Technical differences are a consequence of the goal of each one (OpenJDK is meant to be the reference implementation, open to the community, while Oracle is meant to be a commercial one)
They both have "almost" the same code of the classes in the Java API; but the code for the virtual machine itself is actually different, and when it comes to libraries, OpenJDK tends to use open libraries while Oracle tends to use closed ones; for instance, the font library.
I got the same error with a class like the following StockPickBean
. Called from this code:
List<StockPickBean> beansListcatMap.getValue();
beansList.sort(StockPickBean.Comparators.VALUE);
public class StockPickBean implements Comparable<StockPickBean> {
private double value;
public double getValue() { return value; }
public void setValue(double value) { this.value = value; }
@Override
public int compareTo(StockPickBean view) {
return Comparators.VALUE.compare(this,view); //return
Comparators.SYMBOL.compare(this,view);
}
public static class Comparators {
public static Comparator<StockPickBean> VALUE = (val1, val2) ->
(int)
(val1.value - val2.value);
}
}
After getting the same error:
java.lang.IllegalArgumentException: Comparison method violates its general contract!
I changed this line:
public static Comparator<StockPickBean> VALUE = (val1, val2) -> (int)
(val1.value - val2.value);
to:
public static Comparator<StockPickBean> VALUE = (StockPickBean spb1,
StockPickBean spb2) -> Double.compare(spb2.value,spb1.value);
That fixes the error.
Add this parameter to JAVA_OPTS
or to the command line in Maven:
-Dhttps.protocols=TLSv1.2
I wrote a small helper method to read Paths
from your class resources. It is quite handy to use as it only needs a reference of the class you have stored your resources as well as the name of the resource itself.
public static Path getResourcePath(Class<?> resourceClass, String resourceName) throws URISyntaxException {
URL url = resourceClass.getResource(resourceName);
return Paths.get(url.toURI());
}
Why hasn't anyone thought it was worth mentioning Scanner?
Scanner input = new Scanner(new File("foo.txt"));
while (input.hasNextLine())
{
System.out.println(input.nextLine());
}
Assuming you are using Eclipse, on a MAC you can:
Eclipse.app
Eclipse -> Preferences
Java -> Installed JREs
Add...
buttonMacOS X VM
as the JRE type. Press Next./Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home
JDK 1.7
. Click Finish.File -> New -> Java Project
.Use default JRE (currently JDK 1.7)
Hope this helps
Try placing the desired java directory in PATH before not needed java directories in your PATH.
// Ready to run
import java.io.File;
public class Filewalker {
public void walk( String path ) {
File root = new File( path );
File[] list = root.listFiles();
if (list == null) return;
for ( File f : list ) {
if ( f.isDirectory() ) {
walk( f.getAbsolutePath() );
System.out.println( "Dir:" + f.getAbsoluteFile() );
}
else {
System.out.println( "File:" + f.getAbsoluteFile() );
}
}
}
public static void main(String[] args) {
Filewalker fw = new Filewalker();
fw.walk("c:\\" );
}
}
Decorate Components with the JLayer Class:
The JLayer class is a flexible and powerful decorator for Swing components. The JLayer class in Java SE 7 is similar in spirit to the JxLayer project project at java.net. The JLayer class was initially based on the JXLayer project, but its API evolved separately.
Strings in switch Statement:
In the JDK 7 , we can use a String object in the expression of a switch statement. The Java compiler generates generally more efficient bytecode from switch statements that use String objects than from chained if-then-else statements.
Type Inference for Generic Instance:
We can replace the type arguments required to invoke the constructor of a generic class with an empty set of type parameters (<>) as long as the compiler can infer the type arguments from the context. This pair of angle brackets is informally called the diamond. Java SE 7 supports limited type inference for generic instance creation; you can only use type inference if the parameterized type of the constructor is obvious from the context. For example, the following example does not compile:
List<String> l = new ArrayList<>();
l.add("A");
l.addAll(new ArrayList<>());
In comparison, the following example compiles:
List<? extends String> list2 = new ArrayList<>();
l.addAll(list2);
Catching Multiple Exception Types and Rethrowing Exceptions with Improved Type Checking:
In Java SE 7 and later, a single catch block can handle more than one type of exception. This feature can reduce code duplication. Consider the following code, which contains duplicate code in each of the catch blocks:
catch (IOException e) {
logger.log(e);
throw e;
}
catch (SQLException e) {
logger.log(e);
throw e;
}
In releases prior to Java SE 7, it is difficult to create a common method to eliminate the duplicated code because the variable e has different types. The following example, which is valid in Java SE 7 and later, eliminates the duplicated code:
catch (IOException|SQLException e) {
logger.log(e);
throw e;
}
The catch clause specifies the types of exceptions that the block can handle, and each exception type is separated with a vertical bar (|).
The java.nio.file package
The java.nio.file
package and its related package, java.nio.file.attribute, provide comprehensive support for file I/O and for accessing the file system. A zip file system provider is also available in JDK 7.
Java 7 introduced stricter verification and changed the class format a bit—to contain a stack map used to verify that code is correct. The exception you see means that some method doesn't have a valid stack map.
Java version or bytecode instrumentation could both be to blame. Usually this means that a library used by the application generates invalid bytecode that doesn't pass the stricter verification. So nothing else than reporting it as a bug to the library can be done by the developer.
As a workaround you can add -noverify
to the JVM arguments in order to disable verification. In Java 7 it was also possible to use -XX:-UseSplitVerifier
to use the less strict verification method, but that option was removed in Java 8.
In IntelliJ IDEA this happened to me when I imported a project that had been working fine and running with Java 1.7. I apparently hadn't notified IntelliJ that java 1.7 had been installed on my machine, and it wasn't finding my $JAVA_HOME
.
On a Mac, this is resolved by:
Right clicking on the module | Module Settings | Project
and adding the 1.7 SDK by selecting "New" in the Project SDK.
Then go to the main IntelliJ IDEA menu | Preferences | Maven | Runner
and select the correct JRE. In my case it updated correctly Use Project SDK, which was now 1.7.
Go into your Gradle and look for sourceCompatibility and change it from 1.6 to 7. That worked for me at least.
You can also go into your module settings and set the Source/Target Compatibility to 1.7.
That will produce the following code in your Gradle:
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_7
targetCompatibility JavaVersion.VERSION_1_7
}
I just recently, after seven long years with Maven, learned about toolchains.xml. Maven has it even documented and supports it from 2.0.9 - toolchains documentation
So I added a toolchain.xml file to my ~/.m2/ folder with following content:
<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 http://maven.apache.org/xsd/toolchains-1.1.0.xsd">
<!-- JDK toolchains -->
<toolchain>
<type>jdk</type>
<provides>
<version>1.8</version>
<vendor>sun</vendor>
</provides>
<configuration>
<jdkHome>/opt/java8</jdkHome>
</configuration>
</toolchain>
<toolchain>
<type>jdk</type>
<provides>
<version>1.7</version>
<vendor>sun</vendor>
</provides>
<configuration>
<jdkHome>/opt/java7</jdkHome>
</configuration>
</toolchain>
</toolchains>
It allows you to define what different JDKs Maven can use to build the project irrespective of the JDK Maven runs with. Sort of like when you define JDK on project level in IDE.
May I suggest you to have a look at the tool Jenv
This will allow you to switch at any time between your installed JVMs.
Simply as:
jenv global oracle-1.7
then later for test purpose:
jenv global oracle-1.6
And you have much more commands available.
Even when the question is regarding Java 7, I think it adds value to know that from Java 11 onward, there is a static method in Path
class that allows to do this straight away:
With all the path in one String:
Path.of("/tmp/foo");
With the path broken down in several Strings:
Path.of("/tmp","foo");
Managed to get answer after do some google..
echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
# Java 7
apt-get install oracle-java7-installer
# For Java 8 command is:
apt-get install oracle-java8-installer
There is another possible answer to this question, and I may be the only person foolish enough to have stumbled upon this, but I think it's worth adding, since none of the other answers applied as I already had those settings correct.
When you install a JDK, the installer asks you where you want to install the files. By default, on Windows, this is something like C:\Program Files\Java\jdk1.8.0_74 (or whatever version you are installing).
It then asks you for a directory to install the JRE to, which by default is something like C:\Program Files\Java\jre1.8.0_74.
Note that one is jdk1.8.0_74 and the other is jre1.8.0_74
I was rushing things, and thinking the installer was asking me the same question twice, set both my JDK and JRE install locations to D:\devtools\jdk\jdk1.8.0_74, resulting in the installer overwriting the JDK with the JRE. This resulted in (among other things) a missing javac.exe in my JDK bin, and the same error the OP reported here in all my maven builds.
In theory, the diamond operator allows you to write more compact (and readable) code by saving repeated type arguments. In practice, it's just two confusing chars more giving you nothing. Why?
IMHO, having a clear and simple way to mark a source as Java 7 would be more useful than inventing such strange things. In so marked code raw types could be forbidden without losing anything.
Btw., I don't think that it should be done using a compile switch. The Java version of a program file is an attribute of the file, no option at all. Using something as trivial as
package 7 com.example;
could make it clear (you may prefer something more sophisticated including one or more fancy keywords). It would even allow to compile sources written for different Java versions together without any problems. It would allow introducing new keywords (e.g., "module") or dropping some obsolete features (multiple non-public non-nested classes in a single file or whatsoever) without losing any compatibility.
I know that some may want to smack me for re-opening old post, but if you feel so do it I just hope this may help someone else trying to set JDK 7 on Mac OS (using IntelliJ).
What I did to get this working on my machine is to:
I realize this was long ago answered but want to suggest an additional approach that avoids the nested try-with-resources double block.
public List<User> getUser(int userId) {
try (Connection con = DriverManager.getConnection(myConnectionURL);
PreparedStatement ps = createPreparedStatement(con, userId);
ResultSet rs = ps.executeQuery()) {
// process the resultset here, all resources will be cleaned up
} catch (SQLException e) {
e.printStackTrace();
}
}
private PreparedStatement createPreparedStatement(Connection con, int userId) throws SQLException {
String sql = "SELECT id, username FROM users WHERE id = ?";
PreparedStatement ps = con.prepareStatement(sql);
ps.setInt(1, userId);
return ps;
}
For a new project select the home directory of the jdk
eg C:\Java\jdk1.7.0_99
or C:\Program Files\Java\jdk1.7.0_99
For an existing project.
1) You need to have a jdk
installed on the system.
for instance in
C:\Java\jdk1.7.0_99
2) go to project structure
under File
menu ctrl+alt+shift+S
3) SDKs
is located under Platform Settings
. Select it.
4) click the green +
up the top of the window.
5) select JDK
(I have to use keyboard to select it do not know why).
select the home directory for your jdk installation.
should be good to go.
Try not to use JDK versions higher than the ones supported. I've actually ran into a very ambiguous problem a few months ago.
I had a jar library of my own that I compiled with JDK 8, and I was using it in my assignment. It was giving me some kind of preDexDebug
error every time I tried running it. Eventually after hours of trying to decipher the error logs I finally had an idea of what was wrong. I checked the system requirements, changed compilers from 8 to 7, and it worked. Looks like putting my jar into a library cost me a few hours rather than save it...
this is more likely happening because somewhere along your certificate chain you have a certificate, more likely an old root, which is still signed with the MD2RSA algorythm.
You need to locate it into your certificate store and delete it.
Then get back to your certification authority and ask them for then new root.
It will more likely be the same root with the same validity period but it has been recertified with SHA1RSA.
Hope this help.
Look for "Windows x86", it's the 32 bit version.
Maybe a bit late, but i had same problem.
Click on "Move up" button for Java path and move it at top.
It fixed problem for me
Use UploadStringAsync
method:
WebClient webClient = new WebClient();
webClient.UploadStringCompleted += (s, e) =>
{
if (e.Error != null)
{
//handle your error here
}
else
{
//post was successful, so do what you need to do here
}
};
webClient.UploadStringAsync(new Uri(yourUri), UriKind.Absolute), "POST", yourParameters);
simple solution is this:
game.js:
document.addEventListener('click', printMousePos, true);
function printMousePos(e){
cursorX = e.pageX;
cursorY= e.pageY;
$( "#test" ).text( "pageX: " + cursorX +",pageY: " + cursorY );
}
Are you looking for the string contains a certain number of words or contains specific words? Your example leads towards the latter.
In that case, you may wish to look into parsing strings or at least use regex.
Learn regex - it will be useful 1000x over in programming. I cannot emphasize this too much. Using contains and if statements will turn into a mess very quickly.
If you are just trying to count words, then :
string d = "You hit someone for 50 damage";
string[] words = d.Split(' '); // Break up the string into words
Console.Write(words.Length);
typeof(T).Name // class name, no namespace
typeof(T).FullName // namespace and class name
typeof(T).Namespace // namespace, no class name
I would use python-dpkt. Here is the documentation: http://www.commercialventvac.com/dpkt.html
This is all I know how to do though sorry.
