@JimBastard's accepted answer appears to be dated, I had a look and that mailer lib hasn't been touched in over 7 months, has several bugs listed, and is no longer registered in npm.
nodemailer certainly looks like the best option, however the url provided in other answers on this thread are all 404'ing.
nodemailer claims to support easy plugins into gmail, hotmail, etc. and also has really beautiful documentation.
Yes, according to RFC 3696 apostrophes are valid as long as they come before the @ symbol.
My .env file configuration is like this for laravel 5.1
MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
[email protected]
MAIL_PASSWORD=****************
MAIL_ENCRYPTION=tls
here most important thing is that I created gmail application specific password(16 digit).
I need to reveal one more thing since no luck for any of configuration. That is, whenever I changed .env file need to run this command
php artisan config:cache
And this is most most most important because without this command laravel executes previous settings from it's cache. It's required me more than 10 hours to figure out.
I had a similar error with NSManagedObject and it was because I was using Core Data but was missing the Core Data framework in Build Phases - Link Binary With Libraries, as some others have answered
I don't have enough rep to answer ClintEastwood, and the accepted answer is correct for the Web.config file. Adding this in for code difference.
When your mailSettings are set on Web.config, you don't need to do anything other than new up your SmtpClient and .Send. It finds the connection itself without needing to be referenced. You would change your C# from this:
SmtpClient smtpClient = new SmtpClient("smtp.sender.you", Convert.ToInt32(587));
System.Net.NetworkCredential credentials = new System.Net.NetworkCredential("username", "password");
smtpClient.Credentials = credentials;
smtpClient.Send(msgMail);
To this:
SmtpClient smtpClient = new SmtpClient();
smtpClient.Send(msgMail);
People have recommended MailChimp which is a good vendor for bulk email. If you're looking for a good vendor for transactional email, I might be able to help.
Over the past 6 months, we used four different SMTP vendors with the goal of figuring out which was the best one.
Here's a summary of what we found...
Conclusion
SendGrid was the best with Postmark coming in second place. We never saw any hesitation in send times with either of those two - in some cases we sent several hundred emails at once - and they both have the best ROI, given a solid featureset.
It isn't possible as far as I can tell, since a link needs HTML, and mailto links don't create an HTML email.
This is probably for security as you could add javascript or iframes to this link and the email client might open up the end user for vulnerabilities.
For security code, please don't generate your tokens this way: $token = md5(uniqid(rand(), TRUE));
rand()
is predictableuniqid()
only adds up to 29 bits of entropymd5()
doesn't add entropy, it just mixes it deterministicallyTry this out:
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport random_bytes()
and random_int()
into PHP 5 projects. It's MIT licensed and available on Github and Composer as paragonie/random_compat.
session_start();
if (empty($_SESSION['token'])) {
if (function_exists('mcrypt_create_iv')) {
$_SESSION['token'] = bin2hex(mcrypt_create_iv(32, MCRYPT_DEV_URANDOM));
} else {
$_SESSION['token'] = bin2hex(openssl_random_pseudo_bytes(32));
}
}
$token = $_SESSION['token'];
Don't just use ==
or even ===
, use hash_equals()
(PHP 5.6+ only, but available to earlier versions with the hash-compat library).
if (!empty($_POST['token'])) {
if (hash_equals($_SESSION['token'], $_POST['token'])) {
// Proceed to process the form data
} else {
// Log this as a warning and keep an eye on these attempts
}
}
You can further restrict tokens to only be available for a particular form by using hash_hmac()
. HMAC is a particular keyed hash function that is safe to use, even with weaker hash functions (e.g. MD5). However, I recommend using the SHA-2 family of hash functions instead.
First, generate a second token for use as an HMAC key, then use logic like this to render it:
<input type="hidden" name="token" value="<?php
echo hash_hmac('sha256', '/my_form.php', $_SESSION['second_token']);
?>" />
And then using a congruent operation when verifying the token:
$calc = hash_hmac('sha256', '/my_form.php', $_SESSION['second_token']);
if (hash_equals($calc, $_POST['token'])) {
// Continue...
}
The tokens generated for one form cannot be reused in another context without knowing $_SESSION['second_token']
. It is important that you use a separate token as an HMAC key than the one you just drop on the page.
Anyone who uses the Twig templating engine can benefit from a simplified dual strategy by adding this filter to their Twig environment:
$twigEnv->addFunction(
new \Twig_SimpleFunction(
'form_token',
function($lock_to = null) {
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
if (empty($_SESSION['token2'])) {
$_SESSION['token2'] = random_bytes(32);
}
if (empty($lock_to)) {
return $_SESSION['token'];
}
return hash_hmac('sha256', $lock_to, $_SESSION['token2']);
}
)
);
With this Twig function, you can use both the general purpose tokens like so:
<input type="hidden" name="token" value="{{ form_token() }}" />
Or the locked down variant:
<input type="hidden" name="token" value="{{ form_token('/my_form.php') }}" />
Twig is only concerned with template rendering; you still must validate the tokens properly. In my opinion, the Twig strategy offers greater flexibility and simplicity, while maintaining the possibility for maximum security.
If you have a security requirement that each CSRF token is allowed to be usable exactly once, the simplest strategy regenerate it after each successful validation. However, doing so will invalidate every previous token which doesn't mix well with people who browse multiple tabs at once.
Paragon Initiative Enterprises maintains an Anti-CSRF library for these corner cases. It works with one-use per-form tokens, exclusively. When enough tokens are stored in the session data (default configuration: 65535), it will cycle out the oldest unredeemed tokens first.
here is another version:
function convertHTMLEntity(text){_x000D_
const span = document.createElement('span');_x000D_
_x000D_
return text_x000D_
.replace(/&[#A-Za-z0-9]+;/gi, (entity,position,text)=> {_x000D_
span.innerHTML = entity;_x000D_
return span.innerText;_x000D_
});_x000D_
}_x000D_
_x000D_
console.log(convertHTMLEntity('Large < £ 500'));
_x000D_
I had the same problem - i wanted to pass a parameter to another page by clicking a hyperlink and get the value to go to the next page (without using GET because the parameter is stored in the URL).
to those who don't understand why you would want to do this the answer is you dont want the user to see sensitive information or you dont want someone editing the GET.
well after scouring the internet it seemed it wasnt possible to make a normal hyperlink using the POST method.
