VirtualBox version has many uncompatibilities with Linux version, so it's hard to install by using "Guest Addition CD image". For linux distributions it's frequently have a good companion Guest Addition package(equivalent functions to the CD image) which can be installed by:
sudo apt-get install virtualbox-guest-dkms
After that, on the window menu of the Guest, go to Devices->Shared Folders Settings->Shared Folders and add a host window folder to Machine Folders(Mark Auto-mount option) then you can see the shared folder in the Files of Guest Linux.
Change Color
and Value
( instant change )
Put using System.Runtime.InteropServices;
at top...
Call with ColorBar.SetState(progressBar1, ColorBar.Color.Yellow, myValue);
I noticed that if you change the value of the bar ( how big it is ) then it will not change if it is in a color other than the default green. I took user1032613's code and added a Value option.
public static class ColorBar
{
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = false)]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr w, IntPtr l);
public enum Color { None, Green, Red, Yellow }
public static void SetState(this ProgressBar pBar, Color newColor, int newValue)
{
if (pBar.Value == pBar.Minimum) // If it has not been painted yet, paint the whole thing using defualt color...
{ // Max move is instant and this keeps the initial move from going out slowly
pBar.Value = pBar.Maximum; // in wrong color on first painting
SendMessage(pBar.Handle, 1040, (IntPtr)(int)Color.Green, IntPtr.Zero);
}
pBar.Value = newValue;
SendMessage(pBar.Handle, 1040, (IntPtr)(int)Color.Green, IntPtr.Zero); // run it out to the correct spot in default
SendMessage(pBar.Handle, 1040, (IntPtr)(int)newColor, IntPtr.Zero); // now turn it the correct color
}
}
You can easily get child itself and all of its decedents (children) with Jquery's Clone() method, just
var child = $('#div div:nth-child(1)').clone();
var child2 = $('#div div:nth-child(2)').clone();
You will get this for first query as asked in question
<div id="div1">
<p>Some Content</p>
</div>
We used to run a social website, on a standard LAMP configuration. We had a Live server, Test server, and Development server, as well as the local developers machines. All were managed using GIT.
On each machine, we had the PHP files, but also the MySQL service, and a folder with Images that users would upload. The Live server grew to have some 100K (!) recurrent users, the dump was about 2GB (!), the Image folder was some 50GB (!). By the time that I left, our server was reaching the limit of its CPU, Ram, and most of all, the concurrent net connection limits (We even compiled our own version of network card driver to max out the server 'lol'). We could not (nor should you assume with your website) put 2GB of data and 50GB of images in GIT.
To manage all this under GIT easily, we would ignore the binary folders (the folders containing the Images) by inserting these folder paths into .gitignore. We also had a folder called SQL outside the Apache documentroot path. In that SQL folder, we would put our SQL files from the developers in incremental numberings (001.florianm.sql, 001.johns.sql, 002.florianm.sql, etc). These SQL files were managed by GIT as well. The first sql file would indeed contain a large set of DB schema. We don't add user-data in GIT (eg the records of the users table, or the comments table), but data like configs or topology or other site specific data, was maintained in the sql files (and hence by GIT). Mostly its the developers (who know the code best) that determine what and what is not maintained by GIT with regards to SQL schema and data.
When it got to a release, the administrator logs in onto the dev server, merges the live branch with all developers and needed branches on the dev machine to an update branch, and pushed it to the test server. On the test server, he checks if the updating process for the Live server is still valid, and in quick succession, points all traffic in Apache to a placeholder site, creates a DB dump, points the working directory from 'live' to 'update', executes all new sql files into mysql, and repoints the traffic back to the correct site. When all stakeholders agreed after reviewing the test server, the Administrator did the same thing from Test server to Live server. Afterwards, he merges the live branch on the production server, to the master branch accross all servers, and rebased all live branches. The developers were responsible themselves to rebase their branches, but they generally know what they are doing.
If there were problems on the test server, eg. the merges had too many conflicts, then the code was reverted (pointing the working branch back to 'live') and the sql files were never executed. The moment that the sql files were executed, this was considered as a non-reversible action at the time. If the SQL files were not working properly, then the DB was restored using the Dump (and the developers told off, for providing ill-tested SQL files).
Today, we maintain both a sql-up and sql-down folder, with equivalent filenames, where the developers have to test that both the upgrading sql files, can be equally downgraded. This could ultimately be executed with a bash script, but its a good idea if human eyes kept monitoring the upgrade process.
It's not great, but its manageable. Hope this gives an insight into a real-life, practical, relatively high-availability site. Be it a bit outdated, but still followed.
as simple as:
tmpHM.each{ key, value ->
doSomethingWithKeyAndValue key, value
}
I use this method )
public delegate bool CompareValue<in T1, in T2>(T1 val1, T2 val2);
public static bool CompareTwoArrays<T1, T2>(this IEnumerable<T1> array1, IEnumerable<T2> array2, CompareValue<T1, T2> compareValue)
{
return array1.Select(item1 => array2.Any(item2 => compareValue(item1, item2))).All(search => search)
&& array2.Select(item2 => array1.Any(item1 => compareValue(item1, item2))).All(search => search);
}
Here is the best way I've found to add read-only users (using PostgreSQL 9.0 or newer):
$ sudo -upostgres psql postgres
postgres=# CREATE ROLE readonly WITH LOGIN ENCRYPTED PASSWORD '<USE_A_NICE_STRONG_PASSWORD_PLEASE';
postgres=# GRANT SELECT ON ALL TABLES IN SCHEMA public TO readonly;
Then log in to all related machines (master + read-slave(s)/hot-standby(s), etc..) and run:
$ echo "hostssl <PUT_DBNAME_HERE> <PUT_READONLY_USERNAME_HERE> 0.0.0.0/0 md5" | sudo tee -a /etc/postgresql/9.2/main/pg_hba.conf
$ sudo service postgresql reload
The corporate HTTP proxy behind which I currently am sporadically gives this error. I can fix it by simply visiting bitbucket.org in a browser, then retyring the command. Have no idea why this works, but it does fix it for me (at least temporarily).
My favourite is to extend jQuery with this tiny convenience:
$.fn.exists = function () {
return this.length !== 0;
}
Used like:
$("#notAnElement").exists();
More explicit than using length.
You can use the [DisplayFormat] attribute on your view model as you want to apply this format for the whole project.
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd/MM/yyyy}")]
public Nullable<System.DateTime> Date { get; set; }
Please show more of your code.
If that last piece of code declares and initializes the list
variable outside the loop you're basically reusing the same list object, thus adding everything into one list.
Also show where .Capacity and .Count comes into play, how did you get those values?
You can also compare with double value
BigDecimal a= new BigDecimal("1.1"); BigDecimal b =new BigDecimal("1.1");
System.out.println(a.doubleValue()==b.doubleValue());
You can find here the official javadoc of the support-annotations
library.
Error:(3, 31) error: package com.android.annotations does not exist
As you can see all the classes are in the same package android.support.annotation
and not com.android.annotations
.
Error:(7, 2) error: cannot find symbol class NonNullByDefault
Also the class NonNullByDefault
doesn't exist in that package.
This is the most comprehensive AngularJS learning resource repository I've come across:
To pluck out the best parts (in recommended order of learning):
Solved the problem with:
sudo chown -R $USER:$USER /var/www/folder-name
sudo chmod -R 755 /var/www
Grant permissions
Generators have no length, they aren't collections after all.
Generators are functions with a internal state (and fancy syntax). You can repeatedly call them to get a sequence of values, so you can use them in loop. But they don't contain any elements, so asking for the length of a generator is like asking for the length of a function.
if functions in Python are objects, couldn't I assign the length to a variable of this object that would be accessible to the new generator?
Functions are objects, but you cannot assign new attributes to them. The reason is probably to keep such a basic object as efficient as possible.
You can however simply return (generator, length)
pairs from your functions or wrap the generator in a simple object like this:
class GeneratorLen(object):
def __init__(self, gen, length):
self.gen = gen
self.length = length
def __len__(self):
return self.length
def __iter__(self):
return self.gen
g = some_generator()
h = GeneratorLen(g, 1)
print len(h), list(h)
Try using getTime
(mdn doc) :
var diff = Math.abs(date1.getTime() - date2.getTime()) / 3600000;
if (diff < 18) { /* do something */ }
Using Math.abs()
we don't know which date is the smallest. This code is probably more relevant :
var diff = (date1 - date2) / 3600000;
if (diff < 18) { array.push(date1); }
I keep thinking there must be a better idiom, but for subtraction of columns by name, I tend to do the following:
df <- data.frame(a=1:10, b=1:10, c=1:10, d=1:10)
# return everything except a and c
df <- df[,-match(c("a","c"),names(df))]
df
Both commands are correct
php_value post_max_size 30M
php_value upload_max_filesize 30M
BUT to use the .htaccess
you have to enable rewrite_module
in Apache config file. In httpd.conf
find this line:
# LoadModule rewrite_module modules/mod_rewrite.so
and remove the #
.
I don't think there is a "apache-common-like" tool to compare maps since the equality of 2 maps is very ambiguous and depends on the developer needs and the map implementation...
For exemple if you compare two hashmaps in java: - You may want to just compare key/values are the same - You may also want to compare if the keys are ordered the same way - You may also want to compare if the remaining capacity is the same ... You can compare a lot of things!
What such a tool would do when comparing 2 different map implementations such that: - One map allow null keys - The other throw runtime exception on map2.get(null)
You'd better to implement your own solution according to what you really need to do, and i think you already got some answers above :)
The correct way to 'solve' it is to close the connection and forget about the client. The client has closed the connection while you where still writing to it, so he doesn't want to know you, so that's it, isn't it?
You can simply use DataColumnCollection.IndexOf
So that you can get the index of the required column by name then use it with your row:
row[dt.Columns.IndexOf("ColumnName")] = columnValue;
Try this code:
EndpointImpl impl = (EndpointImpl)Endpoint.publish(address, implementor);
impl.getServer().getEndpoint().getInInterceptors().add(new LoggingInInterceptor());
impl.getServer().getEndpoint().getOutInterceptors().add(new LoggingOutInterceptor());
Inside the logback.xml
you need to put the interface name for webservice:
<appender name="FILE" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator
class="com.progressoft.ecc.integration.logging.ThreadNameDiscriminator">
<key>threadName</key>
<defaultValue>unknown</defaultValue>
</discriminator>
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<evaluator>
<expression>logger.contains("InterfaceWebServiceSoap")</expression>
</evaluator>
<OnMismatch>DENY</OnMismatch>
<OnMatch>NEUTRAL</OnMatch>
</filter>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>TRACE</level>
</filter>
<sift>
<appender name="FILE-${threadName}"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>${LOGGING_PATH}/${threadName}.log</File>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<FileNamePattern>${ARCHIVING_PATH}/%d{yyyy-MM-dd}.${threadName}%i.log.zip
</FileNamePattern>
<MaxHistory>30</MaxHistory>
<TimeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<MaxFileSize>50MB</MaxFileSize>
</TimeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%date{dd-MM-yyyy HH:mm:ss.SSS} | %5level | %-60([%logger{53}:%line]): %msg %ex{full} %n</Pattern>
</encoder>
</appender>
</sift>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="FILE" />
</root>
Old question but anyway !
Same thing happen to me this morning, everything was working fine for weeks before...... yes guess what ... I change my windows PC user account password yesterday night !!!!! (how stupid was I !!!)
So easy fix : IIS -> authentication -> Anonymous authentication -> edit and set the user and new PASSWORD !!!!!
At the end of the day I'm not interested in combining streams, but in obtaining the combined result of processing each element of all those streams.
While combining streams might prove to be cumbersome (thus this thread), combining their processing results is fairly easy.
The key to solve is to create your own collector and ensure that the supplier function for the new collector returns the same collection every time (not a new one), the code below illustrates this approach.
package scratchpad;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collector;
import java.util.stream.Stream;
public class CombineStreams {
public CombineStreams() {
super();
}
public static void main(String[] args) {
List<String> resultList = new ArrayList<>();
Collector<String, List<String>, List<String>> collector = Collector.of(
() -> resultList,
(list, item) -> {
list.add(item);
},
(llist, rlist) -> {
llist.addAll(rlist);
return llist;
}
);
String searchString = "Wil";
System.out.println("After processing first stream\n"
+ createFirstStream().filter(name -> name.contains(searchString)).collect(collector));
System.out.println();
System.out.println("After processing second stream\n"
+ createSecondStream().filter(name -> name.contains(searchString)).collect(collector));
System.out.println();
System.out.println("After processing third stream\n"
+ createThirdStream().filter(name -> name.contains(searchString)).collect(collector));
System.out.println();
}
private static Stream<String> createFirstStream() {
return Arrays.asList(
"William Shakespeare",
"Emily Dickinson",
"H. P. Lovecraft",
"Arthur Conan Doyle",
"Leo Tolstoy",
"Edgar Allan Poe",
"Robert Ervin Howard",
"Rabindranath Tagore",
"Rudyard Kipling",
"Seneca",
"John Donne",
"Sarah Williams",
"Oscar Wilde",
"Catullus",
"Alfred Tennyson",
"William Blake",
"Charles Dickens",
"John Keats",
"Theodor Herzl"
).stream();
}
private static Stream<String> createSecondStream() {
return Arrays.asList(
"Percy Bysshe Shelley",
"Ernest Hemingway",
"Barack Obama",
"Anton Chekhov",
"Henry Wadsworth Longfellow",
"Arthur Schopenhauer",
"Jacob De Haas",
"George Gordon Byron",
"Jack London",
"Robert Frost",
"Abraham Lincoln",
"O. Henry",
"Ovid",
"Robert Louis Stevenson",
"John Masefield",
"James Joyce",
"Clark Ashton Smith",
"Aristotle",
"William Wordsworth",
"Jane Austen"
).stream();
}
private static Stream<String> createThirdStream() {
return Arrays.asList(
"Niccolò Machiavelli",
"Lewis Carroll",
"Robert Burns",
"Edgar Rice Burroughs",
"Plato",
"John Milton",
"Ralph Waldo Emerson",
"Margaret Thatcher",
"Sylvie d'Avigdor",
"Marcus Tullius Cicero",
"Banjo Paterson",
"Woodrow Wilson",
"Walt Whitman",
"Theodore Roosevelt",
"Agatha Christie",
"Ambrose Bierce",
"Nikola Tesla",
"Franz Kafka"
).stream();
}
}
Besides all of the (well-explained) answers, there hasn't been the following mentioned and I visit this Q&A quite often.