#!/usr/local/bin/python2.7
import dpkt
counter=0
ipcounter=0
tcpcounter=0
udpcounter=0
filename='sampledata.pcap'
for ts, pkt in dpkt.pcap.Reader(open(filename,'r')):
counter+=1
eth=dpkt.ethernet.Ethernet(pkt)
if eth.type!=dpkt.ethernet.ETH_TYPE_IP:
continue
ip=eth.data
ipcounter+=1
if ip.p==dpkt.ip.IP_PROTO_TCP:
tcpcounter+=1
if ip.p==dpkt.ip.IP_PROTO_UDP:
udpcounter+=1
print "Total number of packets in the pcap file: ", counter
print "Total number of ip packets: ", ipcounter
print "Total number of tcp packets: ", tcpcounter
print "Total number of udp packets: ", udpcounter
Update:
There is a point to only put commands and options in variables.
#! /bin/bash
if [ $# -ne 2 ]
then
echo "Usage: `basename $0` DIRECTORY BACKUP_DIRECTORY"
exit 1
fi
. standard_tools
directory=$1
backup_directory=$2
current_date=$(date +%Y-%m-%dT%H-%M-%S)
backup_file="${backup_directory}/${current_date}.backup"
${tar_create} "${directory}" | ${openssl} | ${split_1024} "$backup_file"
You can relocate the commands to another file you source, so you can reuse the same commands and options across many scripts. This is very handy when you have a lot of scripts and you want to control how they all use tools. So standard_tools would contain:
export tar_create="tar cv"
export openssl="openssl des3 -salt"
export split_1024="split -b 1024m -"
public static bool CheckURLValid(this string source)
{
Uri uriResult;
return Uri.TryCreate(source, UriKind.Absolute, out uriResult) && uriResult.Scheme == Uri.UriSchemeHttp;
}
Usage:
string url = "htts://adasd.xc.";
if(url.CheckUrlValid())
{
//valid process
}
UPDATE: (single line of code) Thanks @GoClimbColorado
public static bool CheckURLValid(this string source) => Uri.TryCreate(source, UriKind.Absolute, out Uri uriResult) && uriResult.Scheme == Uri.UriSchemeHttps;
Usage:
string url = "htts://adasd.xc.";
if(url.CheckUrlValid())
{
//valid process
}
Rules are used to add additional functionality which applies to all tests within a test class, but in a more generic way.
For instance, ExternalResource executes code before and after a test method, without having to use @Before
and @After
. Using an ExternalResource
rather than @Before
and @After
gives opportunities for better code reuse; the same rule can be used from two different test classes.
The design was based upon: Interceptors in JUnit
For more information see JUnit wiki : Rules.
Yes... I am using Hue 3.7.0 - The Hadoop UI and to get current date/time information we can use below commands in Hive:
SELECT from_unixtime(unix_timestamp()); --/Selecting Current Time stamp/
SELECT CURRENT_DATE; --/Selecting Current Date/
SELECT CURRENT_TIMESTAMP; --/Selecting Current Time stamp/
However, in Impala you will find that only below command is working to get date/time details:
SELECT from_unixtime(unix_timestamp()); --/Selecting Current Timestamp /
Hope it resolves your query :)
For default tooltip this can be used -
System.Windows.Forms.ToolTip ToolTip1 = new System.Windows.Forms.ToolTip();
ToolTip1.SetToolTip(this.textBox1, "Hello world");
A customized tooltip can also be used in case if formatting is required for tooltip message. This can be created by custom formatting the form and use it as tooltip dialog on mouse hover event of the control. Please check following link for more details -
http://newapputil.blogspot.in/2015/08/create-custom-tooltip-dialog-from-form.html
You can use http_build_query to generate a URL-encoded querystring from an array in PHP. Whilst the resulting querystring will be expanded, you can decide on a unique separator you want as a parameter to the http_build_query
method, so when it comes to decoding, you can check what separator was used. If it was the unique one you chose, then that would be the array querystring otherwise it would be the normal querystrings.
Here is a sample shell script (make sure you replace the MATH name with the name of the your application):
#!/bin/bash
### BEGIN INIT INFO
# Provides: MATH
# Required-Start: $java
# Required-Stop: $java
# Short-Description: Start and stop MATH service.
# Description: -
# Date-Creation: -
# Date-Last-Modification: -
# Author: -
### END INIT INFO
# Variables
PGREP=/usr/bin/pgrep
JAVA=/usr/bin/java
ZERO=0
# Start the MATH
start() {
echo "Starting MATH..."
#Verify if the service is running
$PGREP -f MATH > /dev/null
VERIFIER=$?
if [ $ZERO = $VERIFIER ]
then
echo "The service is already running"
else
#Run the jar file MATH service
$JAVA -jar /opt/MATH/MATH.jar > /dev/null 2>&1 &
#sleep time before the service verification
sleep 10
#Verify if the service is running
$PGREP -f MATH > /dev/null
VERIFIER=$?
if [ $ZERO = $VERIFIER ]
then
echo "Service was successfully started"
else
echo "Failed to start service"
fi
fi
echo
}
# Stop the MATH
stop() {
echo "Stopping MATH..."
#Verify if the service is running
$PGREP -f MATH > /dev/null
VERIFIER=$?
if [ $ZERO = $VERIFIER ]
then
#Kill the pid of java with the service name
kill -9 $($PGREP -f MATH)
#Sleep time before the service verification
sleep 10
#Verify if the service is running
$PGREP -f MATH > /dev/null
VERIFIER=$?
if [ $ZERO = $VERIFIER ]
then
echo "Failed to stop service"
else
echo "Service was successfully stopped"
fi
else
echo "The service is already stopped"
fi
echo
}
# Verify the status of MATH
status() {
echo "Checking status of MATH..."
#Verify if the service is running
$PGREP -f MATH > /dev/null
VERIFIER=$?
if [ $ZERO = $VERIFIER ]
then
echo "Service is running"
else
echo "Service is stopped"
fi
echo
}
# Main logic
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status
;;
restart|reload)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|status|restart|reload}"
exit 1
esac
exit 0
The output of ls -al /usr/bin/adb
should show that it is owned by user root
and group root
. You can use Linux ACL (Access Control Lists) to give your local user permissions for adb
as follows:
setfacl -m "u:userName:rwx" /usr/bin/adb
This is preferable to setting the SUID bit on /usr/bin/adb
and also limits the users who can use adb
to userName and root.
If the device is rooted,
root@mako:/ # settings put global package_verifier_enable 0
Seems to do the trick.
This is the simplest way to loop through a form accessing only the form elements. Inside the each function you can check and build whatever you want. When building objects note that you will want to declare it outside of the each function.
EDIT JSFIDDLE
The below will work
$('form[name=formName]').find('input, textarea, select').each(function() {
alert($(this).attr('name'));
});
Just for punctuality purpose and extend a bit Tim answer.
From official documentation:
The app returned by express() is in fact a JavaScript Function, DESIGNED TO BE PASSED to Node’s HTTP servers as a callback to handle requests.
This makes it easy to provide both HTTP and HTTPS versions of your app with the same code base, as the app does not inherit from these (it is simply a callback):
http.createServer(app).listen(80);
https.createServer(options, app).listen(443);
The app.listen() method returns an http.Server object and (for HTTP) is a convenience method for the following:
app.listen = function() {
var server = http.createServer(this);
return server.listen.apply(server, arguments);
};
Microsoft has their own Command Line Standard specification:
This document is focused at developers of command line utilities. Collectively, our goal is to present a consistent, composable command line user experience. Achieving that allows a user to learn a core set of concepts (syntax, naming, behaviors, etc) and then be able to translate that knowledge into working with a large set of commands. Those commands should be able to output standardized streams of data in a standardized format to allow easy composition without the burden of parsing streams of output text. This document is written to be independent of any specific implementation of a shell, set of utilities or command creation technologies; however, Appendix J - Using Windows Powershell to implement the Microsoft Command Line Standard shows how using Windows PowerShell will provide implementation of many of these guidelines for free.
It is in your project properties under Publish
I found a solution using AutoLayout in StoryBoard.
1) Set no of lines to 0 and text alignment to Left.
2) Set height constraint.
3) The height Constraint should be in Relation - Less Than or Equal
4)
override func viewWillLayoutSubviews() {
sampleLabel.sizeToFit()
}
I got the result as follows :
If you want to get the count of records then you have to apply the group by on some field or apply the below query.
db.rawQuery("select count(field) as count_record from tablename where field =" + condition, null);
int
converts by truncation, as has been mentioned by others. This can result in the answer being one different than expected. One way around this is to check if the result is 'close enough' to an integer and adjust accordingly, otherwise the usual conversion. This is assuming you don't get too much roundoff and calculation error, which is a separate issue. For example:
def toint(f):
trunc = int(f)
diff = f - trunc
# trunc is one too low
if abs(f - trunc - 1) < 0.00001:
return trunc + 1
# trunc is one too high
if abs(f - trunc + 1) < 0.00001:
return trunc - 1
# trunc is the right value
return trunc
This function will adjust for off-by-one errors for near integers. The mpmath
library does something similar for floating point numbers that are close to integers.
The problem is this block:
using (var sr = new StreamReader(ms))
{
Console.WriteLine(sr.ReadToEnd());
}
When the StreamReader
is closed (after leaving the using), it closes it's underlying stream as well, so now the MemoryStream
is closed. When the StreamWriter
gets closed, it tries to flush everything to the MemoryStream
, but it is closed.
You should consider not putting the StreamReader
in a using block.
Adding return false;
worked for me:
jQuery version:
$(document).on('click', '#video-id', function (e) {
var video = $(this).get(0);
if (video.paused === false) {
video.pause();
} else {
video.play();
}
return false;
});
Vanilla JavaScript version:
var v = document.getElementById('videoid');
v.addEventListener(
'play',
function() {
v.play();
},
false);
v.onclick = function() {
if (v.paused) {
v.play();
} else {
v.pause();
}
return false;
};
My working example of using style and android:theme simultaneously (API >= 21)
<android.support.v7.widget.SwitchCompat
android:id="@+id/wan_enable_nat_switch"
style="@style/Switch"
app:layout_constraintBaseline_toBaselineOf="@id/wan_enable_nat_label"
app:layout_constraintEnd_toEndOf="parent" />
<style name="Switch">
<item name="android:layout_width">wrap_content</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:paddingEnd">16dp</item>
<item name="android:focusableInTouchMode">true</item>
<item name="android:theme">@style/ThemeOverlay.MySwitchCompat</item>
</style>
<style name="ThemeOverlay.MySwitchCompat" parent="">
<item name="colorControlActivated">@color/colorPrimaryDark</item>
<item name="colorSwitchThumbNormal">@color/text_outline_not_active</item>
<item name="android:colorForeground">#42221f1f</item>
</style>
Try this, It always works, and you will get NO TypeError:
try{
var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getElementsByName("username")[0], 'pass' : document.getElementsByName("password")[0] };
if( __i.user.value.length >= 1 ) { i1.value = ''; } else { i1.value = 'Acc'; }
if( __i.pass.value.length >= 1 ) { i2.value = ''; } else { i2.value = 'Pwd'; }
}catch(e){
if(e){
// If fails, Do something else
}
}
If you are using Angular, you can use the angular.isArray() function
var myArray = [];
angular.isArray(myArray); // returns true
var myObj = {};
angular.isArray(myObj); //returns false
cPickle
comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle
, you can do this:
>>> import _pickle as cPickle
However, in 3.x, it's easier just to use pickle
.
No need to install anything. If something requires cPickle
in python 3.x, then that's probably a bug.
Use Integer.toString(tmpInt)
instead.
consider changing host entry 127.0.0.1
to localhost
or even the IP address of the server.
$cfg['Servers'][$i]['host']
It's a builtin function that returns an object that can be iterated over. See the documentation.
In short, it loops over the elements of an iterable (like a list), as well as an index number, combined in a tuple:
for item in enumerate(["a", "b", "c"]):
print item
prints
(0, "a")
(1, "b")
(2, "c")
It's helpful if you want to loop over a sequence (or other iterable thing), and also want to have an index counter available. If you want the counter to start from some other value (usually 1), you can give that as second argument to enumerate
.
The Alex Martelli answer won't work in Python 3 because out
will be a bytes object and thus result in a TypeError: a bytes-like object is required, not 'str'
when testing if 'iChat' in line:
.
Quoting from subprocess documentation:
communicate() returns a tuple (stdout_data, stderr_data). The data will be strings if streams were opened in text mode; otherwise, bytes.
