
{ typeof(Type1), () => ... },
{ typeof(Type2), () => ... },
{ typeof(Type3), () => ... },
};
@switch[typeof(MyType)]();
It's a little less flexible as you can't fall through cases, continue etc. But I rarely do so anyway.
don't forget this to add this below in your template:
<router-outlet></router-outlet>
I made a new checkout from the same project to a different location then copied the .svn folder from it and replaced with my old .svn folder. After that called the svn update function and everything were synced properly up to date.
My turn:
https://play.golang.org/p/RifHKsX7Puh
package main
import (
"fmt"
"time"
)
func main() {
var n int = 77
v := time.Duration( 1.15 * float64(n) ) * time.Second
fmt.Printf("%v %T", v, v)
}
It helps to remember the simple fact, that underlyingly the time.Duration is a mere int64, which holds nanoseconds value.
This way, conversion to/from time.Duration becomes a formality. Just remember:
the case above is for a new project. I hit upon this error while editing a fork of a well established library.
the typedef was included in the file I was editing but the struct wasn't.
The end result being that I was attempting to edit the struct in the wrong place.
If you run into this in a similar way look for other places where the struct is edited and try it there.
In my case this was because I used
Implicit Operator
between BLL
and DAL
classes.when I want to use BLL
Layer In Application Layer I got this error.
I changed
implicit operator
to
explicit operator
it be OK. Thanks
After Docker Installation on Centos. While running below command I got below error.
[centos@aiops-dev-cassandra3 ~]$ docker run hello-world
docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.soc k/v1.40/containers/create: dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.
Change Group and Permission for docker.socket
[centos@aiops-dev-cassandra3 ~]$ ls -l /lib/systemd/system/docker.socket
-rw-r--r--. 1 root root 197 Nov 13 07:25 /lib/systemd/system/docker.socket
[centos@aiops-dev-cassandra3 ~]$ sudo chgrp docker /lib/systemd/system/docker.socket
[centos@aiops-dev-cassandra3 ~]$ sudo chmod 666 /var/run/docker.sock
[centos@aiops-dev-cassandra3 ~]$ ls -lrth /var/run/docker.sock
srw-rw-rw-. 1 root docker 0 Nov 20 11:59 /var/run/docker.sock
[centos@aiops-dev-cassandra3 ~]$
Verify by using below docker command
[centos@aiops-dev-cassandra3 ~]$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
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[centos@aiops-dev-cassandra3 ~]$
I had such problem. Solution was simple :
P.S. Sorry, for bad grammar.
If you look at the function (by typing it's name at the console) you will see that it is just a simple functionalized version of the [<-
function which is described at ?"["
. [
is a rather basic function to R so you would be well-advised to look at that page for further details. Especially important is learning that the index argument (the second argument in replace
can be logical, numeric or character classed values. Recycling will occur when there are differing lengths of the second and third arguments:
You should "read" the function call as" "within the first argument, use the second argument as an index for placing the values of the third argument into the first":
> replace( 1:20, 10:15, 1:2)
[1] 1 2 3 4 5 6 7 8 9 1 2 1 2 1 2 16 17 18 19 20
Character indexing for a named vector:
> replace(c(a=1, b=2, c=3, d=4), "b", 10)
a b c d
1 10 3 4
Logical indexing:
> replace(x <- c(a=1, b=2, c=3, d=4), x>2, 10)
a b c d
1 2 10 10
If you want to insert multiple elements into an array at once check out this Stack Overflow answer: A better way to splice an array into an array in javascript
Also here are some functions to illustrate both examples:
function insertAt(array, index) {
var arrayToInsert = Array.prototype.splice.apply(arguments, [2]);
return insertArrayAt(array, index, arrayToInsert);
}
function insertArrayAt(array, index, arrayToInsert) {
Array.prototype.splice.apply(array, [index, 0].concat(arrayToInsert));
return array;
}
Finally here is a jsFiddle so you can see it for youself: http://jsfiddle.net/luisperezphd/Wc8aS/
And this is how you use the functions:
// if you want to insert specific values whether constants or variables:
insertAt(arr, 1, "x", "y", "z");
// OR if you have an array:
var arrToInsert = ["x", "y", "z"];
insertArrayAt(arr, 1, arrToInsert);
In WPF, TextBox element will not get opportunity to use "Enter" button for creating KeyUp Event until you will not set property: AcceptsReturn="True".
But, it would`t solve the problem with handling KeyUp Event in TextBox element. After pressing "ENTER" you will get a new text line in TextBox.