In a nutshell; MySQL thinks you want to do math on its own table/column and interprets hyphens such as "e-mail" as e
minus mail
.
Disclaimer: So I thought I would add this as an "FYI" type of answer for those who are completely new to working with databases and who may not understand the technical terms described already.
CREATE TABLE Employees
(
Id int,
Name varchar(50) not null,
Photo varbinary(max) not null
)
INSERT INTO Employees (Id, Name, Photo)
SELECT 10, 'John', BulkColumn
FROM Openrowset( Bulk 'C:\photo.bmp', Single_Blob) as EmployeePicture
(parent window)
<html>
<script language="javascript">
function openWindow() {
window.open("target.html","_blank","height=200,width=400, status=yes,toolbar=no,menubar=no,location=no");
}
</script>
<body>
<form name=frm>
<input id=text1 type=text>
<input type=button onclick="javascript:openWindow()" value="Open window..">
</form>
</body>
</html>
(child window)
<html>
<script language="javascript">
function changeParent() {
window.opener.document.getElementById('text1').value="Value changed..";
window.close();
}
</script>
<body>
<form>
<input type=button onclick="javascript:changeParent()" value="Change opener's textbox's value..">
</form>
</body>
</html>
In my case compared arrays contain only numbers and strings. This solution worked for me:
function are_arrs_equal(arr1, arr2){
return arr1.sort().toString() === arr2.sort().toString()
}
Let's test it!
arr1 = [1, 2, 3, 'nik']
arr2 = ['nik', 3, 1, 2]
arr3 = [1, 2, 5]
console.log (are_arrs_equal(arr1, arr2)) //true
console.log (are_arrs_equal(arr1, arr3)) //false
\begingroup
\fontsize{10pt}{12pt}\selectfont
\begin{verbatim}
% how to set font size here to 10 px ?
\end{verbatim}
\endgroup
Just do:
0 */2 * * * /home/username/test.sh
The 0 at the beginning means to run at the 0th minute. (If it were an *, the script would run every minute during every second hour.)
Don't forget, you can check syslog to see if it ever actually ran!
Math.Floor()
rounds
"toward negative infinity" in compliance to IEEE Standard 754 section 4.
Math.Truncate()
rounds " to the nearest integer towards zero."
I found the solution. Actually Base64 class is not available in Android. Link is given below for more information.
byte[] byteArray;
byteArray= json.getBytes(StandardCharsets.US_ASCII);
String encoded=Base64.encodeBytes(byteArray);
userLogin(encoded);
Here is the link for Base64 class: http://androidcodemonkey.blogspot.com/2010/03/how-to-base64-encode-decode-android.html
On centos 7, I just do
sudo yum install java-sdk
I assume you have most common repo already. Centos just finds the correct SDK with the -devel sufix.
I would strongly recommend field access and NOT annotations on the getters (property access) if you want to do anything more in the setters than just setting the value (e.g. Encryption or calculation).
The problem with the property access is that the setters are also called when the object is loaded. This has worked for me fine for many month until we wanted to introduce encryption. In our use case we wanted to encrypt a field in the setter and decrypt it in the getter. The problem now with property access was that when Hibernate loaded the object it was also calling the setter to populate the field and thus was encrypting the encrypted value again. This post also mentions this: Java Hibernate: Different property set function behavior depending on who is calling it
This has cause me headaches until I remembered the difference between field access and property access. Now I have moved all my annotations from property access to field access and it works fine now.
It comes from the idea that you often want to apply something to an object. The more accurate example is the one of factories. When you have a factory, you want to apply parameter to it to create an object.
Scala guys thought that, as it occurs in many situation, it could be nice to have a shortcut to call apply
. Thus when you give parameters directly to an object, it's desugared as if you pass these parameters to the apply function of that object:
class MyAdder(x: Int) {
def apply(y: Int) = x + y
}
val adder = new MyAdder(2)
val result = adder(4) // equivalent to x.apply(4)
It's often use in companion object, to provide a nice factory method for a class or a trait, here is an example:
trait A {
val x: Int
def myComplexStrategy: Int
}
object A {
def apply(x: Int): A = new MyA(x)
private class MyA(val x: Int) extends A {
val myComplexStrategy = 42
}
}
From the scala standard library, you might look at how scala.collection.Seq
is implemented: Seq
is a trait, thus new Seq(1, 2)
won't compile but thanks to companion object and apply, you can call Seq(1, 2)
and the implementation is chosen by the companion object.
On Windows 10 you can use CTRL + } to comment/uncomment on any line or block of code.
The following PHP worked for me (using mysqli extension but queries should be the same for other extensions):
$db = new mysqli( 'localhost', 'user', 'pass', 'dbname' );
// to get the max_allowed_packet
$maxp = $db->query( 'SELECT @@global.max_allowed_packet' )->fetch_array();
echo $maxp[ 0 ];
// to set the max_allowed_packet to 500MB
$db->query( 'SET @@global.max_allowed_packet = ' . 500 * 1024 * 1024 );
So if you've got a query you expect to be pretty long, you can make sure that mysql will accept it with something like:
$sql = "some really long sql query...";
$db->query( 'SET @@global.max_allowed_packet = ' . strlen( $sql ) + 1024 );
$db->query( $sql );
Notice that I added on an extra 1024 bytes to the length of the string because according to the manual,
The value should be a multiple of 1024; nonmultiples are rounded down to the nearest multiple.
That should hopefully set the max_allowed_packet size large enough to handle your query. I haven't tried this on a shared host, so the same caveat as @Glebushka applies.
This worked for me:
Seems like something went south when I originally created the site. I hate solutions that are similar to "Restart your machine, then reinstall windows" without knowing what caused the error. But, this worked for me. Quick and simple. Hope it helps someone else.
They are not equivalent. The first will execute the block following the if
statement if myVar
is truthy (i.e. evaluates to true
in a conditional), while the second will execute the block if myVar
is any value other than null
.
The only values that are not truthy in JavaScript are the following (a.k.a. falsy values):
null
undefined
0
""
(the empty string)false
NaN
Just make sure put single space before and after "and" Keyword..
If you want to use the es6 template literals, you need braces around the tick marks as well:
<img className="image" src={`images/${this.props.image}`} />
There are two main uses of AtomicInteger
:
As an atomic counter (incrementAndGet()
, etc) that can be used by many threads concurrently
As a primitive that supports compare-and-swap instruction (compareAndSet()
) to implement non-blocking algorithms.
Here is an example of non-blocking random number generator from Brian Göetz's Java Concurrency In Practice:
public class AtomicPseudoRandom extends PseudoRandom {
private AtomicInteger seed;
AtomicPseudoRandom(int seed) {
this.seed = new AtomicInteger(seed);
}
public int nextInt(int n) {
while (true) {
int s = seed.get();
int nextSeed = calculateNext(s);
if (seed.compareAndSet(s, nextSeed)) {
int remainder = s % n;
return remainder > 0 ? remainder : remainder + n;
}
}
}
...
}
As you can see, it basically works almost the same way as incrementAndGet()
, but performs arbitrary calculation (calculateNext()
) instead of increment (and processes the result before return).
I assume you install gems into vendor/bundle
? If so, why not just delete all the gems and do a clean bundle install
?
You can add security provider by editing java.security with using following code with creating static block:
static {
Security.addProvider(new BouncyCastleProvider());
}
If you are using maven project, then you will have to add dependency for BouncyCastleProvider as follows in pom.xml file of your project.
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.47</version>
</dependency>
If you are using normal java project, then you can add download bcprov-jdk15on-147.jar from the link given below and edit your classpath.
http://www.java2s.com/Code/Jar/b/Downloadbcprovextjdk15on147jar.htm
If you don't know how many arguments you might get, and want to pass them all through to the child as well:
class Foo(bar)
def baz(self, arg, *args, **kwargs):
# ... Do your thing
return super(Foo, self).baz(arg, *args, **kwargs)
This may not solve all of your problems, but the variable you are using inside your function (text) is not the same as the parameter you are passing in (x).
Changing:
function textreplace(x) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}
To:
function textreplace(text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}
seems like it would do some good.
There are multiple ways:
ng --version
The command above will result in the following output:
Angular CLI: 7.0.3
Node: 9.4.0
OS: darwin x64
Angular: 7.0.1
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router
Package Version
@angular-devkit/architect 0.10.3
@angular-devkit/build-angular 0.10.3
@angular-devkit/build-optimizer 0.10.3
@angular-devkit/build-webpack 0.10.3
@angular-devkit/core 7.0.3
@angular-devkit/schematics 7.0.3
@angular/cli 7.0.3
@ngtools/webpack 7.0.3
@schematics/angular 7.0.3
@schematics/update 0.10.3
rxjs 6.3.3
typescript 3.1.4
webpack 4.19.1
So, the version of Angular, Angular CLI, Node and many other packages can be verified from here.
Instead of using an Array, consider using either a Hash or a Set.
Sets behave similar to an Array, only they contain unique values only, and, under the covers, are built on Hashes. Sets don't retain the order that items are put into them unlike Arrays. Hashes don't retain the order either but can be accessed via a key so you don't have to traverse the hash to find a particular item.
I favor using Hashes. In your application the user_id could be the key and the value would be the entire object. That will automatically remove any duplicates from the hash.
Or, only extract unique values from the database, like John Ballinger suggested.
You can delete all breakpoints using
del <start_breakpoint_num> - <end_breakpoint_num>
To view the start_breakpoint_num and end_breakpoint_num use:
info break
Open a separate terminal and start adb with logcat. On my (linux) system;
~/android-studio/sdk/platform-tools/adb logcat
You can use Sort
List<string> ListaServizi = new List<string>() { };
ListaServizi.Sort();
I faced the same issue because I didn't have permission to query the database I was trying to.
In the case you don't have permission to query the table/database, besides the Return Code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask
error, you will see that in Cloudera Manager is not even registering your query.
This is the correct answer. It worked!!
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
driver = webdriver.Chrome("E:\\Python\\selenium\\webdriver\\chromedriver.exe")
driver.get("https://www.tatacliq.com/global-desi-navy-embroidered-kurta/p-mp000000000876745")
driver.set_page_load_timeout(45)
driver.maximize_window()
driver.implicitly_wait(2)
driver.get_screenshot_as_file("E:\\Python\\Tatacliq.png")
print ("Executed Successfully")
driver.find_element_by_xpath("//div[@class='pdp-promo-title pdp-title']").click()
SpecialPrice = driver.find_element_by_xpath("//div[@class='pdp-promo-title pdp-title']").text
print(SpecialPrice)
Include the following function at the start of your code, whenever you want to busy wait. This is distinct from sleep, because the process will be utilizing 100% cpu while this function is running.
void sleep(unsigned int mseconds)
{
clock_t goal = mseconds + clock();
while (goal > clock())
;
}
Note that the name sleep
for this function is misleading, since the CPU will not be sleeping at all.
both are the same, but array_push makes a loop in it's parameter which is an array and perform $array[]=$element
Instead of doing recursion, the parts of the code with checkNextID(ID + 18)
and similar could be replaced with ID+=18
, and then if you remove all instances of return 0
, then it should do the same thing but as a simple loop. You should then put a return 0
at the end and make your variables non-global.
It's probably easier to create your keys under linux and use PuTTYgen to convert the keys to PuTTY format.
The problem is you are not linking to the jQuery UI library (which is where datepicker resides):
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<link rel="stylesheet" type="text/css" href="style.css" media="screen" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.js"></script>
<script>
$(function() {
$( "#datepicker" ).datepicker();
});
</script>
</head>
<body>
<div class="demo">
<p>Date: <input type="text" id="datepicker"></p>
</div><!-- End demo -->
</body>
</HTML>
You can Also use this online tool to customize your button http://angrytools.com/android/button/ and use android:background="@drawable/custom_btn"
to define the customized button in your layout.
Ive had the same error just come up which aligned suspiciously with the latest round of Microsoft updates (09/02/2016). I found that SSMS connected without issue while my ASP.NET application returned the "timeout period elapsed while attempting to consume the pre-login handshake acknowledgement" error
The solution for me was to add a connection timeout of 30 seconds into the connection string eg:
ConnectionString="Data Source=xyz;Initial Catalog=xyz;Integrated Security=True;Connection Timeout=30;"
In my situation the only affected connection was one that was using integrated Security and I was impersonating a user before connecting, other connections to the same server using SQL Authentication worked fine!
2 test systems (separate clients and Sql servers) were affected at the same time leading me to suspect a microsoft update!
const
is for compile-time constants. You could just make it static readonly
, but that would only apply to the METRICS
variable itself (which should typically be Metrics instead, by .NET naming conventions). It wouldn't make the list immutable - so someone could call METRICS.Add("shouldn't be here");
You may want to use a ReadOnlyCollection<T>
to wrap it. For example:
public static readonly IList<String> Metrics = new ReadOnlyCollection<string>
(new List<String> {
SourceFile.LoC, SourceFile.McCabe, SourceFile.NoM,
SourceFile.NoA, SourceFile.FanOut, SourceFile.FanIn,
SourceFile.Par, SourceFile.Ndc, SourceFile.Calls });
ReadOnlyCollection<T>
just wraps a potentially-mutable collection, but as nothing else will have access to the List<T>
afterwards, you can regard the overall collection as immutable.
(The capitalization here is mostly guesswork - using fuller names would make them clearer, IMO.)
Whether you declare it as IList<string>
, IEnumerable<string>
, ReadOnlyCollection<string>
or something else is up to you... if you expect that it should only be treated as a sequence, then IEnumerable<string>
would probably be most appropriate. If the order matters and you want people to be able to access it by index, IList<T>
may be appropriate. If you want to make the immutability apparent, declaring it as ReadOnlyCollection<T>
could be handy - but inflexible.
This error is generally caused by one of your Chrome extensions.
I recommend installing this One-Click Extension Disabler, I use it with the keyboard shortcut COMMAND (?) + SHIFT (?) + D — to quickly disable/enable all my extensions.
Once the extensions are disabled this error message should go away.
Peace! ??
Your sprite is created mid way through the playerSprite function... it also goes out of scope and ceases to exist at the end of that same function. The sprite must be created where you can pass it to playerSprite to initialize it and also where you can pass it to your draw function.
Perhaps declare it above your first while
?
