The optional chaining operator provides a way to simplify accessing values through connected objects when it's possible that a reference or function may be undefined or null.
let customer = {
name: "Carl",
details: {
age: 82,
location: "Paradise Falls" // detailed address is unknown
}
};
let customerCity = customer.details?.address?.city;
The nullish coalescing operator may be used after optional chaining in order to build a default value when none was found:
let customer = {
name: "Carl",
details: { age: 82 }
};
const customerCity = customer?.city ?? "Unknown city";
console.log(customerCity); // Unknown city
Frank Heikens answer will only update database ownership. Often, you also want to update ownership of contained objects (including tables). Starting with Postgres 8.2, REASSIGN OWNED is available to simplify this task.
IMPORTANT EDIT!
Never use REASSIGN OWNED
when the original role is postgres
, this could damage your entire DB instance. The command will update all objects with a new owner, including system resources (postgres0, postgres1, etc.)
First, connect to admin database and update DB ownership:
psql
postgres=# REASSIGN OWNED BY old_name TO new_name;
This is a global equivalent of ALTER DATABASE
command provided in Frank's answer, but instead of updating a particular DB, it change ownership of all DBs owned by 'old_name'.
The next step is to update tables ownership for each database:
psql old_name_db
old_name_db=# REASSIGN OWNED BY old_name TO new_name;
This must be performed on each DB owned by 'old_name'. The command will update ownership of all tables in the DB.
You should be able to do this via the command line arguments, assuming these are Sun VMs installed using the usual Windows InstallShield mechanisms with the JVM finder EXE in system32.
Type java -help for the options. In particular, see:
-version:<value>
require the specified version to run
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
Simply, @Id: This annotation specifies the primary key of the entity.
@GeneratedValue: This annotation is used to specify the primary key generation strategy to use. i.e Instructs database to generate a value for this field automatically. If the strategy is not specified by default AUTO will be used.
GenerationType enum defines four strategies:
1. Generation Type . TABLE,
2. Generation Type. SEQUENCE,
3. Generation Type. IDENTITY
4. Generation Type. AUTO
GenerationType.SEQUENCE
With this strategy, underlying persistence provider must use a database sequence to get the next unique primary key for the entities.
GenerationType.TABLE
With this strategy, underlying persistence provider must use a database table to generate/keep the next unique primary key for the entities.
GenerationType.IDENTITY
This GenerationType indicates that the persistence provider must assign primary keys for the entity using a database identity column. IDENTITY column is typically used in SQL Server. This special type column is populated internally by the table itself without using a separate sequence. If underlying database doesn't support IDENTITY column or some similar variant then the persistence provider can choose an alternative appropriate strategy. In this examples we are using H2 database which doesn't support IDENTITY column.
GenerationType.AUTO
This GenerationType indicates that the persistence provider should automatically pick an appropriate strategy for the particular database. This is the default GenerationType, i.e. if we just use @GeneratedValue annotation then this value of GenerationType will be used.
Reference:- https://www.logicbig.com/tutorials/java-ee-tutorial/jpa/jpa-primary-key.html
If you are using Entity Framework like me, you should define Time out on Startup class as follows:
services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"), o => o.CommandTimeout(180)));
Environment.SetEnvironmentVariable("Variable name", value, EnvironmentVariableTarget.User);
You have to set to element_blank()
in theme()
elements you need to remove
ggplot(data = diamonds, mapping = aes(x = clarity)) + geom_bar(aes(fill = cut))+
theme(axis.title.x=element_blank(),
axis.text.x=element_blank(),
axis.ticks.x=element_blank())
Use copy instead of xcopy when copying files.
e.g. copy "bin\development\whee.config.example" "TestConnectionExternal\bin\Debug\whee.config"
You should find out last timestamp
values in each group (subquery), and then join this subquery to the table -
SELECT t1.* FROM messages t1
JOIN (SELECT from_id, MAX(timestamp) timestamp FROM messages GROUP BY from_id) t2
ON t1.from_id = t2.from_id AND t1.timestamp = t2.timestamp;
i have this error using datatables.net
i fixed changing the default ajax Get to POST in te properties of the DataTable()
"ajax": {
"url": "../ControllerName/MethodJson",
"type": "POST"
},
As an aside, I was in search to find the best way to implode an associative array but using my own seperators etc...
So I did this using PHP's array_walk() function to let me join an associative array into a list of parameters that could then be applied to a HTML tag....
// Create Params Array
$p = Array("id"=>"blar","class"=>"myclass","onclick"=>"myJavascriptFunc()");
// Join Params
array_walk($p, create_function('&$i,$k','$i=" $k=\"$i\"";'));
$p_string = implode($p,"");
// Now use $p_string for your html tag
Obviously, you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method. Hope that helps someone :)
setTimeout(() => { // your code here }, 0);
I wrapped my code in setTimeout and it worked
It should be Ctrl + J.
controller_path
holds the path of the controller used to serve the current view. (ie: admin/settings
).
and
controller_name
holds the name of the controller used to serve the current view. (ie: settings
).
I coded a function (used in Django project for DecimalField) but it can be used in Python project :
This code :
Code with tests :
def convert_decimal_to_right(value, max_digits, decimal_places, signed=True):
integer_digits = max_digits - decimal_places
max_value = float((10**integer_digits)-float(float(1)/float((10**decimal_places))))
if signed:
min_value = max_value*-1
else:
min_value = 0
if value > max_value:
value = max_value
if value < min_value:
value = min_value
return round(value, decimal_places)
value = 12.12345
nb = convert_decimal_to_right(value, 4, 2)
# nb : 12.12
value = 12.126
nb = convert_decimal_to_right(value, 4, 2)
# nb : 12.13
value = 1234.123
nb = convert_decimal_to_right(value, 4, 2)
# nb : 99.99
value = -1234.123
nb = convert_decimal_to_right(value, 4, 2)
# nb : -99.99
value = -1234.123
nb = convert_decimal_to_right(value, 4, 2, signed = False)
# nb : 0
value = 12.123
nb = convert_decimal_to_right(value, 8, 4)
# nb : 12.123
I came across a situation in which I had to send a long message as part of a command argument and had to adhere to the line length limitation. The commands looks something like this:
somecommand --message="I am a long message" args
The way I solved this is to move the message out as a here document (like @tripleee suggested). But a here document becomes a stdin, so it needs to be read back in, I went with the below approach:
message=$(
tr "\n" " " <<- END
This is a
long message
END
)
somecommand --message="$message" args
This has the advantage that $message
can be used exactly as the string constant with no extra whitespace or line breaks.
Note that the actual message lines above are prefixed with a tab
character each, which is stripped by here document itself (because of the use of <<-
). There are still line breaks at the end, which are then replaced by dd
with spaces.
Note also that if you don't remove newlines, they will appear as is when "$message"
is expanded. In some cases, you may be able to workaround by removing the double-quotes around $message
, but the message will no longer be a single argument.
You're passing link=$a
and link=$b
in the hrefs for A and B, respectively. They are treated as strings, not variables. The following should fix that for you:
echo '<a href="pass.php?link=' . $a . '">Link 1</a>';
// and
echo '<a href="pass.php?link=' . $b . '">Link 2</a>';
The value of $a
also isn't included on pass.php
. I would suggest making a common variable file and include it on all necessary pages.
Instead you can use before insert and get max pkid for the particular table and then update the maximium pkid table record.
This works for me
created a package called logger.go
package logger
import (
"flag"
"os"
"log"
"go/build"
)
var (
Log *log.Logger
)
func init() {
// set location of log file
var logpath = build.Default.GOPATH + "/src/chat/logger/info.log"
flag.Parse()
var file, err1 = os.Create(logpath)
if err1 != nil {
panic(err1)
}
Log = log.New(file, "", log.LstdFlags|log.Lshortfile)
Log.Println("LogFile : " + logpath)
}
import the package wherever you want to log e.g main.go
package main
import (
"logger"
)
const (
VERSION = "0.13"
)
func main() {
// time to use our logger, print version, processID and number of running process
logger.Log.Printf("Server v%s pid=%d started with processes: %d", VERSION, os.Getpid(),runtime.GOMAXPROCS(runtime.NumCPU()))
}
If you try joining C on a field from B before joining B, i.e.:
SELECT A.x,
A.y,
A.z
FROM A
INNER JOIN C
on B.x = C.x
INNER JOIN B
on A.x = B.x
your query will fail, so in this case the order matters.
The changelog is sloppily worded. from __future__ import absolute_import
does not care about whether something is part of the standard library, and import string
will not always give you the standard-library module with absolute imports on.
from __future__ import absolute_import
means that if you import string
, Python will always look for a top-level string
module, rather than current_package.string
. However, it does not affect the logic Python uses to decide what file is the string
module. When you do
python pkg/script.py
pkg/script.py
doesn't look like part of a package to Python. Following the normal procedures, the pkg
directory is added to the path, and all .py
files in the pkg
directory look like top-level modules. import string
finds pkg/string.py
not because it's doing a relative import, but because pkg/string.py
appears to be the top-level module string
. The fact that this isn't the standard-library string
module doesn't come up.
To run the file as part of the pkg
package, you could do
python -m pkg.script
In this case, the pkg
directory will not be added to the path. However, the current directory will be added to the path.
You can also add some boilerplate to pkg/script.py
to make Python treat it as part of the pkg
package even when run as a file:
if __name__ == '__main__' and __package__ is None:
__package__ = 'pkg'
However, this won't affect sys.path
. You'll need some additional handling to remove the pkg
directory from the path, and if pkg
's parent directory isn't on the path, you'll need to stick that on the path too.
Using JQuery you can do the following:
// for the element which uses ID
$("#id").trigger("change");
// for the element which uses class name
$(".class_name").trigger("change");
We have improved our answer with detail explanation.Now it's more easy to understand about extension method
Extension method: It is a mechanism through which we can extend the behavior of existing class without using the sub classing or modifying or recompiling the original class or struct.
We can extend our custom classes ,.net framework classes etc.
Extension method is actually a special kind of static method that is defined in the static class.
As DateTime
class is already taken above and hence we have not taken this class for the explanation.
Below is the example
//This is a existing Calculator class which have only one method(Add)
public class Calculator
{
public double Add(double num1, double num2)
{
return num1 + num2;
}
}
// Below is the extension class which have one extension method.
public static class Extension
{
// It is extension method and it's first parameter is a calculator class.It's behavior is going to extend.
public static double Division(this Calculator cal, double num1,double num2){
return num1 / num2;
}
}
// We have tested the extension method below.
class Program
{
static void Main(string[] args)
{
Calculator cal = new Calculator();
double add=cal.Add(10, 10);
// It is a extension method in Calculator class.
double add=cal.Division(100, 10)
}
}
This will import and display a .jpg
image in Jupyter (tested with Python 2.7 in Anaconda environment)
from IPython.display import display
from PIL import Image
path="/path/to/image.jpg"
display(Image.open(path))
in Anaconda this is done by typing
conda install pillow
FWIW, I was able to setup a local RTSP server for testing purposes using simple-rtsp-server and ffmpeg following these steps:
rtsp-simple-server.yml
with this single line:
protocols: [tcp]
$ docker run --rm -it -v $PWD/rtsp-simple-server.yml:/rtsp-simple-server.yml -p 8554:8554 aler9/rtsp-simple-server
$ ffmpeg -re -stream_loop -1 -i test.mp4 -f rtsp -rtsp_transport tcp rtsp://localhost:8554/live.stream
Once you have that running you can use ffplay to view the stream:
$ ffplay -rtsp_transport tcp rtsp://localhost:8554/live.stream
Note that simple-rtsp-server can also handle UDP streams (i.s.o. TCP) but that's tricky running the server as a Docker container.
For those still struggling with the error, make sure that you also import ReactiveFormsModule in your component 's module.ts file
meaning that you will import your ReactiveFormsModule in your app.module.ts and also in your mycomponent.module.ts file
rt.jar
contains all of the compiled class files for the base Java Runtime environment. You should not be messing with this jar file.