And then i had a eureka moment!!!! why not just use CSS to make the submit button look like a normal hyperlink??? ...and put the value i want to pass in a hidden field
i tried it and it works. you can see an exaple here http://paulyouthed.com/test/css-button-that-looks-like-hyperlink.php
the basic code for the form is:
<form enctype="multipart/form-data" action="page-to-pass-to.php" method="post">
<input type="hidden" name="post-variable-name" value="value-you-want-pass"/>
<input type="submit" name="whatever" value="text-to-display" id="hyperlink-style-button"/>
</form>
the basic css is:
#hyperlink-style-button{
background:none;
border:0;
color:#666;
text-decoration:underline;
}
#hyperlink-style-button:hover{
background:none;
border:0;
color:#666;
text-decoration:none;
cursor:pointer;
cursor:hand;
}
I do it this way: 1) since there're too many files (~30k) to search thru, I generate the text file list daily for use via crontab using below command:
find /to/src/folder -type f -exec file {} \; | grep text | cut -d: -f1 > ~/.src_list &
2) create a function in .bashrc:
findex() {
cat ~/.src_list | xargs grep "$*" 2>/dev/null
}
Then I can use below command to do the search:
findex "needle text"
HTH:)
<form>.WindowState = FormWindowState.Minimized;
Here is the syntax, along with some other methods you might find useful:
//add to the end of the list
stringList.add(random);
//add to the beginning of the list
stringList.add(0, random);
//replace the element at index 4 with random
stringList.set(4, random);
//remove the element at index 5
stringList.remove(5);
//remove all elements from the list
stringList.clear();
String[] func(String apple){
String[] tmp = new String[2];
for(int i=0;i<apple.length;i++){
if(apple.charAt(i)=='='){
tmp[0]=apple.substring(0,i);
tmp[1]=apple.substring(i+1,apple.length);
break;
}
}
return tmp;
}
//returns string_ARRAY_!
i like writing own methods :)
Model:
namespace MvcApplicationrazor.Models
{
public class CountryModel
{
public List<State> StateModel { get; set; }
public SelectList FilteredCity { get; set; }
}
public class State
{
public int Id { get; set; }
public string StateName { get; set; }
}
public class City
{
public int Id { get; set; }
public int StateId { get; set; }
public string CityName { get; set; }
}
}
Controller:
public ActionResult Index()
{
CountryModel objcountrymodel = new CountryModel();
objcountrymodel.StateModel = new List<State>();
objcountrymodel.StateModel = GetAllState();
return View(objcountrymodel);
}
//Action result for ajax call
[HttpPost]
public ActionResult GetCityByStateId(int stateid)
{
List<City> objcity = new List<City>();
objcity = GetAllCity().Where(m => m.StateId == stateid).ToList();
SelectList obgcity = new SelectList(objcity, "Id", "CityName", 0);
return Json(obgcity);
}
// Collection for state
public List<State> GetAllState()
{
List<State> objstate = new List<State>();
objstate.Add(new State { Id = 0, StateName = "Select State" });
objstate.Add(new State { Id = 1, StateName = "State 1" });
objstate.Add(new State { Id = 2, StateName = "State 2" });
objstate.Add(new State { Id = 3, StateName = "State 3" });
objstate.Add(new State { Id = 4, StateName = "State 4" });
return objstate;
}
//collection for city
public List<City> GetAllCity()
{
List<City> objcity = new List<City>();
objcity.Add(new City { Id = 1, StateId = 1, CityName = "City1-1" });
objcity.Add(new City { Id = 2, StateId = 2, CityName = "City2-1" });
objcity.Add(new City { Id = 3, StateId = 4, CityName = "City4-1" });
objcity.Add(new City { Id = 4, StateId = 1, CityName = "City1-2" });
objcity.Add(new City { Id = 5, StateId = 1, CityName = "City1-3" });
objcity.Add(new City { Id = 6, StateId = 4, CityName = "City4-2" });
return objcity;
}
View:
@model MvcApplicationrazor.Models.CountryModel
@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<script language="javascript" type="text/javascript">
function GetCity(_stateId) {
var procemessage = "<option value='0'> Please wait...</option>";
$("#ddlcity").html(procemessage).show();
var url = "/Test/GetCityByStateId/";
$.ajax({
url: url,
data: { stateid: _stateId },
cache: false,
type: "POST",
success: function (data) {
var markup = "<option value='0'>Select City</option>";
for (var x = 0; x < data.length; x++) {
markup += "<option value=" + data[x].Value + ">" + data[x].Text + "</option>";
}
$("#ddlcity").html(markup).show();
},
error: function (reponse) {
alert("error : " + reponse);
}
});
}
</script>
<h4>
MVC Cascading Dropdown List Using Jquery</h4>
@using (Html.BeginForm())
{
@Html.DropDownListFor(m => m.StateModel, new SelectList(Model.StateModel, "Id", "StateName"), new { @id = "ddlstate", @style = "width:200px;", @onchange = "javascript:GetCity(this.value);" })
<br />
<br />
<select id="ddlcity" name="ddlcity" style="width: 200px">
</select>
<br /><br />
}
While it may work on some platforms, be aware that platform.architecture
is not always a reliable way to determine whether python is running in 32-bit or 64-bit. In particular, on some OS X multi-architecture builds, the same executable file may be capable of running in either mode, as the example below demonstrates. The quickest safe multi-platform approach is to test sys.maxsize
on Python 2.6, 2.7, Python 3.x.