If I understand your question correctly, format() is what you are looking for, along with its mini-language.
Silly example for python 2.7 and up:
>>> print "{} ...\r\n {}!".format("Hello", "world")
Hello ...
world!
For earlier python versions: (tested with 2.6.2)
>>> print "{0} ...\r\n {1}!".format("Hello", "world")
Hello ...
world!
First of all, there is no difference between View.OnClickListener
and OnClickListener
. If you just use View.OnClickListener
directly, then you don't need to write-
import android.view.View.OnClickListener
You set an OnClickListener instance (e.g. myListener
named object)as the listener to a view via setOnclickListener()
. When a click
event is fired, that myListener
gets notified and it's onClick(View view)
method is called. Thats where we do our own task.
Hope this helps you.
SELECT orderhed.ordernum, orderhed.orderdate, currrate.currencycode,
case(currrate.currentrate) when null then 1 else currrate.currentrate end
FROM orderhed LEFT OUTER JOIN currrate ON orderhed.company = currrate.company AND orderhed.orderdate = currrate.effectivedate
Shog9 is right that this doesn't make all that much sense to ask, since an object could be referred to by multiple variables. If you don't really care about that, and all you want is to find the name of one of the global variables that refers to that object, you could do the following hack:
function myClass() {
this.myName = function () {
// search through the global object for a name that resolves to this object
for (var name in this.global)
if (this.global[name] == this)
return name
}
}
// store the global object, which can be referred to as this at the top level, in a
// property on our prototype, so we can refer to it in our object's methods
myClass.prototype.global = this
// create a global variable referring to an object
var myVar = new myClass()
myVar.myName() // returns "myVar"
Note that this is an ugly hack, and should not be used in production code. If there is more than one variable referring to an object, you can't tell which one you'll get. It will only search the global variables, so it won't work if a variable is local to a function. In general, if you need to name something, you should pass the name in to the constructor when you create it.
edit: To respond to your clarification, if you need to be able to refer to something from an event handler, you shouldn't be referring to it by name, but instead add a function that refers to the object directly. Here's a quick example that I whipped up that shows something similar, I think, to what you're trying to do:
function myConstructor () {
this.count = 0
this.clickme = function () {
this.count += 1
alert(this.count)
}
var newDiv = document.createElement("div")
var contents = document.createTextNode("Click me!")
// This is the crucial part. We don't construct an onclick handler by creating a
// string, but instead we pass in a function that does what we want. In order to
// refer to the object, we can't use this directly (since that will refer to the
// div when running event handler), but we create an anonymous function with an
// argument and pass this in as that argument.
newDiv.onclick = (function (obj) {
return function () {
obj.clickme()
}
})(this)
newDiv.appendChild(contents)
document.getElementById("frobnozzle").appendChild(newDiv)
}
window.onload = function () {
var myVar = new myConstructor()
}
msg = request.GET.get('q','default')
if (msg == default):
message = "YOU SUBMITTED NOTHING"
else:
message = "you submitted = %s" %msg"
return HttpResponse(message);
extension UIViewController {
func topMostViewController() -> UIViewController {
if self.presentedViewController == nil {
return self
}
if let navigation = self.presentedViewController as? UINavigationController {
return navigation.visibleViewController.topMostViewController()
}
if let tab = self.presentedViewController as? UITabBarController {
if let selectedTab = tab.selectedViewController {
return selectedTab.topMostViewController()
}
return tab.topMostViewController()
}
return self.presentedViewController!.topMostViewController()
}
}
extension UIApplication {
func topMostViewController() -> UIViewController? {
return self.keyWindow?.rootViewController?.topMostViewController()
}
}
1) First you need to install a GCC Compiler for mac (Google it and install it from the net )
2) Remember the path where you are storing the C file
3) Go to Terminal and set the path
e.g- if you have saved in a new folder ProgramC in Document folder
then type this in Terminal
cd Document
cd ProgramC
4) Now you can see that you are in folder where you have saved your C program (let you saved your program as Hello.c)
5) Now Compile your program
make Hello
./hello
As Selman22 said, you are overriding the default object.Equals
method, which accepts an object obj
and not a safe compile time type.
In order for that to happen, make your type implement IEquatable<Box>
:
public class Box : IEquatable<Box>
{
double height, length, breadth;
public static bool operator ==(Box obj1, Box obj2)
{
if (ReferenceEquals(obj1, obj2))
{
return true;
}
if (ReferenceEquals(obj1, null))
{
return false;
}
if (ReferenceEquals(obj2, null))
{
return false;
}
return obj1.Equals(obj2);
}
public static bool operator !=(Box obj1, Box obj2)
{
return !(obj1 == obj2);
}
public bool Equals(Box other)
{
if (ReferenceEquals(other, null))
{
return false;
}
if (ReferenceEquals(this, other))
{
return true;
}
return height.Equals(other.height)
&& length.Equals(other.length)
&& breadth.Equals(other.breadth);
}
public override bool Equals(object obj)
{
return Equals(obj as Box);
}
public override int GetHashCode()
{
unchecked
{
int hashCode = height.GetHashCode();
hashCode = (hashCode * 397) ^ length.GetHashCode();
hashCode = (hashCode * 397) ^ breadth.GetHashCode();
return hashCode;
}
}
}
Another thing to note is that you are making a floating point comparison using the equality operator and you might experience a loss of precision.
Add a "User-Agent" header to your request.
Some servers attempt to block spidering programs and scrapers from accessing their server because, in earlier days, requests did not send a user agent header.
You can either try to set a custom user agent value or use some value that identifies a Browser like "Mozilla/5.0 Firefox/26.0"
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
headers.setContentType(MediaType.APPLICATION_JSON);
headers.add("user-agent", "Mozilla/5.0 Firefox/26.0");
headers.set("user-key", "your-password-123"); // optional - in case you auth in headers
HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
ResponseEntity<Game[]> respEntity = restTemplate.exchange(url, HttpMethod.GET, entity, Game[].class);
logger.info(respEntity.toString());
Try request.setAttribute("param",value);
. It worked fine for me.
Please find this code sample:
private void sanitizePrice(ServletRequest request){
if(request.getParameterValues ("price") != null){
String price[] = request.getParameterValues ("price");
for(int i=0;i<price.length;i++){
price[i] = price[i].replaceAll("[^\\dA-Za-z0-9- ]", "").trim();
System.out.println(price[i]);
}
request.setAttribute("price", price);
//request.getParameter("numOfBooks").re
}
}
Depends on what your are doing.
If you have SPA (Single-Page Application) the you can use:
<input id="txtName" type="text" />
Otherwise using Html helpers is recommended, to get your controls bound with your model.
Add line break to ::after
or ::before
pseudo-element content
.yourclass:before {
content: 'text here first \A text here second';
white-space: pre;
}
These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]\d{9}$/
The explanation:
(a|b|c)
is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you would code (?:7|8|9)
to make it a non capturing group.
[abc]
is a "character class" that means "any character from a,b or c" (a character class may use ranges, e.g. [a-d]
= [abcd]
)
The reason these regexes are similar is that a character class is a shorthand for an "or" (but only for single characters). In an alternation, you can also do something like (abc|def)
which does not translate to a character class.
In C++, your source files are usually parsed from top to bottom in a single pass, so any variable or function must be declared before they can be used. There are some exceptions to this, like when defining functions inline in a class definition, but that's not the case for your code.
Either move the definition of integrate
above the one for getSkewNormal
, or add a forward declaration above getSkewNormal
:
double integrate (double start, double stop, int numSteps, Evaluatable evalObj);
The same applies for sum
.
This question is confusing. A regular object, {}
doesn't have a length
property unless you're intending to make your own function constructor which generates custom objects which do have it ( in which case you didn't specify ).
Meaning, you have to get the "length" by a for..in
statement on the object, since length
is not set, and increment a counter.
I'm confused as to why you need the length
. Are you manually setting 0
on the object, or are you relying on custom string keys? eg obj['foo'] = 'bar';
. If the latter, again, why the need for length?
Edit #1: Why can't you just do this?
list = [ {name:'john'}, {name:'bob'} ];
Then iterate over list? The length
is already set.
You can't (and shouldn't) block processing with a sleep function. However, you can use setTimeout
to kick off a function after a delay:
setTimeout(function(){alert("hi")}, 1000);
Depending on your needs, setInterval
might be useful, too.
As Dennis says, you can't control how the browser chooses to handle target=_blank.
If you're wondering about the inconsistent behavior, probably it's pop-up blocking. Many browsers will forbid new windows from being opened apropos of nothing, but will allow new windows to be spawned as the eventual result of a mouse-click event.
Not an exact solution but a great alternative to consider
this CSS ONLY Top of screen scroll bar. Solved all the problem with ONLY CSS, NO JavaScript, NO JQuery, No Brain work (lol).
Enjoy my fiddle :D all the codes are included in there :)
CSS
#menu {
position: fixed;
height: 60px;
width: 100%;
top: 0;
left: 0;
border-top: 5px solid #a1cb2f;
background: #fff;
-moz-box-shadow: 0 2px 3px 0px rgba(0, 0, 0, 0.16);
-webkit-box-shadow: 0 2px 3px 0px rgba(0, 0, 0, 0.16);
box-shadow: 0 2px 3px 0px rgba(0, 0, 0, 0.16);
z-index: 999999;
}
.w {
width: 900px;
margin: 0 auto;
margin-bottom: 40px;
}<br type="_moz">
Put the content long enough so you can see the effect here :) Oh, and the reference is in there as well, for the fact he deserve his credit
Try the SetField method:
By passing column object :
table.Rows[rowIndex].SetField(column, value);
By Passing column index :
table.Rows[rowIndex].SetField(0 /*column index*/, value);
By Passing column name as string :
table.Rows[rowIndex].SetField("product_name" /*columnName*/, value);
Just in case someone stumbles upon this like I did and doesn't realise, the two variations above are for different use cases.
The following:
.blue-border, .background {
border: 1px solid #00f;
background: #fff;
}
is for when you want to add styles to elements that have either the blue-border or background class, for example:
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
would all get a blue border and white background applied to them.
However, the accepted answer is different.
.blue-border.background {
border: 1px solid #00f;
background: #fff;
}
This applies the styles to elements that have both classes so in this example only the <div>
with both classes should get the styles applied (in browsers that interpret the CSS properly):
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
So basically think of it like this, comma separating applies to elements with one class OR another class and dot separating applies to elements with one class AND another class.
All of the example above should work just add a document ready action and change the order of how you perform the updates to the texts, also make sure your using Script manager alternatively non of this will work for you. Here is the text within the code behind.
aspx
<div class="modal fade" id="myModal" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<asp:UpdatePanel ID="upModal" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title"><asp:Label ID="lblModalTitle" runat="server" Text=""></asp:Label></h4>
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
</div>
<div class="modal-body">
<asp:Label ID="lblModalBody" runat="server" Text=""></asp:Label>
</div>
<div class="modal-footer">
<button class="btn btn-primary" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</div>
Code Behind
lblModalTitle.Text = "Validation Errors";
lblModalBody.Text = form.Error;
upModal.Update();
ScriptManager.RegisterStartupScript(Page, Page.GetType(), "myModal", "$(document).ready(function () {$('#myModal').modal();});", true);
As cardern has said list will do the job.
Here is how you can use a named range.
Select your range and enter a new name:
Select your cell that you want a drop down to be in and goto data tab -> data validation.
Select 'List' from the 'Allow' Drop down menu.
Enter your named range like this:
Now you have a drop down linked to your range. If you insert new rows in your range everything will update automatically.
If you use ASP-NET MVC, you need to right-click on Default.ASPX which will have a Browse With menu.
function WriteLog
{
Param ([string]$LogString)
$LogFile = "C:\$(gc env:computername).log"
$DateTime = "[{0:MM/dd/yy} {0:HH:mm:ss}]" -f (Get-Date)
$LogMessage = "$Datetime $LogString"
Add-content $LogFile -value $LogMessage
}
WriteLog "This is my log message"
There is practical difference between string.Equals
and ==
bool result = false;
object obj = "String";
string str2 = "String";
string str3 = typeof(string).Name;
string str4 = "String";
object obj2 = str3;
// Comparision between object obj and string str2 -- Com 1
result = string.Equals(obj, str2);// true
result = String.ReferenceEquals(obj, str2); // true
result = (obj == str2);// true
// Comparision between object obj and string str3 -- Com 2
result = string.Equals(obj, str3);// true
result = String.ReferenceEquals(obj, str3); // false
result = (obj == str3);// false
// Comparision between object obj and string str4 -- Com 3
result = string.Equals(obj, str4);// true
result = String.ReferenceEquals(obj, str4); // true
result = (obj == str4);// true
// Comparision between string str2 and string str3 -- Com 4
result = string.Equals(str2, str3);// true
result = String.ReferenceEquals(str2, str3); // false
result = (str2 == str3);// true
// Comparision between string str2 and string str4 -- Com 5
result = string.Equals(str2, str4);// true
result = String.ReferenceEquals(str2, str4); // true
result = (str2 == str4);// true
// Comparision between string str3 and string str4 -- Com 6
result = string.Equals(str3, str4);// true
result = String.ReferenceEquals(str3, str4); // false
result = (str3 == str4);// true
// Comparision between object obj and object obj2 -- Com 7
result = String.Equals(obj, obj2);// true
result = String.ReferenceEquals(obj, obj2); // false
result = (obj == obj2);// false
Adding Watch
obj "String" {1#} object {string}
str2 "String" {1#} string
str3 "String" {5#} string
str4 "String" {1#} string
obj2 "String" {5#} object {string}
Now look at {1#}
and {5#}
obj
, str2
, str4
and obj2
references are same.
obj
and obj2
are object type
and others are string type
object
and string
so performs a reference equality checkobject
and string
so performs a reference equality checkobject
and string
so performs a reference equality checkstring
and string
so performs a string value checkstring
and string
so performs a string value checkstring
and string
so performs a string value checkobject
and object
so performs a reference equality check
- obj and obj2 point to the different references so the result is falseI think it's possible to express functional programming in an imperative fashion:
if... else
/ switch
statements There are huge problems with such approach:
Functional programming, treating functions/ methods like objects and embracing statelessness, was born to solve those problems I believe.
Example of usages: frontend applications like Android, iOS or web apps' logics incl. communication with backend.