For Python 3, this is solved by adding the text=True
(>= Python 3.7) or universal_newlines=True
argument to the Popen
constructor. out
will then be returned as a string object.
import subprocess, signal
import os
p = subprocess.Popen(['ps', '-A'], stdout=subprocess.PIPE, text=True)
out, err = p.communicate()
for line in out.splitlines():
if 'iChat' in line:
pid = int(line.split(None, 1)[0])
os.kill(pid, signal.SIGKILL)
Alternatively, you can create a string using the decode() method of bytes.
import subprocess, signal
import os
p = subprocess.Popen(['ps', '-A'], stdout=subprocess.PIPE)
out, err = p.communicate()
for line in out.splitlines():
if 'iChat' in line.decode('utf-8'):
pid = int(line.split(None, 1)[0])
os.kill(pid, signal.SIGKILL)
You will have to use JavaScript. The browser will only send the value
of the selected option (so its not PHP's fault).
What your JS should do is hook into the form's submit event and create a hidden field with the value of the selected option's stud_name
value. This hidden field will then get sent to the server.
That being said ... you shouldn't relay on the client to provide the correct data. You already know what stud_name
should be for a given value on the server (since you are outputting it). So just apply the same logic when you are processing the form.
I have stuck in this issue for a while and I have came to the following solution
In ApplicationContextAware we have to implement the one method only
public void setApplicationContext(ApplicationContext context) throws BeansException
Tell the spring context about this new bean (I call it SpringContext)
bean id="springContext" class="packe.of.SpringContext" />
Here is the code snippet
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class SpringContext implements ApplicationContextAware {
private static ApplicationContext context;
@Override
public void setApplicationContext(ApplicationContext context) throws BeansException {
this.context = context;
}
public static ApplicationContext getApplicationContext() {
return context;
}
}
Then you can call any method of application context outside the spring context for example
SomeServiceClassOrComponent utilityService SpringContext.getApplicationContext().getBean(SomeServiceClassOrComponent .class);
I hope this will solve the problem for many users
&&
strings commands together. Successive commands only execute if preceding ones succeed.
Similarly, ||
will allow the successive command to execute if the preceding fails.
$(document).ready(function(){
$('#txtInput').live("cut copy paste",function(e) {
e.preventDefault();
});
});
On textbox live event cut, copy, paste event is prevented and it works well.
This Worked For Me. I have installed wordpress in godaddy shared server. Open .htaccess file using editor and add the following from the first line,
# BEGIN Increases Max Upload Size
php_value upload_max_filesize 20M
php_value post_max_size 20M
php_value max_execution_time 300
php_value max_input_time 300
# END Increases Max Upload Size
This solved the php.ini issues for me in the server.
<HTML>
<HEAD>
<SCRIPT language=Javascript>
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : evt.keyCode;
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
</SCRIPT>
</HEAD>
<BODY>
<INPUT id="txtChar" onkeypress="return isNumberKey(event)" type="text" name="txtChar">
</BODY>
</HTML>
web2py has comet_messaging.py, which uses Tornado for websockets look at an example here: http://vimeo.com/18399381 and here vimeo . com / 18232653
$(sudo run command)
If you're going to use an apostrophe, you need `
, not '
. This character is called "backticks" (or "grave accent"):
#!/bin/bash
VAR1="$1"
VAR2="$2"
MOREF=`sudo run command against "$VAR1" | grep name | cut -c7-`
echo "$MOREF"
The "friendly PIL fork" Pillow works on Python 2 and 3. Check out the Github project for support matrix and so on.
try this one its worked for me
$(document).ready(function(e){_x000D_
$.ajax({_x000D_
url:"fetch",_x000D_
processData: false,_x000D_
dataType:"json",_x000D_
type: 'POST',_x000D_
cache: false,_x000D_
success: function (data, textStatus, jqXHR) {_x000D_
_x000D_
$.each(data.Table,function(i,tweet){_x000D_
$("#list").append('<option value="'+tweet.actor_id+'">'+tweet.first_name+'</option>');_x000D_
});}_x000D_
});_x000D_
});
_x000D_
From a sqlite prompt:
sqlite> .read db.sql
Or:
cat db.sql | sqlite3 database.db
Also, your SQL is invalid - you need ;
on the end of your statements:
create table server(name varchar(50),ipaddress varchar(15),id init);
create table client(name varchar(50),ipaddress varchar(15),id init);
WebSocket is just another application level protocol over TCP protocol, just like HTTP.
Some snippets < Spring in Action 4> quoted below, hope it can help you understand WebSocket better.
In its simplest form, a WebSocket is just a communication channel between two applications (not necessarily a browser is involved)...WebSocket communication can be used between any kinds of applications, but the most common use of WebSocket is to facilitate communication between a server application and a browser-based application.
You can use the dictionary type of formatting:
s='arbit'
string='%(key)s hello world %(key)s hello world %(key)s' % {'key': s,}
The phrase commonly used is "we're all consenting adults here". By prepending a single underscore (don't expose) or double underscore (hide), you're telling the user of your class that you intend the member to be 'private' in some way. However, you're trusting everyone else to behave responsibly and respect that, unless they have a compelling reason not to (e.g. debuggers, code completion).
If you truly must have something that is private, then you can implement it in an extension (e.g. in C for CPython). In most cases, however, you simply learn the Pythonic way of doing things.
From the documentation for strtotime()
:
Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed.
In your date string, you have 12-16-2013
. 16
isn't a valid month, and hence strtotime()
returns false
.
Since you can't use DateTime class, you could manually replace the -
with /
using str_replace()
to convert the date string into a format that strtotime()
understands:
$date = '2-16-2013';
echo date('Y-m-d', strtotime(str_replace('-','/', $date))); // => 2013-02-16
I had a column where the first and last name were both were in one column. The first and last name were separated by a comma. The code below worked. There is NO error checking/correction. Just a dumb split. Used phpMyAdmin to execute the SQL statement.
UPDATE tblAuthorList SET AuthorFirst = SUBSTRING_INDEX(AuthorLast,',',-1) , AuthorLast = SUBSTRING_INDEX(AuthorLast,',',1);
You can specify multiple patterns in an array.
select-string VendorEnquiry,Failed C:\Logs
This works with -notmatch as well:
select-string -notmatch VendorEnquiry,Failed C:\Logs
The mathematical solution given by @Bretana is good but neglects two specific details:
About the closed or open state of interval boundaries, the solution of @Bretana valid for closed intervals
(StartA <= EndB) and (EndA >= StartB)
can be rewritten for half-open intervals to:
(StartA < EndB) and (EndA > StartB)
This correction is necessary because an open interval boundary does not belong to the value range of an interval by definition.
And about empty intervals, well, here the relationship shown above does NOT hold. Empty intervals which do not contain any valid value by definition must be handled as special case. I demonstrate it by my Java time library Time4J via this example:
MomentInterval a = MomentInterval.between(Instant.now(), Instant.now().plusSeconds(2));
MomentInterval b = a.collapse(); // make b an empty interval out of a
System.out.println(a); // [2017-04-10T05:28:11,909000000Z/2017-04-10T05:28:13,909000000Z)
System.out.println(b); // [2017-04-10T05:28:11,909000000Z/2017-04-10T05:28:11,909000000Z)
The leading square bracket "[" indicates a closed start while the last bracket ")" indicates an open end.
System.out.println(
"startA < endB: " + a.getStartAsInstant().isBefore(b.getEndAsInstant())); // false
System.out.println(
"endA > startB: " + a.getEndAsInstant().isAfter(b.getStartAsInstant())); // true
System.out.println("a overlaps b: " + a.intersects(b)); // a overlaps b: false
As shown above, empty intervals violate the overlap condition above (especially startA < endB), so Time4J (and other libraries, too) has to handle it as special edge case in order to guarantee that the overlap of any arbitrary interval with an empty interval does not exist. Of course, date intervals (which are closed by default in Time4J but can be half-open, too, like empty date intervals) are handled in a similar way.
There is no difference if you are not using the value after increment in the loop.
for (int i = 0; i < 4; ++i){
cout<<i;
}
for (int i = 0; i < 4; i++){
cout<<i;
}
Both the loops will print 0123.
But the difference comes when you uses the value after increment/decrement in your loop as below:
Pre Increment Loop:
for (int i = 0,k=0; i < 4; k=++i){
cout<<i<<" ";
cout<<k<<" ";
}
Output: 0 0 1 1 2 2 3 3
Post Increment Loop:
for (int i = 0, k=0; i < 4; k=i++){
cout<<i<<" ";
cout<<k<<" ";
}
Output: 0 0 1 0 2 1 3 2
I hope the difference is clear by comparing the output. Point to note here is the increment/decrement is always performed at the end of the for loop and hence the results can be explained.
You can't do
LivingRoom.objects.create(user=instance)
because you have an __init__
method that does NOT take user
as argument.
You need something like
#signal function: if a user is created, add control livingroom to the user
def create_control_livingroom(sender, instance, created, **kwargs):
if created:
my_room = LivingRoom()
my_room.user = instance
Update
But, as bruno has already said it, Django's models.Model
subclass's initializer is best left alone, or should accept *args
and **kwargs
matching the model's meta fields.
So, following better principles, you should probably have something like
class LivingRoom(models.Model):
'''Living Room object'''
user = models.OneToOneField(User)
def __init__(self, *args, temp=65, **kwargs):
self.temp = temp
return super().__init__(*args, **kwargs)
Note - If you weren't using temp
as a keyword argument, e.g. LivingRoom(65)
, then you'll have to start doing that. LivingRoom(user=instance, temp=66)
or if you want the default (65), simply LivingRoom(user=instance)
would do.
Very simple solution:
private bool _focusing = false;
protected override void OnEnter( EventArgs e )
{
_focusing = true;
base.OnEnter( e );
}
protected override void OnMouseUp( MouseEventArgs mevent )
{
base.OnMouseUp( mevent );
if( _focusing )
{
this.SelectAll();
_focusing = false;
}
}
EDIT: Original OP was in particular concerned about the mouse-down / text-selection / mouse-up sequence, in which case the above simple solution would end up with text being partially selected.
This should solve* the problem (in practice I intercept WM_SETCURSOR):
protected override void WndProc( ref Message m )
{
if( m.Msg == 32 ) //WM_SETCURSOR=0x20
{
this.SelectAll(); // or your custom logic here
}
base.WndProc( ref m );
}
*Actually the following sequence ends up with partial text selection but then if you move the mouse over the textbox all text will be selected again:
mouse-down / text-selection / mouse-move-out-textbox / mouse-up
First of all, this approach won't scale in the large, you'll need a separate index from words to item (like an inverted index).
If your data is not large, you can do
SELECT DISTINCT(name) FROM mytable WHERE name LIKE '%mall%' OR description LIKE '%mall%'
using OR
if you have multiple keywords.
What about an onclick function:
<form id="form">
<input type="text" name="firstInput">
<button type="button" name="namebutton"
onClick="$('#gif').css('visibility', 'visible');
$('#form').submit();">
</form>
Of course you can put this in a function and then trigger it with an onClick
The Barack Obama app took 22 days to develop from first code to release. Three developers (although not all of them were full time). 10 people total. Figure 500-1000 man hours. Contracting rates are $100-150/hr. Figure $50000-$150000. Compare your app to Obama.app and scale accordingly.
This is a simple approach if you don't have much code changes:
1. git stash
2. git stash apply
3. remove the files/code you don't want to commit
4. commit the remaining files/code you do want
Then if you want the code you removed (bits you didn't commit) in a separate commit or another branch, then while still on this branch do:
5. git stash apply
6. git stash
With step 5 as you already applied the stash and committed the code you did want in step 4, the diff and untracked in the newly applied stash is just the code you removed in step 3 before you committed in step 4.
As such step 6 is a stash of the code you didn't [want to] commit, as you probably don't really want to lose those changes right? So the new stash from step 6 can now be committed to this or any other branch by doing git stash apply on the correct branch and committing.
Obviously this presumes you do the steps in one flow, if you stash at any other point in these steps you'll need to note the stash ref for each step above (rather than just basic stash and apply the most recent stash).
A solution that is viable for both Linux and Windows is to just get used to using console ffmpeg in your code. I stack up threads, write a simple thread controller class, then you can easily make use of what ever functionality of ffmpeg you want to use.
As an example, this contains sections use ffmpeg to create a thumbnail from a time that I specify.
In the thread controller you have something like
List<ThrdFfmpeg> threads = new List<ThrdFfmpeg>();
Which is the list of threads that you are running, I make use of a timer to Pole these threads, you can also set up an event if Pole'ing is not suitable for your application. In this case thw class Thrdffmpeg contains,
public class ThrdFfmpeg
{
public FfmpegStuff ffm { get; set; }
public Thread thrd { get; set; }
}
FFmpegStuff contains the various ffmpeg functionality, thrd is obviously the thread.