$ arch -i386 /usr/local/bin/python2.7
Python 2.7.9 (v2.7.9:648dcafa7e5f, Dec 10 2014, 10:10:46)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform, sys
>>> platform.architecture(), sys.maxsize
(('64bit', ''), 2147483647)
>>> ^D
$ arch -x86_64 /usr/local/bin/python2.7
Python 2.7.9 (v2.7.9:648dcafa7e5f, Dec 10 2014, 10:10:46)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform, sys
>>> platform.architecture(), sys.maxsize
(('64bit', ''), 9223372036854775807)
I had exactly the same problem, where is wanted to copy a file into an external hard drive for backup purposes. If I wanted to copy a complete folder, then COPY was quite happy to create the destination folder and populate it with all the files. However, I wanted to copy a file once a day and add today's date to the file. COPY was happy to copy the file and rename it in the new format, but only as long as the destination folder already existed.
my copy command looked like this:
COPY C:\SRCFOLDER\MYFILE.doc D:\DESTFOLDER\MYFILE_YYYYMMDD.doc
Like you, I looked around for alternative switches or other copy type commands, but nothing really worked like I wanted it to. Then I thought about splitting out the two different requirements by simply adding a make directory ( MD or MKDIR ) command before the copy command.
So now i have
MKDIR D:\DESTFOLDER
COPY C:\SRCFOLDER\MYFILE.doc D:\DESTFOLDER\MYFILE_YYYYMMDD.doc
If the destination folder does NOT exist, then it creates it. If the destination folder DOES exist, then it generates an error message.. BUT, this does not stop the batch file from continuing on to the copy command.
The error message says: A subdirectory or file D:\DESTFOLDER already exists
As i said, the error message doesn't stop the batch file working and it is a really simple fix to the problem.
Hope that this helps.
just to save my own deductions from all this is (for saving DBMS_OUTPUT output on the client, using sqlplus):
if you do "chmod u+rx" on the java binary and run it, it will the unpack the jar files and you can do a java -version without runtime errors
Use Ctrl + K + 0 to fold all and Ctrl + K + J to unfold all.
A variable cannot be both null
and undefined
at the same time. However, the direct answer to your question is:
if (variable != null)
One =
, not two.
There are two special clauses in the "abstract equality comparison algorithm" in the JavaScript spec devoted to the case of one operand being null
and the other being undefined
, and the result is true
for ==
and false
for !=
. Thus if the value of the variable is undefined
, it's not != null
, and if it's not null, it's obviously not != null
.
Now, the case of an identifier not being defined at all, either as a var
or let
, as a function parameter, or as a property of the global context is different. A reference to such an identifier is treated as an error at runtime. You could attempt a reference and catch the error:
var isDefined = false;
try {
(variable);
isDefined = true;
}
catch (x) {}
I would personally consider that a questionable practice however. For global symbols that may or may be there based on the presence or absence of some other library, or some similar situation, you can test for a window
property (in browser JavaScript):
var isJqueryAvailable = window.jQuery != null;
or
var isJqueryAvailable = "jQuery" in window;
for (int i=0;i < Table.Rows.Count;i++)
{
Var YourValue = Table.Rows[i]["ColumnName"];
}
This is how you can do using Colab on Google Drive
import pandas as pd
import glob
path = r'/content/drive/My Drive/data/actual/comments_only' # use your path
all_files = glob.glob(path + "/*.csv")
li = []
for filename in all_files:
df = pd.read_csv(filename, index_col=None, header=0)
li.append(df)
frame = pd.concat(li, axis=0, ignore_index=True,sort=True)
frame.to_csv('/content/drive/onefile.csv')
Tried all solutions didnt help. My solution just create new device and it will work
You need to compile ffmpeg with an AAC encoder. You can find one at AudioCoding.
In EntityFrameworkCore:
Update-Database 20161012160749_AddedOrderToCourse
where 20161012160749_AddedOrderToCourse
is a name of migration you want to rollback to.
Please take a read on my answer to a very similar question posted below. It should be clear that you should treat HttpClient
instances as singletons and re-used across requests.
What is the overhead of creating a new HttpClient per call in a WebAPI client?
an assignment returns the left-hand side of the assignment. so: yes. it is possible. however, you need to declare the variable outside:
int v = 1;
if((v = someMethod()) != 0) {
System.err.println(v);
}
There's nothing you can do about it i'm afraid as you won't be able to view it in a readable format, it's pretty much intentional and it'll show the interpreted machine code, there would be no formatting or comments as you normally get in .cs/.c files.
It's pretty much a hit and miss scenario.
Someone has already asked about it on another website
As someone who has written a real-time multi-tasking operating system from scratch...
keyboard debounce routine, keyboard driver, disk driver, video driver, file system, and finally a boot-loader - and that's just to launch it for the first time with nothing to do!
... I cannot emphasize enough how important it is to get familiar with the hardware! This is especially so if you really want to do it all yourself instead of just picking up a primitive system someone else has already laid out for you. For example, contact Intel and ask them for a CPU card for your type of CPU! This will lay it out for you - the "pin-outs", interrupts, opcodes, you name it!
Remember the hardware makes it all possible. Study the hardware. You won't regret it.
.
Put a global variable to generate the ids.
<script>
$(function(){
// Variable to get ids for the checkboxes
var idCounter=1;
$("#btn1").click(function(){
var val = $("#txtAdd").val();
$("#divContainer").append ( "<label for='chk_" + idCounter + "'>" + val + "</label><input id='chk_" + idCounter + "' type='checkbox' value='" + val + "' />" );
idCounter ++;
});
});
</script>
<div id='divContainer'></div>
<input type="text" id="txtAdd" />
<button id="btn1">Click</button>
Why could you not just do something like this?
class Foo {
constructor(myObj){
Object.assign(this, myObj);
}
get name() { return this._name; }
set name(v) { this._name = v; }
}
let foo = new Foo({ name: "bat" });
foo.toJSON() //=> your json ...
your validation should be occur before your event suppose you are going to submit your form.
anyway if you want this on onchange, so here is code.
function valid(id)
{
var textVal=document.getElementById(id).value;
if (!textVal.match(/\S/))
{
alert("Field is blank");
return false;
}
else
{
return true;
}
}
This will work as well:
.clearfix:before,
.clearfix:after {
content: "";
display: table;
}
.clearfix:after {
clear: both;
}
/* IE 6 & 7 */
.clearfix {
zoom: 1;
}
Give the class clearfix
to the parent element, for example your ul
element.