Other challenges when simulating functional programming with imperative/ procedural code:
I also believe that at the end of the day, functional code will get translated into assembly or machine code which is imperative/ procedural by the compilers. However, unless you write assembly, as humans writing code with high level/ human-readable language, functional programming is the more appropriate way of expression for the listed scenarios
Having some troubles with setting a String option selected in a select2:
With the option: "option string1 /option" used:
$('#select').val("string1").change();
BUT with an option with a value: option value "E" string1 /option :
$('#select').val("E").change(); // you must enter the Value instead of the string
Hopes this help someone struggling with the same issue.
I often do a quick "last week" check as well and the following tends to work well for me and includes today.
DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = Getdate() - 7 /* Seven Days Earlier */
SET @EndDate = Getdate() /* Now */
SELECT id
FROM mytable
WHERE date BETWEEN @StartDate AND @Enddate
If you want this to NOT include today just subtract an extra day from the @EndDate. If I select these two variables today get
@StartDate 2015-11-16 16:34:05.347 /* Last Monday */
@EndDate 2015-11-23 16:34:05.347 /* This Monday */
If I wanted Sunday to Sunday I would have the following.
SET @StartDate = Getdate() - 8 /* Eight Days Earlier */
SET @EndDate = Getdate() - 1 /* Yesterday */
@StartDate 2015-11-15 16:34:05.347 /* Previous Sunday */
@EndDate 2015-11-22 16:34:05.347 /* Last Sunday */
Well this has been beaten to death. :) However I'm still going to provide another answer because I needed something a bit different. This solution is different in that it returns a Business TimeSpan between the start and end, and you can set the business hours of the day, and add holidays. So you can use it to calculate if it happens within a day, across days, over weekends, and even holidays. And you can get just the business days or not by just getting what you need from the returned TimeSpan object. And the way it uses lists of days, you can see how very easy it would be to add the list of non-work days if it's not the typical Sat and Sun. And I tested for a year, and it seems super fast.
I just hope the pasting of the code is accurate. But I know it works.
public static TimeSpan GetBusinessTimespanBetween(
DateTime start, DateTime end,
TimeSpan workdayStartTime, TimeSpan workdayEndTime,
List<DateTime> holidays = null)
{
if (end < start)
throw new ArgumentException("start datetime must be before end datetime.");
// Just create an empty list for easier coding.
if (holidays == null) holidays = new List<DateTime>();
if (holidays.Where(x => x.TimeOfDay.Ticks > 0).Any())
throw new ArgumentException("holidays can not have a TimeOfDay, only the Date.");
var nonWorkDays = new List<DayOfWeek>() { DayOfWeek.Saturday, DayOfWeek.Sunday };
var startTime = start.TimeOfDay;
// If the start time is before the starting hours, set it to the starting hour.
if (startTime < workdayStartTime) startTime = workdayStartTime;
var timeBeforeEndOfWorkDay = workdayEndTime - startTime;
// If it's after the end of the day, then this time lapse doesn't count.
if (timeBeforeEndOfWorkDay.TotalSeconds < 0) timeBeforeEndOfWorkDay = new TimeSpan();
// If start is during a non work day, it doesn't count.
if (nonWorkDays.Contains(start.DayOfWeek)) timeBeforeEndOfWorkDay = new TimeSpan();
else if (holidays.Contains(start.Date)) timeBeforeEndOfWorkDay = new TimeSpan();
var endTime = end.TimeOfDay;
// If the end time is after the ending hours, set it to the ending hour.
if (endTime > workdayEndTime) endTime = workdayEndTime;
var timeAfterStartOfWorkDay = endTime - workdayStartTime;
// If it's before the start of the day, then this time lapse doesn't count.
if (timeAfterStartOfWorkDay.TotalSeconds < 0) timeAfterStartOfWorkDay = new TimeSpan();
// If end is during a non work day, it doesn't count.
if (nonWorkDays.Contains(end.DayOfWeek)) timeAfterStartOfWorkDay = new TimeSpan();
else if (holidays.Contains(end.Date)) timeAfterStartOfWorkDay = new TimeSpan();
// Easy scenario if the times are during the day day.
if (start.Date.CompareTo(end.Date) == 0)
{
if (nonWorkDays.Contains(start.DayOfWeek)) return new TimeSpan();
else if (holidays.Contains(start.Date)) return new TimeSpan();
return endTime - startTime;
}
else
{
var timeBetween = end - start;
var daysBetween = (int)Math.Floor(timeBetween.TotalDays);
var dailyWorkSeconds = (int)Math.Floor((workdayEndTime - workdayStartTime).TotalSeconds);
var businessDaysBetween = 0;
// Now the fun begins with calculating the actual Business days.
if (daysBetween > 0)
{
var nextStartDay = start.AddDays(1).Date;
var dayBeforeEnd = end.AddDays(-1).Date;
for (DateTime d = nextStartDay; d <= dayBeforeEnd; d = d.AddDays(1))
{
if (nonWorkDays.Contains(d.DayOfWeek)) continue;
else if (holidays.Contains(d.Date)) continue;
businessDaysBetween++;
}
}
var dailyWorkSecondsToAdd = dailyWorkSeconds * businessDaysBetween;
var output = timeBeforeEndOfWorkDay + timeAfterStartOfWorkDay;
output = output + new TimeSpan(0, 0, dailyWorkSecondsToAdd);
return output;
}
}
And here is test code: Note that you just have to put this function in a class called DateHelper for the test code to work.
[TestMethod]
public void TestGetBusinessTimespanBetween()
{
var workdayStart = new TimeSpan(8, 0, 0);
var workdayEnd = new TimeSpan(17, 0, 0);
var holidays = new List<DateTime>()
{
new DateTime(2018, 1, 15), // a Monday
new DateTime(2018, 2, 15) // a Thursday
};
var testdata = new[]
{
new
{
expectedMinutes = 0,
start = new DateTime(2016, 10, 19, 9, 50, 0),
end = new DateTime(2016, 10, 19, 9, 50, 0)
},
new
{
expectedMinutes = 10,
start = new DateTime(2016, 10, 19, 9, 50, 0),
end = new DateTime(2016, 10, 19, 10, 0, 0)
},
new
{
expectedMinutes = 5,
start = new DateTime(2016, 10, 19, 7, 50, 0),
end = new DateTime(2016, 10, 19, 8, 5, 0)
},
new
{
expectedMinutes = 5,
start = new DateTime(2016, 10, 19, 16, 55, 0),
end = new DateTime(2016, 10, 19, 17, 5, 0)
},
new
{
expectedMinutes = 15,
start = new DateTime(2016, 10, 19, 16, 50, 0),
end = new DateTime(2016, 10, 20, 8, 5, 0)
},
new
{
expectedMinutes = 10,
start = new DateTime(2016, 10, 19, 16, 50, 0),
end = new DateTime(2016, 10, 20, 7, 55, 0)
},
new
{
expectedMinutes = 5,
start = new DateTime(2016, 10, 19, 17, 10, 0),
end = new DateTime(2016, 10, 20, 8, 5, 0)
},
new
{
expectedMinutes = 0,
start = new DateTime(2016, 10, 19, 17, 10, 0),
end = new DateTime(2016, 10, 20, 7, 5, 0)
},
new
{
expectedMinutes = 545,
start = new DateTime(2016, 10, 19, 12, 10, 0),
end = new DateTime(2016, 10, 20, 12, 15, 0)
},
// Spanning multiple weekdays
new
{
expectedMinutes = 835,
start = new DateTime(2016, 10, 19, 12, 10, 0),
end = new DateTime(2016, 10, 21, 8, 5, 0)
},
// Spanning multiple weekdays
new
{
expectedMinutes = 1375,
start = new DateTime(2016, 10, 18, 12, 10, 0),
end = new DateTime(2016, 10, 21, 8, 5, 0)
},
// Spanning from a Thursday to a Tuesday, 5 mins short of complete day.
new
{
expectedMinutes = 1615,
start = new DateTime(2016, 10, 20, 12, 10, 0),
end = new DateTime(2016, 10, 25, 12, 5, 0)
},
// Spanning from a Thursday to a Tuesday, 5 mins beyond complete day.
new
{
expectedMinutes = 1625,
start = new DateTime(2016, 10, 20, 12, 10, 0),
end = new DateTime(2016, 10, 25, 12, 15, 0)
},
// Spanning from a Friday to a Monday, 5 mins beyond complete day.
new
{
expectedMinutes = 545,
start = new DateTime(2016, 10, 21, 12, 10, 0),
end = new DateTime(2016, 10, 24, 12, 15, 0)
},
// Spanning from a Friday to a Monday, 5 mins short complete day.
new
{
expectedMinutes = 535,
start = new DateTime(2016, 10, 21, 12, 10, 0),
end = new DateTime(2016, 10, 24, 12, 5, 0)
},
// Spanning from a Saturday to a Monday, 5 mins short complete day.
new
{
expectedMinutes = 245,
start = new DateTime(2016, 10, 22, 12, 10, 0),
end = new DateTime(2016, 10, 24, 12, 5, 0)
},
// Spanning from a Saturday to a Sunday, 5 mins beyond complete day.
new
{
expectedMinutes = 0,
start = new DateTime(2016, 10, 22, 12, 10, 0),
end = new DateTime(2016, 10, 23, 12, 15, 0)
},
// Times within the same Saturday.
new
{
expectedMinutes = 0,
start = new DateTime(2016, 10, 22, 12, 10, 0),
end = new DateTime(2016, 10, 23, 12, 15, 0)
},
// Spanning from a Saturday to the Sunday next week.
new
{
expectedMinutes = 2700,
start = new DateTime(2016, 10, 22, 12, 10, 0),
end = new DateTime(2016, 10, 30, 12, 15, 0)
},
// Spanning a year.
new
{
expectedMinutes = 143355,
start = new DateTime(2016, 10, 22, 12, 10, 0),
end = new DateTime(2017, 10, 30, 12, 15, 0)
},
// Spanning a year with 2 holidays.
new
{
expectedMinutes = 142815,
start = new DateTime(2017, 10, 22, 12, 10, 0),
end = new DateTime(2018, 10, 30, 12, 15, 0)
},
};
foreach (var item in testdata)
{
Assert.AreEqual(item.expectedMinutes,
DateHelper.GetBusinessTimespanBetween(
item.start, item.end,
workdayStart, workdayEnd,
holidays)
.TotalMinutes);
}
}
Below is what I do to copy a database from production env to my local env:
As @Renich suggests (but with an important typo that has not been fixed unfortunately), you can also use extended globbing for pattern matching. So you can use the same patterns you use to match files in command arguments (e.g. ls *.pdf
) inside of bash comparisons.
For your particular case you can do the following.
if [[ "${cms}" != @(wordpress|magento|typo3) ]]
The @
means "Matches one of the given patterns". So this is basically saying cms
is not equal to 'wordpress' OR 'magento' OR 'typo3'. In normal regular expression syntax @ is similar to just ^(wordpress|magento|typo3)$
.
Mitch Frazier has two good articles in the Linux Journal on this Pattern Matching In Bash and Bash Extended Globbing.
For more background on extended globbing see Pattern Matching (Bash Reference Manual).
Yes, should try reinstall mysql, but use the --reinstall
flag to force a package reconfiguration. So the operating system service configuration is not skipped:
sudo apt --reinstall install mysql-server
The other li elements are not siblings of the a element.
$('#menu li a').on('click', function(){
$(this).addClass('current').parent().siblings().children().removeClass('current');
});
_
has 3 main conventional uses in Python:
To hold the result of the last executed expression(/statement) in an interactive interpreter session (see docs). This precedent was set by the standard CPython interpreter, and other interpreters have followed suit
For translation lookup in i18n (see the gettext documentation for example), as in code like
raise forms.ValidationError(_("Please enter a correct username"))
As a general purpose "throwaway" variable name:
To indicate that part of a function result is being deliberately ignored (Conceptually, it is being discarded.), as in code like:
label, has_label, _ = text.partition(':')
As part of a function definition (using either def
or lambda
), where
the signature is fixed (e.g. by a callback or parent class API), but
this particular function implementation doesn't need all of the
parameters, as in code like:
def callback(_):
return True
[For a long time this answer didn't list this use case, but it came up often enough, as noted here, to be worth listing explicitly.]
This use case can conflict with the translation lookup use case, so it is necessary to avoid using _
as a throwaway variable in any code block that also uses it for i18n translation (many folks prefer a double-underscore, __
, as their throwaway variable for exactly this reason).
Linters often recognize this use case. For example year, month, day = date()
will raise a lint warning if day
is not used later in the code. The fix, if day
is truly not needed, is to write year, month, _ = date()
. Same with lambda functions, lambda arg: 1.0
creates a function requiring one argument but not using it, which will be caught by lint. The fix is to write lambda _: 1.0
. An unused variable is often hiding a bug/typo (e.g. set day
but use dya
in the next line).
I am working with Visual studio 2010, if you would like to split your files to .h and .cpp, include your cpp header at the end of the .h file
file_name=test.log
# set first K lines:
K=1000
# line count (N):
N=$(wc -l < $file_name)
# length of the bottom file:
L=$(( $N - $K ))
# create the top of file:
head -n $K $file_name > top_$file_name
# create bottom of file:
tail -n $L $file_name > bottom_$file_name
Also, on second thought, split will work in your case, since the first split is larger than the second. Split puts the balance of the input into the last split, so
split -l 300000 file_name
will output xaa
with 300k lines and xab
with 100k lines, for an input with 400k lines.
<input type="checkbox" id="ans" value="1" />
Jquery :
var test= $("#ans").is(':checked')
and it return true or false.