For MacOS it is called classes.jar
and located under /System/Library/Frameworks/<java_version>/Classes
. Same not messing with it rule applies there as well :).
http://javahowto.blogspot.com/2006/05/what-does-rtjar-stand-for-in.html
handle.exe http://technet.microsoft.com/en-us/sysinternals/bb896655.aspx
THis has helped me sooooo many times....
And if you are using Command line on Windows, download a program ANSICON that enables console to accept color codes. ANSICON is available at https://github.com/adoxa/ansicon/releases
Go to phpmyadmin and click on the database you have already created form the left side bar. Then you can see a privilege option at the top.. There you can add a new user..
If you are not having any database yet go to phpmyadmin and select databases and create a database by simply giving database name in the filed and press go.
You can event.preventDefault()
in the click handler for your submit button to ensure that the HTML form default submit
event doesn't fire (which is what leads to the page refreshing).
Another alternative would be to use hackier form markup: It's the use of <form>
and type="submit"
that is getting in the way of the desired behavior here; as these ultimately lead to click events refreshing the page.
If you want to still use <form>
, and you don't want to write custom click handlers, you can use jQuery's ajax
method, which abstracts the entire problem away for you by exposing promise methods for success
, error
, etc.
To recap, you can solve your problem by either:
• preventing default behavior in the handling function by using event.preventDefault()
• using elements that don't have default behavior (e.g. <form>
)
• using jQuery ajax
(i just noticed this question is from 2008, not sure why it showed up in my feed; at any rate, hopefully this is a clear answer)
Use the Make shell
builtin like in MY_VAR=$(shell echo whatever)
me@Zack:~$make
MY_VAR IS whatever
me@Zack:~$ cat Makefile
MY_VAR := $(shell echo whatever)
all:
@echo MY_VAR IS $(MY_VAR)
public ActionResult Paging(int? pageno,bool? fwd,bool? bwd)
{
if(pageno!=null)
{
Session["currentpage"] = pageno;
}
using (HatronEntities DB = new HatronEntities())
{
if(fwd!=null && (bool)fwd)
{
pageno = Convert.ToInt32(Session["currentpage"]) + 1;
Session["currentpage"] = pageno;
}
if (bwd != null && (bool)bwd)
{
pageno = Convert.ToInt32(Session["currentpage"]) - 1;
Session["currentpage"] = pageno;
}
if (pageno==null)
{
pageno = 1;
}
if(pageno<0)
{
pageno = 1;
}
int total = DB.EmployeePromotion(0, 0, 0).Count();
int totalPage = (int)Math.Ceiling((double)total / 20);
ViewBag.pages = totalPage;
if (pageno > totalPage)
{
pageno = totalPage;
}
return View (DB.EmployeePromotion(0,0,0).Skip(GetSkip((int)pageno,20)).Take(20).ToList());
}
}
private static int GetSkip(int pageIndex, int take)
{
return (pageIndex - 1) * take;
}
@model IEnumerable<EmployeePromotion_Result>
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Paging</title>
</head>
<body>
<div>
<table border="1">
@foreach (var itm in Model)
{
<tr>
<td>@itm.District</td>
<td>@itm.employee</td>
<td>@itm.PromotionTo</td>
</tr>
}
</table>
<a href="@Url.Action("Paging", "Home",new { pageno=1 })">First page</a>
<a href="@Url.Action("Paging", "Home", new { bwd =true })"><<</a>
@for(int itmp =1; itmp< Convert.ToInt32(ViewBag.pages)+1;itmp++)
{
<a href="@Url.Action("Paging", "Home",new { pageno=itmp })">@itmp.ToString()</a>
}
<a href="@Url.Action("Paging", "Home", new { fwd = true })">>></a>
<a href="@Url.Action("Paging", "Home", new { pageno = Convert.ToInt32(ViewBag.pages) })">Last page</a>
</div>
</body>
</html>
The following code snippet enables/disables a button depending on whether at least one checkbox on the page has been checked.
$('input[type=checkbox]').change(function () {
$('#test > tbody tr').each(function () {
if ($('input[type=checkbox]').is(':checked')) {
$('#btnexcellSelect').removeAttr('disabled');
} else {
$('#btnexcellSelect').attr('disabled', 'disabled');
}
if ($(this).is(':checked')){
console.log( $(this).attr('id'));
}else{
console.log($(this).attr('id'));
}
});
});
Here is demo in JSFiddle.
try this:
type: "GET",
async: false,
complete: function (XMLHttpRequest, textStatus) {
var headers = XMLHttpRequest.getAllResponseHeaders();
}
For Python 3 and above,To select first n Pairs
n=4
firstNpairs = {k: Diction[k] for k in list(Diction.keys())[:n]}
As far as I understand, the question is NOT about recursion. We can easily call main
method of another class in your class. Following example illustrates static and calling by object. Note omission of word static
in Class2
class Class1{
public static void main(String[] args) {
System.out.println("this is class 1");
}
}
class Class2{
public void main(String[] args) {
System.out.println("this is class 2");
}
}
class MyInvokerClass{
public static void main(String[] args) {
System.out.println("this is MyInvokerClass");
Class2 myClass2 = new Class2();
Class1.main(args);
myClass2.main(args);
}
}
Output Should be:
this is wrapper class
this is class 1
this is class 2
The error probably gives more information like this (although your jar names could be different)
SLF4J: Found binding in [jar:file:/D:/Java/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:/Java/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.8.2/log4j-slf4j-impl-2.8.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
Noticed that the conflict comes from two jars, named logback-classic-1.2.3
and log4j-slf4j-impl-2.8.2.jar
.
Run mvn dependency:tree
in this project pom.xml parent folder, giving:
Now choose the one you want to ignore (could consume a delicate endeavor I need more help on this)
I decided not to use the one imported from spring-boot-starter-data-jpa
(the top dependency) through spring-boot-starter
and through spring-boot-starter-logging
, pom becomes:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
in above pom spring-boot-starter-data-jpa
would use the spring-boot-starter
configured in the same file, which excludes logging
(it contains logback
)
I like using pipes because it makes the command easier to read.
This is my solution if you would like to remove all branches except master.
git branch | grep -v master | xargs -n 1 git branch -D
To delete other branches that match your criteria, modify the first and second block.
git branch --merged | grep feature_name | xargs -n 1 git branch -D
private string gettxtbettwen(string txt, string first, string last)
{
StringBuilder sb = new StringBuilder(txt);
int pos1 = txt.IndexOf(first) + first.Length;
int len = (txt.Length ) - pos1;
string reminder = txt.Substring(pos1, len);
int pos2 = reminder.IndexOf(last) - last.Length +1;
return reminder.Substring(0, pos2);
}
MacFreak's answer was extremely helpful to me. Here's some hands-on code in case it helps you.
PROBLEM - applying touchend means every time you scroll your finger over an element, it responds as if you've pressed it, even if you were just trying to scroll past.
I'm creating an effect with jQuery which fades up a line under some buttons to "highlight" the hovered button. I do not want this to mean you have to press the button twice on touch devices to follow the link.
Here are the buttons:
<a class="menu_button" href="#">
<div class="menu_underline"></div>
</a>
I want the "menu_underline" div to fade up on mouseover and fade out on mouseout. BUT I want touch devices to be able to follow the link on one single click, not two.
SOLUTION - Here's the jQuery to make it work:
//Mouse Enter
$('.menu_button').bind('touchstart mouseenter', function(){
$(this).find(".menu_underline").fadeIn();
});
//Mouse Out
$('.menu_button').bind('mouseleave touchmove click', function(){
$(this).find(".menu_underline").fadeOut();
});
Many thanks for your help on this MacFreak.
Pros:
Cons:
Pros:
Cons:
The data is sent back to the server for every HTTP request (HTML, images, JavaScript, CSS, etc) - increasing the amount of traffic between client and server.
Typically, the following are allowed:
Pros:
localStorage
.Cons:
localStorage
, it works on same-origin policy. So, data stored will only be available on the same origin.Checkout across-tabs - how to facilitate easy communication between cross-origin browser tabs.
I was reading this thread and would like to add information even though it is surely no longer timely for the OP.
BiggerDon above points out the difficulty of rote replacing "North" with "N". A similar problem exists with "Avenue" to "Ave" (e.g. "Avenue of the Americas" becomes "Ave of the Americas": still understandable, but probably not what the OP wants.
The replace() function is entirely context-free, but addresses are not. A complete solution needs to have additional logic to interpret the context correctly, and then apply replace() as needed.
Databases commonly contain addresses, and so I wanted to point out that the generalized version of the OP's problem as applied to addresses within the United States has been addressed (humor!) by the Coding Accuracy Support System (CASS). CASS is a database tool that accepts a U.S. address and completes or corrects it to meet a standard set by the U.S. Postal Service. The Wikipedia entry https://en.wikipedia.org/wiki/Postal_address_verification has the basics, and more information is available at the Post Office: https://ribbs.usps.gov/index.cfm?page=address_info_systems
You may also use --keyid-format
switch to show short or long key ID:
$ gpg2 -n --with-fingerprint --keyid-format=short --show-keys <filename>
which outputs like this (example from PostgreSQL CentOS repo key):
pub dsa1024/442DF0F8 2008-01-08 [SCA] ¦
Key fingerprint = 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8 ¦ honor-keyserver-url
uid PostgreSQL RPM Building Project <[email protected]> ¦ When using --refresh-keys, if the key in question has a preferred keyserver URL, then use that
sub elg2048/D43F1AF8 2008-01-08 [E]
ES2017 approach
Object.entries(obj).map(([key, val]) => `${key}=${val}`).join('&')
Note: .ix
has been deprecated since Pandas v0.20. You should instead use .loc
or .iloc
, as appropriate.
The DataFrame.ix index is what you want to be accessing. It's a little confusing (I agree that Pandas indexing is perplexing at times!), but the following seems to do what you want:
>>> df = DataFrame(np.random.rand(4,5), columns = list('abcde'))
>>> df.ix[:,'b':]
b c d e
0 0.418762 0.042369 0.869203 0.972314
1 0.991058 0.510228 0.594784 0.534366
2 0.407472 0.259811 0.396664 0.894202
3 0.726168 0.139531 0.324932 0.906575
where .ix[row slice, column slice] is what is being interpreted. More on Pandas indexing here: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-advanced
here is a portion of a procedure I use on my system to find text....
DECLARE @Search varchar(255)
SET @Search='[10.10.100.50]'
SELECT DISTINCT
o.name AS Object_Name,o.type_desc
FROM sys.sql_modules m
INNER JOIN sys.objects o ON m.object_id=o.object_id
WHERE m.definition Like '%'+@Search+'%'
ORDER BY 2,1
here's a way:
$date = new Carbon();
$dtStart = $date->startOfMonth();
$dtEnd = $dtStart->copy()->endOfMonth();
$weekendsInMoth = [];
while ($dtStart->diffInDays($dtEnd)) {
if($dtStart->isWeekend()) {
$weekendsInMoth[] = $dtStart->copy();
}
$dtStart->addDay();
}
The result of $weekendsInMoth is array of weekend days!
Swapping the values from 1st position to till the end of the list, this code loops for ( n*n-1)/2 times. Each time it pushes the greater value to the greater index starting from Zero index.
list2 = [40,-5,10,2,0,-4,-10]
for l in range(len(list2)):
for k in range(l+1,len(list2)):
if list2[k] < list2[l]:
list2[k] , list2[l] = list2[l], list2[k]
print(list2)
It is called 'favicon' and you need to add below code to the header section of your website.
Simply add this to the <head>
section.
<link rel="icon" href="/your_path_to_image/favicon.jpg">
import datetime
'''
Created on 2011-03-09
@author: tonydiep
'''
def add_business_months(start_date, months_to_add):
"""
Add months in the way business people think of months.