I had solved problem of using KeyUp Event of TextBox element by using Bubble event strategy. It's short and easy. You have to attach a KeyUp Event handler in some (any) parent element:
XAML:
<Window x:Class="TextBox_EnterButtomEvent.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:TextBox_EnterButtomEvent"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid KeyUp="Grid_KeyUp">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height ="0.3*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="1" Grid.Column="1" Padding="0" TextWrapping="WrapWithOverflow">
Input text end press ENTER:
</TextBlock>
<TextBox Grid.Row="2" Grid.Column="1" HorizontalAlignment="Stretch"/>
<TextBlock Grid.Row="4" Grid.Column="1" Padding="0" TextWrapping="WrapWithOverflow">
You have entered:
</TextBlock>
<TextBlock Name="txtBlock" Grid.Row="5" Grid.Column="1" HorizontalAlignment="Stretch"/>
</Grid></Window>
C# logical part (KeyUp Event handler is attached to a grid element):
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Grid_KeyUp(object sender, KeyEventArgs e)
{
if(e.Key == Key.Enter)
{
TextBox txtBox = e.Source as TextBox;
if(txtBox != null)
{
this.txtBlock.Text = txtBox.Text;
this.txtBlock.Background = new SolidColorBrush(Colors.LightGray);
}
}
}
}
Result:
I stumbled over this thread searching for answer to similar case. Basically all answers are found, but it's still hard to extract the essentials from them.
Assume a class Foo probably derived from some other class(es) with probably more classes derived from it.
Then accessing
this.method()
this.property
Foo.method()
Foo.property
this.constructor.method()
this.constructor.property
this.method()
this.property
Foo.method()
Foo.property
Foo.prototype.method.call( this )
Object.getOwnPropertyDescriptor( Foo.prototype,"property" ).get.call(this);
Keep in mind that using
this
isn't working this way when using arrow functions or invoking methods/getters explicitly bound to custom value.
this
is referring to current instance.super
is basically referring to same instance, but somewhat addressing methods and getters written in context of some class current one is extending (by using the prototype of Foo's prototype).this.constructor
.this
is available to refer to the definition of current class directly.super
is not referring to some instance either, but to static methods and getters written in context of some class current one is extending.Try this code:
class A {_x000D_
constructor( input ) {_x000D_
this.loose = this.constructor.getResult( input );_x000D_
this.tight = A.getResult( input );_x000D_
console.log( this.scaledProperty, Object.getOwnPropertyDescriptor( A.prototype, "scaledProperty" ).get.call( this ) );_x000D_
}_x000D_
_x000D_
get scaledProperty() {_x000D_
return parseInt( this.loose ) * 100;_x000D_
}_x000D_
_x000D_
static getResult( input ) {_x000D_
return input * this.scale;_x000D_
}_x000D_
_x000D_
static get scale() {_x000D_
return 2;_x000D_
}_x000D_
}_x000D_
_x000D_
class B extends A {_x000D_
constructor( input ) {_x000D_
super( input );_x000D_
this.tight = B.getResult( input ) + " (of B)";_x000D_
}_x000D_
_x000D_
get scaledProperty() {_x000D_
return parseInt( this.loose ) * 10000;_x000D_
}_x000D_
_x000D_
static get scale() {_x000D_
return 4;_x000D_
}_x000D_
}_x000D_
_x000D_
class C extends B {_x000D_
constructor( input ) {_x000D_
super( input );_x000D_
}_x000D_
_x000D_
static get scale() {_x000D_
return 5;_x000D_
}_x000D_
}_x000D_
_x000D_
class D extends C {_x000D_
constructor( input ) {_x000D_
super( input );_x000D_
}_x000D_
_x000D_
static getResult( input ) {_x000D_
return super.getResult( input ) + " (overridden)";_x000D_
}_x000D_
_x000D_
static get scale() {_x000D_
return 10;_x000D_
}_x000D_
}_x000D_
_x000D_
_x000D_
let instanceA = new A( 4 );_x000D_
console.log( "A.loose", instanceA.loose );_x000D_
console.log( "A.tight", instanceA.tight );_x000D_
_x000D_
let instanceB = new B( 4 );_x000D_
console.log( "B.loose", instanceB.loose );_x000D_
console.log( "B.tight", instanceB.tight );_x000D_
_x000D_
let instanceC = new C( 4 );_x000D_
console.log( "C.loose", instanceC.loose );_x000D_
console.log( "C.tight", instanceC.tight );_x000D_
_x000D_
let instanceD = new D( 4 );_x000D_
console.log( "D.loose", instanceD.loose );_x000D_
console.log( "D.tight", instanceD.tight );
_x000D_
It's not a WPF item but a standard XML one and BtBh has correctly answered it, x refers to the default namespace. In XML when you do not prefix an element/attribute with a namespace it assumes you want the default namespace.
So typing just Name
is nothing more than a short hand for x:Name
. More details on XML namespaces can be found at link text
Monolithic kernel design is much older than the microkernel idea, which appeared at the end of the 1980's.
Unix and Linux kernels are monolithic, while QNX, L4 and Hurd are microkernels. Mach was initially a microkernel (not Mac OS X), but later converted into a hybrid kernel. Minix (before version 3) wasn't a pure microkernel because device drivers were compiled as part of the kernel.
Monolithic kernels are usually faster than microkernels. The first microkernel Mach was 50% slower than most monolithic kernels, while later ones like L4 were only 2% or 4% slower than the monolithic designs.
Monolithic kernels are big in size, while microkernels are small in size - they usually fit into the processor's L1 cache (first generation microkernels).