A property in FfmpegStuff is the class FilesToProcess, which is used to pass information to the called process, and receive information once the thread has stopped.
public class FileToProcess
{
public int videoID { get; set; }
public string fname { get; set; }
public int durationSeconds { get; set; }
public List<string> imgFiles { get; set; }
}
VideoID (I use a database) tells the threaded process which video to use taken from the database. fname is used in other parts of my functions that use FilesToProcess, but not used here. durationSeconds - is filled in by the threads that just collect video duration. imgFiles is used to return any thumbnails that were created.
I do not want to get bogged down in my code when the purpose of this is to encourage the use of ffmpeg in easily controlled threads.
Now we have our pieces we can add to our threads list, so in our controller we do something like,
AddThread()
{
ThrdFfmpeg thrd;
FileToProcess ftp;
foreach(FileToProcess ff in `dbhelper.GetFileNames(txtCategory.Text))`
{
//make a thread for each
ftp = new FileToProcess();
ftp = ff;
ftp.imgFiles = new List<string>();
thrd = new ThrdFfmpeg();
thrd.ffm = new FfmpegStuff();
thrd.ffm.filetoprocess = ftp;
thrd.thrd = new `System.Threading.Thread(thrd.ffm.CollectVideoLength);`
threads.Add(thrd);
}
if(timerNotStarted)
StartThreadTimer();
}
Now Pole'ing our threads becomes a simple task,
private void timerThreads_Tick(object sender, EventArgs e)
{
int runningCount = 0;
int finishedThreads = 0;
foreach(ThrdFfmpeg thrd in threads)
{
switch (thrd.thrd.ThreadState)
{
case System.Threading.ThreadState.Running:
++runningCount;
//Note that you can still view data progress here,
//but remember that you must use your safety checks
//here more than anywhere else in your code, make sure the data
//is readable and of the right sort, before you read it.
break;
case System.Threading.ThreadState.StopRequested:
break;
case System.Threading.ThreadState.SuspendRequested:
break;
case System.Threading.ThreadState.Background:
break;
case System.Threading.ThreadState.Unstarted:
//Any threads that have been added but not yet started, start now
thrd.thrd.Start();
++runningCount;
break;
case System.Threading.ThreadState.Stopped:
++finishedThreads;
//You can now safely read the results, in this case the
//data contained in FilesToProcess
//Such as
ThumbnailsReadyEvent( thrd.ffm );
break;
case System.Threading.ThreadState.WaitSleepJoin:
break;
case System.Threading.ThreadState.Suspended:
break;
case System.Threading.ThreadState.AbortRequested:
break;
case System.Threading.ThreadState.Aborted:
break;
default:
break;
}
}
if(flash)
{//just a simple indicator so that I can see
//that at least one thread is still running
lbThreadStatus.BackColor = Color.White;
flash = false;
}
else
{
lbThreadStatus.BackColor = this.BackColor;
flash = true;
}
if(finishedThreads >= threads.Count())
{
StopThreadTimer();
ShowSample();
MakeJoinedThumb();
}
}
Putting your own events onto into the controller class works well, but in video work, when my own code is not actually doing any of the video file processing, poling then invoking an event in the controlling class works just as well.
Using this method I have slowly built up just about every video and stills function I think I will ever use, all contained in the one class, and that class as a text file is useable on the Lunux and Windows version, with just a small number of pre-process directives.
The question depends on what you are actually trying to do.
Usually, instead of doing document.write
you can use someElement.innerHTML
or better, document.createElement
with an someElement.appendChild
.
You can also consider using a library like jQuery and using the modification functions in there: http://api.jquery.com/category/manipulation/
What is the "source" of those integer? If it is something that you need to hard code in your source code, you may do
arList.addAll(Arrays.asList(1,1,2,3,5,8,13,21));
No, #region does not exist in the T-SQL language.
You can get code-folding using begin-end blocks:
-- my region begin -- code goes here end
I'm not sure I'd recommend using them for this unless the code cannot be acceptably refactored by other means though!
$("#foo > div").length
Direct children of the element with the id 'foo' which are divs. Then retrieving the size of the wrapped set produced.
If you would like to modify file names in an editor (such as vim), the click library comes with the command click.edit()
, which can be used to receive user input from an editor. Here is an example of how it can be used to refactor files in a directory.
import click
from pathlib import Path
# current directory
direc_to_refactor = Path(".")
# list of old file paths
old_paths = list(direc_to_refactor.iterdir())
# list of old file names
old_names = [str(p.name) for p in old_paths]
# modify old file names in an editor,
# and store them in a list of new file names
new_names = click.edit("\n".join(old_names)).split("\n")
# refactor the old file names
for i in range(len(old_paths)):
old_paths[i].replace(direc_to_refactor / new_names[i])
I wrote a command line application that uses the same technique, but that reduces the volatility of this script, and comes with more options, such as recursive refactoring. Here is the link to the github page. This is useful if you like command line applications, and are interested in making some quick edits to file names. (My application is similar to the "bulkrename" command found in ranger).
In CakePHP 1.3, use 'default'=>value
to select the default value in a select input:
$this->Form->input('Leaf.id', array('type'=>'select', 'label'=>'Leaf', 'options'=>$leafs, 'default'=>'3'));
In the interpreter its easy to restart it and fix such problems. If you don't want to restart the interpreter, there is another way to fix it:
Python 2.6.6 (r266:84292, Dec 27 2010, 00:02:40)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> l = [1,2,3]
>>> sum(l)
6
>>> sum = 0 # oops! shadowed a builtin!
>>> sum(l)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable
>>> import sys
>>> sum = sys.modules['__builtin__'].sum # -- fixing sum
>>> sum(l)
6
This also comes in handy if you happened to assign a value to any other builtin, like dict
or list
Promise.all
is all or nothing. It resolves once all promises in the array resolve, or reject as soon as one of them rejects. In other words, it either resolves with an array of all resolved values, or rejects with a single error.
Some libraries have something called Promise.when
, which I understand would instead wait for all promises in the array to either resolve or reject, but I'm not familiar with it, and it's not in ES6.
Your code
I agree with others here that your fix should work. It should resolve with an array that may contain a mix of successful values and errors objects. It's unusual to pass error objects in the success-path but assuming your code is expecting them, I see no problem with it.
The only reason I can think of why it would "not resolve" is that it's failing in code you're not showing us and the reason you're not seeing any error message about this is because this promise chain is not terminated with a final catch (as far as what you're showing us anyway).
I've taken the liberty of factoring out the "existing chain" from your example and terminating the chain with a catch. This may not be right for you, but for people reading this, it's important to always either return or terminate chains, or potential errors, even coding errors, will get hidden (which is what I suspect happened here):
Promise.all(state.routes.map(function(route) {
return route.handler.promiseHandler().catch(function(err) {
return err;
});
}))
.then(function(arrayOfValuesOrErrors) {
// handling of my array containing values and/or errors.
})
.catch(function(err) {
console.log(err.message); // some coding error in handling happened
});
\ = \\
" = \"
new line = \r\n
OR \n\r
OR \n
(depends on OS) bun usualy \n
enough.
taabulator = \t
The above solutions must work. However you can try this one:
OnClientClick="return SomeMethod();return false;"
and remove return statement from the method.
In our case it was Windows-integrated authentication specified in the app's web.config
BUT the windows-auth module was not installed on the IIS machine at all.
Just adding another possible reason.
If you are making repeated calls and are concerned with performance, This test reveals the BASH method is ~15x faster than forking to sed and likely any other external process.
hello=123456789X123456789X123456789X123456789X123456789X123456789X123456789X123456789X123456789X123456789X123456789X
P1=$(date +%s)
for i in {1..10000}
do
echo $hello | sed s/X//g > /dev/null
done
P2=$(date +%s)
echo $[$P2-$P1]
for i in {1..10000}
do
echo ${hello//X/} > /dev/null
done
P3=$(date +%s)
echo $[$P3-$P2]
You can't beat the simplicity of a locked message queue. I say don't waste your time with anything more complex.
Read up on the lock statement.
EDIT
Here is an example of the Microsoft Queue object wrapped so all actions against it are thread safe.
public class Queue<T>
{
/// <summary>Used as a lock target to ensure thread safety.</summary>
private readonly Locker _Locker = new Locker();
private readonly System.Collections.Generic.Queue<T> _Queue = new System.Collections.Generic.Queue<T>();
/// <summary></summary>
public void Enqueue(T item)
{
lock (_Locker)
{
_Queue.Enqueue(item);
}
}
/// <summary>Enqueues a collection of items into this queue.</summary>
public virtual void EnqueueRange(IEnumerable<T> items)
{
lock (_Locker)
{
if (items == null)
{
return;
}
foreach (T item in items)
{
_Queue.Enqueue(item);
}
}
}
/// <summary></summary>
public T Dequeue()
{
lock (_Locker)
{
return _Queue.Dequeue();
}
}
/// <summary></summary>
public void Clear()
{
lock (_Locker)
{
_Queue.Clear();
}
}
/// <summary></summary>
public Int32 Count
{
get
{
lock (_Locker)
{
return _Queue.Count;
}
}
}
/// <summary></summary>
public Boolean TryDequeue(out T item)
{
lock (_Locker)
{
if (_Queue.Count > 0)
{
item = _Queue.Dequeue();
return true;
}
else
{
item = default(T);
return false;
}
}
}
}
EDIT 2
I hope this example helps. Remember this is bare bones. Using these basic ideas you can safely harness the power of threads.
public class WorkState
{
private readonly Object _Lock = new Object();
private Int32 _State;
public Int32 GetState()
{
lock (_Lock)
{
return _State;
}
}
public void UpdateState()
{
lock (_Lock)
{
_State++;
}
}
}
public class Worker
{
private readonly WorkState _State;
private readonly Thread _Thread;
private volatile Boolean _KeepWorking;
public Worker(WorkState state)
{
_State = state;
_Thread = new Thread(DoWork);
_KeepWorking = true;
}
public void DoWork()
{
while (_KeepWorking)
{
_State.UpdateState();
}
}
public void StartWorking()
{
_Thread.Start();
}
public void StopWorking()
{
_KeepWorking = false;
}
}
private void Execute()
{
WorkState state = new WorkState();
Worker worker = new Worker(state);
worker.StartWorking();
while (true)
{
if (state.GetState() > 100)
{
worker.StopWorking();
break;
}
}
}
After adding new item to persons
add:
myGrid.DataSource = null;
myGrid.DataSource = persons;
You can simply use EditorTemplates to do that, you need to create a directory named "EditorTemplates" in your controller's view folder and place a seperate view for each of your nested entities (named as entity class name)
Main view :
@model ViewModels.MyViewModels.Theme
@Html.LabelFor(Model.Theme.name)
@Html.EditorFor(Model.Theme.Categories)
Category view (/MyController/EditorTemplates/Category.cshtml) :
@model ViewModels.MyViewModels.Category
@Html.LabelFor(Model.Name)
@Html.EditorFor(Model.Products)
Product view (/MyController/EditorTemplates/Product.cshtml) :
@model ViewModels.MyViewModels.Product
@Html.LabelFor(Model.Name)
@Html.EditorFor(Model.Orders)
and so on
this way Html.EditorFor helper will generate element's names in an ordered manner and therefore you won't have any further problem for retrieving the posted Theme entity as a whole
MSDN has a Developer's Guide to Dependency Injection Using Unity that may be useful.
The Developer's Guide starts with the basics of what dependency injection is, and continues with examples of how to use Unity for dependency injection. As of the February 2014 the Developer's Guide covers Unity 3.0, which was released in April 2013.
lista = list.sort(lista)
This should be
lista.sort()
The .sort()
method is in-place, and returns None. If you want something not in-place, which returns a value, you could use
sorted_list = sorted(lista)
Aside #1: please don't call your lists list
. That clobbers the builtin list type.
Aside #2: I'm not sure what this line is meant to do:
print str("value 1a")+str(" + ")+str("value 2")+str(" = ")+str("value 3a ")+str("value 4")+str("\n")
is it simply
print "value 1a + value 2 = value 3a value 4"
? In other words, I don't know why you're calling str on things which are already str.
Aside #3: sometimes you use print("something")
(Python 3 syntax) and sometimes you use print "something"
(Python 2). The latter would give you a SyntaxError in py3, so you must be running 2.*, in which case you probably don't want to get in the habit or you'll wind up printing tuples, with extra parentheses. I admit that it'll work well enough here, because if there's only one element in the parentheses it's not interpreted as a tuple, but it looks strange to the pythonic eye..
The exception TypeError: 'NoneType' object is not subscriptable
happens because the value of lista
is actually None
. You can reproduce TypeError
that you get in your code if you try this at the Python command line:
None[0]
The reason that lista
gets set to None is because the return value of list.sort()
is None
... it does not return a sorted copy of the original list. Instead, as the documentation points out, the list gets sorted in-place instead of a copy being made (this is for efficiency reasons).