Jan 31, 2011 + 1 month = Feb 28, 2011 to business people
Method: Add the number of months, roll back the date until it becomes a valid date
"""
# determine year
years_change = months_to_add / 12
# determine if there is carryover from adding months
if (start_date.month + (months_to_add % 12) > 12 ):
years_change = years_change + 1
new_year = start_date.year + years_change
# determine month
work = months_to_add % 12
if 0 == work:
new_month = start_date.month
else:
new_month = (start_date.month + (work % 12)) % 12
if 0 == new_month:
new_month = 12
# determine day of the month
new_day = start_date.day
if(new_day in [31, 30, 29, 28]):
#user means end of the month
new_day = 31
new_date = None
while (None == new_date and 27 < new_day):
try:
new_date = start_date.replace(year=new_year, month=new_month, day=new_day)
except:
new_day = new_day - 1 #wind down until we get to a valid date
return new_date
if __name__ == '__main__':
#tests
dates = [datetime.date(2011, 1, 31),
datetime.date(2011, 2, 28),
datetime.date(2011, 3, 28),
datetime.date(2011, 4, 28),
datetime.date(2011, 5, 28),
datetime.date(2011, 6, 28),
datetime.date(2011, 7, 28),
datetime.date(2011, 8, 28),
datetime.date(2011, 9, 28),
datetime.date(2011, 10, 28),
datetime.date(2011, 11, 28),
datetime.date(2011, 12, 28),
]
months = range(1, 24)
for start_date in dates:
for m in months:
end_date = add_business_months(start_date, m)
print("%s\t%s\t%s" %(start_date, end_date, m))
You can use following simple technique for print log with class name.
private String TAG = MainActivity.class.getSimpleName();
Suppose we have to check coming variable value in method then we can use log like bellow :
private void printVariable(){
Log.e(TAG, "printVariable: ");
}
Importance of this line is that, we can check method name along with class name. To write this type of log.
write :- loge and Enter.
will print on console
E/MainActivity: printVariable:
Can you change the if condition to this:
if (!is.na(comments[l])) print(comments[l]);
You can only check for NA values with is.na().
If you want to upload the file /Applications/XAMPP/htdocs/keypairfile.pem
to ec2-user@publicdns:/var/www/html
, you can simply do:
scp -Cr /Applications/XAMPP/htdocs/keypairfile.pem/uploads/ ec2-user@publicdns:/var/www/html/
Where:
-C
- Compress data-r
- RecursiveI found that the user control must have a parameterless constructor or it won't show up in the list. at least that was true in vs2005.
It's been a long time since I last worked with Python, but I think the problem is with the statement for line in proc.stdout
, which reads the entire input before iterating over it. The solution is to use readline()
instead:
#filters output
import subprocess
proc = subprocess.Popen(['python','fake_utility.py'],stdout=subprocess.PIPE)
while True:
line = proc.stdout.readline()
if not line:
break
#the real code does filtering here
print "test:", line.rstrip()
Of course you still have to deal with the subprocess' buffering.
Note: according to the documentation the solution with an iterator should be equivalent to using readline()
, except for the read-ahead buffer, but (or exactly because of this) the proposed change did produce different results for me (Python 2.5 on Windows XP).
If you are running the command from a POSIX-compliant shell, like bash
, you can set the environment variable like this:
PYTHONPATH="/path/to" python somescript.py somecommand
If it's all on one line, the PYTHONPATH environment value applies only to that one command.
$ echo $PYTHONPATH
$ python -c 'import sys;print("/tmp/pydir" in sys.path)'
False
$ PYTHONPATH=/tmp/pydir python -c 'import sys;print("/tmp/pydir" in sys.path)'
True
$ echo $PYTHONPATH
Try to add following line in root folder index.php after php starts:
ob_start();
This works for me.
This worked for me in TFS MSBuild Argument. Note the number of slashes.
/p:DefaultPackageOutputDir="\\Rdevnet\Visual Studio Projects\Insurance\"
If using the .NET 2.0 (or later) framework you can use the CopyFromScreen()
method detailed here:
http://www.geekpedia.com/tutorial181_Capturing-screenshots-using-Csharp.html
//Create a new bitmap.
var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
Screen.PrimaryScreen.Bounds.Height,
PixelFormat.Format32bppArgb);
// Create a graphics object from the bitmap.
var gfxScreenshot = Graphics.FromImage(bmpScreenshot);
// Take the screenshot from the upper left corner to the right bottom corner.
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
Screen.PrimaryScreen.Bounds.Y,
0,
0,
Screen.PrimaryScreen.Bounds.Size,
CopyPixelOperation.SourceCopy);
// Save the screenshot to the specified path that the user has chosen.
bmpScreenshot.Save("Screenshot.png", ImageFormat.Png);
I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.
That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.
If you have an array of a some kind of object (bean) you can do this:
List<aBean> gasList = createDuplicateGasBeans();
Set<aBean> uniqueGas = new HashSet<aBean>(gasList);
like said Mathias Schwarz above, but you have to provide your aBean with the methods hashCode()
and equals(Object obj)
that can be done easily in Eclipse by dedicated menu 'Generate hashCode() and equals()
' (while in the bean Class).
Set will evaluate the overridden methods to discriminate equals objects.
Ctrl-/ will insert //
style commenting, for javascript, etc
Ctrl-/ will insert <!-- -->
comments for HTML,
Ctrl-/ will insert #
comments for Ruby,
..etc
But does not work perfectly on HTML <script>
tags.
HTML <script> ..blah.. </script>
tags:
Ctrl-/ twice
(ie Ctrl-/Ctrl-/) will effectively comment out the line:
//
to the beginning of the line,//
" text to your webpage. <!-- -->
style comments, which accomplishes the task.Ctrl--Shift-/ does not produce multi-line comments on HTML (or even single line comments), but does
add /* */
style multi-line comments in Javascript, text, and other file formats.
--
[I added as a new answer since I could not add comments.
I included this info because this is the info I was looking for, and this is the only related StackOverflow page from my search results.
I since discovered the / / trick for HTML script tags and decided to share this additional information, since it requires a slight variation of the usual catch-all (and reported above)
/ and Ctrl--Shift-/ method of commenting out one's code in sublime.]
You can't put variable definitions in header files, as these will then be a part of all source file you include the header into.
The #pragma once
is just to protect against multiple inclusions in the same source file, not against multiple inclusions in multiple source files.
You could declare the variables as extern
in the header file, and then define them in a single source file. Or you could declare the variables as const
in the header file and then the compiler and linker will manage it.
function fn_DateCompare(DateA, DateB) { // this function is good for dates > 01/01/1970
var a = new Date(DateA);
var b = new Date(DateB);
var msDateA = Date.UTC(a.getFullYear(), a.getMonth()+1, a.getDate());
var msDateB = Date.UTC(b.getFullYear(), b.getMonth()+1, b.getDate());
if (parseFloat(msDateA) < parseFloat(msDateB))
return -1; // lt
else if (parseFloat(msDateA) == parseFloat(msDateB))
return 0; // eq
else if (parseFloat(msDateA) > parseFloat(msDateB))
return 1; // gt
else
return null; // error
}
-m1 is the last parent of the current branch that is being fixed, -m 2 is the original parent of the branch that got merged into this.
Tortoise Git can also help here if command line is confusing.
You can use aggregate to calculate the means:
means<-aggregate(df,by=list(df$gender),mean)
Group.1 tea coke beer water gender
1 1 87.70171 27.24834 24.27099 37.24007 1
2 2 24.73330 25.27344 25.64657 24.34669 2
Get rid of the Group.1 column
means<-means[,2:length(means)]
Then you have reformat the data to be in long format:
library(reshape2)
means.long<-melt(means,id.vars="gender")
gender variable value
1 1 tea 87.70171
2 2 tea 24.73330
3 1 coke 27.24834
4 2 coke 25.27344
5 1 beer 24.27099
6 2 beer 25.64657
7 1 water 37.24007
8 2 water 24.34669
Finally, you can use ggplot2 to create your plot:
library(ggplot2)
ggplot(means.long,aes(x=variable,y=value,fill=factor(gender)))+
geom_bar(stat="identity",position="dodge")+
scale_fill_discrete(name="Gender",
breaks=c(1, 2),
labels=c("Male", "Female"))+
xlab("Beverage")+ylab("Mean Percentage")
Found an easy workaround with the following code
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if ((getIntent().getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
// Activity is being brought to front and not being created again,
// Thus finishing this activity will bring the last viewed activity to foreground
finish();
}
}
As of SciPy version 0.17.0, there is a new option for scipy.interpolate.interp1d that allows extrapolation. Simply set fill_value='extrapolate' in the call. Modifying your code in this way gives:
import numpy as np
from scipy import interpolate
x = np.arange(0,10)
y = np.exp(-x/3.0)
f = interpolate.interp1d(x, y, fill_value='extrapolate')
print f(9)
print f(11)
and the output is:
0.0497870683679
0.010394302658
If you control the input data, you can use the mini version
package main
import (
"testing"
"strconv"
)
func Atoi (s string) int {
var (
n uint64
i int
v byte
)
for ; i < len(s); i++ {
d := s[i]
if '0' <= d && d <= '9' {
v = d - '0'
} else if 'a' <= d && d <= 'z' {
v = d - 'a' + 10
} else if 'A' <= d && d <= 'Z' {
v = d - 'A' + 10
} else {
n = 0; break
}
n *= uint64(10)
n += uint64(v)
}
return int(n)
}
func BenchmarkAtoi(b *testing.B) {
for i := 0; i < b.N; i++ {
in := Atoi("9999")
_ = in
}
}
func BenchmarkStrconvAtoi(b *testing.B) {
for i := 0; i < b.N; i++ {
in, _ := strconv.Atoi("9999")
_ = in
}
}
the fastest option (write your check if necessary). Result :
Path>go test -bench=. atoi_test.go
goos: windows
goarch: amd64
BenchmarkAtoi-2 100000000 14.6 ns/op
BenchmarkStrconvAtoi-2 30000000 51.2 ns/op
PASS
ok path 3.293s
The best way to access files from resource folder inside a jar is it to use the InputStream via getResourceAsStream
. If you still need a the resource as a file instance you can copy the resource as a stream into a temporary file (the temp file will be deleted when the JVM exits):
public static File getResourceAsFile(String resourcePath) {
try {
InputStream in = ClassLoader.getSystemClassLoader().getResourceAsStream(resourcePath);
if (in == null) {
return null;
}
File tempFile = File.createTempFile(String.valueOf(in.hashCode()), ".tmp");
tempFile.deleteOnExit();
try (FileOutputStream out = new FileOutputStream(tempFile)) {
//copy stream
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
}
}
return tempFile;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
you can make use of google-collections.jar which has a utility class called Joiner
String commaSepString=Joiner.on(",").join(lst);
or
you can use StringUtils class which has function called join.To make use of StringUtils class,you need to use common-lang3.jar
String commaSepString=StringUtils.join(lst, ',');
for reference, refer this link http://techno-terminal.blogspot.in/2015/08/convert-collection-into-comma-separated.html
Try this:
<div id="wrapper">
<div class="float left">left</div>
<div class="float right">right</div>
</div>
#wrapper {
width:500px;
height:300px;
position:relative;
}
.float {
background-color:black;
height:300px;
margin:0;
padding:0;
color:white;
}
.left {
background-color:blue;
position:fixed;
width:400px;
}
.right {
float:right;
width:100px;
}
jsFiddle: http://jsfiddle.net/khA4m
From Java 8 onwards we have CompletableFuture
.
On your case, you may use the method supplyAsync
to get the result after execution.
Please find some reference here.
CompletableFuture<Integer> completableFuture
= CompletableFuture.supplyAsync(() -> yourMethod());
completableFuture.get() //gives you the value
This will generate 4 MB text file with random characters in current directory and its name "4mb.txt" You can change parameters to generate different sizes and names.
base64 /dev/urandom | head -c 4000000 > 4mb.txt
Not trying to resurrect an inactive post, but since this hasn't been posted yet...