In monolithic kernels, the device drivers reside in the kernel space while in the microkernels the device drivers are user-space.
Since monolithic kernels' device drivers reside in the kernel space, monolithic kernels are less secure than microkernels, and failures (exceptions) in the drivers may lead to crashes (displayed as BSODs in Windows). Microkernels are more secure than monolithic kernels, hence more often used in military devices.
Monolithic kernels use signals and sockets to implement inter-process communication (IPC), microkernels use message queues. 1st gen microkernels didn't implement IPC well and were slow on context switches - that's what caused their poor performance.
Adding a new feature to a monolithic system means recompiling the whole kernel or the corresponding kernel module (for modular monolithic kernels), whereas with microkernels you can add new features or patches without recompiling.
You can't access element like you did (document.frm_new_user_request
). You have to use the function getElementById
:
document.getElementById("frm_new_user_request")
So getting a value from an input could look like this:
var value = document.getElementById("frm_new_user_request").value
Also you can use some JavaScript framework, e.g. jQuery, which simplifies operations with DOM (Document Object Model) and also hides differences between various browsers from you.
Getting a value from an input using jQuery would look like this:
var value = $("#element).value
var value = $(".element).value
update json_source_tabcol as d
set isnullable = a.is_Nullable
from information_schema.columns as a
where a.table_name =d.table_name
and a.table_schema = d.table_schema
and a.column_name = d.column_name;
JavaScript is single threaded and has a synchronous execution model. Single threaded means that one command is being executed at a time. Synchronous means one at a time i.e. one line of code is being executed at time in order the code appears. So in JavaScript one thing is happening at a time.
Execution Context
The JavaScript engine interacts with other engines in the browser. In the JavaScript execution stack there is global context at the bottom and then when we invoke functions the JavaScript engine creates new execution contexts for respective functions. When the called function exits its execution context is popped from the stack, and then next execution context is popped and so on...
For example
function abc()
{
console.log('abc');
}
function xyz()
{
abc()
console.log('xyz');
}
var one = 1;
xyz();
In the above code a global execution context will be created and in this context var one
will be stored and its value will be 1... when the xyz() invocation is called then a new execution context will be created and if we had defined any variable in xyz function those variables would be stored in the execution context of xyz(). In the xyz function we invoke abc() and then the abc() execution context is created and put on the execution stack... Now when abc() finishes its context is popped from stack, then the xyz() context is popped from stack and then global context will be popped...
Now about asynchronous callbacks; asynchronous means more than one at a time.
Just like the execution stack there is the Event Queue. When we want to be notified about some event in the JavaScript engine we can listen to that event, and that event is placed on the queue. For example an Ajax request event, or HTTP request event.
Whenever the execution stack is empty, like shown in above code example, the JavaScript engine periodically looks at the event queue and sees if there is any event to be notified about. For example in the queue there were two events, an ajax request and a HTTP request. It also looks to see if there is a function which needs to be run on that event trigger... So the JavaScript engine is notified about the event and knows the respective function to execute on that event... So the JavaScript engine invokes the handler function, in the example case, e.g. AjaxHandler() will be invoked and like always when a function is invoked its execution context is placed on the execution context and now the function execution finishes and the event ajax request is also removed from the event queue... When AjaxHandler() finishes the execution stack is empty so the engine again looks at the event queue and runs the event handler function of HTTP request which was next in queue. It is important to remember that the event queue is processed only when execution stack is empty.
For example see the code below explaining the execution stack and event queue handling by Javascript engine.
function waitfunction() {
var a = 5000 + new Date().getTime();
while (new Date() < a){}
console.log('waitfunction() context will be popped after this line');
}
function clickHandler() {
console.log('click event handler...');
}
document.addEventListener('click', clickHandler);
waitfunction(); //a new context for this function is created and placed on the execution stack
console.log('global context will be popped after this line');
And
<html>
<head>
</head>
<body>
<script src="program.js"></script>
</body>
</html>
Now run the webpage and click on the page, and see the output on console. The output will be
waitfunction() context will be popped after this line
global context will be emptied after this line
click event handler...
The JavaScript engine is running the code synchronously as explained in the execution context portion, the browser is asynchronously putting things in event queue. So the functions which take a very long time to complete can interrupt event handling. Things happening in a browser like events are handled this way by JavaScript, if there is a listener supposed to run, the engine will run it when the execution stack is empty. And events are processed in the order they happen, so the asynchronous part is about what is happening outside the engine i.e. what should the engine do when those outside events happen.
So JavaScript is always synchronous.
Remove the semicolon (;), backtick (``) etc. from inside a query
Objects exposed as IQueryable<T>
and IEnumerable<T>
don't actually "execute" until they are iterated over or otherwise accessed, such as being composed into a List<T>
. When EF returns an IQueryable<T>
it is essentially just composing something capable of retrieving data, it isn't actually performing the retrieve until you consume it.
You can get a feel for this by putting a breakpoint where the IQueryable
is defined, vs. when the .ToList()
is called. (From inside the scope of the data context as Jofry has correctly pointed out.) The work to pull the data is done during the ToList()
call.