In your function:
$test =($request->get ( 'test' )== "true")? '1' : '0';
If you have a fresh Windows 7, force a Windows Update. That will make the problem go away. It's a shot in the dark, but solved my problem. I struggled with it for a day until I realized that newer eclipse releases give the above error with older .net Framework: everything went fine until a driver installed .net 4.0, and from that point Eclipse editor gave the unhandled event loop exception.
jQuery.fn.doSomething = function() {
//return something with 'this'
};
$('selector:empty').doSomething();
I have not used BeuatifulSoup but maybe the following can help in some tiny way.
import re
import urllib2
stuff = urllib2.urlopen(your_url_goes_here).read() # stuff will contain the *entire* page
# Replace the string Python with your desired regex
results = re.findall('(Python)',stuff)
for i in results:
print i
I'm not suggesting this is a replacement but maybe you can glean some value in the concept until a direct answer comes along.
var input = {"document":
{"people":[
{"name":["Harry Potter"],"age":["18"],"gender":["Male"]},
{"name":["hermione granger"],"age":["18"],"gender":["Female"]},
]}
}
var keys = [];
for(var i = 0;i<input.document.people.length;i++)
{
Object.keys(input.document.people[i]).forEach(function(key){
if(keys.indexOf(key) == -1)
{
keys.push(key);
}
});
}
console.log(keys);
#define USER_IS(c0,c1,c2,c3,c4,c5,c6,c7,c8,c9)\
ch0==c0 && ch1==c1 && ch2==c2 && ch3==c3 && ch4==c4 && ch5==c5 && ch6==c6 && ch7==c7 ;
#define ch0 'j'
#define ch1 'a'
#define ch2 'c'
#define ch3 'k'
#if USER_IS('j','a','c','k',0,0,0,0)
#define USER_VS "queen"
#elif USER_IS('q','u','e','e','n',0,0,0)
#define USER_VS "jack"
#endif
it basically a fixed length static char array initialized manually instead of a variable length static char array initialized automatically always ending with a terminating null char
Visual Studio for Windows Apps is meant to be used to build Windows Store Apps using HTML & Javascript or WinRT and XAML. These can also run on the Windows tablet that run Windows RT.
Visual Studio for Windows Desktop is meant to build applications using Windows Forms or Windows Presentation Foundation, these can run on Windows 8.1 on a normal desktop or on a tablet device like the Surface Pro in desktop mode (like a classic windows application).
This being a very old question but worth adding that I have just had a similar issue where a background colour on a footer
element in my case didn't show. I added a position: relative
which worked.
well there are really enough examples for this, but anyway, here you go
using System;
using System.Security.Cryptography;
namespace RsaCryptoExample
{
static class Program
{
static void Main()
{
//lets take a new CSP with a new 2048 bit rsa key pair
var csp = new RSACryptoServiceProvider(2048);
//how to get the private key
var privKey = csp.ExportParameters(true);
//and the public key ...
var pubKey = csp.ExportParameters(false);
//converting the public key into a string representation
string pubKeyString;
{
//we need some buffer
var sw = new System.IO.StringWriter();
//we need a serializer
var xs = new System.Xml.Serialization.XmlSerializer(typeof(RSAParameters));
//serialize the key into the stream
xs.Serialize(sw, pubKey);
//get the string from the stream
pubKeyString = sw.ToString();
}
//converting it back
{
//get a stream from the string
var sr = new System.IO.StringReader(pubKeyString);
//we need a deserializer
var xs = new System.Xml.Serialization.XmlSerializer(typeof(RSAParameters));
//get the object back from the stream
pubKey = (RSAParameters)xs.Deserialize(sr);
}
//conversion for the private key is no black magic either ... omitted
//we have a public key ... let's get a new csp and load that key
csp = new RSACryptoServiceProvider();
csp.ImportParameters(pubKey);
//we need some data to encrypt
var plainTextData = "foobar";
//for encryption, always handle bytes...
var bytesPlainTextData = System.Text.Encoding.Unicode.GetBytes(plainTextData);
//apply pkcs#1.5 padding and encrypt our data
var bytesCypherText = csp.Encrypt(bytesPlainTextData, false);
//we might want a string representation of our cypher text... base64 will do
var cypherText = Convert.ToBase64String(bytesCypherText);
/*
* some transmission / storage / retrieval
*
* and we want to decrypt our cypherText
*/
//first, get our bytes back from the base64 string ...
bytesCypherText = Convert.FromBase64String(cypherText);
//we want to decrypt, therefore we need a csp and load our private key
csp = new RSACryptoServiceProvider();
csp.ImportParameters(privKey);
//decrypt and strip pkcs#1.5 padding
bytesPlainTextData = csp.Decrypt(bytesCypherText, false);
//get our original plainText back...
plainTextData = System.Text.Encoding.Unicode.GetString(bytesPlainTextData);
}
}
}
as a side note: the calls to Encrypt() and Decrypt() have a bool parameter that switches between OAEP and PKCS#1.5 padding ... you might want to choose OAEP if it's available in your situation
For just digits after a currency sign : \(.+\s*\d+\s*\)
should work
Or \(.+\)
for anything inside brackets
Below settings are worked well for me,
"editor.insertSpaces": false,
"editor.formatOnSave": true, // only if you want auto fomattting on saving the file
"editor.detectIndentation": false
Above settings will reflect and applied to every files. You don't need to indent/format every file manually.
There are multiple ways to make components communicate. Some can be suited to your usecase. Here is a list of some I've found useful to know.
const Child = ({fromChildToParentCallback}) => (
<div onClick={() => fromChildToParentCallback(42)}>
Click me
</div>
);
class Parent extends React.Component {
receiveChildValue = (value) => {
console.log("Parent received value from child: " + value); // value is 42
};
render() {
return (
<Child fromChildToParentCallback={this.receiveChildValue}/>
)
}
}
Here the child component will call a callback provided by the parent with a value, and the parent will be able to get the value provided by the children in the parent.
If you build a feature/page of your app, it's better to have a single parent managing the callbacks/state (also called container
or smart component
), and all childs to be stateless, only reporting things to the parent. This way you can easily "share" the state of the parent to any child that need it.
React Context permits to hold state at the root of your component hierarchy, and be able to inject this state easily into very deeply nested components, without the hassle to have to pass down props to every intermediate components.
Until now, context was an experimental feature, but a new API is available in React 16.3.
const AppContext = React.createContext(null)
class App extends React.Component {
render() {
return (
<AppContext.Provider value={{language: "en",userId: 42}}>
<div>
...
<SomeDeeplyNestedComponent/>
...
</div>
</AppContext.Provider>
)
}
};
const SomeDeeplyNestedComponent = () => (
<AppContext.Consumer>
{({language}) => <div>App language is currently {language}</div>}
</AppContext.Consumer>
);
The consumer is using the render prop / children function pattern
Check this blog post for more details.
Before React 16.3, I'd recommend using react-broadcast which offer quite similar API, and use former context API.
Use a portal when you'd like to keep 2 components close together to make them communicate with simple functions, like in normal parent / child, but you don't want these 2 components to have a parent/child relationship in the DOM, because of visual / CSS constraints it implies (like z-index, opacity...).
In this case you can use a "portal". There are different react libraries using portals, usually used for modals, popups, tooltips...
Consider the following:
<div className="a">
a content
<Portal target="body">
<div className="b">
b content
</div>
</Portal>
</div>
Could produce the following DOM when rendered inside reactAppContainer
:
<body>
<div id="reactAppContainer">
<div className="a">
a content
</div>
</div>
<div className="b">
b content
</div>
</body>
You define a slot somewhere, and then you fill the slot from another place of your render tree.
import { Slot, Fill } from 'react-slot-fill';
const Toolbar = (props) =>
<div>
<Slot name="ToolbarContent" />
</div>
export default Toolbar;
export const FillToolbar = ({children}) =>
<Fill name="ToolbarContent">
{children}
</Fill>
This is a bit similar to portals except the filled content will be rendered in a slot you define, while portals generally render a new dom node (often a children of document.body)
Check react-slot-fill library
As stated in the React documentation:
For communication between two components that don't have a parent-child relationship, you can set up your own global event system. Subscribe to events in componentDidMount(), unsubscribe in componentWillUnmount(), and call setState() when you receive an event.
There are many things you can use to setup an event bus. You can just create an array of listeners, and on event publish, all listeners would receive the event. Or you can use something like EventEmitter or PostalJs
Flux is basically an event bus, except the event receivers are stores. This is similar to the basic event bus system except the state is managed outside of React
Original Flux implementation looks like an attempt to do Event-sourcing in a hacky way.
Redux is for me the Flux implementation that is the closest from event-sourcing, an benefits many of event-sourcing advantages like the ability to time-travel. It is not strictly linked to React and can also be used with other functional view libraries.
Egghead's Redux video tutorial is really nice and explains how it works internally (it really is simple).
Cursors are coming from ClojureScript/Om and widely used in React projects. They permit to manage the state outside of React, and let multiple components have read/write access to the same part of the state, without needing to know anything about the component tree.
Many implementations exists, including ImmutableJS, React-cursors and Omniscient
Edit 2016: it seems that people agree cursors work fine for smaller apps but it does not scale well on complex apps. Om Next does not have cursors anymore (while it's Om that introduced the concept initially)
The Elm architecture is an architecture proposed to be used by the Elm language. Even if Elm is not ReactJS, the Elm architecture can be done in React as well.
Dan Abramov, the author of Redux, did an implementation of the Elm architecture using React.
Both Redux and Elm are really great and tend to empower event-sourcing concepts on the frontend, both allowing time-travel debugging, undo/redo, replay...
The main difference between Redux and Elm is that Elm tend to be a lot more strict about state management. In Elm you can't have local component state or mount/unmount hooks and all DOM changes must be triggered by global state changes. Elm architecture propose a scalable approach that permits to handle ALL the state inside a single immutable object, while Redux propose an approach that invites you to handle MOST of the state in a single immutable object.
While the conceptual model of Elm is very elegant and the architecture permits to scale well on large apps, it can in practice be difficult or involve more boilerplate to achieve simple tasks like giving focus to an input after mounting it, or integrating with an existing library with an imperative interface (ie JQuery plugin). Related issue.
Also, Elm architecture involves more code boilerplate. It's not that verbose or complicated to write but I think the Elm architecture is more suited to statically typed languages.
Libraries like RxJS, BaconJS or Kefir can be used to produce FRP streams to handle communication between components.
You can try for example Rx-React
I think using these libs is quite similar to using what the ELM language offers with signals.
CycleJS framework does not use ReactJS but uses vdom. It share a lot of similarities with the Elm architecture (but is more easy to use in real life because it allows vdom hooks) and it uses RxJs extensively instead of functions, and can be a good source of inspiration if you want to use FRP with React. CycleJs Egghead videos are nice to understand how it works.
CSP (Communicating Sequential Processes) are currently popular (mostly because of Go/goroutines and core.async/ClojureScript) but you can use them also in javascript with JS-CSP.
James Long has done a video explaining how it can be used with React.
A saga is a backend concept that comes from the DDD / EventSourcing / CQRS world, also called "process manager". It is being popularized by the redux-saga project, mostly as a replacement to redux-thunk for handling side-effects (ie API calls etc). Most people currently think it only services for side-effects but it is actually more about decoupling components.
It is more of a compliment to a Flux architecture (or Redux) than a totally new communication system, because the saga emit Flux actions at the end. The idea is that if you have widget1 and widget2, and you want them to be decoupled, you can't fire action targeting widget2 from widget1. So you make widget1 only fire actions that target itself, and the saga is a "background process" that listens for widget1 actions, and may dispatch actions that target widget2. The saga is the coupling point between the 2 widgets but the widgets remain decoupled.
If you are interested take a look at my answer here
If you want to see an example of the same little app using these different styles, check the branches of this repository.
I don't know what is the best option in the long term but I really like how Flux looks like event-sourcing.
If you don't know event-sourcing concepts, take a look at this very pedagogic blog: Turning the database inside out with apache Samza, it is a must-read to understand why Flux is nice (but this could apply to FRP as well)
I think the community agrees that the most promising Flux implementation is Redux, which will progressively allow very productive developer experience thanks to hot reloading. Impressive livecoding ala Bret Victor's Inventing on Principle video is possible!
If you want a uniformly distributed pseudorandom long in the range of [0,m
), try using the modulo operator and the absolute value method combined with the nextLong()
method as seen below:
Math.abs(rand.nextLong()) % m;
Where rand
is your Random object.
The modulo operator divides two numbers and outputs the remainder of those numbers. For example, 3 % 2
is 1
because the remainder of 3 and 2 is 1.
Since nextLong()
generates a uniformly distributed pseudorandom long in the range of [-(2^48),2^48) (or somewhere in that range), you will need to take the absolute value of it. If you don't, the modulo of the nextLong()
method has a 50% chance of returning a negative value, which is out of the range [0,m
).
What you initially requested was a uniformly distributed pseudorandom long in the range of [0,100). The following code does so:
Math.abs(rand.nextLong()) % 100;
Add System.Web.Extensions as a reference to your project
For Ref.
Alternatively,
<style type="text/css">
#example {
display: block;
width: 30px;
height: 10px;
background: url(../images/example.png) no-repeat;
text-indent: -9999px;
}
</style>
<a href="http://www.example.com" id="example">See an example!</a>
More wordy, but it may benefit SEO, and it will look like nice simple text with CSS disabled.
you can do this using OUT parameter and CROSS JOIN
CREATE OR REPLACE FUNCTION get_object_fields(my_name text, OUT f1 text, OUT f2 text)
AS $$
SELECT t1.name, t2.name
FROM table1 t1
CROSS JOIN table2 t2
WHERE t1.name = my_name AND t2.name = my_name;
$$ LANGUAGE SQL;
then use it as a table:
select get_object_fields( 'Pending') ;
get_object_fields
-------------------
(Pending,code)
(1 row)
or
select * from get_object_fields( 'Pending');
f1 | f
---------+---------
Pending | code
(1 row)
or
select (get_object_fields( 'Pending')).f1;
f1
---------
Pending
(1 row)
The proper function is int fileno(FILE *stream)
. It can be found in <stdio.h>
, and is a POSIX standard but not standard C.
Make sure you exactly cleanup what the console says. For example if a subfolder (a package) is locked:
svn: E155004: Commit failed (details follow):
svn: E155004: Working copy 'C:\Users\laura\workspace\tparser\src\de\test\order' locked
svn: E155004: 'C:\Users\laura\workspace\tparser\src\de\test\order' is already locked.
cleanup C:/Users/liparulol/workspace/tparser/src/de/mc/etn/parsers/order
Then you need to cleanup the specified folder and not the whole project. If you are in eclipse right click on the package, not on the project folder and execute the clean up.
My goodness!! I spent hours to resolve this issue.
On XCode 7.3 I was having project with no issues.
Mistake I did
I just Added physical folders and moved my files into them, problem started.
I tried everything
nothing worked :(
How I resolved
I was about create new project and then I just deleted those physical folders I added, clean build and YESS!!
It works!!