Unless you unpack them, assets remain inside the apk. Accordingly, there isn't a path you can feed into a File. The path you've given in your question will work with/in a WebView, but I think that's a special case for WebView.
You'll need to unpack the file or use it directly.
If you have a Context, you can use context.getAssets().open("myfoldername/myfilename");
to open an InputStream on the file. With the InputStream you can use it directly, or write it out somewhere (after which you can use it with File).
We're all working around some old bugs that haven't been fixed likely because it's "by design." I ran into the freezing problem @iwasrobbed described elsewhere when trying to nil the interactivePopGestureRecognizer
's delegate which seemed like it should've worked. If you want swipe behavior reconsider using backBarButtonItem
which you can customize.
I also ran into interactivePopGestureRecognizer
not working when the UINavigationBar
is hidden. If hiding the navigation bar is a concern for you, reconsider your design before implementing a workaround for a bug.
For your specific data, you can use
Select col1, col2, LTRIM(RTRIM(SUBSTRING(
STUFF(col3, CHARINDEX('|', col3,
PATINDEX('%|Client Name =%', col3) + 14), 1000, ''),
PATINDEX('%|Client Name =%', col3) + 14, 1000))) col3
from Table01
Test
select col3='Clent ID = 4356hy|Client Name = B B BOB|Client Phone = 667-444-2626|Client Fax = 666-666-0151|Info = INF8888877 -MAC333330554/444400800'
into t1m
from master..spt_values a
cross join master..spt_values b
where a.number < 100
-- (711704 row(s) affected)
set statistics time on
dbcc dropcleanbuffers
dbcc freeproccache
select a=CHARINDEX('|Client Name =', col3) into #tmp1 from t1m
drop table #tmp1
dbcc dropcleanbuffers
dbcc freeproccache
select a=PATINDEX('%|Client Name =%', col3) into #tmp2 from t1m
drop table #tmp2
set statistics time off
Timings
CHARINDEX:
SQL Server Execution Times (1):
CPU time = 5656 ms, elapsed time = 6418 ms.
SQL Server Execution Times (2):
CPU time = 5813 ms, elapsed time = 6114 ms.
SQL Server Execution Times (3):
CPU time = 5672 ms, elapsed time = 6108 ms.
PATINDEX:
SQL Server Execution Times (1):
CPU time = 5906 ms, elapsed time = 6296 ms.
SQL Server Execution Times (2):
CPU time = 5860 ms, elapsed time = 6404 ms.
SQL Server Execution Times (3):
CPU time = 6109 ms, elapsed time = 6301 ms.
Conclusion
The timings for CharIndex and PatIndex for 700k calls are within 3.5% of each other, so I don't think it would matter whichever is used. I use them interchangeably when both can work.
Go to the path in where the gem is and call gem install -l gemname.gem
After lot of struggle finally got it working. ( Perfectly tested)
The below example will also support the fact that color of already clicked button should not be changes
JQuery Code
var flag = 0; // Flag is to check if you are hovering on already clicked item
$("a").click(function() {
$('a').removeClass("YourColorClass");
$(this).addClass("YourColorClass");
flag=1;
});
$("a").mouseover(function() {
if ($(this).hasClass("YourColorClass")) {
flag=1;
}
else{
$(this).addClass("YourColorClass");
};
});
$("a").mouseout(function() {
if (flag == 0) {
$(this).removeClass("YourColorClass");
}
else{
flag = 0;
}
});
I had to delay a form submission in jQuery in order to execute an asynchronous call. Here's the simplified code...
$("$theform").submit(function(e) {
e.preventDefault();
var $this = $(this);
$.ajax('/path/to/script.php',
{
type: "POST",
data: { value: $("#input_control").val() }
}).done(function(response) {
$this.unbind('submit').submit();
});
});
As suggested previously, Logbook is just about perfect for this, but I did have a little trouble setting it up when using Java modules, due to a split package between logbook-api
and logbook-core
.
For my Gradle + Spring Boot project, I needed
dependencies {
compileOnly group: 'org.zalando', name: 'logbook-api', version: '2.4.1'
runtimeOnly group: 'org.zalando', name: 'logbook-spring-boot-starter', version: '2.4.1'
//...
}
<configuration>
<!-- HTTP Requests and Responses -->
<logger name="org.zalando.logbook" level="trace" />
</configuration>
Same as jkp's answer, but here's the full command:
git reset --hard a0d3fe6
where a0d3fe6 is found by doing
git reflog
and looking at the point at which you want to undo to.
$out.='<option value="'.$key.'">'.$value["name"];
me funciono con esta
"<a href='javascript:void(0)' onclick='cargar_datos_cliente(\"$row->DSC_EST\")' class='button micro asignar margin-none'>Editar</a>";
Use csv parser library, I'm explaining in more details how to use it here .
var csv = require('csv');
csv.parse(csvText, {columns: true}, function(err, data){
console.log(JSON.stringify(data, null, 2));
});
In Python 3 there is an exit()
function:
elif choice == "q":
exit()
You can use safe substring:
org.apache.commons.lang3.StringUtils.substring(str, 0, LENGTH);
simply change <div>
to <tbody>
<table id="authenticationSetting" style="display: none">
<tbody id="authenticationOuterIdentityBlock" style="display: none;">
<tr>
<td class="orionSummaryHeader">
<orion:message key="policy.wifi.enterprise.authentication.outeridentitity" />:</td>
<td class="orionSummaryColumn">
<orion:textbox id="authenticationOuterIdentity" size="30" />
</td>
</tr>
</tbody>
</table>
Note: this answer applies only to Angular components and directives, NOT services.
I had this same issue when ngOnInit
(and other lifecycle hooks) were not firing for my components, and most searches led me here.