Because of that, you need to keep the IQueryable<T>
within the scope of the data context.
I can't get it to work on $.get()
because it has no complete
event.
I suggest to use $.ajax()
like this,
$.ajax({
url: 'http://www.example.org',
data: {'a':1,'b':2,'c':3},
dataType: 'xml',
complete : function(){
alert(this.url)
},
success: function(xml){
}
});
I ran into the same problem and here's how I was able to fix it
keytool -list -alias androiddebugkey -keystore <project_file\android\app\debug.keystore>
Either install the supplementary packages for python-ssl using your package manager or recompile Python using -with-ssl (requires OpenSSL headers/libs installed).
The current accepted answer doesn't work for multiple groupings.
Try this when you need to operate on categories of column row-values.
Suppose I have the following data:
+---------+-----------+
| column1 | column2 |
+---------+-----------+
| cat | Felon |
| cat | Purz |
| dog | Fido |
| dog | Beethoven |
| dog | Buddy |
| bird | Tweety |
+---------+-----------+
And I want this as my output:
+------+----------------------+
| type | names |
+------+----------------------+
| cat | Felon,Purz |
| dog | Fido,Beethoven,Buddy |
| bird | Tweety |
+------+----------------------+
(If you're following along:
create table #column_to_list (column1 varchar(30), column2 varchar(30))
insert into #column_to_list
values
('cat','Felon'),
('cat','Purz'),
('dog','Fido'),
('dog','Beethoven'),
('dog','Buddy'),
('bird','Tweety')
)
Now – I don’t want to go into all the syntax, but as you can see, this does the initial trick for us:
select ',' + cast(column2 as varchar(255)) as [text()]
from #column_to_list sub
where column1 = 'dog'
for xml path('')
--Using "as [text()]" here is specific to the “for XML” line after our where clause and we can’t give a name to our selection, hence the weird column_name
output:
+------------------------------------------+
| XML_F52E2B61-18A1-11d1-B105-00805F49916B |
+------------------------------------------+
| ,Fido,Beethoven,Buddy |
+------------------------------------------+
You can see it’s limited in that it was for just one grouping (where column1 = ‘dog’) and it left a comma in the front, and additionally it’s named weird.
So, first let's handle the leading comma using the 'stuff' function and name our column stuff_list:
select stuff([list],1,1,'') as stuff_list
from (select ',' + cast(column2 as varchar(255)) as [text()]
from #column_to_list sub
where column1 = 'dog'
for xml path('')
) sub_query([list])
--"sub_query([list])" just names our column as '[list]' so we can refer to it in the stuff function.
Output:
+----------------------+
| stuff_list |
+----------------------+
| Fido,Beethoven,Buddy |
+----------------------+
Finally let’s just mush this into a select statement, noting the reference to the top_query alias defining which column1 we want (on the 5th line here):
select top_query.column1,
(select stuff([list],1,1,'') as stuff_list
from (select ',' + cast(column2 as varchar(255)) as [text()]
from #column_to_list sub
where sub.column1 = top_query.column1
for xml path('')
) sub_query([list])
) as pet_list
from #column_to_list top_query
group by column1
order by column1
output:
+---------+----------------------+
| column1 | pet_list |
+---------+----------------------+
| bird | Tweety |
| cat | Felon,Purz |
| dog | Fido,Beethoven,Buddy |
+---------+----------------------+
And we’re done.
You can read more here:
The following function rot(s, n)
encodes a string s
with ROT-n
encoding for any integer n
, with n
defaulting to 13. Both upper- and lowercase letters are supported. Values of n
over 26 or negative values are handled appropriately, e.g., shifting by 27 positions is equal to shifting by one position. Decoding is done with invrot(s, n)
.
import string
def rot(s, n=13):
'''Encode string s with ROT-n, i.e., by shifting all letters n positions.
When n is not supplied, ROT-13 encoding is assumed.
'''
upper = string.ascii_uppercase
lower = string.ascii_lowercase
upper_start = ord(upper[0])
lower_start = ord(lower[0])
out = ''
for letter in s:
if letter in upper:
out += chr(upper_start + (ord(letter) - upper_start + n) % 26)
elif letter in lower:
out += chr(lower_start + (ord(letter) - lower_start + n) % 26)
else:
out += letter
return(out)
def invrot(s, n=13):
'''Decode a string s encoded with ROT-n-encoding
When n is not supplied, ROT-13 is assumed.
'''
return(rot(s, -n))
Try this. It always works for me
wget --mirror -p --convert-links -P ./LOCAL-DIR WEBSITE-URL
I think you are trying to over complicate things. A simple solution is to just style your checkbox by default with the unchecked styles and then add the checked state styles.
input[type="checkbox"] {
// Unchecked Styles
}
input[type="checkbox"]:checked {
// Checked Styles
}
I apologize for bringing up an old thread but felt like it could have used a better answer.