In a UIView extension:
func addBlurredBackground(style: UIBlurEffect.Style) {
let blurEffect = UIBlurEffect(style: style)
let blurView = UIVisualEffectView(effect: blurEffect)
blurView.frame = self.frame
blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
self.addSubview(blurView)
self.sendSubviewToBack(blurView)
}
This example made everything clear for me:
As you can see setSoTimeout prevent the program to hang! It wait for SO_TIMEOUT
time! if it does not get any signal it throw exception! It means that time expired!
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;
public class SocketTest extends Thread {
private ServerSocket serverSocket;
public SocketTest() throws IOException {
serverSocket = new ServerSocket(8008);
serverSocket.setSoTimeout(10000);
}
public void run() {
while (true) {
try {
System.out.println("Waiting for client on port " + serverSocket.getLocalPort() + "...");
Socket client = serverSocket.accept();
System.out.println("Just connected to " + client.getRemoteSocketAddress());
client.close();
} catch (SocketTimeoutException s) {
System.out.println("Socket timed out!");
break;
} catch (IOException e) {
e.printStackTrace();
break;
}
}
}
public static void main(String[] args) {
try {
Thread t = new SocketTest();
t.start();
} catch (IOException e) {
e.printStackTrace();
}
}
}
A Solution to Touch and Click in jQuery (without jQuery Mobile)
Let the jQuery Mobile site build your download and add it to your page. For a quick test, you can also use the script provided below.
Next, we can rewire all calls to $(…).click() using the following snippet:
<script src=”http://u1.linnk.it/qc8sbw/usr/apps/textsync/upload/jquery-mobile-touch.value.js”></script>
<script>
$.fn.click = function(listener) {
return this.each(function() {
var $this = $( this );
$this.on(‘vclick’, listener);
});
};
</script>
Just use the insert query and put the NULL keyword without quotes. That will work-
INSERT INTO `myDatabase`.`myTable` (`myColumn`) VALUES (NULL);
I can't fault any of the answers here for the OP accepted one of them as resolving their problem. However, I found them flawed in one respect. When you output the result of the assignment to the variable, it contains numerous blank lines, not just the sought after answer. Example:
PS C:\brh> [datetime](Get-ItemProperty -Path .\deploy.ps1 -Name LastWriteTime).LastWriteTime
Friday, December 12, 2014 2:33:09 PM
PS C:\brh>
I'm a fan of two things in code, succinctness and correctness. brianary has the right of it for succinctness with a tip of the hat to Roger Lipscombe but both miss correctness due to the extra lines in the result. Here's what I think the OP was looking for since it's what got me over the finish line.
PS C:\brh> (ls .\deploy.ps1).LastWriteTime.DateTime
Friday, December 12, 2014 2:33:09 PM
PS C:\brh>
Note the lack of extra lines, only the one that PowerShell uses to separate prompts. Now this can be assigned to a variable for comparison or, as in my case, stored in a file for reading and comparison in a later session.
You can declare an event with the following code:
public event EventHandler MyOwnEvent;
A custom delegate type instead of EventHandler can be used if needed.
You can find detailed information/tutorials on the use of events in .NET in the article Events Tutorial (MSDN).
use a UDF (user defined function).
CREATE FUNCTION isnumber(inputValue VARCHAR(50))
RETURNS INT
BEGIN
IF (inputValue REGEXP ('^[0-9]+$'))
THEN
RETURN 1;
ELSE
RETURN 0;
END IF;
END;
Then when you query
select isnumber('383XXXX')
--returns 0
select isnumber('38333434')
--returns 1
select isnumber(mycol) mycol1, col2, colx from tablex; -- will return 1s and 0s for column mycol1
--you can enhance the function to take decimals, scientific notation , etc...
The advantage of using a UDF is that you can use it on the left or right side of your "where clause" comparison. this greatly simplifies your SQL before being sent to the database:
SELECT * from tablex where isnumber(columnX) = isnumber('UnkownUserInput');
hope this helps.
If you prefer to use style='{'
, fmt="{asctime}.{msecs:0<3.0f}"
will 0-pad your microseconds to three places for consistency.
If you use the static method and load the properties file from the classpath folder so you can use the below code :
//load a properties file from class path, inside static method
Properties prop = new Properties();
prop.load(Classname.class.getClassLoader().getResourceAsStream("foo.properties"));
You can bulk import all aliases from one keystore to another:
keytool -importkeystore -srckeystore source.jks -destkeystore dest.jks
Function arguments are passed either by-value or by-sharing, but never ever by reference in JavaScript!
Primitive types are passed by-value:
var num = 123, str = "foo";
function f(num, str) {
num += 1;
str += "bar";
console.log("inside of f:", num, str);
}
f(num, str);
console.log("outside of f:", num, str);
_x000D_
Reassignments inside a function scope are not visible in the surrounding scope.
This also applies to String
s, which are a composite data type and yet immutable:
var str = "foo";
function f(str) {
str[0] = "b"; // doesn't work, because strings are immutable
console.log("inside of f:", str);
}
f(str);
console.log("outside of f:", str);
_x000D_
Objects, that is to say all types that are not primitives, are passed by-sharing. A variable that holds a reference to an object actually holds merely a copy of this reference. If JavaScript would pursue a call-by-reference evaluation strategy, the variable would hold the original reference. This is the crucial difference between by-sharing and by-reference.
What are the practical consequences of this distinction?
var o = {x: "foo"}, p = {y: 123};
function f(o, p) {
o.x = "bar"; // Mutation
p = {x: 456}; // Reassignment
console.log("o inside of f:", o);
console.log("p inside of f:", p);
}
f(o, p);
console.log("o outside of f:", o);
console.log("p outside of f:", p);
_x000D_
Mutating means to modify certain properties of an existing Object
. The reference copy that a variable is bound to and that refers to this object remains the same. Mutations are thus visible in the caller's scope.
Reassigning means to replace the reference copy bound to a variable. Since it is only a copy, other variables holding a copy of the same reference remain unaffected. Reassignments are thus not visible in the caller's scope like they would be with a call-by-reference evaluation strategy.
Further information on evaluation strategies in ECMAScript.
I use div instead of tables and am able to target classes within the main class, as below:
.main {
.width: 800px;
.margin: 0 auto;
.text-align: center;
}
.main .table {
width: 80%;
}
.main .row {
/ ***something ***/
}
.main .column {
font-size: 14px;
display: inline-block;
}
.main .left {
width: 140px;
margin-right: 5px;
font-size: 12px;
}
.main .right {
width: auto;
margin-right: 20px;
color: #fff;
font-size: 13px;
font-weight: normal;
}
<div class="main">
<div class="table">
<div class="row">
<div class="column left">Swing Over Bed</div>
<div class="column right">650mm</div>
<div class="column left">Swing In Gap</div>
<div class="column right">800mm</div>
</div>
</div>
</div>
If you want to style a particular "cell" exclusively you can use another sub-class or the id of the div e.g:
.main #red { color: red; }
<div class="main">
<div class="table">
<div class="row">
<div id="red" class="column left">Swing Over Bed</div>
<div class="column right">650mm</div>
<div class="column left">Swing In Gap</div>
<div class="column right">800mm</div>
</div>
</div>
</div>
As soon as you're displaying content from another domain, you're basically trusting that domain not to serve-up malware.
There's nothing wrong with iframes per se. If you control the content of the iframe, they're perfectly safe.
Try
def self.search(search, page = 1 )
paginate :per_page => 5, :page => page,
:conditions => ["name LIKE ? OR postal_code like ?", "%#{search}%","%#{search}%"], order => 'name'
end
See the docs on AREL conditions for more info.
I think you just have incorrect casing in the format string. According to the documentation this should work for you: MM/DD/YYYY
For Oracle 11g:
SELECT COL1
FROM TABLE1
WHERE length(COL1) = (SELECT max(length(COL1)) FROM TABLE1);
Try this:
XmlDocument doc = new XmlDocument();
doc.Load(@"C:\Path\To\Xml\File.xml");
Or alternatively if you have the XML in a string use the LoadXml
method.
Once you have it loaded, you can use SelectNodes
and SelectSingleNode
to query specific values, for example:
XmlNode node = doc.SelectSingleNode("//Company/Email/text()");
// node.Value contains "[email protected]"
Finally, note that your XML is invalid as it doesn't contain a single root node. It must be something like this:
<Data>
<Employee>
<Name>Test</Name>
<ID>123</ID>
</Employee>
<Company>
<Name>ABC</Name>
<Email>[email protected]</Email>
</Company>
</Data>
Download it from here and extract LatoOFL.rar
then go to TTF and open this font-face-generator click at Choose File
choose font which you want to use and click at generate then download it and then go html
file open it and you see the code like this
@font-face {
font-family: "Lato Black";
src: url('698242188-Lato-Bla.eot');
src: url('698242188-Lato-Bla.eot?#iefix') format('embedded-opentype'),
url('698242188-Lato-Bla.svg#Lato Black') format('svg'),
url('698242188-Lato-Bla.woff') format('woff'),
url('698242188-Lato-Bla.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
body{
font-family: "Lato Black";
direction: ltr;
}
change the src code and give the url where your this font directory placed, now you can use it at your website...
If you don't want to download it use this
<link type='text/css' href='http://fonts.googleapis.com/css?family=Lato:400,700' />
Perhaps you can use JavaScript to solve your cross-browser problem. It uses a different escape mechanism, one with which you're obviously already familiar:
(reference-to-the-tag).title = "Some \"text\"";
It doesn't strictly separate the functions of HTML, JavaScript, and CSS the way folks want you to nowadays, but whom do you need to make happy? Your users or techies you don't know?
Swift version of the answer by nirg:
extension CGPoint {
func isInsidePolygon(vertices: [CGPoint]) -> Bool {
guard !vertices.isEmpty else { return false }
var j = vertices.last!, c = false
for i in vertices {
let a = (i.y > y) != (j.y > y)
let b = (x < (j.x - i.x) * (y - i.y) / (j.y - i.y) + i.x)
if a && b { c = !c }
j = i
}
return c
}
}
re.sub
is definitely what you are looking for. And so you know, you don't need the anchors and the wildcards.
re.sub(r"(?i)interfaceOpDataFile", "interfaceOpDataFile %s" % filein, line)
will do the same thing--matching the first substring that looks like "interfaceOpDataFile" and replacing it.
You could use CSS to do that, but it wouldn't be supported in IE8-. You can use some site like http://borderradius.com to come up with actual CSS you'd use, which would look something like this (again, depending on how many browsers you're trying to support):
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
If you want to fake a $_GET (or a $_POST) when including a file, you can use it like you would use any other var, like that:
$_GET['key'] = 'any get value you want';
include('your_other_file.php');
if you are on a dev environment and want access some service already running on localhost/host machine. in docker for mac you have another option.use docker.for.mac.localhost instead of localhost in docker container. docker.for.mac.host.internal should be used instead of docker.for.mac.localhost from Docker Community Edition 17.12.0-ce-mac46 2018-01-09. this allows you to connect to service running on your on mac from within a docker container.please refer below links
next
and break
seem to do the correct thing in this simplified example!
class Bar
def self.do_things
Foo.some_method(1..10) do |x|
next if x == 2
break if x == 9
print "#{x} "
end
end
end
class Foo
def self.some_method(targets, &block)
targets.each do |target|
begin
r = yield(target)
rescue => x
puts "rescue #{x}"
end
end
end
end
Bar.do_things
output: 1 3 4 5 6 7 8
Please verify that the required plug-ins are enabled in Settings | Plugins, most likely you've disabled several of them, that's why you don't see all the facet options.
For the step by step tutorial, see: Creating a simple Web application and deploying it to Tomcat.
Its Simple Way To Pass Header
function get_data($url) {
$ch = curl_init();
$timeout = 5;
$username = 'c4f727b9646045e58508b20ac08229e6'; // Put Username
$password = ''; // Put Password
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_USERPWD, "$username:$password"); // Add This Line
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
$url = "https://storage.scrapinghub.com/items/397187/2/127";
$data = get_data($url);
echo '<pre>';`print_r($data_json);`die; // For Print Value
Reviving an old thread, but this pretty clean approach was not listed.
function mycommand() {
ssh [email protected] <<+
cd testdir;./test.sh "$1"
+
}
For convenience, here is Irritate's algorithm in a Java form. Add error checking, exception handling and tweak as necessary.
public class Algorithms {
public static double scale(final double valueIn, final double baseMin, final double baseMax, final double limitMin, final double limitMax) {
return ((limitMax - limitMin) * (valueIn - baseMin) / (baseMax - baseMin)) + limitMin;
}
}
Tester:
final double baseMin = 0.0;
final double baseMax = 360.0;
final double limitMin = 90.0;
final double limitMax = 270.0;
double valueIn = 0;
System.out.println(Algorithms.scale(valueIn, baseMin, baseMax, limitMin, limitMax));
valueIn = 360;
System.out.println(Algorithms.scale(valueIn, baseMin, baseMax, limitMin, limitMax));
valueIn = 180;
System.out.println(Algorithms.scale(valueIn, baseMin, baseMax, limitMin, limitMax));
90.0
270.0
180.0
Use pass for no-op:
if x == 0:
pass
else:
print "x not equal 0"
And here's another example:
def f():
pass
Or:
class c:
pass
Change the user to postgres :
su - postgres
Create User for Postgres
$ createuser testuser
Create Database
$ createdb testdb
Acces the postgres Shell
psql ( enter the password for postgressql)
Provide the privileges to the postgres user
$ alter user testuser with encrypted password 'qwerty';
$ grant all privileges on database testdb to testuser;
$output = curl_exec($ch);
$result = iconv("Windows-1251", "UTF-8", $output);
If you have PHP installed as a command line tool (try issuing php
to the terminal and see if it works), your shebang (#!
) line needs to look like this:
#!/usr/bin/php
Put that at the top of your script, make it executable (chmod +x myscript.php
), and make a Cron job to execute that script (same way you'd execute a bash script).
You can also use php myscript.php
.
I was also having this issue of "You have mail" coming up every time I started Terminal.
What I discovered is this.
Something I'd installed (not entirely sure what, but possibly a script or something associated with an Alfred Workflow [at a guess]) made a change to the OS X system to start presenting Terminal bash notifications. Prior to that, it appears Wordpress had attempted to use the Local Mail system to send a message. The message bounced, due to it having an invalid Recipient address. The bounced message then ended up in the local system mail inbox. So Terminal (bash) was then notifying me that "You have mail".
You can access the mail by simply using the command
mail
This launches you into Mail, and it will right away show you a list of messages that are stored there. If you want to see the content of the first message, use
t
This will show you the content of the first message, in full. You'll need to scroll down through the message to view it all, by hitting the down-arrow
key.