The issue is that I was using the arrow function syntax (=>
) like this:
class MyComponent implements OnInit {
// Bad: do not use arrow function
public ngOnInit = () => {
console.log("ngOnInit");
}
}
Apparently that does not work in Angular 6. Using non-arrow function syntax fixes the issue:
class MyComponent implements OnInit {
public ngOnInit() {
console.log("ngOnInit");
}
}
Accidentally i stumbled upon another way to do a force kill on Unix (for those who use Weblogic). This is cheaper and more elegant than running /bin/kill -9 via Runtime.exec().
import weblogic.nodemanager.util.Platform;
import weblogic.nodemanager.util.ProcessControl;
...
ProcessControl pctl = Platform.getProcessControl();
pctl.killProcess(pid);
And if you struggle to get the pid, you can use reflection on java.lang.UNIXProcess, e.g.:
Process proc = Runtime.getRuntime().exec(cmdarray, envp);
if (proc instanceof UNIXProcess) {
Field f = proc.getClass().getDeclaredField("pid");
f.setAccessible(true);
int pid = f.get(proc);
}
Question has a good pagerank on google, so for anyone who's looking for answer to this question this might be helpful.
There is an extension in google chrome marketspace to do exactly that: https://chrome.google.com/webstore/detail/hccmhjmmfdfncbfpogafcbpaebclgjcp
If you want to print something = '@'
2 times in a line, you can write this:
print(something * 2)
If you want to print 4 lines of something, you can use a for loop:
for i in range(4):
print(something)
I would suggest making the div
s a little smaller and adding a margin of a percentage.
<div style="width:100%; height: 200px; background-color: grey;">_x000D_
<div style="width: 23%; float:left; margin: 1%; background-color: red;">A</div>_x000D_
<div style="width: 23%; float:left; margin: 1%; background-color: orange;">B</div>_x000D_
<div style="width: 23%; float:left; margin: 1%; background-color: green;">C</div>_x000D_
<div style="width: 23%; float:left; margin: 1%; background-color: blue;">D</div>_x000D_
</div>
_x000D_
Array object iteration, using jQuery, (use the second parameter to print the string).
$.each(array, function(index, item) {
console.log(index, item);
});
For people (like me) coming here via search engine and just looking for a solution which works out of the box, I recommend installing mpu
. Install it via pip install mpu --user
and use it like this to get the haversine distance:
import mpu
# Point one
lat1 = 52.2296756
lon1 = 21.0122287
# Point two
lat2 = 52.406374
lon2 = 16.9251681
# What you were looking for
dist = mpu.haversine_distance((lat1, lon1), (lat2, lon2))
print(dist) # gives 278.45817507541943.
An alternative package is gpxpy
.
If you don't want dependencies, you can use:
import math
def distance(origin, destination):
"""
Calculate the Haversine distance.
Parameters
----------
origin : tuple of float
(lat, long)
destination : tuple of float
(lat, long)
Returns
-------
distance_in_km : float
Examples
--------
>>> origin = (48.1372, 11.5756) # Munich
>>> destination = (52.5186, 13.4083) # Berlin
>>> round(distance(origin, destination), 1)
504.2
"""
lat1, lon1 = origin
lat2, lon2 = destination
radius = 6371 # km
dlat = math.radians(lat2 - lat1)
dlon = math.radians(lon2 - lon1)
a = (math.sin(dlat / 2) * math.sin(dlat / 2) +
math.cos(math.radians(lat1)) * math.cos(math.radians(lat2)) *
math.sin(dlon / 2) * math.sin(dlon / 2))
c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a))
d = radius * c
return d
if __name__ == '__main__':
import doctest
doctest.testmod()
The other alternative package is [haversine][1]
from haversine import haversine, Unit
lyon = (45.7597, 4.8422) # (lat, lon)
paris = (48.8567, 2.3508)
haversine(lyon, paris)
>> 392.2172595594006 # in kilometers
haversine(lyon, paris, unit=Unit.MILES)
>> 243.71201856934454 # in miles
# you can also use the string abbreviation for units:
haversine(lyon, paris, unit='mi')
>> 243.71201856934454 # in miles
haversine(lyon, paris, unit=Unit.NAUTICAL_MILES)
>> 211.78037755311516 # in nautical miles
They claim to have performance optimization for distances between all points in two vectors
from haversine import haversine_vector, Unit
lyon = (45.7597, 4.8422) # (lat, lon)
paris = (48.8567, 2.3508)
new_york = (40.7033962, -74.2351462)
haversine_vector([lyon, lyon], [paris, new_york], Unit.KILOMETERS)
>> array([ 392.21725956, 6163.43638211])
ALTER TABLE `user_customer_permission` MODIFY `id` INT;
ALTER TABLE `user_customer_permission` DROP PRIMARY KEY;
This problem mostly occurs due to the error in setText()
method
Solution is simple put your Integer
value by converting into string
type
as
textview.setText(Integer.toString(integer_value));
You (or Joomla) is likely including this file multiple times. Enclose your function in a conditional block:
if (!function_exists('parseDate')) {
// ... proceed to declare your function
}
{
"success": true,
"data": {
"BLR": {
"origin": "JAI",
"destination": "BLR",
"price": 127,
"transfers": 0,
"airline": "LB",
"flight_number": 655,
"departure_at": "2017-06-03T18:20:00Z",
"return_at": "2017-06-07T08:30:00Z",
"expires_at": "2017-03-05T08:40:31Z"
}
}
};
In my case, with react-native, the error was that I had
import React, {
AppRegistry,
Component,
Text,
View,
TouchableHighlight
} from 'react-native';
instead of
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View,
Image,
AsyncStorage
} from 'react-native';
\d
is called a character class and will match digits. It is equal to [0-9]
.
+
matches 1 or more occurrences of the character before.
So \d+
means match 1 or more digits.
this works for me:
cmake -D DBUILD_SHARED_LIBS=ON DBUILD_STATIC_LIBS=ON DBUILD_TESTS=ON ..
$NewDate=Date('Y-m-d', strtotime('+365 days'));
echo $NewDate; //2020-05-21
I am using
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
elseif(COMPILER_SUPPORTS_CXX0X)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()
But if you want to play with C++11
, g++ 4.6.1
is pretty old.