(This is how I did it before finding this question)
s = "hello"
target = "l"
last_pos = len(s) - 1 - s[::-1].index(target)
Explanation: When you're searching for the last occurrence, really you're searching for the first occurrence in the reversed string. Knowing this, I did s[::-1]
(which returns a reversed string), and then indexed the target
from there. Then I did len(s) - 1 - the index found
because we want the index in the unreversed (i.e. original) string.
Watch out, though! If target
is more than one character, you probably won't find it in the reversed string. To fix this, use last_pos = len(s) - 1 - s[::-1].index(target[::-1])
, which searches for a reversed version of target
.
Watch out for the trap I got into: When checking if certain value is not present in an array, you shouldn't do:
SELECT value_variable != ANY('{1,2,3}'::int[])
but use
SELECT value_variable != ALL('{1,2,3}'::int[])
instead.
Yes, use the rendered
attribute.
<h:form rendered="#{some boolean condition}">
You usually tie it to the model rather than letting the model grab the component and manipulate it.
E.g.
<h:form rendered="#{bean.booleanValue}" />
<h:form rendered="#{bean.intValue gt 10}" />
<h:form rendered="#{bean.objectValue eq null}" />
<h:form rendered="#{bean.stringValue ne 'someValue'}" />
<h:form rendered="#{not empty bean.collectionValue}" />
<h:form rendered="#{not bean.booleanValue and bean.intValue ne 0}" />
<h:form rendered="#{bean.enumValue eq 'ONE' or bean.enumValue eq 'TWO'}" />
Note the importance of keyword based EL operators such as gt
, ge
, le
and lt
instead of >
, >=
, <=
and <
as angle brackets <
and >
are reserved characters in XML. See also this related Q&A: Error parsing XHTML: The content of elements must consist of well-formed character data or markup.
As to your specific use case, let's assume that the link is passing a parameter like below:
<a href="page.xhtml?form=1">link</a>
You can then show the form as below:
<h:form rendered="#{param.form eq '1'}">
(the #{param}
is an implicit EL object referring to a Map
representing the request parameters)
In ASP.NET MVC 4, the namespace is not System.Web.WebPages.Razor, but System.Web.Razor
That worked for me, change your web.config.
xcopy.exe is definitely your friend here. It's built into Windows, so its cost is nothing.
Just xcopy /s c:\source d:\target
You'd probably want to tweak a few things; some of the options we also add include these:
/s/e
- recursive copy, including copying empty directories./v
- add this to verify the copy against the original. slower, but for the paranoid./h
- copy system and hidden files./k
- copy read-only attributes along with files. otherwise, all files become read-write./x
- if you care about permissions, you might want /o
or /x
./y
- don't prompt before overwriting existing files./z
- if you think the copy might fail and you want to restart it, use this. It places a marker on each file as it copies, so you can rerun the xcopy command to pick up from where it left off.If you think the xcopy might fail partway through (like when you are copying over a flaky network connection), or that you have to stop it and want to continue it later, you can use xcopy /s/z c:\source d:\target
.
Hope this helps.
The new C++11 style:
#include <algorithm>
#include <string>
#include <cctype>
/// Try to find in the Haystack the Needle - ignore case
bool findStringIC(const std::string & strHaystack, const std::string & strNeedle)
{
auto it = std::search(
strHaystack.begin(), strHaystack.end(),
strNeedle.begin(), strNeedle.end(),
[](char ch1, char ch2) { return std::toupper(ch1) == std::toupper(ch2); }
);
return (it != strHaystack.end() );
}
Explanation of the std::search can be found on cplusplus.com.
I solved the problem by adding dispatcher in UserControl_Loaded event
Dispatcher.BeginInvoke(DispatcherPriority.Loaded, new Action(() =>
{
combobox.SelectedIndex = 0;
}));
MDN: https://developer.mozilla.org/en/DOM/window.location
It seems that you will get the same result for both, but hostname
contains clear host name without brackets or port number.
From the documentation of the HttpWebRequest.Timeout property:
A Domain Name System (DNS) query may take up to 15 seconds to return or time out. If your request contains a host name that requires resolution and you set Timeout to a value less than 15 seconds, it may take 15 seconds or more before a WebException is thrown to indicate a timeout on your request.
Is it possible that your DNS query is the cause of the timeout?
add your editText
android:imeOptions="actionNext"
android:singleLine="true"
add property to activity in manifest
android:windowSoftInputMode="adjustResize|stateHidden"
in layout file ScrollView set as root or parent layout all ui
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.ukuya.marketplace.activity.SignInActivity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<!--your items-->
</ScrollView>
</LinearLayout>
if you do not want every time it adds, create style: add style in values/style.xml
default/style:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="editTextStyle">@style/AppTheme.CustomEditText</item>
</style>
<style name="AppTheme.CustomEditText" parent="android:style/Widget.EditText">
//...
<item name="android:imeOptions">actionNext</item>
<item name="android:singleLine">true</item>
</style>
There is no data types for that.. You need to store it as VARCHAR or TEXT only.. jsonObject.toString();
TimeUnit
EnumThe following expression uses the TimeUnit
enum (Java 5 and later) to convert from nanoseconds to seconds:
TimeUnit.SECONDS.convert(elapsedTime, TimeUnit.NANOSECONDS)
Update: Now supported in most major browsers
document.querySelector("p").closest(".near.ancestor")
Note that this can match selectors, not just classes
https://developer.mozilla.org/en-US/docs/Web/API/Element.closest
For legacy browsers that do not support closest()
but have matches()
one can build selector-matching similar to @rvighne's class matching:
function findAncestor (el, sel) {
while ((el = el.parentElement) && !((el.matches || el.matchesSelector).call(el,sel)));
return el;
}
Execute the following command
sudo setfacl -R -m u:<user_name>:rwx /var/www
It will change the permissions of html directory so that you can upload, download and delete the files or directories
:active
denotes the interaction state (so for a button will be applied during press), :focus
may be a better choice here. However, the styling will be lost once another element gains focus.
The final potential alternative using CSS would be to use :target
, assuming the items being clicked are setting routes (e.g. anchors) within the page- however this can be interrupted if you are using routing (e.g. Angular), however this doesnt seem the case here.
.active:active {_x000D_
color: red;_x000D_
}_x000D_
.focus:focus {_x000D_
color: red;_x000D_
}_x000D_
:target {_x000D_
color: red;_x000D_
}
_x000D_
<button class='active'>Active</button>_x000D_
<button class='focus'>Focus</button>_x000D_
<a href='#target1' id='target1' class='target'>Target 1</a>_x000D_
<a href='#target2' id='target2' class='target'>Target 2</a>_x000D_
<a href='#target3' id='target3' class='target'>Target 3</a>
_x000D_
As such, there is no way in CSS to absolutely toggle a styled state- if none of the above work for you, you will either need to combine with a change in your HTML (e.g. based on a checkbox) or programatically apply/remove a class using e.g. jQuery
$('button').on('click', function(){_x000D_
$('button').removeClass('selected');_x000D_
$(this).addClass('selected');_x000D_
});
_x000D_
button.selected{_x000D_
color:red;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<button>Item</button><button>Item</button><button>Item</button>_x000D_
_x000D_
SELECT E.CaseNum, E.FileNum, E.ActivityNum, E.Grade, V.Score
FROM Evaluation E
INNER JOIN Value V
ON E.CaseNum = V.CaseNum AND E.FileNum = V.FileNum AND E.ActivityNum = V.ActivityNum
Currently, Macports has many more packages (~18.6 K) than there are Homebrew formulae (~3.1K), owing to its maturity. Homebrew is slowly catching up though.
Macport packages tend to be maintained by a single person.
Macports can keep multiple versions of packages around, and you can enable or disable them to test things out. Sometimes this list can get corrupted and you have to manually edit it to get things back in order, although this is not too hard.
Both package managers will ask to be regularly updated. This can take some time.
Note: you can have both package managers on your system! It is not one or the other. Brew might complain but Macports won't.
Also, if you are dealing with python or ruby packages, use a virtual environment wherever possible.
try
$("#btnId").click(function(e){
e.preventDefault();
//show loading gif
$.ajax({
...
success:function(data){
//remove gif
},
error:function(){//remove gif}
});
});
EDIT: after reading the comments
in case you decide against ajax
$("#btnId").click(function(e){
e.preventDefault();
//show loading gif
$(this).closest('form').submit();
});
The css clear: left
in your adm class should stop the div floating with the elements above it.
I know this thread is a little old but it came in handy for a specific scenario I had and I thought it worth while to note that there is another reason why System.Threading.Timer
might be a good approach.
When you have to periodically execute a Job that might take a long time and you want to ensure that the entire waiting period is used between jobs or if you don't want the job to run again before the previous job has finished in the case where the job takes longer than the timer period.
You could use the following:
using System;
using System.ServiceProcess;
using System.Threading;
public partial class TimerExampleService : ServiceBase
{
private AutoResetEvent AutoEventInstance { get; set; }
private StatusChecker StatusCheckerInstance { get; set; }
private Timer StateTimer { get; set; }
public int TimerInterval { get; set; }
public CaseIndexingService()
{
InitializeComponent();
TimerInterval = 300000;
}
protected override void OnStart(string[] args)
{
AutoEventInstance = new AutoResetEvent(false);
StatusCheckerInstance = new StatusChecker();
// Create the delegate that invokes methods for the timer.
TimerCallback timerDelegate =
new TimerCallback(StatusCheckerInstance.CheckStatus);
// Create a timer that signals the delegate to invoke
// 1.CheckStatus immediately,
// 2.Wait until the job is finished,
// 3.then wait 5 minutes before executing again.
// 4.Repeat from point 2.
Console.WriteLine("{0} Creating timer.\n",
DateTime.Now.ToString("h:mm:ss.fff"));
//Start Immediately but don't run again.
StateTimer = new Timer(timerDelegate, AutoEventInstance, 0, Timeout.Infinite);
while (StateTimer != null)
{
//Wait until the job is done
AutoEventInstance.WaitOne();
//Wait for 5 minutes before starting the job again.
StateTimer.Change(TimerInterval, Timeout.Infinite);
}
//If the Job somehow takes longer than 5 minutes to complete then it wont matter because we will always wait another 5 minutes before running again.
}
protected override void OnStop()
{
StateTimer.Dispose();
}
}
class StatusChecker
{
public StatusChecker()
{
}
// This method is called by the timer delegate.
public void CheckStatus(Object stateInfo)
{
AutoResetEvent autoEvent = (AutoResetEvent)stateInfo;
Console.WriteLine("{0} Start Checking status.",
DateTime.Now.ToString("h:mm:ss.fff"));
//This job takes time to run. For example purposes, I put a delay in here.
int milliseconds = 5000;
Thread.Sleep(milliseconds);
//Job is now done running and the timer can now be reset to wait for the next interval
Console.WriteLine("{0} Done Checking status.",
DateTime.Now.ToString("h:mm:ss.fff"));
autoEvent.Set();
}
}
An easy way that works:
private void dataGrid_SelectedCellsChanged(object sender, SelectedCellsChangedEventArgs e)
{
foreach (var item in e.AddedCells)
{
var col = item.Column as DataGridColumn;
var fc = col.GetCellContent(item.Item);
if (fc is CheckBox)
{
Debug.WriteLine("Values" + (fc as CheckBox).IsChecked);
}
else if(fc is TextBlock)
{
Debug.WriteLine("Values" + (fc as TextBlock).Text);
}
//// Like this for all available types of cells
}
}
select * from Reference where reference_dt = DATEADD(mm, 1, reference_dt)
If your project budged allows you to have enough RAM memory on your environment - answer is Redis. Especially taking in account new Redis 3.2 with cluster functionality.
Not possible in IE, as the UI Zoom button in the status bar is not scriptable. YMMV for other browsers.