If you want to jump to the end of the message, use the
spacebar
If you want to abort viewing the message, use
q
To view the next message in the queue use
n
... assuming there's more than one message.
NOTE: You need to use these commands at the mail ?
command prompt. They won't work whilst you are in the process of viewing a message. Hitting n
whilst viewing a message will just cause an error message related to regular expressions. So, if in the midst of viewing a message, hit q
to quit from that, or hit spacebar
to jump to the end of the message, and then at the ?
prompt, hit n
.
Viewing the content of the messages in this way may help you identify what attempted to send the message(s).
You can also view a specific message by just inputting its number at the ?
prompt. 3
, for instance, will show you the content of the third message (if there are that many in there).
Use the d
command (at the ?
command prompt )
d [message number]
To delete each message when you are done looking at them. For example, d 2
will delete message number 2. Or you can delete a list of messages, such as d 1 2 5 7
. Or you can delete a range of messages with (for example), d 3-10
.
You can find the message numbers in the list of messages mail shows you.
To delete all the messages, from the mail prompt (?
) use the command d *
.
As per a comment on this post, you will need to use q
to quit mail, which also saves any changes.
If you'd like to see the mail all in one output, use this command at the bash prompt (i.e. not from within mail, but from your regular command prompt):
cat /var/mail/<username>
And, if you wish to delete the emails all in one hit, use this command
sudo rm /var/mail/<username>
In my particular case, there were a number of messages. It looks like the one was a returned message that bounced. It was sent by a local Wordpress installation. It was a notification for when user "Admin" (me) changed its password. Two additional messages where there. Both seemed to be to the same incident.
What I don't know, and can't answer for you either, is WHY I only recently started seeing this mail notification each time I open Terminal. The mails were generated a couple of months ago, and yet I only noticed this "you have mail" appearing in the last few weeks. I suspect it's the result of something a workflow I installed in Alfred, and that workflow using Terminal bash to provide notifications... or something along those lines.
If you have no interest in determining the source of the messages, and just wish to get rid of them, it may be easier to do so without using the mail
command (which can be somewhat fiddly). As pointed out by a few other people, you can use this command instead:
sudo rm /var/mail/YOURUSERNAME
Things changed with Git 2.0 (2014-05-28):
-A
is now the default--ignore-removal
.git add -u
and git add -A
in a subdirectory without paths on the command line operate on the entire tree.So for Git 2 the answer is:
git add .
and git add -A .
add new/modified/deleted files in the current directorygit add --ignore-removal .
adds new/modified files in the current directorygit add -u .
adds modified/deleted files in the current directoryThis code capitalize words after dot:
function capitalizeAfterPeriod(input) {
var text = '';
var str = $(input).val();
text = convert(str.toLowerCase().split('. ')).join('. ');
var textoFormatado = convert(text.split('.')).join('.');
$(input).val(textoFormatado);
}
function convert(str) {
for(var i = 0; i < str.length; i++){
str[i] = str[i].split('');
if (str[i][0] !== undefined) {
str[i][0] = str[i][0].toUpperCase();
}
str[i] = str[i].join('');
}
return str;
}
@RequestMapping(value="/add/image", method=RequestMethod.POST)
public ResponseEntity upload(@RequestParam("id") Long id, HttpServletResponse response, HttpServletRequest request)
{
try {
MultipartHttpServletRequest multipartRequest=(MultipartHttpServletRequest)request;
Iterator<String> it=multipartRequest.getFileNames();
MultipartFile multipart=multipartRequest.getFile(it.next());
String fileName=id+".png";
String imageName = fileName;
byte[] bytes=multipart.getBytes();
BufferedOutputStream stream= new BufferedOutputStream(new FileOutputStream("src/main/resources/static/image/book/"+fileName));;
stream.write(bytes);
stream.close();
return new ResponseEntity("upload success", HttpStatus.OK);
} catch (Exception e) {
e.printStackTrace();
return new ResponseEntity("Upload fialed", HttpStatus.BAD_REQUEST);
}
}
For people still looking a couple of years later, things have changed a bit. You can now use the queue
for .fadeIn()
as well so that it will work like this:
$('.tooltip').fadeIn({queue: false, duration: 'slow'});
$('.tooltip').animate({ top: "-10px" }, 'slow');
This has the benefit of working on display: none
elements so you don't need the extra two lines of code.
Can you update any other record within this table, or is this table heavily used? What I am thinking is that while it is attempting to acquire a lock that it needs to update this record the timeout that was set has timed out. You may be able to increase the time which may help.
Console.Log
// get a new date (locale machine date time)_x000D_
var date = new Date();_x000D_
// get the date as a string_x000D_
var n = date.toDateString();_x000D_
// get the time as a string_x000D_
var time = date.toLocaleTimeString();_x000D_
_x000D_
// log the date in the browser console_x000D_
console.log('date:', n);_x000D_
// log the time in the browser console_x000D_
console.log('time:',time);
_x000D_
DIV
// get a new date (locale machine date time)_x000D_
var date = new Date();_x000D_
// get the date as a string_x000D_
var n = date.toDateString();_x000D_
// get the time as a string_x000D_
var time = date.toLocaleTimeString();_x000D_
_x000D_
// find the html element with the id of time_x000D_
// set the innerHTML of that element to the date a space the time_x000D_
document.getElementById('time').innerHTML = n + ' ' + time;
_x000D_
<div id='time'></div>
_x000D_
Note: these functions aren't fully cross browser supported
//Fri Aug 30 2013 4:36 pm_x000D_
console.log(formatAMPM(new Date()));_x000D_
_x000D_
//using your function (passing in date)_x000D_
function formatAMPM(date) {_x000D_
// gets the hours_x000D_
var hours = date.getHours();_x000D_
// gets the day_x000D_
var days = date.getDay();_x000D_
// gets the month_x000D_
var minutes = date.getMinutes();_x000D_
// gets AM/PM_x000D_
var ampm = hours >= 12 ? 'pm' : 'am';_x000D_
// converts hours to 12 hour instead of 24 hour_x000D_
hours = hours % 12;_x000D_
// converts 0 (midnight) to 12_x000D_
hours = hours ? hours : 12; // the hour '0' should be '12'_x000D_
// converts minutes to have leading 0_x000D_
minutes = minutes < 10 ? '0'+ minutes : minutes;_x000D_
_x000D_
// the time string_x000D_
var time = hours + ':' + minutes + ' ' + ampm;_x000D_
_x000D_
// gets the match for the date string we want_x000D_
var match = date.toString().match(/\w{3} \w{3} \d{1,2} \d{4}/);_x000D_
_x000D_
//the result_x000D_
return match[0] + ' ' + time;_x000D_
}
_x000D_
From what I have observed, git merge tends to keep the branches separate even after merging, whereas rebase then merge combines it into one single branch. The latter comes out much cleaner, whereas in the former, it would be easier to find out which commits belong to which branch even after merging.
Just to add to the other answers, there are still noteworthy differences here, specifically when dealing with <svg>
elements.
I have used both .childNodes
and .children
and have preferred working with the HTMLCollection
delivered by the .children
getter.
Today however, I ran into issues with IE/Edge failing when using .children
on an <svg>
.
While .children
is supported in IE on basic HTML elements, it isn't supported on document/document fragments, or SVG elements.
For me, I was able to simply grab the needed elements via .childNodes[n]
because I don't have extraneous text nodes to worry about. You may be able to do the same, but as mentioned elsewhere above, don't forget that you may run into unexpected elements.
Hope this is helpful to someone scratching their head trying to figure out why .children
works elsewhere in their js on modern IE and fails on document or SVG elements.
It is actually possible only using CSS, however, the image you use to replace must be the same size as the original facebook log in button. Fortunately Facebook delivers the button in different sizes.
From facebook:
size - Different sized buttons: small, medium, large, xlarge - the default is medium. https://developers.facebook.com/docs/reference/plugins/login/
Set the login iframe opacity to 0 and show a background image in the parent div
.fb_iframe_widget iframe {
opacity: 0;
}
.fb_iframe_widget {
background-image: url(another-button.png);
background-repeat: no-repeat;
}
If you use an image that is bigger than the original facebook button, the part of the image that is outside the width and height of the original button will not be clickable.
In nano 2.2.6 the line in ~/.nanorc to do this seems to be
set tabsize 4
Setting tabspace gave me the error: 'Unknown flag "tabspace"'
You can enable connection logging. For SQL Server 2008, you can enable Login Auditing. In SQL Server Management Studio, open SQL Server Properties > Security > Login Auditing select "Both failed and successful logins".
Make sure to restart the SQL Server service.
Once you've done that, connection attempts should be logged into SQL's error log. The physical logs location can be determined here.
This works
<a href="#" id="sampleApp" onclick="myFunction(); return false;">Click Here</a>
The line
Object EchoServer0;
says that you are allocating an Object
named EchoServer0
. This has nothing to do with the class EchoServer0
. Furthermore, the object is not initialized, so EchoServer0
is null
. Classes and identifiers have separate namespaces. This will actually compile:
String String = "abc"; // My use of String String was deliberate.
Please keep to the Java naming standards: classes begin with a capital letter, identifiers begin with a small letter, constants and enum
s are all-capitals.
public final String ME = "Eric Jablow";
public final double GAMMA = 0.5772;
public enum Color { RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET}
public COLOR background = Color.RED;
Just turn the LIKE around
SELECT * FROM customers
WHERE 'Robert Bob Smith III, PhD.' LIKE CONCAT('%',name,'%')
Python 3.4 and later offer pathlib in the standard library. You could do:
from pathlib import Path
asm_pths = [pth for pth in Path.cwd().iterdir()
if pth.suffix == '.asm']
Or if you don't like list comprehensions:
asm_paths = []
for pth in Path.cwd().iterdir():
if pth.suffix == '.asm':
asm_pths.append(pth)
Path
objects can easily be converted to strings.
This will print duplicate lines only, with counts:
sort FILE | uniq -cd
or, with GNU long options (on Linux):
sort FILE | uniq --count --repeated
on BSD and OSX you have to use grep to filter out unique lines:
sort FILE | uniq -c | grep -v '^ *1 '
For the given example, the result would be:
3 123
2 234
If you want to print counts for all lines including those that appear only once:
sort FILE | uniq -c
or, with GNU long options (on Linux):
sort FILE | uniq --count
For the given input, the output is:
3 123
2 234
1 345
In order to sort the output with the most frequent lines on top, you can do the following (to get all results):
sort FILE | uniq -c | sort -nr
or, to get only duplicate lines, most frequent first:
sort FILE | uniq -cd | sort -nr
on OSX and BSD the final one becomes:
sort FILE | uniq -c | grep -v '^ *1 ' | sort -nr
You can include the script file directly in your page/master page, etc using:
<script type="text/javascript" src="/scripts/jquery.min.js"></script>
Us use a Content Delivery network like Google or Microsoft:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
or:
<script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script>
Here's the raw reference of PDF 1.7, and here's an article describing the structure of a PDF file. If you use Vim, the pdftk plugin is a good way to explore the document in an ever-so-slightly less raw form, and the pdftk utility itself (and its GPL source) is a great way to tease documents apart.
This is easy to do, you can render the report as a PDF, and save the resulting byte array as a PDF file on disk. To do this in the background, that's more a question of how your app is written. You can just spin up a new thread, or use a BackgroundWorker (if this is a WinForms app), etc. There, of course, may be multithreading issues to be aware of.
Warning[] warnings;
string[] streamids;
string mimeType;
string encoding;
string filenameExtension;
byte[] bytes = reportViewer.LocalReport.Render(
"PDF", null, out mimeType, out encoding, out filenameExtension,
out streamids, out warnings);
using (FileStream fs = new FileStream("output.pdf", FileMode.Create))
{
fs.Write(bytes, 0, bytes.Length);
}
pip list [options] You can see the complete reference here
exec
is not an expression: a statement in Python 2.x, and a function in Python 3.x. It compiles and immediately evaluates a statement or set of statement contained in a string. Example:
exec('print(5)') # prints 5.
# exec 'print 5' if you use Python 2.x, nor the exec neither the print is a function there
exec('print(5)\nprint(6)') # prints 5{newline}6.
exec('if True: print(6)') # prints 6.
exec('5') # does nothing and returns nothing.
eval
is a built-in function (not a statement), which evaluates an expression and returns the value that expression produces. Example:
x = eval('5') # x <- 5
x = eval('%d + 6' % x) # x <- 11
x = eval('abs(%d)' % -100) # x <- 100
x = eval('x = 5') # INVALID; assignment is not an expression.
x = eval('if 1: x = 4') # INVALID; if is a statement, not an expression.
compile
is a lower level version of exec
and eval
. It does not execute or evaluate your statements or expressions, but returns a code object that can do it. The modes are as follows:
compile(string, '', 'eval')
returns the code object that would have been executed had you done eval(string)
. Note that you cannot use statements in this mode; only a (single) expression is valid.
compile(string, '', 'exec')
returns the code object that would have been executed had you done exec(string)
. You can use any number of statements here.
compile(string, '', 'single')
is like the exec
mode but expects exactly one expression/statement, eg compile('a=1 if 1 else 3', 'myf', mode='single')
In RxJS 5+ you can do it like this
import { Observable } from "rxjs/Observable";
import { of } from "rxjs/observable/of";
import { delay } from "rxjs/operators";
fakeObservable = of('dummy').pipe(delay(5000));
In RxJS 6+
import { of } from "rxjs";
import { delay } from "rxjs/operators";
fakeObservable = of('dummy').pipe(delay(5000));
If you want to delay each emitted value try
from([1, 2, 3]).pipe(concatMap(item => of(item).pipe(delay(1000))));
Here are some ways to get total records count while doing MongoDB Aggregation:
$count
:db.collection.aggregate([
// Other stages here
{ $count: "Total" }
])
For getting 1000 records this takes on average 2 ms and is the fastest way.
.toArray()
:db.collection.aggregate([...]).toArray().length
For getting 1000 records this takes on average 18 ms.
.itcount()
:db.collection.aggregate([...]).itcount()
For getting 1000 records this takes on average 14 ms.
Use std::string::size
or std::string::length
(both are the same).
As you insist to use strlen
, you can:
int size = strlen( str.c_str() );
note the usage of std::string::c_str
, which returns const char*
.