EDIT (3/3/2016):
W3C Specs state that :not(:checked)
as their example for selecting the unchecked state. However, this is explicitly the unchecked state and will only apply those styles to the unchecked state. This is useful for adding styling that is only needed on the unchecked state and would need removed from the checked state if used on the input[type="checkbox"]
selector. See example below for clarification.
input[type="checkbox"] {
/* Base Styles aka unchecked */
font-weight: 300; // Will be overwritten by :checked
font-size: 16px; // Base styling
}
input[type="checkbox"]:not(:checked) {
/* Explicit Unchecked Styles */
border: 1px solid #FF0000; // Only apply border to unchecked state
}
input[type="checkbox"]:checked {
/* Checked Styles */
font-weight: 900; // Use a bold font when checked
}
Without using :not(:checked)
in the example above the :checked
selector would have needed to use a border: none;
to achieve the same affect.
Use the input[type="checkbox"]
for base styling to reduce duplication.
Use the input[type="checkbox"]:not(:checked)
for explicit unchecked styles that you do not want to apply to the checked state.
Another way to wait for maximum of certain amount say 10 seconds of time for the element to be displayed as below:
(new WebDriverWait(driver, 10)).until(new ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver d) {
return d.findElement(By.id("<name>")).isDisplayed();
}
});
One more idea.
Although this is not a universal solution - it is simple and works, at least for me :)
For one placeholder {0}:
create function dbo.Format1
(
@String nvarchar(4000),
@Param0 sql_variant
)
returns nvarchar(4000)
as
begin
declare @Null nvarchar(4) = N'NULL';
return replace(@String, N'{0}', cast(isnull(@Param0, @Null) as nvarchar(4000)));
end
For two placeholders {0} and {1}:
create function dbo.Format2
(
@String nvarchar(4000),
@Param0 sql_variant,
@Param1 sql_variant
)
returns nvarchar(4000)
as
begin
declare @Null nvarchar(4) = N'NULL';
set @String = replace(@String, N'{0}', cast(isnull(@Param0, @Null) as nvarchar(4000)));
return replace(@String, N'{1}', cast(isnull(@Param1, @Null) as nvarchar(4000)));
end
For three placeholders {0}, {1} and {2}:
create function dbo.Format3
(
@String nvarchar(4000),
@Param0 sql_variant,
@Param1 sql_variant,
@Param2 sql_variant
)
returns nvarchar(4000)
as
begin
declare @Null nvarchar(4) = N'NULL';
set @String = replace(@String, N'{0}', cast(isnull(@Param0, @Null) as nvarchar(4000)));
set @String = replace(@String, N'{1}', cast(isnull(@Param1, @Null) as nvarchar(4000)));
return replace(@String, N'{2}', cast(isnull(@Param2, @Null) as nvarchar(4000)));
end
and so on...
Such an approach allows us to use these functions in SELECT statement and with parameters of nvarchar, number, bit and datetime datatypes.
For example:
declare @Param0 nvarchar(10) = N'IPSUM' ,
@Param1 int = 1234567 ,
@Param2 datetime2(0) = getdate();
select dbo.Format3(N'Lorem {0} dolor, {1} elit at {2}', @Param0, @Param1, @Param2);
What you're looking for is min-height
and max-height
.
img {
max-width: 100%;
height: auto;
}
.item {
width: 120px;
min-height: 120px;
max-height: auto;
float: left;
margin: 3px;
padding: 3px;
}
I came across this answer trying to style the ReCaptcha v2 for a site that has a light and a dark mode. Played around some more and discovered that besides transform
, filter
is also applied to iframe
elements so ended up using the default/light ReCaptcha and doing this when the user is in dark mode:
.g-recaptcha {
filter: invert(1) hue-rotate(180deg);
}
The hue-rotate(180deg)
makes it so that the logo is still blue and the check-mark is still green when the user clicks it, while keeping white invert()
'ed to black and vice versa.
Didn't see this in any answer or comment so decided to share even if this is an old thread.
It works with option value:
from selenium import webdriver
b = webdriver.Firefox()
b.find_element_by_xpath("//select[@class='class_name']/option[@value='option_value']").click()
Hopes this makes it find the tables as you're reading through the thing:
mysql> show columns from colors;
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| id | int(3) | NO | PRI | NULL | auto_increment |
| color | varchar(15) | YES | | NULL | |
| paint | varchar(10) | YES | | NULL | |
+-------+-------------+------+-----+---------+----------------+
I got the same error and i fixed it by looking at the solution from this site:
http://trac.macports.org/ticket/40476.
SO did you got any error after running './configure' ? Maybe something about lacking tclConfig.sh. If so, instead of running './configure', you have to search for the tclConfigure.sh first and then put it in the command, in my case, its located in /usr/lib/. And then run: './configure ----with-tcl=/usr/lib --with-tclinclude=/usr/include'
I had a similar but it was dealing with dates. Query to show all items for the last month, works great without conditions until Jan. In order for it work correctly, needed to add a year and month variable
declare @yr int
declare @mth int
set @yr=(select case when month(getdate())=1 then YEAR(getdate())-1 else YEAR(getdate())end)
set @mth=(select case when month(getdate())=1 then month(getdate())+11 else month(getdate())end)
Now I just add the variable into condition: ...