File file = new File("Path");
FileReader reader = new FileReader(file);
while((ch=reader.read())!=-1)
{
System.out.print((char)ch);
}
This worked for me
Updated Answer in 18 April, 2020
Click on this Left-Bottom Manage Icon. Click Extensions or Short Cut Ctrl+Shift+X
Then Search in Extension with this key sentence Open In Default Browser. You will find this Extension. It is better to me.
Now right click on the html
file and you will see Open in Default Browser or Short Cut Ctrl+1
to see the html
file in browser.
Without the typedef
word, in C++ the declaration would declare a variable FunctionFunc
of type pointer to function of no arguments, returning void
.
With the typedef
it instead defines FunctionFunc
as a name for that type.
The accepted answer is correct. However, I needed a little bit more clarity, so in case someone else does too:
Leaflet allows events to fire on virtually anything you do on its map, in this case a marker.
So you could create a marker as suggested by the question above:
L.marker([10.496093,-66.881935]).addTo(map).on('mouseover', onClick);
Then create the onClick function:
function onClick(e) {
alert(this.getLatLng());
}
Now anytime you mouseover that marker it will fire an alert of the current lat/long.
However, you could use 'click', 'dblclick', etc. instead of 'mouseover' and instead of alerting lat/long you can use the body of onClick to do anything else you want:
L.marker([10.496093,-66.881935]).addTo(map).on('click', function(e) {
console.log(e.latlng);
});
Here is the documentation: http://leafletjs.com/reference.html#events
I had a somewhat similar problem - on my first attempt to enter MySQL, as root
, it told me access denied. Turns out I forgot to use the sudo
...
So, if you fail on root
first attempt, try:
sudo mysql -u root -p
and then enter your password, this should work.
Change this:
<div class=fetch_results>
To this:
<div id="fetch_results">
Then the following should work:
$("#fetch_results input").each(function() {
this.value = "";
})?
Write the queue job information in long format to text file
qstat -f > queue.txt
Grep job names
grep 'Job_Name' queue.txt
Have you taken a look at ExpandoObject?
From MSDN:
The ExpandoObject class enables you to add and delete members of its instances at run time and also to set and get values of these members. This class supports dynamic binding, which enables you to use standard syntax like sampleObject.sampleMember instead of more complex syntax like sampleObject.GetAttribute("sampleMember").
Allowing you to do cool things like:
dynamic dynObject = new ExpandoObject();
dynObject.SomeDynamicProperty = "Hello!";
dynObject.SomeDynamicAction = (msg) =>
{
Console.WriteLine(msg);
};
dynObject.SomeDynamicAction(dynObject.SomeDynamicProperty);
Based on your actual code you may be more interested in:
public static dynamic GetDynamicObject(Dictionary<string, object> properties)
{
return new MyDynObject(properties);
}
public sealed class MyDynObject : DynamicObject
{
private readonly Dictionary<string, object> _properties;
public MyDynObject(Dictionary<string, object> properties)
{
_properties = properties;
}
public override IEnumerable<string> GetDynamicMemberNames()
{
return _properties.Keys;
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
if (_properties.ContainsKey(binder.Name))
{
result = _properties[binder.Name];
return true;
}
else
{
result = null;
return false;
}
}
public override bool TrySetMember(SetMemberBinder binder, object value)
{
if (_properties.ContainsKey(binder.Name))
{
_properties[binder.Name] = value;
return true;
}
else
{
return false;
}
}
}
That way you just need:
var dyn = GetDynamicObject(new Dictionary<string, object>()
{
{"prop1", 12},
});
Console.WriteLine(dyn.prop1);
dyn.prop1 = 150;
Deriving from DynamicObject allows you to come up with your own strategy for handling these dynamic member requests, beware there be monsters here: the compiler will not be able to verify a lot of your dynamic calls and you won't get intellisense, so just keep that in mind.
NestedScrollView
NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default.
https://developer.android.com/reference/android/support/v4/widget/NestedScrollView.html
ScrollView
Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. A ScrollView is a FrameLayout, meaning you should place one child in it containing the entire contents to scroll; this child may itself be a layout manager with a complex hierarchy of objects
https://developer.android.com/reference/android/widget/ScrollView.html
Your encoded text is [B@6499375d
. That is not Base64, something went wrong while encoding. That decoding code looks good.
Use this code to convert the byte[] to a String before adding it to the URL:
String encodedEmailString = new String(encodedEmail, "UTF-8");
// ...
String confirmLink = "Complete your registration by clicking on following"
+ "\n<a href='" + confirmationURL + encodedEmailString + "'>link</a>";
You can just tell Finder to open the .sh
file in Terminal:
This will have the exact same effect as renaming it to .command
except… you don't have to rename it :)
CSS for that td: white-space: nowrap;
should solve it.
NSDate* now
and NSDate *now
are the same thing: a pointer to an NSDate object.
You probably want to use descriptionWithCalendarFormat:timeZone:locale: rather than dateWithCalendarFormat: — the latter returns an NSCalendarDate, which the docs say is scheduled to be deprecated at some point.
I dont know what do you exactly mean but hope it help you.
by this directive you can access the DOM element inside controller
this is sample that help you to focus element inside controller
.directive('scopeElement', function () {
return {
restrict:"A", // E-Element A-Attribute C-Class M-Comments
replace: false,
link: function($scope, elem, attrs) {
$scope[attrs.scopeElement] = elem[0];
}
};
})
now, inside HTML
<input scope-element="txtMessage" >
then, inside controller :
.controller('messageController', ['$scope', function ($scope) {
$scope.txtMessage.focus();
}])
you must write it in SQL not it C/PHP style
IF( action = 2 AND state = 0, 1, 0 ) AS state
for use in query
IF ( action = 2 AND state = 0 ) THEN SET state = 1
for use in stored procedures or functions
Here's a simple example that can demonstrate the difference.
The main difference is that array will make a copy of the original data and using different object we can modify the data in the original array.
import numpy as np
a = np.arange(0.0, 10.2, 0.12)
int_cvr = np.asarray(a, dtype = np.int64)
The contents in array (a), remain untouched, and still, we can perform any operation on the data using another object without modifying the content in original array.
The following is the code which I used to display all activity in landscape mode:
<activity android:screenOrientation="landscape"
android:configChanges="orientation|keyboardHidden"
android:name="abcActivty"/>
In IIS Manager, I added a binding to the site specifying the IP address. Previously, all my bindings were host names.
You could also use the !important feature of css to make qualities you do not want to override in the original class. I am using this on my site to keep some of the essential characteristics of the original class while overriding others:
<div class="foo bar">
.foo {
color: blue;
width: 200px !important;
}
.bar {
color: red;
width: 400px;
}
This will generate a class "foo bar" element that is red and 200px. This is great if you are using the other two classes individually and just want a piece from each class.
You're correct, in that example the throws
is superfluous. It's possible that it was left there from some previous implementation - perhaps the exception was originally thrown instead of caught in the catch block.
The C++ string class is std::string
. To use it you need to include the <string>
header.
For the fundamentals of how to use std::string
, you'll want to consult a good introductory C++ book.
properties-maven-plugin plugin may help:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>properties-maven-plugin</artifactId>
<version>1.0.0</version>
<executions>
<execution>
<goals>
<goal>set-system-properties</goal>
</goals>
<configuration>
<properties>
<property>
<name>my.property.name</name>
<value>my.property.value</value>
</property>
</properties>
</configuration>
</execution>
</executions>
</plugin>
You need to calculate UILabel size when you put insets. It can have different number of lines because of text alignment, line break mode.
override func drawText(in rect: CGRect) {
let size = self.sizeThatFits(UIEdgeInsetsInsetRect(rect, insets).size);
super.drawText(in: CGRect.init(origin: CGPoint.init(x: insets.left, y: insets.top), size: size));
}
override var intrinsicContentSize: CGSize {
var size = super.intrinsicContentSize;
if text == nil || text?.count == 0 {
return size;
}
size = self.sizeThatFits(UIEdgeInsetsInsetRect(CGRect.init(origin: CGPoint.zero, size: size), insets).size);
size.width += self.insets.left + self.insets.right;
size.height += self.insets.top + self.insets.bottom;
return size;
}
This might help to match balanced parenthesis.
\s*\w+[(][^+]*[)]\s*
The colorbar has to have its own axes. However, you can create an axes that overlaps with the previous one. Then use the cax
kwarg to tell fig.colorbar
to use the new axes.
For example:
import numpy as np
import matplotlib.pyplot as plt
data = np.arange(100, 0, -1).reshape(10, 10)
fig, ax = plt.subplots()
cax = fig.add_axes([0.27, 0.8, 0.5, 0.05])
im = ax.imshow(data, cmap='gist_earth')
fig.colorbar(im, cax=cax, orientation='horizontal')
plt.show()
Use Css Selector for this, or learn more about Css Selector just go here
https://www.w3schools.com/cssref/css_selectors.asp
#main_text > .title {
/* Style goes here */
}
#main_text .title {
/* Style goes here */
}
Installing mysqlclient
using anaconda
is pretty simple and straight forward
.
conda install -c bioconda mysqlclient
and then, install pymysql
using pip.
pip install pymysql
happy learning..
My solution was to add the tag
[AllowAnonymous]
over my GET request for the Register page. It was originally missing from the code I was mantaining!
Here is example how to remove NULL characters using ex
(in-place):
ex -s +"%s/\%x00//g" -cwq nulls.txt
and for multiple files:
ex -s +'bufdo!%s/\%x00//g' -cxa *.txt
For recursivity, you may use globbing option **/*.txt
(if it is supported by your shell).
Useful for scripting since sed
and its -i
parameter is a non-standard BSD extension.
See also: How to check if the file is a binary file and read all the files which are not?
List<int> list = new List<int> { 5, 7, 3 };
list.Sort((x,y)=> y.CompareTo(x));
list.ForEach(action => { Console.Write(action + " "); });
Just one other thing to confirm as some people are copy/pasting example code from the Internet to get started. Make sure you have MySQL entered here:
... $dbh = new PDO ("mysql: ...
In some examples this shows
$dbh = new PDO ("dblib ...
What if you compile it using another machine? A fresh installed one would be lovely. I hope your machine is not jealous.
If you are using Fontawesome you can do this :
<input type="text" style="font-family:Arial, FontAwesome" placeholder="" />
Result
The complete list of unicode can be found in the The complete Font Awesome 4.6.3 icon reference
Some of more advanced Oracle database features such as session trace do not work properly in Oracle 11g XE 32-bit if installed on Windows 64-bit system. I needed session trace on Windows 7 64-bit.
Apart from that it works well for me in multiple production MS Windows 64-bit systems: Windows Server 2008 R2 and Windows Server 2003 R2.
See this article on alistapart.com. (Ed: The article has been updated since originally linked)
self
is being used to maintain a reference to the original this
even as the context is changing. It's a technique often used in event handlers (especially in closures).
Edit: Note that using self
is now discouraged as window.self
exists and has the potential to cause errors if you are not careful.
What you call the variable doesn't particularly matter. var that = this;
is fine, but there's nothing magic about the name.
Functions declared inside a context (e.g. callbacks, closures) will have access to the variables/function declared in the same scope or above.
For example, a simple event callback:
function MyConstructor(options) {_x000D_
let that = this;_x000D_
_x000D_
this.someprop = options.someprop || 'defaultprop';_x000D_
_x000D_
document.addEventListener('click', (event) => {_x000D_
alert(that.someprop);_x000D_
});_x000D_
}_x000D_
_x000D_
new MyConstructor({_x000D_
someprop: "Hello World"_x000D_
});
_x000D_
I use the following snippet to view all the rows in a table. Use a query to find all the rows. The returned objects are the class instances. They can be used to view/edit the values as required:
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import create_engine, Sequence
from sqlalchemy import String, Integer, Float, Boolean, Column
from sqlalchemy.orm import sessionmaker
Base = declarative_base()
class MyTable(Base):
__tablename__ = 'MyTable'
id = Column(Integer, Sequence('user_id_seq'), primary_key=True)
some_col = Column(String(500))
def __init__(self, some_col):
self.some_col = some_col
engine = create_engine('sqlite:///sqllight.db', echo=True)
Session = sessionmaker(bind=engine)
session = Session()
for class_instance in session.query(MyTable).all():
print(vars(class_instance))
session.close()
using is used when you have a resource that you want disposed after it's been used.