If you do not want to alter the original version you can use
other_list = sorted(lista)
You have to store the timer id of the interval when you start it, you will use this value later to stop it, using the clearInterval
function:
$(function () {
var timerId = 0;
$('textarea').focus(function () {
timerId = setInterval(function () {
// interval function body
}, 1000);
});
$('textarea').blur(function () {
clearInterval(timerId);
});
});
function getInnerSubstring($string,$delim){
// "foo a foo" becomes: array(""," a ","")
$string = explode($delim, $string, 3); // also, we only need 2 items at most
// we check whether the 2nd is set and return it, otherwise we return an empty string
return isset($string[1]) ? $string[1] : '';
}
Example of use:
var_dump(getInnerSubstring('foo Hello world foo','foo'));
// prints: string(13) " Hello world "
If you want to remove surrounding whitespace, use trim
. Example:
var_dump(trim(getInnerSubstring('foo Hello world foo','foo')));
// prints: string(11) "Hello world"
In Case of not considering '0' or 'NULL' in average function. Simply use
AVG(NULLIF(your_column_name,0))
For those of you struggling with getting this done trying every possible answer you can find on SO. Here's what worked for me on a VPS running Windows 2012 R2 :
Place your sql file wherever the bin is for me it is located at C:\Program Files\MySQL\MySQL Server 8.0\bin
Open windows command prompt (cmd)
C:\Program Files\MySQL\MySQL Server 8.0\bin > mysql -u [username] -p
use [database_name]
;C://Program Files//MySQL//MySQL Server 8.0//bin//mydatabasename.sql
It did it for me as everything else had failed. It might help you too.
This originally answered a supplemental question about the wisdom of downloading jQuery versus accessing it via a CDN, which is no longer present...
To answer the thing about Google. I have moved over to accessing JQuery and most other of these sorts of libraries via the corresponding CDN in my sites.
As more people do this means that it's more likely to be cached on user's machines, so my vote goes for good idea.
In the five years since I first offered this, it has become common wisdom.
You cannot invoke JavaScript functions in standard HTML attributes other than onXXX
. Just assign it during window onload.
<script type="text/javascript">
window.onload = function() {
document.myform.action = get_action();
}
function get_action() {
return form_action;
}
</script>
<form name="myform">
...
</form>
You see that I've given the form a name
, so that it's easily accessible in document
.
Alternatively, you can also do it during submit
event:
<script type="text/javascript">
function get_action(form) {
form.action = form_action;
}
</script>
<form onsubmit="get_action(this);">
...
</form>
You've got what rebase
does backwards. git rebase master
does what you're asking for — takes the changes on the current branch (since its divergence from master) and replays them on top of master
, then sets the head of the current branch to be the head of that new history. It doesn't replay the changes from master
on top of the current branch.
Made some modification on Andrew's solution and update the code to Swift 3:
This code now use UITextView as self
and able to inherit its original font, font size and text color
Note: toHexString()
is extension from here
extension UITextView {
func setAttributedStringFromHTML(_ htmlCode: String, completionBlock: @escaping (NSAttributedString?) ->()) {
let inputText = "\(htmlCode)<style>body { font-family: '\((self.font?.fontName)!)'; font-size:\((self.font?.pointSize)!)px; color: \((self.textColor)!.toHexString()); }</style>"
guard let data = inputText.data(using: String.Encoding.utf16) else {
print("Unable to decode data from html string: \(self)")
return completionBlock(nil)
}
DispatchQueue.main.async {
if let attributedString = try? NSAttributedString(data: data, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil) {
self.attributedText = attributedString
completionBlock(attributedString)
} else {
print("Unable to create attributed string from html string: \(self)")
completionBlock(nil)
}
}
}
}
Example usage:
mainTextView.setAttributedStringFromHTML("<i>Hello world!</i>") { _ in }
int Random = (int)(Math.random()*100);
if You need to generate more than one value, then just use for loop for that
for (int i = 1; i <= 10 ; i++)
{
int Random = (int)(Math.random()*100);
System.out.println(Random);
}
If You want to specify a more decent range, like from 10 to 100 ( both are in the range )
so the code would be :
int Random =10 + (int)(Math.random()*(91));
/* int Random = (min.value ) + (int)(Math.random()* ( Max - Min + 1));
*Where min is the smallest value You want to be the smallest number possible to
generate and Max is the biggest possible number to generate*/
Dictionary is a key value pair. Catch Key by
dic["cat"]
and assign its value like
dic["cat"] = 5
import java.util.ArrayList;
import java.util.Iterator;
public class javaClass {
public static void main(String args[]) {
ArrayList<String> alstr = new ArrayList<>();
alstr.add("irfan");
alstr.add("yogesh");
alstr.add("kapil");
alstr.add("rajoria");
for(String str : alstr) {
System.out.println(str);
}
// update value here
alstr.set(3, "Ramveer");
System.out.println("with Iterator");
Iterator<String> itr = alstr.iterator();
while (itr.hasNext()) {
Object obj = itr.next();
System.out.println(obj);
}
}}
[INFO] BUILD SUCCESS
Anyway, it works for me:)
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
Use:
sed -n '1,100p' filename > output.txt
Here, 1 and 100 are the line numbers which you will capture in output.txt
.
Those SQL grants the others are sharing do work. If you're still unable to access the database, it's possible that you just have a firewall restriction for the port. It depends on your server type (and any routers in between) as to how to open up the connection. Open TCP port 3306 inbound, and give it a similar access rule for external machines (all/subnet/single IP/etc.).
No, there isn't any.
The list of comparison operators are listed here.
For your requirement the best option would be regular expressions.
EDIT:
As pointed out in the comments, this is a much simpler version:
Arrays.stream(stringArray).mapToInt(Integer::parseInt).toArray()
This way we can skip the whole conversion to and from a list.
I found another one line solution, but it's still pretty slow (takes about 100 times longer than a for cycle - tested on an array of 6000 0's)
String[] stringArray = ...
int[] out= Arrays.asList(stringArray).stream().map(Integer::parseInt).mapToInt(i->i).toArray();
What this does:
Now there are so many ways to apply font one of easiest way is like this, 1) Right-click the res folder go to New > Android resource directory.
2) From Resource type list, select font, and then click OK.
3) Put your font files in the font folder.
I was facing this same problem. Let me tell you how I solved it and achieved everything you all seem to be wanting.
Requirements:
In my service, (I'm using Asp.net Web API), I have a controller returning an "HttpResponseMessage". I add a "StreamContent" to the response.Content field, set the headers to "application/octet-stream" and add the data as an attachment. I even give it a name "myAwesomeFile.xlsx"
response = Request.CreateResponse(HttpStatusCode.OK);
response.Content = new StreamContent(memStream);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") { FileName = "myAwesomeFile.xlsx" };
Now here's the trick ;)
I am storing the base URL in a text file that I read into a variable in an Angular Value called "apiRoot". I do this by declaring it and then setting it on the "run" function of the Module, like so:
app.value('apiRoot', { url: '' });
app.run(function ($http, apiRoot) {
$http.get('/api.txt').success(function (data) {
apiRoot.url = data;
});
});
That way I can set the URL in a text file on the server and not worry about "blowing it away" in an upload. (You can always change it later for security reasons - but this takes the frustration out of development ;) )
And NOW the magic:
All I'm doing is creating a link with a URL that directly hits my service endpoint and target's a "_blank".
<a ng-href="{{vm.getFileHref(FileId)}}" target="_blank" class="btn btn-default"> Excel File</a>
the secret sauce is the function that sets the href. You ready for this?
vm.getFileHref = function (Id) {
return apiRoot.url + "/datafiles/excel/" + Id;
}
Yep, that's it. ;)
Even in a situation where you are iterating over many records that have files to download, you simply feed the Id to the function and the function generates the url to the service endpoint that delivers the file.
Hope this helps!
In a nutshell :
-> Git Merge: It will simply merge your local changes and remote changes, and that will create another commit history record
-> Git Rebase: It will put your changes above all new remote changes, and rewrite commit history, so your commit history will be much cleaner than git merge. Rebase is a destructive operation. That means, if you do not apply it correctly, you could lose committed work and/or break the consistency of other developer's repositories.
My work around for this problem has always been to use the principle that single hash temp tables are in scope to any called procs. So, I have an option switch in the proc parameters (default set to off). If this is switched on, the called proc will insert the results into the temp table created in the calling proc. I think in the past I have taken it a step further and put some code in the called proc to check if the single hash table exists in scope, if it does then insert the code, otherwise return the result set. Seems to work well - best way of passing large data sets between procs.
If you're trying to use this on Cygwin, then you need to follow the instructions in this answer. (It's a problem how Cygwin treats Windows symlinks.)
If you want to emulate ___.new()
syntax you can do something along the lines of:
type Thing struct {
Name string
Num int
}
type Constructor_Thing struct {}
func (c CThing) new(<<CONSTRUCTOR ARGS>>) Thing {
var thing Thing
//initiate thing from constructor args
return thing
}
var cThing CThing
func main(){
var myThing Thing
myThing = cThing.new(<<CONSTRUCTOR ARGS>>)
//...
}
Granted, it is a shame that Thing.new()
cannot be implemented without CThing.new()
also being implemented (iirc) which is a bit of a shame...
In Designer, activate the centralWidget and assign a layout, e.g. horizontal or vertical layout. Then your QFormLayout will automatically resize.
Always make sure, that all widgets have a layout! Otherwise, automatic resizing will break with that widget!
Controls insist on being too large, and won't resize, in QtDesigner
>>> s = 'abcd'
>>> len(s)
4
Use ast.literal_eval
:
>>> import ast
>>> ast.literal_eval('True')
True
>>> ast.literal_eval('False')
False
Why is flag always converting to True?
Non-empty strings are always True in Python.
Related: Truth Value Testing
If NumPy is an option, then:
>>> import StringIO
>>> import numpy as np
>>> s = 'True - False - True'
>>> c = StringIO.StringIO(s)
>>> np.genfromtxt(c, delimiter='-', autostrip=True, dtype=None) #or dtype=bool
array([ True, False, True], dtype=bool)
If you want add a day (24 hours) to current datetime you can add milliseconds like this:
new Date(Date.now() + ( 3600 * 1000 * 24))
I updated my requirements.txt
to have
psycopg2==2.7.4 --no-binary=psycopg2
So that it build binaries on source
SCREEN:
NOTE: screen is actually not able to send hex, as far as I know. To do that, use echo
or printf
I was using the suggestions in this post to write to a serial port, then using the info from another post to read from the port, with mixed results. I found that using screen is an "easier" solution, since it opens a terminal session directly with that port. (I put easier in quotes, because screen has a really weird interface, IMO, and takes some further reading to figure it out.)
You can issue this command to open a screen session, then anything you type will be sent to the port, plus the return values will be printed below it:
screen /dev/ttyS0 19200,cs8
(Change the above to fit your needs for speed, parity, stop bits, etc.) I realize screen isn't the "linux command line" as the post specifically asks for, but I think it's in the same spirit. Plus, you don't have to type echo and quotes every time.
ECHO:
Follow praetorian droid's answer. HOWEVER, this didn't work for me until I also used the cat command (cat < /dev/ttyS0
) while I was sending the echo command.
PRINTF:
I found that one can also use printf's '%x' command:
c="\x"$(printf '%x' 0x12)
printf $c >> $SERIAL_COMM_PORT
Again, for printf, start cat < /dev/ttyS0
before sending the command.
You can try using this code:
protected ServiceConnection mServerConn = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder binder) {
Log.d(LOG_TAG, "onServiceConnected");
}
@Override
public void onServiceDisconnected(ComponentName name) {
Log.d(LOG_TAG, "onServiceDisconnected");
}
}
public void start() {
// mContext is defined upper in code, I think it is not necessary to explain what is it
mContext.bindService(intent, mServerConn, Context.BIND_AUTO_CREATE);
mContext.startService(intent);
}
public void stop() {
mContext.stopService(new Intent(mContext, ServiceRemote.class));
mContext.unbindService(mServerConn);
}
From JsonProperty javadoc,
Defines name of the logical property, i.e. JSON object field name to use for the property. If value is empty String (which is the default), will try to use name of the field that is annotated.