(year(CreationTime)=@yr and MONTH(creationtime)=@mth)
If you depend on Spring Social, check that you have configured a Web Controller bean:
import org.springframework.context.annotation.Bean;
import org.springframework.social.connect.web.ConnectController;
import org.springframework.social.connect.ConnectionFactoryLocator;
import org.springframework.social.connect.ConnectionRepository;
...
@Bean
public ConnectController connectController(ConnectionFactoryLocator connectionFactoryLocator, ConnectionRepository connectionRepository) {
return new ConnectController(connectionFactoryLocator, connectionRepository);
}
Try this definitely work.
SELECT p.PersonID AS person_id,
p.Name, p.SS,
f.FearID AS fear_id,
f.Fear
FROM person_fear AS pf
LEFT JOIN persons AS p ON pf.PersonID = p.PersonID
LEFT JOIN fears AS f ON pf.PersonID = f.FearID
WHERE f.FearID = pf.FearID AND p.PersonID = pf.PersonID
For the SQL Server 2019 (Express Edition) installation, I did the following:
SQL Server Installation Center
Installation
New SQL Server stand-alone installation or add features to
an existing installation
C:\SQL2019\Express_ENU
and click OK
Schedule provides various ajax behavior events to respond user actions.
there is more in here https://www.primefaces.org/docs/guide/primefaces_user_guide_5_0.pdf
According to me it'll be working fine...
Just try with this
var GetValue=$('#radiobuttonListId').find(":checked").val();
The Radiobuttonlist value to be stored on GetValue(Variable).
Console applications will exit when the main function has finished running. A "return" will achieve this.
static void Main(string[] args)
{
while (true)
{
Console.WriteLine("I'm running!");
return; //This will exit the console application's running thread
}
}
If you're returning an error code you can do it this way, which is accessible from functions outside of the initial thread:
System.Environment.Exit(-1);
You can check all the config settings using
git config --global --list
You can remove the setting for example username
git config --global --unset user.name
You can edit the configuration or remove the config setting manually by hand using:
git config --global --edit
This is a little strange to see but most answers here are dangerous and gloss over what they are actually doing. Looking at the original question that was asked about removing an item from the slice a copy of the slice is being made and then it's being filled. This ensures that as the slices are passed around your program you don't introduce subtle bugs.
Here is some code comparing users answers in this thread and the original post. Here is a go playground to mess around with this code in.
package main
import (
"fmt"
)
func RemoveIndex(s []int, index int) []int {
return append(s[:index], s[index+1:]...)
}
func main() {
all := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
removeIndex := RemoveIndex(all, 5)
fmt.Println("all: ", all) //[0 1 2 3 4 6 7 8 9 9]
fmt.Println("removeIndex: ", removeIndex) //[0 1 2 3 4 6 7 8 9]
removeIndex[0] = 999
fmt.Println("all: ", all) //[999 1 2 3 4 6 7 9 9]
fmt.Println("removeIndex: ", removeIndex) //[999 1 2 3 4 6 7 8 9]
}
In the above example you can see me create a slice and fill it manually with numbers 0 to 9. We then remove index 5 from all and assign it to remove index. However when we go to print out all now we see that it has been modified as well. This is because slices are pointers to an underlying array. Writing it out to removeIndex
causes all
to be modified as well with the difference being all
is longer by one element that is no longer reachable from removeIndex
. Next we change a value in removeIndex
and we can see all
gets modified as well. Effective go goes into some more detail on this.
The following example I won't go into but it does the same thing for our purposes. And just illustrates that using copy is no different.
package main
import (
"fmt"
)
func RemoveCopy(slice []int, i int) []int {
copy(slice[i:], slice[i+1:])
return slice[:len(slice)-1]
}
func main() {
all := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
removeCopy := RemoveCopy(all, 5)
fmt.Println("all: ", all) //[0 1 2 3 4 6 7 8 9 9]
fmt.Println("removeCopy: ", removeCopy) //[0 1 2 3 4 6 7 8 9]
removeCopy[0] = 999
fmt.Println("all: ", all) //[99 1 2 3 4 6 7 9 9]
fmt.Println("removeCopy: ", removeCopy) //[999 1 2 3 4 6 7 8 9]
}
Looking at the original question it does not modify the slice that it's removing an item from. Making the original answer in this thread the best so far for most people coming to this page.
package main
import (
"fmt"
)
func OriginalRemoveIndex(arr []int, pos int) []int {
new_arr := make([]int, (len(arr) - 1))
k := 0
for i := 0; i < (len(arr) - 1); {
if i != pos {
new_arr[i] = arr[k]
k++
} else {
k++
}
i++
}
return new_arr
}
func main() {
all := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
originalRemove := OriginalRemoveIndex(all, 5)
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
fmt.Println("originalRemove: ", originalRemove) //[0 1 2 3 4 6 7 8 9]
originalRemove[0] = 999
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
fmt.Println("originalRemove: ", originalRemove) //[999 1 2 3 4 6 7 8 9]
}
As you can see this output acts as most people would expect and likely what most people want. Modification of originalRemove
doesn't cause changes in all
and the operation of removing the index and assigning it doesn't cause changes as well! Fantastic!