For instance if you allocate a File resource and only need to use it in one section of code for a little reading or writing, using is helpful for disposing of the File resource as soon as your done.
The resource being used needs to implement IDisposable to work properly.
Example:
using (File file = new File (parameters))
{
*code to do stuff with the file*
}
Try to resolve the conflict using
svn resolve --accept=working PATH
I resolved this by clearing App Data.
Cypress documentation admits that App Data can get corrupted:
Cypress maintains some local application data in order to save user preferences and more quickly start up. Sometimes this data can become corrupted. You may fix an issue you have by clearing this app data.
cypress open
File
-> View App Data
cy
whose content should look something
like this: production
all.log
browsers
bundles
cache
projects
proxy
state.json
cy
folderSource: https://docs.cypress.io/guides/references/troubleshooting.html#To-clear-App-Data
I am sure my code will be easier and works faster.
$logon_sessions = get-process -includeusername | Select-Object -Unique -Property UserName, si | ? { $_ -match "server" -and $_ -notmatch "admin" }
foreach ($id in $logon_sessions.si) {
logoff $id
}
Html
$('#save').click(function(event) {
var jenis = $('#jenis').val();
var model = $('#model').val();
var harga = $('#harga').val();
var json = { "jenis" : jenis, "model" : model, "harga": harga};
$.ajax({
url: 'phone/save',
data: JSON.stringify(json),
type: "POST",
beforeSend: function(xhr) {
xhr.setRequestHeader("Accept", "application/json");
xhr.setRequestHeader("Content-Type", "application/json");
},
success: function(data){
alert(data);
}
});
event.preventDefault();
});
Controller
@Controller
@RequestMapping(value="/phone")
public class phoneController {
phoneDao pd=new phoneDao();
@RequestMapping(value="/save",method=RequestMethod.POST)
public @ResponseBody
int save(@RequestBody Smartphones phone)
{
return pd.save(phone);
}
Dao
public Integer save(Smartphones i) {
int id = 0;
Session session=HibernateUtil.getSessionFactory().openSession();
Transaction trans=session.beginTransaction();
try {
session.save(i);
id=i.getId();
trans.commit();
}
catch(HibernateException he){}
return id;
}
It looks like you have everything correct according to Laravel docs, but you have a typo
$item->push($product);
Should be
$items->push($product);
I also want to think the actual method you're looking for is put
$items->put('products', $product);
the problem is blade, try this
<i class="fa" v-bind:class="['{{content['cravings']}}' ? 'fa-checkbox-marked' : 'fa-checkbox-blank-outline']"></i>
byte[] byteArray = new byte[102400];
base64String = Base64.encode(byteArray);
That code will encode 102400 bytes, no matter how much data you actually use in the array.
while ((bytesRead = fis.read(byteArray)) != -1)
You need to use the value of bytesRead somewhere.
Also, this may not read the whole file into the array in one go (it only reads as much as is in the I/O buffer), so your loop will probably not work, you may end up with half an image in your array.
I'd use Apache Commons IOUtils here:
Base64.encode(FileUtils.readFileToByteArray(file));
You are just missing something in your method:
public void PrinterSetup(string printer)
{
if (printer == "jupiter")
{
Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC"");
}
}
Just add string
and you'll be fine.
There are just two minor things here.
The first is in the following carousel indicator list items:
<li data-target="carousel" data-slide-to="0"></li>
You need to pass the data-target
attribute a selector which means the ID must be prefixed with #
. So change them to the following:
<li data-target="#carousel" data-slide-to="0"></li>
Secondly, you need to give the carousel a starting point so both the carousel indicator items and the carousel inner items must have one active
class. Like this:
<ol class="carousel-indicators">
<li data-target="#carousel" data-slide-to="0" class="active"></li>
<!-- Other Items -->
</ol>
<div class="carousel-inner">
<div class="item active">
<img src="https://picsum.photos/1500/600?image=1" alt="Slide 1" />
</div>
<!-- Other Items -->
</div>
In Angular 1.3 I would do this:
HTML:
<input ng-model="msg" ng-model-options="{debounce: 1000}">
Controller:
$scope.$watch('variableName', function(nVal, oVal) {
if (nVal !== oVal) {
myDebouncedFunction();
}
});
Basically you're telling angular to run myDebouncedFunction()
, when the the msg
scope variable changes. The attribute ng-model-options="{debounce: 1000}"
makes sure that msg
can only update once a second.
JSON_UNESCAPED_UNICODE
was added in PHP 5.4 so it looks like you need upgrade your version of PHP to take advantage of it. 5.4 is not released yet though! :(
There is a 5.4 alpha release candidate on QA though if you want to play on your development machine.
I ended up using:
Function DirectoryExists(Directory As String) As Boolean
DirectoryExists = False
If Len(Dir(Directory, vbDirectory)) > 0 Then
If (GetAttr(Directory) And vbDirectory) = vbDirectory Then
DirectoryExists = True
End If
End If
End Function
which is a mix of @Brian and @ZygD answers. Where I think @Brian's answer is not enough and don't like the On Error Resume Next
used in @ZygD's answer
Add a contextmenu to your form and then assign it in the control's properties under ContextMenuStrip. Hope this helps :).
Hope this helps:
ContextMenu cm = new ContextMenu();
cm.MenuItems.Add("Item 1");
cm.MenuItems.Add("Item 2");
pictureBox1.ContextMenu = cm;
Here is a solution that is:
object
type)undefined
First we define the comparison result interface:
export interface ObjectComparison {
added: {};
updated: {
[propName: string]: Change;
};
removed: {};
unchanged: {};
}
with the special case of change where we want to know what are old and new values:
export interface Change {
oldValue: any;
newValue: any;
}
Then we can provide the diff
function which is merely two loops (with recursivity if deep
is true
):
export class ObjectUtils {
static diff(o1: {}, o2: {}, deep = false): ObjectComparison {
const added = {};
const updated = {};
const removed = {};
const unchanged = {};
for (const prop in o1) {
if (o1.hasOwnProperty(prop)) {
const o2PropValue = o2[prop];
const o1PropValue = o1[prop];
if (o2.hasOwnProperty(prop)) {
if (o2PropValue === o1PropValue) {
unchanged[prop] = o1PropValue;
} else {
updated[prop] = deep && this.isObject(o1PropValue) && this.isObject(o2PropValue) ? this.diff(o1PropValue, o2PropValue, deep) : {newValue: o2PropValue};
}
} else {
removed[prop] = o1PropValue;
}
}
}
for (const prop in o2) {
if (o2.hasOwnProperty(prop)) {
const o1PropValue = o1[prop];
const o2PropValue = o2[prop];
if (o1.hasOwnProperty(prop)) {
if (o1PropValue !== o2PropValue) {
if (!deep || !this.isObject(o1PropValue)) {
updated[prop].oldValue = o1PropValue;
}
}
} else {
added[prop] = o2PropValue;
}
}
}
return { added, updated, removed, unchanged };
}
/**
* @return if obj is an Object, including an Array.
*/
static isObject(obj: any) {
return obj !== null && typeof obj === 'object';
}
}
As an example, calling:
ObjectUtils.diff(
{
a: 'a',
b: 'b',
c: 'c',
arr: ['A', 'B'],
obj: {p1: 'p1', p2: 'p2'}
},
{
b: 'x',
c: 'c',
arr: ['B', 'C'],
obj: {p2: 'p2', p3: 'p3'},
d: 'd'
},
);
will return:
{
added: {d: 'd'},
updated: {
b: {oldValue: 'b', newValue: 'x'},
arr: {oldValue: ['A', 'B'], newValue: ['B', 'C']},
obj: {oldValue: {p1: 'p1', p2: 'p2'}, newValue: {p2: 'p2', p3: 'p3'}}
},
removed: {a: 'a'},
unchanged: {c: 'c'},
}
and calling the same with the deep
third parameter will return:
{
added: {d: 'd'},
updated: {
b: {oldValue: 'b', newValue: 'x'},
arr: {
added: {},
removed: {},
unchanged: {},
updated: {
0: {oldValue: 'A', newValue: 'B'},
1: {oldValue: 'B', newValue: 'C', }
}
},
obj: {
added: {p3: 'p3'},
removed: {p1: 'p1'},
unchanged: {p2: 'p2'},
updated: {}
}
},
removed: {a: 'a'},
unchanged: {c: 'c'},
}
This solution is by far the best working one. In your manifest file add
<activity
android:configChanges="keyboardHidden|orientation|screenSize"
android:name="your activity name"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity
And in your activity class add the following code
@Override
public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
//your code
} else if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
//your code
}
}
Right. So I've finally got to the bottom of the problem: it was a botched in-place OTA upgrade.
My suspicions intensified after my Garmin Fenix 2 wasn't able to connect via bluetooth and after googling "Marshmallow upgrade issues". Anyway, a "Factory reset" fixed the issue.
Surprisingly, the reset did not return the phone to the original Kitkat; instead, the wipe process picked up the OTA downloaded 6.0 upgrade package and ran with it, resulting (I guess) in a "cleaner" upgrade.
Of course, this meant that the phone lost all the apps that I'd installed. But, freshly installed apps, including mine, work without any changes (i.e. there is backward compatibility). Whew!
I was looking for the same thing but I don't want to install any nuget or servicepack, so I found this solution, it is pretty simple and straight forward, using this discussion, I thought it would be so easy to run that WMIC command and get that value, here is the C# code. You only need to use System.Management namespace (and couple more standard namespaces for process and so on).
string fileName = Path.Combine(Environment.SystemDirectory, "wbem", "wmic.exe");
string arguments = @"cpu get NumberOfCores";
Process process = new Process
{
StartInfo =
{
FileName = fileName,
Arguments = arguments,
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = true
}
};
process.Start();
StreamReader output = process.StandardOutput;
Console.WriteLine(output.ReadToEnd());
process.WaitForExit();
int exitCode = process.ExitCode;
process.Close();
list1 = [[], [], [], [], [], 'text', 'text2', [], 'moreText']
list2 = []
for item in list1:
if item!=[]:
list2.append(item)
print(list2)
output:
['text', 'text2', 'moreText']
You could use the way to solve the problem!
initialize:function(){
this.trigger('remove-compnents-cart');
var _this = this;
Backbone.View.prototype.on('remove-compnents-cart',function(){
//Backbone.View.prototype.remove;
Backbone.View.prototype.off();
_this.undelegateEvents();
})
}
Another way:Create a global variable,like this:_global.routerList
initialize:function(){
this.routerName = 'home';
_global.routerList.push(this);
}
/*remove it in memory*/
for (var i=0;i<_global.routerList.length;i++){
Backbone.View.prototype.remove.call(_global.routerList[i]);
}
os.path.isfile("bob.txt") # Does bob.txt exist? Is it a file, or a directory?
os.path.isdir("bob")
Look. This is way old, but on the off chance that someone from Google finds this, absolutely the best solution to this - (and it is AWESOME) - is to use ConEmu (or a package that includes and is built on top of ConEmu called cmder) and then either use plink or putty itself to connect to a specific machine, or, even better, set up a development environment as a local VM using Vagrant.
This is the only way I can ever see myself developing from a Windows box again.
I am confident enough to say that every other answer - while not necessarily bad answers - offer garbage solutions compared to this.
Update: As Of 1/8/2020 not all other solutions are garbage - Windows Terminal is getting there and WSL exists.