Try to get a newer g++
version.
you can read this tutorial for how to use functions of statistical distributions in python. http://docs.scipy.org/doc/scipy/reference/tutorial/stats.html
from scipy.stats import norm
import matplotlib.pyplot as plt
import numpy as np
#initialize a normal distribution with frozen in mean=-1, std. dev.= 1
rv = norm(loc = -1., scale = 1.0)
rv1 = norm(loc = 0., scale = 2.0)
rv2 = norm(loc = 2., scale = 3.0)
x = np.arange(-10, 10, .1)
#plot the pdfs of these normal distributions
plt.plot(x, rv.pdf(x), x, rv1.pdf(x), x, rv2.pdf(x))
I've had this sort of problem.....
The solve: cmd
/ powershell
run as ADMINISTRATOR! I always forget.
Notice: In powershell
, you need to put .\
for example:
.\httpd -k shutdown .\httpd -k stop .\httpd -k uninstall
Result: Removing the apache2.4
service The Apache2.4
service has been removed successfully.
The term "JPEG" is an acronym for the Joint Photographic Experts Group, which created the standard.
.jpeg
and .jpg
files are identical.
JPEG images are identified with 6 different standard file name extensions:
.jpg
.jpeg
.jpe
.jif
.jfif
.jfi
The jpg
was used in Microsoft Operating Systems when they only supported 3 chars-extensions.
The JPEG File Interchange Format (JFIF - last three extensions in my list) is an image file format standard for exchanging JPEG encoded files compliant with the JPEG Interchange Format (JIF) standard, solving some of JIF's limitations in regard. Image data in JFIF files is compressed using the techniques in the JPEG standard, hence JFIF is sometimes referred to as "JPEG/JFIF".
pdf2ps large.pdf small.pdf
is enough, instead of two steps
pdf2ps large.pdf very_large.ps
ps2pdf very_large.ps small.pdf
However, ps2pdf large.pdf small.pdf
is a better choice.
ps2pdf
is much fasterpdf2ps
sometimes produces larger file.I've been using this function for a while. it returns a boolean value.
// Validates email address of course.
function validEmail(e) {
var filter = /^\s*[\w\-\+_]+(\.[\w\-\+_]+)*\@[\w\-\+_]+\.[\w\-\+_]+(\.[\w\-\+_]+)*\s*$/;
return String(e).search (filter) != -1;
}
With the course of : TestMyCode Programming assignment evaluator, that one of the exercises was this kind of issue, I wrote this answer:
import java.util.Scanner;
public class LeapYear {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.println("Type a year: ");
int year = Integer.parseInt(reader.nextLine());
if (year % 400 == 0 && year % 100 == 0 && year % 4 == 0) {
System.out.println("The year is a leap year");
} else
if (year % 4 == 0 && year%100!=0 ) {
System.out.println("The year is a leap year");
} else
{
System.out.println("The year is not a leap year");
}
}
}
I shut down the computer and restarted after installing the software and that fixed my problem.
I just had the same problem and discovered an alternative solution using the validation API - works without black magic in all major browsers (Chrome, Firefox, Safari) except IE. This solution simply prevents users from entering invalid values. I also included a fallback for IE, which is not nice but works at least.
Context: onInput function is called on input events, setInputValue is used to set the value of the input element, previousInputValue contains the last valid input value (updated in setInputValue calls).
function onInput (event) {
const inputValue = event.target.value;
// badInput supported on validation api (except IE)
// in IE it will be undefined, so we need strict value check
const badInput = event.target.validity.badInput;
// simply prevent modifying the value
if (badInput === true) {
// it's still possible to enter invalid values in an empty input, so we'll need this trick to prevent that
if (previousInputValue === '') {
setInputValue(' ');
setTimeout(() => {
setInputValue('');
}, 1);
}
return;
}
if (badInput === false) {
setInputValue(inputValue);
return;
}
// fallback case for IE and other abominations
// remove everything from the string expect numbers, point and comma
// replace comma with points (parseFloat works only with points)
let stringVal = String(inputValue)
.replace(/([^0-9.,])/g, '')
.replace(/,/g, '.');
// remove all but first point
const pointIndex = stringVal.indexOf('.');
if (pointIndex !== -1) {
const pointAndBefore = stringVal.substring(0, pointIndex + 1);
const afterPoint = stringVal.substring(pointIndex + 1);
// removing all points after the first
stringVal = `${pointAndBefore}${afterPoint.replace(/\./g, '')}`;
}
const float = parseFloat(stringVal);
if (isNaN(float)) {
// fallback to emptying the input if anything goes south
setInputValue('');
return;
}
setInputValue(stringVal);
}
Using FileShare fixed my issue of opening file even if it is opened by another process.
using (var stream = File.Open(path, FileMode.Open, FileAccess.Write, FileShare.ReadWrite))
{
}
I found the other examples unclear, so I did my own test which confirmed that a class instance is passed by reference and as such actions done to the class will affect the source instance.
In other words, my Increment method modifies its parameter myClass everytime its called.
class Program
{
static void Main(string[] args)
{
MyClass myClass = new MyClass();
Console.WriteLine(myClass.Value); // Displays 1
Increment(myClass);
Console.WriteLine(myClass.Value); // Displays 2
Increment(myClass);
Console.WriteLine(myClass.Value); // Displays 3
Increment(myClass);
Console.WriteLine(myClass.Value); // Displays 4
Console.WriteLine("Hit Enter to exit.");
Console.ReadLine();
}
public static void Increment(MyClass myClassRef)
{
myClassRef.Value++;
}
}
public class MyClass
{
public int Value {get;set;}
public MyClass()
{
Value = 1;
}
}
The bottom statement is equivalent to:
.half {
flex-grow: 0;
flex-shrink: 0;
flex-basis: 50%;
}
Which, in this case, would be equivalent as the box is not allowed to flex and therefore retains the initial width set by flex-basis.
Flex-basis defines the default size of an element before the remaining space is distributed so if the element were allowed to flex (grow/shrink) it may not be 50% of the width of the page.