This code is a little lengthy though so the above can be changed to this.
package main
import (
"fmt"
)
func RemoveIndex(s []int, index int) []int {
ret := make([]int, 0)
ret = append(ret, s[:index]...)
return append(ret, s[index+1:]...)
}
func main() {
all := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
removeIndex := RemoveIndex(all, 5)
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
fmt.Println("removeIndex: ", removeIndex) //[0 1 2 3 4 6 7 8 9]
removeIndex[0] = 999
fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 9 9]
fmt.Println("removeIndex: ", removeIndex) //[999 1 2 3 4 6 7 8 9]
}
Almost identical to the original remove index solution however we make a new slice to append to before returning.
with open("input", "rb") as input:
with open("output", "wb") as output:
while True:
data = input.read(1024)
if data == "":
break
output.write(data)
The above will read 1 kilobyte at a time, and write it. You can support incredibly large files this way, as you won't need to read the entire file into memory.
Just add "D".
int i = 6;
double d = i / 2D; // This will divide bei double.
System.out.println(d); // This will print a double. = 3D
You have to prepend every directory with -I
:
INC=-I/usr/informix/incl/c++ -I/opt/informix/incl/public
Based on the syntax provided
Select * Where Amount = min(Amount)
You could do using:
library(sqldf)
Using @Kara Woo's example df
sqldf("select * from df where Amount in (select min(Amount) from df)")
#Name Amount
#1 B 120
#2 E 120
Remove the '#' and do
Color c = Color.FromArgb(int.Parse("#FFFFFF".Replace("#",""),
System.Globalization.NumberStyles.AllowHexSpecifier));
You can also try this:
import * as drawGauge from '../../../../js/d3gauge.js';
and just new drawGauge(this.opt);
in your ts-code. This solution works in project with angular-cli embedded into laravel on which I currently working on. In my case I try to import poliglot
library (btw: very good for translations) from node_modules:
import * as Polyglot from '../../../node_modules/node-polyglot/build/polyglot.min.js';
...
export class Lang
{
constructor() {
this.polyglot = new Polyglot({ locale: 'en' });
...
}
...
}
This solution is good because i don't need to COPY any files from node_modules
:) .
You can also look on this LIST of ways how to include libs in angular.
Off the top of my head, the following are the only built-ins that are subscriptable:
string: "foobar"[3] == "b"
tuple: (1,2,3,4)[3] == 4
list: [1,2,3,4][3] == 4
dict: {"a":1, "b":2, "c":3}["c"] == 3
But mipadi's answer is correct - any class that implements __getitem__
is subscriptable
If the variable is a parameter then you could use advanced function parameter binding like below to validate not null or empty:
[CmdletBinding()]
Param (
[parameter(mandatory=$true)]
[ValidateNotNullOrEmpty()]
[string]$Version
)
Use this, two<anything any number of times><end of line>
's/two.*$/BLAH/g'
I solved this problem this way. I used kotlin.
var timer = Timer()
var DELAY:Long = 2000
editText.addTextChangedListener(object : TextWatcher {
override fun afterTextChanged(s: Editable?) {
Log.e("TAG","timer start")
timer = Timer()
timer.schedule(object : TimerTask() {
override fun run() {
//do something
}
}, DELAY)
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
Log.e("TAG","timer cancel ")
timer.cancel() //Terminates this timer,discarding any currently scheduled tasks.
timer.purge() //Removes all cancelled tasks from this timer's task queue.
}
})
For Windows :- Goto start menu write , "MySqlserver Instance Configuration Wizard" and reconfigure your mysql server instance. Hope it will solve your problem.
when you construct yours strings it should be like this
bool inact = new string[] { "SUSPENDARE", "DIZOLVARE" }.Any(s=>stare.Contains(s));
I think this is the best way:
this.stops.stream().filter(s -> Objects.equals(s.getStation().getName(), this.name)).findFirst().orElse(null);
See "The Toilet Example" - http://pheatt.emporia.edu/courses/2010/cs557f10/hand07/Mutex%20vs_%20Semaphore.htm:
Mutex:
Is a key to a toilet. One person can have the key - occupy the toilet - at the time. When finished, the person gives (frees) the key to the next person in the queue.
Officially: "Mutexes are typically used to serialise access to a section of re-entrant code that cannot be executed concurrently by more than one thread. A mutex object only allows one thread into a controlled section, forcing other threads which attempt to gain access to that section to wait until the first thread has exited from that section." Ref: Symbian Developer Library
(A mutex is really a semaphore with value 1.)
Semaphore:
Is the number of free identical toilet keys. Example, say we have four toilets with identical locks and keys. The semaphore count - the count of keys - is set to 4 at beginning (all four toilets are free), then the count value is decremented as people are coming in. If all toilets are full, ie. there are no free keys left, the semaphore count is 0. Now, when eq. one person leaves the toilet, semaphore is increased to 1 (one free key), and given to the next person in the queue.