BUT strlen
counts untill it hit \0
char and std::string
can store such chars. In other words, strlen
could sometimes lie for the size.
Swift 4, simply use:
public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
return range.location < 10
}
When I use Junit4, import junit.framework.Assert; import junit.framework.TestCase; the warning info is :The type of Assert is deprecated
when import like this: import org.junit.Assert; import org.junit.Test; the warning has disappeared
possible duplicate of differences between 2 JUnit Assert classes
After hours of finding ways on how to get the data from the row selected on a WPF DataGrid Control, as I was using MongoDB. I found this post and used Tony's answer. I revised the code to be relevant to my project. Maybe someone can use this to get an idea.
private void selectionChanged(object sender, SelectionChangedEventArgs e)
{
facultyData row = (facultyData)facultyDataGrid.SelectedItem;
facultyID_Textbox.Text = row.facultyID;
lastName_TextBox.Text = row.lastName;
firstName_TextBox.Text = row.firstName;
middleName_TextBox.Text = row.middleName;
age_TextBox.Text = row.age.ToString();
}
}
class facultyData
{
public ObjectId _id { get; set; }
public string facultyID { get; set; }
public string acadYear { get; set; }
public string program { get; set; }
}
if (combo1.SelectedIndex > -1)
{
// do something
}
if any item is selected selected index will be greater than -1
UPDATE table1 SET col_a = 'newvalue'
Add a WHERE
condition if you want to only update some of the rows.
You could also try wrapping the two div's in two div's with unique ids. Then select the div by $("#div1","#wraper1")
and $("#div1","#wraper2")
Here you go:
<div id="wraper1">
<div id="div1">
</div>
<div id="wraper2">
<div id="div1">
</div>
The current (as of version 0.20) method for changing column names after a groupby operation is to chain the rename
method. See this deprecation note in the documentation for more detail.
This is the first result in google and although the top answer works it does not really answer the question. There is a better answer here and a long discussion on github about the full functionality of passing dictionaries to the agg
method.
These answers unfortunately do not exist in the documentation but the general format for grouping, aggregating and then renaming columns uses a dictionary of dictionaries. The keys to the outer dictionary are column names that are to be aggregated. The inner dictionaries have keys that the new column names with values as the aggregating function.
Before we get there, let's create a four column DataFrame.
df = pd.DataFrame({'A' : list('wwwwxxxx'),
'B':list('yyzzyyzz'),
'C':np.random.rand(8),
'D':np.random.rand(8)})
A B C D
0 w y 0.643784 0.828486
1 w y 0.308682 0.994078
2 w z 0.518000 0.725663
3 w z 0.486656 0.259547
4 x y 0.089913 0.238452
5 x y 0.688177 0.753107
6 x z 0.955035 0.462677
7 x z 0.892066 0.368850
Let's say we want to group by columns A, B
and aggregate column C
with mean
and median
and aggregate column D
with max
. The following code would do this.
df.groupby(['A', 'B']).agg({'C':['mean', 'median'], 'D':'max'})
D C
max mean median
A B
w y 0.994078 0.476233 0.476233
z 0.725663 0.502328 0.502328
x y 0.753107 0.389045 0.389045
z 0.462677 0.923551 0.923551
This returns a DataFrame with a hierarchical index. The original question asked about renaming the columns in the same step. This is possible using a dictionary of dictionaries:
df.groupby(['A', 'B']).agg({'C':{'C_mean': 'mean', 'C_median': 'median'},
'D':{'D_max': 'max'}})
D C
D_max C_mean C_median
A B
w y 0.994078 0.476233 0.476233
z 0.725663 0.502328 0.502328
x y 0.753107 0.389045 0.389045
z 0.462677 0.923551 0.923551
This renames the columns all in one go but still leaves the hierarchical index which the top level can be dropped with df.columns = df.columns.droplevel(0)
.
You should stop the task that you have scheduled on the timer: Your timer:
Timer t = new Timer();
TimerTask tt = new TimerTask() {
@Override
public void run() {
//do something
};
}
t.schedule(tt,1000,1000);
In order to stop:
tt.cancel();
t.cancel(); //In order to gracefully terminate the timer thread
Notice that just cancelling the timer will not terminate ongoing timertasks.
with object filter result
[{id:1},{id:2},{id:3},{id:4}].filter(v=>!([{id:2},{id:4}].some(e=>e.id === v.id)))
I have Tried something like this and its works fine;
this is the html part :
<table class="dd" width="100%" id="data">
<tr>
<td>Year</td>
<td>:</td>
<td><select name="year1" id="year1" >
<option value="2012">2012</option>
<option value="2011">2011</option>
</select></td>
<td>Month</td>
<td>:</td>
<td width="17%"><select name="month1" id="month1">
<option value="1">January</option>
<option value="2">February</option>
<option value="3">March</option>
<option value="4">April</option>
<option value="5">May</option>
<option value="6">June</option>
<option value="7">July</option>
<option value="8">August</option>
<option value="9">September</option>
<option value="10">October</option>
<option value="11">November</option>
<option value="12">December</option>
</select></td>
<td width="7%">Week</td>
<td width="3%">:</td>
<td width="17%"><select name="week1" id="week1" >
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select></td>
<td width="8%"> </td>
<td colspan="2"> </td>
</tr>
<tr>
<td>Actual</td>
<td>:</td>
<td width="17%"><input name="actual1" id="actual1" type="text" /></td>
<td width="7%">Max</td>
<td width="3%">:</td>
<td><input name="max1" id="max1" type="text" /></td>
<td>Target</td>
<td>:</td>
<td><input name="target1" id="target1" type="text" /></td>
</tr>
this is Javascript part;
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type='text/javascript'>
//<![CDATA[
$(document).ready(function() {
var currentItem = 1;
$('#addnew').click(function(){
currentItem++;
$('#items').val(currentItem);
var strToAdd = '<tr><td>Year</td><td>:</td><td><select name="year'+currentItem+'" id="year'+currentItem+'" ><option value="2012">2012</option><option value="2011">2011</option></select></td><td>Month</td><td>:</td><td width="17%"><select name="month'+currentItem+'" id="month'+currentItem+'"><option value="1">January</option><option value="2">February</option><option value="3">March</option><option value="4">April</option><option value="5">May</option><option value="6">June</option><option value="7">July</option><option value="8">August</option><option value="9">September</option><option value="10">October</option><option value="11">November</option><option value="12">December</option></select></td><td width="7%">Week</td><td width="3%">:</td><td width="17%"><select name="week'+currentItem+'" id="week'+currentItem+'" ><option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option></select></td><td width="8%"></td><td colspan="2"></td></tr><tr><td>Actual</td><td>:</td><td width="17%"><input name="actual'+currentItem+'" id="actual'+currentItem+'" type="text" /></td><td width="7%">Max</td> <td width="3%">:</td><td><input name="max'+currentItem+'" id ="max'+currentItem+'"type="text" /></td><td>Target</td><td>:</td><td><input name="target'+currentItem+'" id="target'+currentItem+'" type="text" /></td></tr>';
$('#data').append(strToAdd);
});
});
//]]>
</script>
Finaly PHP submit part:
for( $i = 1; $i <= $count; $i++ )
{
$year = $_POST['year'.$i];
$month = $_POST['month'.$i];
$week = $_POST['week'.$i];
$actual = $_POST['actual'.$i];
$max = $_POST['max'.$i];
$target = $_POST['target'.$i];
$extreme = $_POST['extreme'.$i];
$que = "insert INTO table_name(id,year,month,week,actual,max,target) VALUES ('".$_POST['type']."','".$year."','".$month."','".$week."','".$actual."','".$max."','".$target."')";
mysql_query($que);
}
you can find more details via Dynamic table row inserter
If in the folder with your project you created a file with the name "datetime.py"
I'm posting this since I have always been struggling when renaming a project in XCode
.
Renaming the project is good and simple but this doesn't rename the source folder. Here is a step by step of what I have done that worked great in Xcode 4 and 5 thanks to the links below.
REF links:
Rename Project.
Rename Source Folder and other files.
1- Backup your project.
If you are using git, commit any changes, make a copy of the entire project folder and backup in time machine before making any changes (this step is not required but I highly recommended).
2- Open your project.
3- Slow double click or hit enter on the Project name (blue top icon) and rename it to whatever you like.
NOTE: After you rename the project and press ‘enter’ it will suggest to automatically change all project-name-related entries and will allow you to de-select some of them if you want. Select all of them and click ok.
4- Rename the Scheme
a) Click the menu right next to the stop button and select Manage Schemes.
b) Single-slow-click or hit enter on the old name scheme and rename it to whatever you like.
c) Click ok.
5 - Build and run to make sure it works.
NOTES: At this point all of the important project files should be renamed except the comments in the classes created when the project was created nor the source folder. Next we will rename the folder in the file system.
6- Close the project.
7- Rename the main and the source folder.
8- Right click the project bundle .xcodeproj
file and select “Show Package Contents” from the context menu. Open the .pbxproj file with any text editor.
9- Search and replace any occurrence of the original folder name with the new folder name.
10- Save the file.
11- Open XCode project, test it.
12- Done.
There is a tool to rename projects in Xcode I haven't tried it enough to comment on it. https://github.com/appculture/xcode-project-renamer
IEnumerable
and IEnumerator
are both interfaces. IEnumerable
has just one method called GetEnumerator
. This method returns (as all methods return something including void) another type which is an interface and that interface is IEnumerator
. When you implement enumerator logic in any of your collection class, you implement IEnumerable
(either generic or non generic). IEnumerable
has just one method whereas IEnumerator
has 2 methods (MoveNext
and Reset
) and a property Current
. For easy understanding consider IEnumerable
as a box that contains IEnumerator
inside it (though not through inheritance or containment). See the code for better understanding:
class Test : IEnumerable, IEnumerator
{
IEnumerator IEnumerable.GetEnumerator()
{
throw new NotImplementedException();
}
public object Current
{
get { throw new NotImplementedException(); }
}
public bool MoveNext()
{
throw new NotImplementedException();
}
public void Reset()
{
throw new NotImplementedException();
}
}
@Logan said it perfectly. but i would like to add an alternative here,
if you want to view logs from just your application then you can make a custom method that keeps saving the log to a file in
documents
directory & then you can view that log file from your application.
There is one good advantage for developers of the app after the app has been released & users are downloading it. Because your app will be able to send logs & crash reports to the developers (of course with the permissions of the device user !!!) & it'll be the way to improve your application.
Let me know (To other SO users), if there is another way of doing the same thing. (Like default Apple feature or something)
Let me know if it helps or you want some more idea.
1.7 Approach:
void appendToFile(String filePath, String content) throws IOException{
Path path = Paths.get(filePath);
try (BufferedWriter writer =
Files.newBufferedWriter(path,
StandardOpenOption.APPEND)) {
writer.newLine();
writer.append(content);
}
/*
//Alternative:
try (BufferedWriter bWriter =
Files.newBufferedWriter(path,
StandardOpenOption.WRITE, StandardOpenOption.APPEND);
PrintWriter pWriter = new PrintWriter(bWriter)
) {
pWriter.println();//to have println() style instead of newLine();
pWriter.append(content);//Also, bWriter.append(content);
}*/
}
double click tomcat , see configure setting with "timeout" modify the number. Maybe this not the tomcat error.U can see the DB connection is achievable.
Most of the time, in enterprise applications the Java heap given is larger than the ideal size of max 12 to 16 GB. I have found it hard to make the NetBeans profiler work directly on these big java apps.
But usually this is not needed. You can use the jmap utility that comes with the jdk to take a "live" heap dump , that is jmap will dump the heap after running GC. Do some operation on the application, wait till the operation is completed, then take another "live" heap dump. Use tools like Eclipse MAT to load the heapdumps, sort on the histogram, see which objects have increased, or which are the highest, This would give a clue.
su proceeuser
/bin/jmap -dump:live,format=b,file=/tmp/2930javaheap.hrpof 2930(pid of process)
There is only one problem with this approach; Huge heap dumps, even with the live option, may be too big to transfer out to development lap, and may need a machine with enough memory/RAM to open.
That is where the class histogram comes into picture. You can dump a live class histogram with the jmap tool. This will give only the class histogram of memory usage.Basically it won't have the information to chain the reference. For example it may put char array at the top. And String class somewhere below. You have to draw the connection yourself.
jdk/jdk1.6.0_38/bin/jmap -histo:live 60030 > /tmp/60030istolive1330.txt
Instead of taking two heap dumps, take two class histograms, like as described above; Then compare the class histograms and see the classes that are increasing. See if you can relate the Java classes to your application classes. This will give a pretty good hint. Here is a pythons script that can help you compare two jmap histogram dumps. histogramparser.py
Finally tools like JConolse and VisualVm are essential to see the memory growth over time, and see if there is a memory leak. Finally sometimes your problem may not be a memory leak , but high memory usage.For this enable GC logging;use a more advanced and new compacting GC like G1GC; and you can use jdk tools like jstat to see the GC behaviour live
jstat -gccause pid <optional time interval>
Other referecences to google for -jhat, jmap, Full GC, Humongous allocation, G1GC
require 'rubygems'
require 'selenium-webdriver'
driver = Selenium::WebDriver.for :ie
driver.get "https://www.google.com"
driver.save_screenshot("./screen.png")
More file types and options are available and you can see them in file takes_screenshot.rb.
Update Nov. 2015: As per Hans Z. below - this is now indeed defined as part of RFC 7662.
Original Answer: The OAuth 2.0 spec (RFC 6749) doesn't clearly define the interaction between a Resource Server (RS) and Authorization Server (AS) for access token (AT) validation. It really depends on the AS's token format/strategy - some tokens are self-contained (like JSON Web Tokens) while others may be similar to a session cookie in that they just reference information held server side back at the AS.
There has been some discussion in the OAuth Working Group about creating a standard way for an RS to communicate with the AS for AT validation. My company (Ping Identity) has come up with one such approach for our commercial OAuth AS (PingFederate): https://support.pingidentity.com/s/document-item?bundleId=pingfederate-93&topicId=lzn1564003025072.html#lzn1564003025072__section_N10578_N1002A_N10001. It uses REST based interaction for this that is very complementary to OAuth 2.0.
What if you just wrap your code into function?
So this:
cd ~/documents
mkdir test
echo "useless script" > about.txt
Becomes this:
CommentedOutBlock() {
cd ~/documents
mkdir test
echo "useless script" > about.txt
}