I've found that I regularly return to https://css-tricks.com/snippets/css/a-guide-to-flexbox/ for help regarding flexbox :)
If you want the value you are assigning in the constructor, you need to add a method in the enum definition to return that value.
If you want a unique number that represent the enum value, you can use ordinal()
.
Configuration configManager = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
KeyValueConfigurationCollection confCollection = configManager.AppSettings.Settings;
confCollection["YourKey"].Value = "YourNewKey";
configManager.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(configManager.AppSettings.SectionInformation.Name);
Heres a tidy solution in TypeScript:
import { Readable } from 'stream'
class ReadableString extends Readable {
private sent = false
constructor(
private str: string
) {
super();
}
_read() {
if (!this.sent) {
this.push(Buffer.from(this.str));
this.sent = true
}
else {
this.push(null)
}
}
}
const stringStream = new ReadableString('string to be streamed...')
Try perl -MCPAN -e "upgrade /(.\*)/"
. It works fine for me.
Updated March 31st, 2016:
We have announced that Visual Studio now includes Xamarin at no extra cost, including Community Edition, which is free for individual developers, open source projects, academic research, education, and small professional teams. There is no size restriction on the Community Edition and offers the same features as the Pro & Enterprise editions. Read more about the update here: https://blog.xamarin.com/xamarin-for-all/
Be sure to browse the store on how to download and get started: https://visualstudio.microsoft.com/vs/pricing/ and there is a nice FAQ section: https://visualstudio.microsoft.com/vs/support/
To remove rows based on Nan value of particular column:
d= pd.DataFrame([[2,3],[4,None]]) #creating data frame
d
Output:
0 1
0 2 3.0
1 4 NaN
d = d[np.isfinite(d[1])] #Select rows where value of 1st column is not nan
d
Output:
0 1
0 2 3.0
you can use below methods
public static String parseUrl(String surl) throws Exception
{
URL u = new URL(surl);
return new URI(u.getProtocol(), u.getAuthority(), u.getPath(), u.getQuery(), u.getRef()).toString();
}
or
public String parseURL(String url, Map<String, String> params)
{
Builder builder = Uri.parse(url).buildUpon();
for (String key : params.keySet())
{
builder.appendQueryParameter(key, params.get(key));
}
return builder.build().toString();
}
the second one is better than first.
Check your php.ini, I'm using Apache2.2 + php 5.3. and I had the same problem and after modify the php.ini in order to set the libraries directory of PHP, it worked correctly. The problem is the default extension_dir
configuration value.
The default (and WRONG) value for my work enviroment is
; extension_dir="ext"
without any full path and commented with a semicolon.
There are two solution that worked fine for me.
1.- Including this line at php.ini file
extension_dir="X:/[PathToYourPHPDirectory]/ext
Where X: is your drive letter instalation (normally C: or D: )
2.- You can try to simply uncomment, deleting semicolon. Include the next line at php.ini file
extension_dir="ext"
Both ways worked fine for me but choose yours. Don't forget restart Apache before try again.
I hope this help you.
For a variable:
foo.h:
class foo
{
private:
static int i;
};
foo.cpp:
int foo::i = 0;
This is because there can only be one instance of foo::i
in your program. It's sort of the equivalent of extern int i
in a header file and int i
in a source file.
For a constant you can put the value straight in the class declaration:
class foo
{
private:
static int i;
const static int a = 42;
};
Oneliner:
do_X() if len(your_list) > your_index else do_something_else()
Full example:
In [10]: def do_X():
...: print(1)
...:
In [11]: def do_something_else():
...: print(2)
...:
In [12]: your_index = 2
In [13]: your_list = [1,2,3]
In [14]: do_X() if len(your_list) > your_index else do_something_else()
1
Just for info. Imho, try ... except IndexError
is better solution.
To get the maximum value of an unsigned integer type t
whose width is at least the one of unsigned int
(otherwise one gets problems with integer promotions): ~(t) 0
. If one wants to also support shorter types, one can add another cast: (t) ~(t) 0
.
If the integer type t
is signed, assuming that there are no padding bits, one can use:
((((t) 1 << (sizeof(t) * CHAR_BIT - 2)) - 1) * 2 + 1)
The advantage of this formula is that it is not based on some unsigned version of t
(or a larger type), which may be unknown or unavailable (even uintmax_t
may not be sufficient with non-standard extensions). Example with 6 bits (not possible in practice, just for readability):
010000 (t) 1 << (sizeof(t) * CHAR_BIT - 2)
001111 - 1
011110 * 2
011111 + 1
In two's complement, the minimum value is the opposite of the maximum value, minus 1 (in the other integer representations allowed by the ISO C standard, this is just the opposite of the maximum value).
Note: To detect signedness in order to decide which version to use: (t) -1 < 0
will work with any integer representation, giving 1 (true) for signed integer types and 0 (false) for unsigned integer types. Thus one can use:
(t) -1 < 0 ? ((((t) 1 << (sizeof(t) * CHAR_BIT - 2)) - 1) * 2 + 1) : (t) ~(t) 0
I'm in windows 10, using WAMP64 server. Searched for my.cnf
and my.ini
. Found my.ini
in C:\wamp64\bin\mariadb\mariadb10.2.14
.
Following the instructions from the colleagues:
my.ini
in a text editor, searched for [mysqld]
'skip-grant-tables'
at the end of the [mysqld]
section (but within it)skip-grant-tables
optionALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'newpassword';
my.ini
file, erase the 'skip-grant-tables'
line, save the fileNow you can enter with the new password. Thanks to all answers here.
The existing answers are valid, but why re-invent the wheel and bother with lower level WebRequest
types while WebClient
already implements FTP uploading neatly:
using (var client = new WebClient())
{
client.Credentials = new NetworkCredential(ftpUsername, ftpPassword);
client.UploadFile("ftp://host/path.zip", WebRequestMethods.Ftp.UploadFile, localFile);
}
I was able to use the workspace setting that other people on this page have been asking for.
In Preferences, ?+P, search for python.pythonPath
in the search bar.
You should see something like:
// Path to Python, you can use a custom version of Python by modifying this setting to include the full path.