Officially: "A semaphore restricts the number of simultaneous users of a shared resource up to a maximum number. Threads can request access to the resource (decrementing the semaphore), and can signal that they have finished using the resource (incrementing the semaphore)." Ref: Symbian Developer Library
Drive letters can be used in the target like
scp some_file user@host:/c/temp
where c
is the drive letter. It's treated like a directory.
Maybe this works on the source, too.
I am a VIMer. I can do some rare Hex edits with:
:%!xxd
to switch into hex mode
:%!xxd -r
to exit from hex mode
But I strongly recommend ht
apt-cache show ht
Package: ht
Version: 2.0.18-1
Installed-Size: 1780
Maintainer: Alexander Reichle-Schmehl <[email protected]>
Homepage: http://hte.sourceforge.net/
Note: The package is called ht
, whereas the executable is named hte
after the package was installed.
This is the way I prefer:
class Klass(object):
@staticmethod
def stat_func():
return 42
_ANS = stat_func.__func__()
def method(self):
return self.__class__.stat_func() + self.__class__._ANS
I prefer this solution to Klass.stat_func
, because of the DRY principle.
Reminds me of the reason why there is a new super()
in Python 3 :)
But I agree with the others, usually the best choice is to define a module level function.
For instance with @staticmethod
function, the recursion might not look very good (You would need to break DRY principle by calling Klass.stat_func
inside Klass.stat_func
). That's because you don't have reference to self
inside static method.
With module level function, everything will look OK.
change line:
char s[] = "asd";
to:
char *s = "asd";
and things will get more clear
I also encountered this issue.
My problem was that I renamed the folder my extension was in, so all I had to do was delete and reload the extension.
Thought this might help some people out there.
There are a number of reasons why the analysis portion of a compiler is normally separated into lexical analysis and parsing ( syntax analysis) phases.
resource___Compilers (2nd Edition) written by- Alfred V. Abo Columbia University Monica S. Lam Stanford University Ravi Sethi Avaya Jeffrey D. Ullman Stanford University
While the above answers are probably best for this situation, if you just want to do a one-off and don't want to bother with modifying other files, you can in-line the CSS.
<p style="margin-bottom:3cm;">This is the first question?</p>
The simplest solution is to go to your XML layout containing your webview. Change your android:layout_width and android:layout_height from "wrap_content" to "match_parent".
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/webView"/>
You can achieve that with just one line code that simplify that:
$('#divs').get(0).outerHTML;
As simple as that.
The second one would be preferred:
However, having two different types of object in the same list has a bit of a bad design smell. We need more context to speak on that.
vehicle[] car = new vehicle[N];
For Microsoft office 2013
"Last but one" of a non empty row:
=OFFSET(Sheet5!$C$1,COUNTA(Sheet5!$C:$C)-2,0)
"Last" non empty row:
=OFFSET(Sheet5!$C$1,COUNTA(Sheet5!$C:$C)-1,0)
File "C:\pythonwork\readthefile080410.py", line 120, in medications_minimum3
counter[row[11]]+=1
TypeError: unhashable type: 'list'
row[11]
is unhashable. It's a list. That is precisely (and only) what the error message means. You might not like it, but that is the error message.
Do this
counter[tuple(row[11])]+=1
Also, simplify.
d= [ row for row in c if counter[tuple(row[11])]>=sample_cutoff ]
You can simplify your class code to this below and it will work as is but if you want to make your example work, add parenthesis at the end : string x = getTitle();
public class Pin
{
public string Title { get; set;}
}
A simple work around on this issue. As "delete" command only removes the user record in "user" table of "mysql" database, we could add it back and then drop the user completely. Then you could create user with same name.
Step 1. find the record format of user table in mysql database
use mysql;
select * from user;
Step 2. According to the columns showed in step1, create a dummy record with the user name. Insert it into the table, for example, be reminded to replace the "username" with your username.
Insert into user value ('%','username','N','N','N','N','N',
'N','N','N','N','N','N','N','N','N','N','N','N','N','N','N',
'N','N','N','N','N','N','N','N','N','','','','','0','0','0',
'0','mysql_native_password',
'*52C5E3AC6BC5E2E0BFF86978BF62A1481AC79D58','N',
'2016-12-10 23:59:12',null,'N');
Note: sometimes you may encounter issues in inserting, just change the data to make it work.
Step 3. Drop the user.
drop user username;
Now you are able to create user with same name.
I used
Utilities.formatString("%04d", iThe_TWO_to_FOUR_DIGIT)
which gives up to 4 leading 0s
NOTE: THIS REQUIRES Google's apps-script Utilities:
https://developers.google.com/apps-script/reference/utilities/utilities#formatstringtemplate-args
In case of password reset, it is recommended to reset it through sending password reset token to registered user email and ask user to provide new password. If have created a easily usable .NET library over Identity framework with default configuration settins. You can find details at blog link and source code at github.
A clean up practice that I like is to only have only one return.
public int compareTo(Fraction frac) {
int result = 0
double t = this.doubleValue();
double f = frac.doubleValue();
if(t>f)
result = 1;
else if(f>t)
result -1;
return result;
}