I wrote a Higher-Order Component called withScrollToTop
. This HOC takes in two flags:
onComponentWillMount
- Whether to scroll to top upon navigation (componentWillMount
)onComponentDidUpdate
- Whether to scroll to top upon update (componentDidUpdate
). This flag is necessary in cases where the component is not unmounted but a navigation event occurs, for example, from /users/1
to /users/2
.// @flow
import type { Location } from 'react-router-dom';
import type { ComponentType } from 'react';
import React, { Component } from 'react';
import { withRouter } from 'react-router-dom';
type Props = {
location: Location,
};
type Options = {
onComponentWillMount?: boolean,
onComponentDidUpdate?: boolean,
};
const defaultOptions: Options = {
onComponentWillMount: true,
onComponentDidUpdate: true,
};
function scrollToTop() {
window.scrollTo(0, 0);
}
const withScrollToTop = (WrappedComponent: ComponentType, options: Options = defaultOptions) => {
return class withScrollToTopComponent extends Component<Props> {
props: Props;
componentWillMount() {
if (options.onComponentWillMount) {
scrollToTop();
}
}
componentDidUpdate(prevProps: Props) {
if (options.onComponentDidUpdate &&
this.props.location.pathname !== prevProps.location.pathname) {
scrollToTop();
}
}
render() {
return <WrappedComponent {...this.props} />;
}
};
};
export default (WrappedComponent: ComponentType, options?: Options) => {
return withRouter(withScrollToTop(WrappedComponent, options));
};
To use it:
import withScrollToTop from './withScrollToTop';
function MyComponent() { ... }
export default withScrollToTop(MyComponent);
Just to generalize Rob's answer a little, if you're not doing it on output, you can still use the same interface with sprintf()
.
I think there is another way to do it, though. You can try ceil()
and floor()
to round up and down. A nice trick is to add 0.5, so anything over 0.5 rounds up but anything under it rounds down. ceil()
and floor()
only work on double
s though.
EDIT: Also, for floats, you can use truncf()
to truncate floats. The same +0.5 trick should work to do accurate rounding.
This code makes a window with the conditions that the user cannot change the dimensions of the Tk()
window, and also disables the maximise button.
import tkinter as tk
root = tk.Tk()
root.resizable(width=False, height=False)
root.mainloop()
Within the program you can change the window dimensions with @Carpetsmoker's answer, or by doing this:
root.geometry('{}x{}'.format(<widthpixels>, <heightpixels>))
It should be fairly easy for you to implement that into your code. :)
Had issues using the code in the answer provided by @haynar above (wouldn't play on Chrome), and it seems that one of the more modern ways to ensure it plays is to use the video tag
Example:
<video controls="controls" width="800" height="600"
name="Video Name" src="http://www.myserver.com/myvideo.mov"></video>
This worked like a champ for my .mov file (generated from Keynote) in both Safari and Chrome, and is listed as supported in most modern browsers (The video tag is supported in Internet Explorer 9+, Firefox, Opera, Chrome, and Safari.)
Note: Will work in IE / etc.. if you use MP4 (Mov is not officially supported by those guys)
I am using the following script to
.
#!/bin/bash -xe
SRC_ENCODING="iso-8859-1"
DST_ENCODING="utf-8"
FILTER="*.java"
echo "Find all files that match the encoding $SRC_ENCODING and filter $FILTER"
FOUND_FILES=$(find . -iname "$FILTER" -exec file -i {} \; | grep "$SRC_ENCODING" | grep -Eo '^.*\.java')
for FILE in $FOUND_FILES ; do
ORIGINAL_FILE="$FILE.$SRC_ENCODING.bkp"
echo "Backup original file to $ORIGINAL_FILE"
mv "$FILE" "$ORIGINAL_FILE"
echo "converting $FILE from $SRC_ENCODING to $DST_ENCODING"
iconv -f "$SRC_ENCODING" -t "$DST_ENCODING" "$ORIGINAL_FILE" -o "$FILE"
done
echo "Deleting backups"
find . -iname "*.$SRC_ENCODING.bkp" -exec rm {} \;
Use:
+ scale_y_continuous(labels = scales::percent)
Or, to specify formatting parameters for the percent:
+ scale_y_continuous(labels = scales::percent_format(accuracy = 1))
(the command labels = percent
is obsolete since version 2.2.1 of ggplot2)
Use $.on()
to bind your chosen event to the input, don't use the shortcuts like $.keydown()
etc because as of jQuery 1.7 $.on()
is the preferred method to attach event handlers (see here: http://api.jquery.com/on/ and http://api.jquery.com/bind/).
$.keydown()
is just a shortcut to $.bind('keydown')
, and $.bind()
is what $.on()
replaces (among others).
To answer your question, as far as I'm aware, unless you need to fire an event on keydown
specifically, the change
event should do the trick for you.
$('element').on('change', function(){
console.log('change');
});
To respond to the below comment, the javascript change
event is documented here: https://developer.mozilla.org/en-US/docs/Web/Events/change
And here is a working example of the change
event working on an input element, using jQuery: http://jsfiddle.net/p1m4xh08/
You can get this using Emulation (Ctrl + 8) Document mode (10,9,8,7,5), Browser Profile (Desktop, Windows Phone)
I believe it's in C:\Windows\System32\WindowsPowershell\v1.0\
. In order to confuse the innocent, MS kept it in a directory labeled "v1.0". Running this on Windows 7 and checking the version number via $Host.Version
(Determine installed PowerShell version) shows it's 2.0.
Another option is type $PSVersionTable
at the command prompt. If you are running v2.0, the output will be:
Name Value
---- -----
CLRVersion 2.0.50727.4927
BuildVersion 6.1.7600.16385
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
If you're running version 1.0, the variable doesn't exist and there will be no output.
Localization PowerShell version 1.0, 2.0, 3.0, 4.0:
The hint (using axfr) only works if the NS you're querying (ns1.foo.bar in your example) is configured to allow AXFR requests from the IP you're using; this is unlikely, unless your IP is configured as a secondary for the domain in question.
Basically, there's no easy way to do it if you're not allowed to use axfr. This is intentional, so the only way around it would be via brute force (i.e. dig a.some_domain.com
, dig b.some_domain.com
, ...), which I can't recommend, as it could be viewed as a denial of service attack.
If you are in a Linux container, such as on a Chromebook, you will need to manually browse to your localhost's address. I am aware the newer Chrome OS versions no longer have this problem, but on my Chromebook, I still had to manually browse to the localhost's address for your code to work.
To browse to your locahost's address, type this in command line: sudo ifconfig
and note the inet address under eth0.
Otherwise, as others have noted, simply type node.js filename and it will work as long as you point the browser to the proper address.
Hope this helps!
The problem solutions are fine but I found some problems in both:
As Carter Shanklin said, with this command we will obtain a csv file with the results of the query in the path specified:
insert overwrite local directory '/home/carter/staging' row format delimited fields terminated by ',' select * from hugetable;
The problem with this solution is that the csv obtained won´t have headers and will create a file that is not a CSV (so we have to rename it).
As user1922900 said, with the following command we will obtain a CSV files with the results of the query in the specified file and with headers:
hive -e 'select * from some_table' | sed 's/[\t]/,/g' > /home/yourfile.csv
With this solution we will get a CSV file with the result rows of our query, but with log messages between these rows too. As a solution of this problem I tried this, but without results.
So, to solve all these issues I created a script that execute a list of queries, create a folder (with a timestamp) where it stores the results, rename the files obtained, remove the unnecesay files and it also add the respective headers.
#!/bin/sh
QUERIES=("select * from table1" "select * from table2")
IFS=""
directoryname=$(echo "ScriptResults$timestamp")
mkdir $directoryname
counter=1
for query in ${QUERIES[*]}
do
tablename="query"$counter
hive -S -e "INSERT OVERWRITE LOCAL DIRECTORY '/data/2/DOMAIN_USERS/SANUK/users/$USER/$tablename' ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' $query ;"
hive -S -e "set hive.cli.print.header=true; $query limit 1" | head -1 | sed 's/[\t]/,/g' >> /data/2/DOMAIN_USERS/SANUK/users/$USER/$tablename/header.csv
mv $tablename/000000_0 $tablename/$tablename.csv
cat $tablename/$tablename.csv >> $tablename/header.csv.
rm $tablename/$tablename.csv
mv $tablename/header.csv $tablename/$tablename.csv
mv $tablename/$tablename.csv $directoryname
counter=$((counter+1))
rm -rf $tablename/
done
git pull
prints Already up-to-date
solution:
you might be created a repository/project in remote(server) and added some file there, Then again created a Folder in your local and initialised git git init
- this is the mistake, you should not create git init
in local, instead clone the project to your local using git clone
then pull
My problem was that I forgot to specify network alias in docker-compose.yml in php-fpm
networks:
- u-online
It is works well!
version: "3"
services:
php-fpm:
image: php:7.2-fpm
container_name: php-fpm
volumes:
- ./src:/var/www/basic/public_html
ports:
- 9000:9000
networks:
- u-online
nginx:
image: nginx:1.19.2
container_name: nginx
depends_on:
- php-fpm
ports:
- "80:8080"
- "443:443"
volumes:
- ./docker/data/etc/nginx/conf.d/default.conf:/etc/nginx/conf.d/default.conf
- ./docker/data/etc/nginx/nginx.conf:/etc/nginx/nginx.conf
- ./src:/var/www/basic/public_html
networks:
- u-online
#Docker Networks
networks:
u-online:
driver: bridge
Use a CountDownLatch
.
It's from java.util.concurrent
and it's exactly the way to wait for several threads to complete execution before continuing.
In order to achieve the callback effect you're looking after, that does require a little additional extra work. Namely, handling this by yourself in a separate thread which uses the CountDownLatch
and does wait on it, then goes on about notifying whatever it is you need to notify. There is no native support for callback, or anything similar to that effect.
EDIT: now that I further understand your question, I think you are reaching too far, unnecessarily. If you take a regular SingleThreadExecutor
, give it all the tasks, and it will do the queueing natively.
To get the second highest salary just use the below query
SELECT salary FROM employees
ORDER BY salary DESC LIMIT 1,1;
I have jus implement this library:https://github.com/jose78/go-collection. This is an example about how to use the Foreach loop:
package main
import (
"fmt"
col "github.com/jose78/go-collection/collections"
)
type user struct {
name string
age int
id int
}
func main() {
newList := col.ListType{user{"Alvaro", 6, 1}, user{"Sofia", 3, 2}}
newList = append(newList, user{"Mon", 0, 3})
newList.Foreach(simpleLoop)
if err := newList.Foreach(simpleLoopWithError); err != nil{
fmt.Printf("This error >>> %v <<< was produced", err )
}
}
var simpleLoop col.FnForeachList = func(mapper interface{}, index int) {
fmt.Printf("%d.- item:%v\n", index, mapper)
}
var simpleLoopWithError col.FnForeachList = func(mapper interface{}, index int) {
if index > 1{
panic(fmt.Sprintf("Error produced with index == %d\n", index))
}
fmt.Printf("%d.- item:%v\n", index, mapper)
}
The result of this execution should be:
0.- item:{Alvaro 6 1}
1.- item:{Sofia 3 2}
2.- item:{Mon 0 3}
0.- item:{Alvaro 6 1}
1.- item:{Sofia 3 2}
Recovered in f Error produced with index == 2
ERROR: Error produced with index == 2
This error >>> Error produced with index == 2
<<< was produced
FOR XLSX USE
SET IN $xlsName name from XLSX with extension. Example: $xlsName = 'teste.xlsx';
$objPHPExcel = new PHPExcel();
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="'.$xlsName.'"');
header('Cache-Control: max-age=0');
$objWriter->save('php://output');
FOR XLS USE
SET IN $xlsName name from XLS with extension. Example: $xlsName = 'teste.xls';
$objPHPExcel = new PHPExcel();
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="'.$xlsName.'"');
header('Cache-Control: max-age=0');
$objWriter->save('php://output');
My guess: Because Twitter sees the need to support legacy browsers, otherwise they would be using the :before
/ :after
pseudo-elements.