In iOS9 UIPopoverController is depreciated. So can use the below code for Objective-C version above iOS9.x,
- (IBAction)onclickPopover:(id)sender {
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];
UIViewController *viewController = [sb instantiateViewControllerWithIdentifier:@"popover"];
viewController.modalPresentationStyle = UIModalPresentationPopover;
viewController.popoverPresentationController.sourceView = self.popOverBtn;
viewController.popoverPresentationController.sourceRect = self.popOverBtn.bounds;
viewController.popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionAny;
[self presentViewController:viewController animated:YES completion:nil]; }
You can query the ALL_OBJECTS view:
select owner
, object_name
, object_type
from ALL_OBJECTS
where object_name = 'FOO'
To find synonyms:
select *
from ALL_SYNONYMS
where synonym_name = 'FOO'
Just to clarify, if a user user's SQL statement references an object name with no schema qualification (e.g. 'FOO'), Oracle FIRST checks the user's schema for an object of that name (including synonyms in that user's schema). If Oracle can't resolve the reference from the user's schema, Oracle then checks for a public synonym.
If you are looking specifically for constraints on a particular table_name:
select c.*
from all_constraints c
where c.table_name = 'FOO'
union all
select cs.*
from all_constraints cs
join all_synonyms s
on (s.table_name = cs.table_name
and s.table_owner = cs.owner
and s.synonym_name = 'FOO'
)
HTH
-- addendum:
If your user is granted access to the DBA_ views (e.g. if your user has been granted SELECT_CATALOG_ROLE), you can substitute 'DBA_
' in place of 'ALL_
' in the preceding SQL examples. The ALL_x
views only show objects which you have been granted privileges. The DBA_x
views will show all database objects, whether you have privileges on them or not.
This is because you define your "doc" variable outside of your click event. The first time you click the button the doc variable contains a new jsPDF object. But when you click for a second time, this variable can't be used in the same way anymore. As it is already defined and used the previous time.
change it to:
$(function () {
var specialElementHandlers = {
'#editor': function (element,renderer) {
return true;
}
};
$('#cmd').click(function () {
var doc = new jsPDF();
doc.fromHTML(
$('#target').html(), 15, 15,
{ 'width': 170, 'elementHandlers': specialElementHandlers },
function(){ doc.save('sample-file.pdf'); }
);
});
});
and it will work.
Here is the best solution for this. (ANGULAR All Version)
Addressing solution: To set a default value for @Input variable. If no value passed to that input variable then It will take the default value.
I have provided solution for this kind of similar question. You can find the full solution from here
export class CarComponent implements OnInit {
private _defaultCar: car = {
// default isCar is true
isCar: true,
// default wheels will be 4
wheels: 4
};
@Input() newCar: car = {};
constructor() {}
ngOnInit(): void {
// this will concate both the objects and the object declared later (ie.. ...this.newCar )
// will overwrite the default value. ONLY AND ONLY IF DEFAULT VALUE IS PRESENT
this.newCar = { ...this._defaultCar, ...this.newCar };
// console.log(this.newCar);
}
}
if (args[i] == "&")
Ok, let's disect what this does.
args is an array of pointers. So, here you are comparing args[i]
(a pointer) to "&"
(also a pointer). Well, the only way this will every be true is if somewhere you have args[i]="&"
and even then, "&"
is not guaranteed to point to the same place everywhere.
I believe what you are actually looking for is either strcmp
to compare the entire string or your wanting to do if (*args[i] == '&')
to compare the first character of the args[i]
string to the &
character
These are extended operations (e.g., sort, reverse) for one dimensional and two dimensional arrays in Twig framework:
{% for key, value in array_one_dimension %}
<div>{{ key }}</div>
<div>{{ value }}</div>
{% endfor %}
{% for key, value in array_one_dimension|keys|sort %}
<div>{{ key }}</div>
<div>{{ value }}</div>
{% endfor %}
{% for key, value in array_one_dimension|keys|sort|reverse %}
<div>{{ key }}</div>
<div>{{ value }}</div>
{% endfor %}
{% for key_a, value_a in array_two_dimension %}
{% for key_b, value_b in array_two_dimension[key_a] %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
{% for key_a, value_a in array_two_dimension|keys|sort %}
{% for key_b, value_b in array_two_dimension[key_a] %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
{% for key_a, value_a in array_two_dimension|keys|sort %}
{% for key_b, value_b in array_two_dimension[key_a]|keys|sort %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
{% for key_a, value_a in array_two_dimension|keys|sort %}
{% for key_b, value_b in array_two_dimension[key_a]|keys|sort|reverse %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
{% for key_a, value_a in array_two_dimension|keys|sort|reverse %}
{% for key_b, value_b in array_two_dimension[key_a]|keys|sort %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
{% for key_a, value_a in array_two_dimension|keys|sort|reverse %}
{% for key_b, value_b in array_two_dimension[key_a]|keys|sort|reverse %}
<div>{{ key_b }}</div>
<div>{{ value_b }}</div>
{% endfor %}
{% endfor %}
If you want to use forward slashes in the format, the you need to escape with back slashes in the regex:
var pattern =/^([0-9]{2})\/([0-9]{2})\/([0-9]{4})$/;
Unless you can get PHP to label that element with a class you are better to use jQuery.
jQuery(document).ready(function () {
$count = jQuery("ul li").size() - 1;
alert($count);
jQuery("ul li:nth-child("+$count+")").css("color","red");
});
All said in the other responses are valid but the use cases are not completely valid IMHO. If one checks out Guava and especially the collections related stuff, the same has been done with static methods. E.g. Lists.newArrayList() which allows you to write
List<String> names = Lists.newArrayList();
or with static import
import static com.google.common.collect.Lists.*;
...
List<String> names = newArrayList();
List<String> names = newArrayList("one", "two", "three");
Guava has other very powerful features like this and I actually can't think of much uses for the <>.
It would have been more useful if they went for making the diamond operator behavior the default, that is, the type is inferenced from the left side of the expression or if the type of the left side was inferenced from the right side. The latter is what happens in Scala.
For me follwing steps helped.
It seems to be bug of Android Studio 3.4/3.5 and it was "fixed" by disabling:
File ? Settings ? Experimental ? Gradle ? Only sync the active variant
Here you go, Python documentation on old string formatting. tutorial -> 7.1.1. Old String Formatting -> "More information can be found in the [link] section".
Note that you should start using the new string formatting when possible.
You are repeating the y,m,d
.
Instead of
gmdate('yyyy-mm-dd hh:mm:ss \G\M\T', time());
You should use it like
gmdate('Y-m-d h:m:s \G\M\T', time());
I found This simpler yet powerful tutorial which uses the fileReader
Object. It simply creates an img element and, using the fileReader object, assigns its source attribute as the value of the form input
function previewFile() {_x000D_
var preview = document.querySelector('img');_x000D_
var file = document.querySelector('input[type=file]').files[0];_x000D_
var reader = new FileReader();_x000D_
_x000D_
reader.onloadend = function () {_x000D_
preview.src = reader.result;_x000D_
}_x000D_
_x000D_
if (file) {_x000D_
reader.readAsDataURL(file);_x000D_
} else {_x000D_
preview.src = "";_x000D_
}_x000D_
}
_x000D_
<input type="file" onchange="previewFile()"><br>_x000D_
<img src="" height="200" alt="Image preview...">
_x000D_
Well, I am digressing from the question, but I had a similar need today and though I couldn't find the ID from the client using Javascript, I did the following.
On the server side: -
<div style="display:none;visibility:hidden" id="uip"><%= Request.UserHostAddress %></div>
Using Javascript
var ip = $get("uip").innerHTML;
I am using ASP.Net Ajax, but you can use getElementById instead of $get().
What's happening is, I've got a hidden div element on the page with the user's IP rendered from the server. Than in Javascript I just load that value.
This might be helpful to some people with a similar requirement like yours (like me while I hadn't figure this out).
Cheers!
I think you want to cast your dt
to a date
and fix the format of your date literal:
SELECT *
FROM table
WHERE dt::date = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD
Or the standard version:
SELECT *
FROM table
WHERE CAST(dt AS DATE) = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD
The extract
function doesn't understand "date" and it returns a number.
After you initialize your MediaPlayer
and SeekBar
, you can do this :
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
mSeekBar.setProgress(mMediaPlayer.getCurrentPosition());
}
},0,1000);
This updates SeekBar
every second(1000ms)
And for updating MediaPlayer
, if user drag SeekBar
, you must add OnSeekBarChangeListener
to your SeekBar
:
mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
mMediaPlayer.seekTo(i);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
HAPPY CODING!!!
The post needs an update after the links
option is deprecated.
Basically, links
is no longer needed because its main purpose, making container reachable by another by adding environment variable, is included implicitly with network
. When containers are placed in the same network, they are reachable by each other using their container name and other alias as host.
For docker run
, --link
is also deprecated and should be replaced by a custom network.
docker network create mynet
docker run -d --net mynet --name container1 my_image
docker run -it --net mynet --name container1 another_image
depends_on
expresses start order (and implicitly image pulling order), which was a good side effect of links
.
Align is the way to go is you have only one child.
If you have more, consider doing something like this :
return new Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
//your elements here
],
);
Once you read what What Every Computer Scientist Should Know About Floating-Point Arithmetic you could use the .toFixed()
function:
var result = parseFloat('2.3') + parseFloat('2.4');
alert(result.toFixed(2));?
Lists of bytes are subscriptable (at least in Python 3.6). This way you can retrieve the decimal value of each byte individually.
>>> intlist = [64, 4, 26, 163, 255]
>>> bytelist = bytes(intlist) # b'@x04\x1a\xa3\xff'
>>> for b in bytelist:
... print(b) # 64 4 26 163 255
>>> [b for b in bytelist] # [64, 4, 26, 163, 255]
>>> bytelist[2] # 26
MySQL recommends using indexes for a variety of reasons including elimination of rows between conditions: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 30 DAY)
and you have no other index in the condition, MySQL will have to do a full table scan on every query. I'm not sure how many rows are generated in 30 days, but as long as it's less than about 1/3 of the total rows it will be more efficient to use an index on the column.
Your question about creating an efficient database is very broad. I'd say to just make sure that it's normalized and all appropriate columns are indexed (i.e. ones used in joins and where clauses).
html code:
<!DOCTYPE html>
<html>
<head><title>this is your web page</title></head>
<body>
<div class = "nicecolor"></div>
</body>
</html>
css code:
.nicecolor {
color:red;
width:200px;
height:200px;
}
.nicecolor:hover {
color:blue;
}
and thats how youll change your div from red to blue by hovering over it.
Use \D
to match non-digit characters.
preg_replace('~\D~', '', $str);
If you need to keep only 2 decimal places (i.e. cut off all the rest of decimal digits):
decimal val = 3.14789m;
decimal result = Math.Floor(val * 100) / 100; // result = 3.14
If you need to keep only 3 decimal places:
decimal val = 3.14789m;
decimal result = Math.Floor(val * 1000) / 1000; // result = 3.147
Alternatively if you want to persist in using the DocumentType
class.
Then you could just add the following annotation on top of your DocumentType class.
@XmlRootElement(name="document")
Note: the String value "document"
refers to the name of the root tag of the xml message.
That's something I'm not sure that you can change through the HTML of the webpage itself, it's a client-side setting to tell their browser if they want security to be high. Most other browsers will not do this but from what I'm aware of this is not possible to stop unless the user disables the feature.
Does it still do what you want it to do after you click on 'Allow'? If so then it shouldn't be too much of a problem
I am coming from an Electron environment, where I need IPC communication between a renderer process and the main process. The renderer process sits in an HTML file between script tags and generates the same error.
The line
const {ipcRenderer} = require('electron')
throws the Uncaught ReferenceError: require is not defined
I was able to work around that by specifying Node.js integration as true when the browser window (where this HTML file is embedded) was originally created in the main process.
function createAddItemWindow() {
// Create a new window
addItemWindown = new BrowserWindow({
width: 300,
height: 200,
title: 'Add Item',
// The lines below solved the issue
webPreferences: {
nodeIntegration: true
}
})}
That solved the issue for me. The solution was proposed here.
This happened to me when I was trying to push the develop branch (I am using git flow). Someone had push updates to master. to fix it I did:
git co master
git pull
Which fetched those changes. Then,
git co develop
git pull
Which didn't do anything. I think the develop branch already pushed despite the error message. Everything is up to date now and no errors.
You should always use the direct .attribute
form (but see the quirksmode link below) if you want programmatic access in JavaScript. It should handle the different types of attributes (think "onload") correctly.
Use getAttribute
/setAttribute
when you wish to deal with the DOM as it is (e.g. literal text only). Different browsers confuse the two. See Quirks modes: attribute (in)compatibility.
Using sprintf
was already proposed by ldueck in a comment, but I think this is worth being an answer:
f(i) = sprintf('f%d', i);
This is in my opinion the most readable solution and also gives some nice flexibility (i.e. when you want to round a float value, use something like %.2f
).