Legacy browsers don't support those pseudo-elements I mentioned, so they need to use an actual HTML element for the icons, and since icons don't have an 'exclusive' tag, they just went with the <i>
tag, and all browsers support that tag.
They could've certainly used a <span>
, just like you are (which is TOTALLY fine), but probably for the reason I mentioned above plus the ones mentioned by Quentin, is also why Bootstrap is using the <i>
tag.
It's a bad practice when you use extra markup for styling reasons, that's why pseudo-elements were invented, to separate content from style... but when you see the need to support legacy browsers, sometimes you're forced to do these kind of things.
PS. The fact that icons start with an 'i' and that there's an <i>
tag, is completely coincidental.
The C++ spec doesn't say exactly what algorithm you must use for the STL containers. It does, however, put certain constraints on their performance, which rules out the use of hash tables for map
and other associative containers. (They're most commonly implemented with red/black trees.) These constraints require better worst-case performance for these containers than hash tables can deliver.
Many people really do want hash tables, however, so hash-based STL associative containers have been a common extension for years. Consequently, they added unordered_map
and such to later versions of the C++ standard.
Just go to httpd.conf file, for ex. under WAMP environment its situated at:
C:\wamp\bin\apache\apache2.2.22\conf\httpd.conf
go to line no. 46 and edit Listen 80
to your requirement for ex.
Listen 8383
newer versions of WAMP uses these 2 lines:
Listen 0.0.0.0:8383
Listen [::0]:8383
Next go to line no. 171 and edit ServerName localhost:80
to your requirement for ex.
ServerName localhost:8383
Restart Apache
and its done !!
Now, you can access with your URL:
http://localhost:8383 or http://192.168.1.1:8383
Hope it helps to people looking for solution here.
The registry is a no-go. You're not sure whether the user which uses your application, has sufficient rights to write to the registry.
You can use the app.config
file to save application-level settings (that are the same for each user who uses your application).
I would store user-specific settings in an XML file, which would be saved in Isolated Storage or in the SpecialFolder.ApplicationData directory.
Next to that, as from .NET 2.0, it is possible to store values back to the app.config
file.
For AWS if the user is ubuntu use the following to connect to remote server.
chmod 400 mykey.pem
ssh -i mykey.pem ubuntu@your-ip
GET
and POST
are two different types of HTTP requests.
According to Wikipedia:
GET requests a representation of the specified resource. Note that GET should not be used for operations that cause side-effects, such as using it for taking actions in web applications. One reason for this is that GET may be used arbitrarily by robots or crawlers, which should not need to consider the side effects that a request should cause.
and
POST submits data to be processed (e.g., from an HTML form) to the identified resource. The data is included in the body of the request. This may result in the creation of a new resource or the updates of existing resources or both.
So essentially GET
is used to retrieve remote data, and POST
is used to insert/update remote data.
GET
and POST
as well as the other HTTP methods, if you are interested.
In addition to explaining the intended uses of each method, the spec also provides at least one practical reason for why GET
should only be used to retrieve data:
Authors of services which use the HTTP protocol SHOULD NOT use GET based forms for the submission of sensitive data, because this will cause this data to be encoded in the Request-URI. Many existing servers, proxies, and user agents will log the request URI in some place where it might be visible to third parties. Servers can use POST-based form submission instead
GET
for AJAX requests is that some browsers - IE in particular - will cache the results of a GET
request. So if you, for example, poll using the same GET
request you will always get back the same results, even if the data you are querying is being updated server-side. One way to alleviate this problem is to make the URL unique for each request by appending a timestamp.
Slightly off topic but could be very useful as it could be the basis for other tasks you might want to do with simulators.
I like to keep my simulator list to a minimum, and since there is no multi-select in the "Devices and Simulators" it is a pain to delete them all.
So I boot all the sims that I want to use then, remove all the simulators that I don't have booted.
Delete all the shutdown simulators:
xcrun simctl list | grep -w "Shutdown" | grep -o "([-A-Z0-9]*)" | sed 's/[\(\)]//g' | xargs -I uuid xcrun simctl delete uuid
If you need individual simulators back, just add them back to the list in "Devices and Simulators" with the plus button.
If you have sklearn isntalled, a simple alternative is to use sklearn.metrics.auc
This computes the area under the curve using the trapezoidal rule given arbitrary x, and y array
import numpy as np
from sklearn.metrics import auc
dx = 5
xx = np.arange(1,100,dx)
yy = np.arange(1,100,dx)
print('computed AUC using sklearn.metrics.auc: {}'.format(auc(xx,yy)))
print('computed AUC using np.trapz: {}'.format(np.trapz(yy, dx = dx)))
both output the same area: 4607.5
the advantage of sklearn.metrics.auc is that it can accept arbitrarily-spaced 'x' array, just make sure it is ascending otherwise the results will be incorrect
Where str could be any of these formarts: 555-555-5555 (555)555-5555 (555) 555-5555 555 555 5555 5555555555 1 555 555 5555
function telephoneCheck(str) {_x000D_
var isphone = /^(1\s|1|)?((\(\d{3}\))|\d{3})(\-|\s)?(\d{3})(\-|\s)?(\d{4})$/.test(str);_x000D_
alert(isphone);_x000D_
}_x000D_
telephoneCheck("1 555 555 5555");
_x000D_
I just spent some time figure it out.
Thoma's answer is not complete.
Say your program is test.py
, you want to use gpu0 to run this program, and keep other gpus free.
You should write CUDA_VISIBLE_DEVICES=0 python test.py
Notice it's DEVICES
not DEVICE
If you are using the following stack: Server Version: Apache Tomcat/9.0.21 Servlet Version: 4.0 JSP Version: 2.3
Then try adding <absolute-ordering />
to your web.xml file. So your file looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>spring-mvc-crud-demo</display-name>
<absolute-ordering />
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
......
SSH and Run Multiple Commands in Bash.
Separate commands with semicolons within a string, passed to echo, all piped into the ssh command. For example:
echo "df -k;uname -a" | ssh 192.168.79.134
Pseudo-terminal will not be allocated because stdin is not a terminal.
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 18274628 2546476 14799848 15% /
tmpfs 183620 72 183548 1% /dev/shm
/dev/sda1 297485 39074 243051 14% /boot
Linux newserv 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
LDAP stands for Lightweight Directory Access Protocol.It is used in Active Directory for communicating user queries..e.g.. LDAP can be used by users to search and locate a particular object like a laser printer in a domain.
meld 3.14.0
[merge]
tool = meld
[mergetool "meld"]
path = C:/Program Files (x86)/Meld/Meld.exe
cmd = \"C:/Program Files (x86)/Meld/Meld.exe\" --diff \"$BASE\" \"$LOCAL\" \"$REMOTE\" --output \"$MERGED\"
Since my images were created using ajax, and therefore not available on windows.load.
$("#page").delegate('img', 'dragstart', function (event) { event.preventDefault(); });
This way I can control which section blocks the behavior, it only uses one event binding and it works for future ajax created images without having to do anything.
With jQuery new on
binding:
$('#page').on('dragstart', 'img', function(event) { event.preventDefault(); });
(thanks @ialphan)
A Modern Solution
Most of the proposed solutions here will break with nested tables or other elements inside your td elements. I frequently use other elements inside my tables, but only want to export the topmost table. I took some of the code found here from Calumah and added in some modern vanilla ES6 JS.
Using textContent is a better solution than innerText as innerText will return any HTML inside your td elements. However, even textContent will return the text from nested elements. An even better solution is to use custom data attributes on your td and pull the values for you CSV from there.
Happy coding!
function downloadAsCSV(tableEle, separator = ','){
let csvRows = []
//only get direct children of the table in question (thead, tbody)
Array.from(tableEle.children).forEach(function(node){
//using scope to only get direct tr of node
node.querySelectorAll(':scope > tr').forEach(function(tr){
let csvLine = []
//again scope to only get direct children
tr.querySelectorAll(':scope > td').forEach(function(td){
//clone as to not remove anything from original
let copytd = td.cloneNode(true)
let data
if(copytd.dataset.val) data = copytd.dataset.val.replace(/(\r\n|\n|\r)/gm, '')
else {
Array.from(copytd.children).forEach(function(remove){
//remove nested elements before getting text
remove.parentNode.removeChild(remove)
})
data = copytd.textContent.replace(/(\r\n|\n|\r)/gm, '')
}
data = data.replace(/(\s\s)/gm, ' ').replace(/"/g, '""')
csvLine.push('"'+data+'"')
})
csvRows.push(csvLine.join(separator))
})
})
var a = document.createElement("a")
a.style = "display: none; visibility: hidden" //safari needs visibility hidden
a.href = 'data:text/csv;charset=utf-8,' + encodeURIComponent(csvRows.join('\n'))
a.download = 'testfile.csv'
document.body.appendChild(a)
a.click()
a.remove()
}
Edit: cloneNode() updated to cloneNode(true) to get insides
Public Function _
CreateTextArrayFromSourceTexts(ParamArray SourceTexts() As Variant) As String()
ReDim TargetTextArray(0 To UBound(SourceTexts)) As String
For SourceTextsCellNumber = 0 To UBound(SourceTexts)
TargetTextArray(SourceTextsCellNumber) = SourceTexts(SourceTextsCellNumber)
Next SourceTextsCellNumber
CreateTextArrayFromSourceTexts = TargetTextArray
End Function
Example:
Dim TT() As String
TT = CreateTextArrayFromSourceTexts("hi", "bye", "hi", "bcd", "bYe")
Result:
TT(0)="hi"
TT(1)="bye"
TT(2)="hi"
TT(3)="bcd"
TT(4)="bYe"
Enjoy!
Edit: I removed the duplicatedtexts deleting feature and made the code smaller and easier to use.
You can prefix attributes with ng-attr
to eval an Angular expression. When the result of the expressions undefined this removes the value from the attribute.
<a ng-attr-href="{{value || undefined}}">Hello World</a>
Will produce (when value is false)
<a ng-attr-href="{{value || undefined}}" href>Hello World</a>
So don't use false
because that will produce the word "false" as the value.
<a ng-attr-href="{{value || false}}" href="false">Hello World</a>
When using this trick in a directive. The attributes for the directive will be false if they are missing a value.
For example, the above would be false.
function post($scope, $el, $attr) {
var url = $attr['href'] || false;
alert(url === false);
}
using namespaces and subqueries You can do it:
declare @data table (RequestID varchar(20), CreatedDate datetime, HistoryStatus varchar(20))
insert into @data values ('CF-0000001','8/26/2009 1:07:01 PM','For Review');
insert into @data values ('CF-0000001','8/26/2009 1:07:01 PM','Completed');
insert into @data values ('CF-0000112','8/26/2009 1:07:01 PM','For Review');
insert into @data values ('CF-0000113','8/26/2009 1:07:01 PM','For Review');
insert into @data values ('CF-0000114','8/26/2009 1:07:01 PM','Completed');
insert into @data values ('CF-0000115','8/26/2009 1:07:01 PM','Completed');
select d1.RequestID,d1.CreatedDate,d1.HistoryStatus
from @data d1
where d1.HistoryStatus = 'Completed'
union all
select d2.RequestID,d2.CreatedDate,d2.HistoryStatus
from @data d2
where d2.HistoryStatus = 'For Review'
and d2.RequestID not in (
select RequestID
from @data
where HistoryStatus = 'Completed'
and CreatedDate = d2.CreatedDate
)
Above query returns
CF-0000001, 2009-08-26 13:07:01.000, Completed
CF-0000114, 2009-08-26 13:07:01.000, Completed
CF-0000115, 2009-08-26 13:07:01.000, Completed
CF-0000112, 2009-08-26 13:07:01.000, For Review
CF-0000113, 2009-08-26 13:07:01.000, For Review
you are not creating an arraylist for integers, but you are trying to create an arraylist for arrays of integers.
so if you want your code to work just put.
List<Integer> list = new ArrayList<>();
int x = 5;
list.add(x);