The &&
function is not vectorized. You need the &
function:
EUR <- PCs[which(PCs$V13 < 9 & PCs$V13 > 3), ]
www.phplivedocx.org is a SOAP based service that means that you always need to be online for testing the Files also does not have enough examples for its use . Strangely I found only after 2 days of downloading (requires additionaly zend framework too) that its a SOAP based program(cursed me !!!)...I think without COM its just not possible on a Linux server and the only idea is to change the doc file in another usable file which PHP can parse...
here is what I would do in order to debug and get the php errors into javascript console.log after an ajax call:
$('#ChangePermission').click(function () {
$.ajax({
url: 'change_permission.php',
type: 'POST',
data: {
'user': document.GetElementById("user").value,
'perm': document.GetElementById("perm").value
},
success: function (data) {
console.log(data);
},
error: function (data) {
console.log(data);
}
});
});
on the php side I would start by asking for all error returned to string concat and echo as a json encoded response that will includes php error messages as well if any.
<?php
error_reporting(E_ALL);
require_once(functions . php);
$result = "true";
$DBH = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);
$DBH->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$STH = $DBH->prepare("INSERT INTO people ( username, permissions ) values (?, ?)");
if (isset($_POST["user"]) && isset($_POST["perm"])) {
$STH->bindParam(1, $_POST["user"], PDO::PARAM_STR);
$STH->bindParam(2, $_POST["perm"], PDO::PARAM_STR);
}
try {
$STH->execute();
} catch (PDOException $e) {
$result .= $e->getMessage;
}
echo json_encode($result);
?>
When the button is clicked, get the value of the input and use it to create an image element which is appended to the body (or anywhere else) :
<html>
<body>
<form>
<input type="text" id="imagename" value="" />
<input type="button" id="btn" value="GO" />
</form>
<script type="text/javascript">
document.getElementById('btn').onclick = function() {
var val = document.getElementById('imagename').value,
src = 'http://webpage.com/images/' + val +'.png',
img = document.createElement('img');
img.src = src;
document.body.appendChild(img);
}
</script>
</body>
</html>
the same in jQuery:
$('#btn').on('click', function() {
var img = $('<img />', {src : 'http://webpage.com/images/' + $('#imagename').val() +'.png'});
img.appendTo('body');
});
It's not the best answer, but its also an option: since you can concatenate multiple expressions, but just the last one is rendered, you can finish your expression with ""
and your variable will be hidden.
So, you could define the variable with:
{{f = forecast[day.iso]; ""}}
It seems you require the following plugin: https://github.com/yearofmoo/AngularJS-Scope.onReady
It basically gives you the functionality to run your directive code after the your scope or data is loaded i.e. $scope.$whenReady
see here
The consumable media types of the mapped request, narrowing the primary mapping.
the producer is used to narrow the primary mapping, you send request should specify the exact header to match it.
For php 5.3+
you can use the SplFileInfo()
class
$spl = new SplFileInfo($filename);
print_r($spl->getExtension()); //gives extension
Also since you are checking extension for file uploads, I highly recommend using the mime type instead..
For php 5.3+
use the finfo
class
$finfo = new finfo(FILEINFO_MIME);
print_r($finfo->buffer(file_get_contents($file name));
You can use this:
function isDigit(n) {
return Boolean([true, true, true, true, true, true, true, true, true, true][n]);
}
Here, I compared it to the accepted method: http://jsperf.com/isdigittest/5 . I didn't expect much, so I was pretty suprised, when I found out that accepted method was much slower.
Interesting thing is, that while accepted method is faster correct input (eg. '5') and slower for incorrect (eg. 'a'), my method is exact opposite (fast for incorrect and slower for correct).
Still, in worst case, my method is 2 times faster than accepted solution for correct input and over 5 times faster for incorrect input.
Normally that error occurs when a }
was missed somewhere in the code, for example:
void mi_start_curr_serv(void){
#if 0
//stmt
#endif
would fail with this error due to the missing }
at the end of the function. The code you posted doesn't have this error, so it is likely coming from some other part of your source.
Don't forget the padding and margins...
jQuery.fn.slideLeftHide = function(speed, callback) {
this.animate({
width: "hide",
paddingLeft: "hide",
paddingRight: "hide",
marginLeft: "hide",
marginRight: "hide"
}, speed, callback);
}
jQuery.fn.slideLeftShow = function(speed, callback) {
this.animate({
width: "show",
paddingLeft: "show",
paddingRight: "show",
marginLeft: "show",
marginRight: "show"
}, speed, callback);
}
With the speed/callback arguments added, it's a complete drop-in replacement for slideUp()
and slideDown()
.
Make an empty file called __init__.py
in the same directory as the files. That will signify to Python that it's "ok to import from this directory".
Then just do...
from user import User
from dir import Dir
The same holds true if the files are in a subdirectory - put an __init__.py
in the subdirectory as well, and then use regular import statements, with dot notation. For each level of directory, you need to add to the import path.
bin/
main.py
classes/
user.py
dir.py
So if the directory was named "classes", then you'd do this:
from classes.user import User
from classes.dir import Dir
Same as previous, but prefix the module name with a .
if not using a subdirectory:
from .user import User
from .dir import Dir
For Express v4+
install body-parser from the npm.
$ npm install body-parser
https://www.npmjs.org/package/body-parser#installation
var express = require('express')
var bodyParser = require('body-parser')
var app = express()
// parse application/json
app.use(bodyParser.json())
app.use(function (req, res, next) {
console.log(req.body) // populated!
next()
})
Using Concat on the group by will work
SELECT clients.id, clients.name, portfolios.id, SUM ( portfolios.portfolio + portfolios.cash ) AS total
FROM clients, portfolios
WHERE clients.id = portfolios.client_id
GROUP BY CONCAT(portfolios.id, "-", clients.id)
ORDER BY total DESC
LIMIT 30
See help(Sys.sleep)
.
For example, from ?Sys.sleep
testit <- function(x)
{
p1 <- proc.time()
Sys.sleep(x)
proc.time() - p1 # The cpu usage should be negligible
}
testit(3.7)
Yielding
> testit(3.7)
user system elapsed
0.000 0.000 3.704
Also try dojo.number which has built-in localization support. It is a much closer analog to Java's NumberFormat/DecimalFormat
You must have either disabled
, froze
or uninstalled
FaceProvider in settings>applications>all
This will only happen if it's frozen
, either uninstall
it, or enable
it.
With Swift 5, you may choose one of the three examples shown below in order to solve your problem.
String
's init(format:_:)
initializerFoundation
provides Swift String
a init(format:_:)
initializer. init(format:_:)
has the following declaration:
init(format: String, _ arguments: CVarArg...)
Returns a
String
object initialized by using a given format string as a template into which the remaining argument values are substituted.
The following Playground code shows how to create a String
formatted from Int
with at least two integer digits by using init(format:_:)
:
import Foundation
let string0 = String(format: "%02d", 0) // returns "00"
let string1 = String(format: "%02d", 1) // returns "01"
let string2 = String(format: "%02d", 10) // returns "10"
let string3 = String(format: "%02d", 100) // returns "100"
String
's init(format:arguments:)
initializerFoundation
provides Swift String
a init(format:arguments:)
initializer. init(format:arguments:)
has the following declaration:
init(format: String, arguments: [CVarArg])
Returns a
String
object initialized by using a given format string as a template into which the remaining argument values are substituted according to the user’s default locale.
The following Playground code shows how to create a String
formatted from Int
with at least two integer digits by using init(format:arguments:)
:
import Foundation
let string0 = String(format: "%02d", arguments: [0]) // returns "00"
let string1 = String(format: "%02d", arguments: [1]) // returns "01"
let string2 = String(format: "%02d", arguments: [10]) // returns "10"
let string3 = String(format: "%02d", arguments: [100]) // returns "100"
NumberFormatter
Foundation provides NumberFormatter
. Apple states about it:
Instances of
NSNumberFormatter
format the textual representation of cells that containNSNumber
objects and convert textual representations of numeric values intoNSNumber
objects. The representation encompasses integers, floats, and doubles; floats and doubles can be formatted to a specified decimal position.
The following Playground code shows how to create a NumberFormatter
that returns String?
from a Int
with at least two integer digits:
import Foundation
let formatter = NumberFormatter()
formatter.minimumIntegerDigits = 2
let optionalString0 = formatter.string(from: 0) // returns Optional("00")
let optionalString1 = formatter.string(from: 1) // returns Optional("01")
let optionalString2 = formatter.string(from: 10) // returns Optional("10")
let optionalString3 = formatter.string(from: 100) // returns Optional("100")
The culprit was russian account password.
Accidentally set up it (wrong keyboard layout). Everything was working, so didnt bother changing it.
Out of despair changed it now and it worked.
If someone looked up this thread and its not a solution for you - check out comments under the question and steps i described in question, they might be useful to you.
double jhon = 3;
double[] numbers = new double[3];
for (int i = 0; i < 3; i++)
{
numbers[i] = double.Parse(Console.ReadLine());
}
Console.WriteLine("\n");
Array.Sort(numbers);
for (int i = 0; i < 3; i++)
{
Console.WriteLine(numbers[i]);
}
Console.ReadLine();
\includegraphics<1>{A}%
\includegraphics<2>{B}%
\includegraphics<3>{C}%
The % is important. This will keep all the images fixed.
I got best solution for international phone number validation and selecting country code below library is justified me Best library for all custom UI and functionality CountryCodePickerProject
A Java String
is an Object
. (String
extends Object
.)
So you can get an Object
reference via assignment/initialisation:
String a = "abc";
Object b = a;
In addition, notice that if your mongo shell client fails to connect correctly to the mongod
instance, you can receive such "Permission Denied" errors.
Make sure that your client opens a connection by checking the connection port, but also that the port you are using in mongod
is not in use. You can set a different port by using the --port <port>
parameter in both the shell and the process.
select Name, Value, AnotherColumn
from out_pumptable
where Value =
(
select Max(Value)
from out_pumptable as f where f.Name=out_pumptable.Name
)
group by Name, Value, AnotherColumn
Try like this, It works.
For another one-liner solution:
def count_letters(word): return len(filter(lambda x: x not in " ", word))
This works by using the filter function, which lets you pick the elements of a list that return true when passed to a boolean-valued function that you pass as the first argument. I'm using a lambda function to make a quick, throwaway function for that purpose.
>>> count_letters("This is a test")
11
You could easily extend this to exclude any selection of characters you like:
def count_letters(word, exclude): return len(filter(lambda x: x not in exclude, word))
>>> count_letters ("This is a test", "aeiou ")
7
Edit: However, you wanted to get your own code to work, so here are some thoughts. The first problem is that you weren't setting a list for the Counter object to count. However, since you're looking for the total number of letters, you need to join the words back together again rather than counting each word individually. Looping to add up the number of each letter isn't really necessary because you can pull out the list of values and use "sum" to add them.
Here's a version that's as close to your code as I could make it, without the loop:
from collections import Counter
import string
def count_letters(word):
wordsList = string.split(word)
count = Counter("".join(wordsList))
return sum(dict(count).values())
word = "The grey old fox is an idiot"
print count_letters(word)
Edit: In response to a comment asking why not to use a for loop, it's because it's not necessary, and in many cases using the many implicit ways to perform repetitive tasks in Python can be faster, simpler to read, and more memory-efficient.
For example, I could have written
joined_words = []
for curr_word in wordsList:
joined_words.extend(curr_word)
count = Counter(joined_words)
but in doing this I wind up allocating an extra array and executing a loop through the Python interpreter that my solution:
count = Counter("".join(wordsList))
would execute in a chunk of optimized, compiled C code. My solution isn't the only way to simplify that loop, but it's one way.
zsh has a builtin command emulate
which can emulate different shells by setting the appropriate options, although csh will never be fully emulated.
emulate bash
perform commands
emulate -R zsh
The -R flag restores all the options to their default values for that shell.
See: zsh manual
Aaron Bennet's solution is working perfectly for me, but i had to remove this line from his code --> white-space: -pre-wrap;
beacause it was giving an error, so the final working code is the following:
.wordwrap {
white-space: pre-wrap; /* CSS3 */
white-space: -moz-pre-wrap; /* Firefox */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* IE */
}
thank you very much
I will give simple steps to add favicon :-)
logo.png
Change logo.png
to favicon.ico
Note : when you save it is
favicon.ico
make sure it's notfavicon.ico.png
It might take some time to update
change icon size in manifest.json if you can't wait
ruby on rails notes has a very nice blogpost about commenting in erb-files
the short version is
to comment a single line use
<%# commented line %>
to comment a whole block use a if false
to surrond your code like this
<% if false %>
code to comment
<% end %>
There is Super Sed an enhanced version of sed. For Windows this is a standalone .exe, intended for running from the command line.
I do not think that is possible you have to set all the values individualling (like the first example you provided.)
The Second example you gave, will only Initialize the last varuable to "" and not the others.
Mostly the image is not displayed because you URL contains spaces. In your case you almost did everything correct. Except one thing - you have not added single quotes like you do if you specify background-image in css I.e.
.bg-img { \/ \/
background-image: url('http://...');
}
To do so escape quot character in HTML via \'
\/ \/
<div [ngStyle]="{'background-image': 'url(\''+ item.color.catalogImageLink + '\')'}"></div>
Take a look at this recipe on GitHub: https://help.github.com/articles/importing-an-external-git-repository
I tried a number of methods before discovering git push --mirror
.
Worked like a charm!
Maven or Ant? is a very similar question to this one, which should help you answer your questions.
What is Maven? on the official site.
edit: For a new/greenfield project, I'd recommend using Maven: "convention over configuration" will save you a decent chunk of time in writing and setting up build and deployment scripts. When you use ant, the build script tends to grow over time in length and complexity. For existing projects, it can be hard to shoehorn their configuration/layout into the Maven system.
to get different sizes, you can use the type parameter:
You can specify the picture size you want with the type argument, which should be one of square (50x50), small (50 pixels wide, variable height), and large (about 200 pixels wide, variable height): http://graph.facebook.com/squall3d/picture?type=large.
Using GPS with latitude and longitude, we can get the Country code.
If we use telephony, it won't work if we are not using sim card and in locale, based on language, it show the country code in wrong way.
MainActivity.java:
GPSTracker gpsTrack;
public static double latitude = 0;
public static double longitude = 0;
gpsTrack = new GPSTracker(TabHomeActivity.this);
if (gpsTrack.canGetLocation()) {
latitude = gpsParty.getLatitude();
longitude = gpsParty.getLongitude();
Log.e("GPSLat", "" + latitude);
Log.e("GPSLong", "" + longitude);
} else {
gpsTrack.showSettingsAlert();
Log.e("ShowAlert", "ShowAlert");
}
countryCode = getAddress(TabHomeActivity.this, latitude, longitude);
Log.e("countryCode", ""+countryCode);
public String getAddress(Context ctx, double latitude, double longitude) {
String region_code = null;
try {
Geocoder geocoder = new Geocoder(ctx, Locale.getDefault());
List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
if (addresses.size() > 0) {
Address address = addresses.get(0);
region_code = address.getCountryCode();
}
} catch (IOException e) {
Log.e("tag", e.getMessage());
}
return region_code;
}
GPSTracker.java:
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
* */
public void stopUsingGPS(){
if(locationManager != null){
locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
* */
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
* @return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
public void showSettingsAlert() {
final AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setMessage("Your GPS seems to be disabled, do you want to enable it?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
mContext.startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public IBinder onBind(Intent arg0) {
return null;
}
}
Log:
E/countryCode: IN
Edit: Use Fused Location Provider to get latitude and longitude update for better result.
I am using large data sets exported to a python file in the form
XVals1 = [.........]
XVals2 = [.........]
Each list is of identical length. I use
>>> a1 = np.array(SV.XVals1)
>>> a2 = np.array(SV.XVals2)
Then
>>> A = np.matrix([a1,a2])
Unless things have changed, you're better off with
public static ByteBuffer str_to_bb(String msg, Charset charset){
return ByteBuffer.wrap(msg.getBytes(charset));
}
public static String bb_to_str(ByteBuffer buffer, Charset charset){
byte[] bytes;
if(buffer.hasArray()) {
bytes = buffer.array();
} else {
bytes = new byte[buffer.remaining()];
buffer.get(bytes);
}
return new String(bytes, charset);
}
Usually buffer.hasArray() will be either always true or always false depending on your use case. In practice, unless you really want it to work under any circumstances, it's safe to optimize away the branch you don't need.
There is another solution for this.
Consider the quotes as part of the fields delimiter, by editing the fmt file.
You can check this out for more information:
An extract of the link above:
The only way to remove the quotation marks would be to modify the column delimiters specified during the import operation. The only drawback here is that if you inspect the data to be inserted, you will very quickly realize that the column delimiters are different for each column (Delimiters highlighted above).
So to specify different column delimiters for each column, you would need to use a format file if you plan to use Bulk Insert or BCP. If you generate a format file for the above table structure, it would be as follows:
9.0
3
1 SQLCHAR 0 5 "\t" 1 FName SQL_Latin1_General_CP1_CI_AS
2 SQLCHAR 0 5 "\t" 2 LName SQL_Latin1_General_CP1_CI_AS
3 SQLCHAR 0 50 "\r\n" 3 Company SQL_Latin1_General_CP1_CI_AS
Modify the format file to represent the correct column delimiters for each column. The new format file to be used will look like this:
9.0
4
1 SQLCHAR 0 0 "\"" 0 FIRST_QUOTE SQL_Latin1_General_CP1_CI_AS
2 SQLCHAR 0 5 "\",\"" 1 FNAME SQL_Latin1_General_CP1_CI_AS
3 SQLCHAR 0 5 "\",\"" 2 LNAME SQL_Latin1_General_CP1_CI_AS
4 SQLCHAR 0 50 "\"\r\n" 3 COMPANY SQL_Latin1_General_CP1_CI_AS
Press Ctrl and use the mouse wheel to zoom In or Out.
You can use the Django-Truncate library to delete all data of a table without destroying the table structure.
Example:
pip install django-truncate
settings.py
file:INSTALLED_APPS = [
...
'django_truncate',
]
python manage.py truncate --apps app_name --models table_name
Yes, since it's a dynamically type language ;)
Read this for reference: PEP 257
ok, you may use substr in correlation to instr to find the starting position of your string
select
dbms_lob.substr(
product_details,
length('NEW.PRODUCT_NO'), --amount
dbms_lob.instr(product_details,'NEW.PRODUCT_NO') --offset
)
from my_table
where dbms_lob.instr(product_details,'NEW.PRODUCT_NO')>=1;
more example
I have configus.yml with flows files
"pattern":
- _(\d{14})_
"datetime_string":
- "%m%d%Y%H%M%f"
in python code I use
data_time_real_file=re.findall(r""+flows[flow]["pattern"][0]+"", latest_file)
I think the problem is given in the error message, although it is not very easy to spot:
IndexError: too many indices for array
xs = data[:, col["l1" ]]
'Too many indices' means you've given too many index values. You've given 2 values as you're expecting data to be a 2D array. Numpy is complaining because data
is not 2D (it's either 1D or None).
This is a bit of a guess - I wonder if one of the filenames you pass to loadfile() points to an empty file, or a badly formatted one? If so, you might get an array returned that is either 1D, or even empty (np.array(None)
does not throw an Error
, so you would never know...). If you want to guard against this failure, you can insert some error checking into your loadfile
function.
I highly recommend in your for
loop inserting:
print(data)
This will work in Python 2.x or 3.x and might reveal the source of the issue. You might well find it is only one value of your outputs_l1
list (i.e. one file) that is giving the issue.
The str.split()
method without an argument splits on whitespace:
>>> "many fancy word \nhello \thi".split()
['many', 'fancy', 'word', 'hello', 'hi']
Under certain circumstances, IE6 will still cache files even when Cache-Control: no-cache
is in the response headers.
If the no-cache directive does not specify a field-name, then a cache MUST NOT use the response to satisfy a subsequent request without successful revalidation with the origin server.
In my application, if you visited a page with the no-cache
header, then logged out and then hit back in your browser, IE6 would still grab the page from the cache (without a new/validating request to the server). Adding in the no-store
header stopped it doing so. But if you take the W3C at their word, there's actually no way to control this behavior:
History buffers MAY store such responses as part of their normal operation.
General differences between browser history and the normal HTTP caching are described in a specific sub-section of the spec.
We can also use the String constructor. According to this benchmark it's the fastest way to convert a Number to String in Firefox 58 even though it's slower than
" + num
in the popular browser Google Chrome.
I doubt the standard library supports this.
But you can use the google maps utility library:
http://code.google.com/p/google-maps-utility-library-v3/wiki/Libraries#MarkerWithLabel
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var myOptions = {
zoom: 8,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById('map_canvas'), myOptions);
var marker = new MarkerWithLabel({
position: myLatlng,
map: map,
draggable: true,
raiseOnDrag: true,
labelContent: "A",
labelAnchor: new google.maps.Point(3, 30),
labelClass: "labels", // the CSS class for the label
labelInBackground: false
});
The basics about marker can be found here: https://developers.google.com/maps/documentation/javascript/overlays#Markers
The usual API for this is DirectShow.
You can use P/Invoke to import the C++ APIs, but I think there are already a few projects out there that have done this.
http://channel9.msdn.com/forums/TechOff/93476-Programatically-Using-A-Webcam-In-C/
http://www.codeproject.com/KB/directx/DirXVidStrm.aspx
To get the streaming part, you probably want to use DirectShow to apply a compression codec to reduce lag, then you can get a Stream and transmit it. You could consider using multicast to reduce network load.
Using direct conditions (like ==, !=, !condition) will have a slight performance improvement over the .equals(condition) as in one case you are calling the method from an object whereas direct comparisons are performed directly.
I wrote a simple node script for deleting messages from public/private channels and chats. You can modify and use it.
https://gist.github.com/firatkucuk/ee898bc919021da621689f5e47e7abac
First, modify your token in the scripts configuration section then run the script:
node ./delete-slack-messages CHANNEL_ID
Also, the channel ID can be seen in the browser URL when you open slack in the browser. e.g.
https://mycompany.slack.com/messages/MY_CHANNEL_ID/
or
https://app.slack.com/client/WORKSPACE_ID/MY_CHANNEL_ID
I've used the base idea from @Jonathan. I've set the windows with: set JAVA_HOME=C:\Program Files\java\AdoptOpenJDK-11.0.8+10 call mvn clean package -DskipTests
This is an old question and its been answered but I thought I'd put the --binary-files=text option here for anyone who wants to use it. The -I option ignores the binary file but if you want the grep to treat the binary file as a text file use --binary-files=text like so:
bash$ grep -i reset mediaLog*
Binary file mediaLog_dc1.txt matches
bash$ grep --binary-files=text -i reset mediaLog*
mediaLog_dc1.txt:2016-06-29 15:46:02,470 - Media [uploadChunk ,315] - ERROR - ('Connection aborted.', error(104, 'Connection reset by peer'))
mediaLog_dc1.txt:ConnectionError: ('Connection aborted.', error(104, 'Connection reset by peer'))
bash$
lines
is a list of strings, re.findall
doesn't work with that. try:
import re, sys
f = open('findallEX.txt', 'r')
lines = f.read()
match = re.findall('[A-Z]+', lines)
print match
I use the following PHP code to create a variable that I insert into a MySQL DATETIME column.
$datetime = date_create()->format('Y-m-d H:i:s');
This will hold the server's current Date and Time.
I would suggest to use this extension method to chunk the source list to the sub-lists by specified chunk size:
/// <summary>
/// Helper methods for the lists.
/// </summary>
public static class ListExtensions
{
public static List<List<T>> ChunkBy<T>(this List<T> source, int chunkSize)
{
return source
.Select((x, i) => new { Index = i, Value = x })
.GroupBy(x => x.Index / chunkSize)
.Select(x => x.Select(v => v.Value).ToList())
.ToList();
}
}
For example, if you chunk the list of 18 items by 5 items per chunk, it gives you the list of 4 sub-lists with the following items inside: 5-5-5-3.
Had the same error while using SourceTree connected to BitBucket repository.
When navigating to repository url on bitbucket.org the warning message appeared:
This repository is in read-only mode. You caught us doing some quick maintenance.
After around 2 hours repository was accessible again.
You can check status and uptime of bitbucket here: http://status.bitbucket.org/
Is your repository at "upstream" a bare repository? I got the same error, but when I change to bare they no longer happen.
You can use Microsoft's MapPoint Web Services.
I created a blog entry on how to convert an address to a GeoCode (lat/long).
I use a few tools: Fiddler, Firebug, and Visual Studio. I hear Internet Explorer 8 has a good built-in debugger.
CookieManager.getInstance().setAcceptCookie(true);
Normally it should work if your webview is already initialized
or try this:
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie();
cookieManager.setAcceptCookie(true);
Cause: A trigger was attempted to be retrieved for execution and was found to be invalid. This also means that compilation/authorization failed for the trigger.
Action: Options are to resolve the compilation/authorization errors, disable the trigger, or drop the trigger.
Syntax
ALTER TRIGGER trigger Name DISABLE;
ALTER TRIGGER trigger_Name ENABLE;
You can use the instanceof
operator (but see caveat below!).
var myError = new Error('foo');
myError instanceof Error // true
var myString = "Whatever";
myString instanceof Error // false
The above won't work if the error was thrown in a different window/frame/iframe than where the check is happening. In that case, the instanceof Error
check will return false, even for an Error
object. In that case, the easiest approach is duck-typing.
if (myError && myError.stack && myError.message) {
// it's an error, probably
}
However, duck-typing may produce false positives if you have non-error objects that contain stack
and message
properties.