"python.pythonPath": "python"
Then click on the WORKSPACE SETTINGS tab on the right side of the window. This will make it so the setting is only applicable to the workspace you're in.
Afterwards, click on the pencil icon next to "python.pythonPath". This should copy the setting over the workspace settings.
Change the value to something like:
"python.pythonPath": "${workspaceFolder}/venv"
Try adding ?wmode=opaque
to the URL or &wmode=opaque
if there already is a parameter.
If it doesn't work try this instead, &wmode=transparent
which will work in IE browser as well.
You can add multiple-column unique indexes via phpMyAdmin. (I tested in version 4.0.4)
Navigate to the structure page for your target table. Add a unique index to one of the columns. Expand the Indexes list on the bottom of the structure page to see the unique index you just added. Click the edit icon, and in the following dialog you can add additional columns to that unique index.
It's only supposed to send the information to the server. The reason that it must preceed the file field is that it has to come before the file payload in the request for the server to be able to use it to check the size of the upload.
How the value is used on the server depends on what you use to take care of the upload. The code is supposedly intended for a specific upload component that specifically looks for that value.
It seems that the built in upload support in PHP is one to use this field value.
Add the following in the base.mk file. The following 3rd line is important
-include $(TOP)/defs.mk
CFLAGS=$(DEBUG) -Wall -W -Wwrite-strings
CFLAGS_C=-Wmissing-prototypes
CFLAGS_CXX=-std=c++0x
LDFLAGS=
LIBS=
to avoid the #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options
When your code does the following:
You run the risk that the permissions change between 1 and 2 because you can't predict what else will be happening on the system at runtime. Therefore, your code should handle the situation where an UnauthorisedAccessException is thrown even if you have previously checked permissions.
Note that the SecurityManager class is used to check CAS permissions and doesn't actually check with the OS whether the current user has write access to the specified location (through ACLs and ACEs). As such, IsGranted will always return true for locally running applications.
Example (derived from Josh's example):
//1. Provide early notification that the user does not have permission to write.
FileIOPermission writePermission = new FileIOPermission(FileIOPermissionAccess.Write, filename);
if(!SecurityManager.IsGranted(writePermission))
{
//No permission.
//Either throw an exception so this can be handled by a calling function
//or inform the user that they do not have permission to write to the folder and return.
}
//2. Attempt the action but handle permission changes.
try
{
using (FileStream fstream = new FileStream(filename, FileMode.Create))
using (TextWriter writer = new StreamWriter(fstream))
{
writer.WriteLine("sometext");
}
}
catch (UnauthorizedAccessException ex)
{
//No permission.
//Either throw an exception so this can be handled by a calling function
//or inform the user that they do not have permission to write to the folder and return.
}
It's tricky and not recommended to try to programatically calculate the effective permissions from the folder based on the raw ACLs (which are all that are available through the System.Security.AccessControl classes). Other answers on Stack Overflow and the wider web recommend trying to carry out the action to know whether permission is allowed. This post sums up what's required to implement the permission calculation and should be enough to put you off from doing this.
Now with Android Studio and Gradle, you can have multiple resource folders in your project. Allowing to organize not only your layout files but any kind of resources.
It's not exactly a sub-folder, but may separte parts of your application.
The configuration is like this:
sourceSets {
main {
res.srcDirs = ['src/main/res', 'src/main/res2']
}
}
Check the documentation.
Just to note that prefixing the tagName in a selector is slower than just using the id. In your case jQuery will get all the inputs rather than just using the getElementById. Just use $('#textbox')
Javascript may be hooking up to the click-event of the anchor, rather than injecting any href.
For example, jQuery:
$('a.view').click(function() { Alert('anchor without a href was clicked');});
Of course, the javascript can do anything it wants with the click event--such as navigate to some other page (in which case the href is never set, but the anchor still behaves as though it were)
The original solution (setting the ForkJoinPool common parallelism property) no longer works. Looking at the links in the original answer, an update which breaks this has been back ported to Java 8. As mentioned in the linked threads, this solution was not guaranteed to work forever. Based on that, the solution is the forkjoinpool.submit with .get solution discussed in the accepted answer. I think the backport fixes the unreliability of this solution also.
ForkJoinPool fjpool = new ForkJoinPool(10);
System.out.println("stream.parallel");
IntStream range = IntStream.range(0, 20);
fjpool.submit(() -> range.parallel()
.forEach((int theInt) ->
{
try { Thread.sleep(100); } catch (Exception ignore) {}
System.out.println(Thread.currentThread().getName() + " -- " + theInt);
})).get();
System.out.println("list.parallelStream");
int [] array = IntStream.range(0, 20).toArray();
List<Integer> list = new ArrayList<>();
for (int theInt: array)
{
list.add(theInt);
}
fjpool.submit(() -> list.parallelStream()
.forEach((theInt) ->
{
try { Thread.sleep(100); } catch (Exception ignore) {}
System.out.println(Thread.currentThread().getName() + " -- " + theInt);
})).get();
I tried this and now working
Configuration for c_cpp_properties.json
{
"configurations": [
{
"name": "Win32",
"compilerPath": "C:/MinGW/bin/g++.exe",
"includePath": [
"C:/MinGW/lib/gcc/mingw32/9.2.0/include/c++"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"cStandard": "c17",
"cppStandard": "c++17",
"intelliSenseMode": "windows-gcc-x64"
}
],
"version": 4
}
task.json configuration
File
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++.exe build active file",
"command": "C:\\MinGW\\bin\\g++.exe",
"args": [
"-g",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "C:\\MinGW\\bin"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: C:\\MinGW\\bin\\g++.exe"
}
]}
Currently you cannot use the Registry API for that task. It only allows you to delete a repository or a specific tag.
In general, deleting a repository means, that all the tags associated to this repo are deleted.
Deleting a tag means, that the association between an image and a tag is deleted.
None of the above will delete a single image. They are left on your disk.
For this workaround you need to have your docker images stored locally.
A workaround for your solution would be to delete all but the latest tags and thereby potentially removing the reference to the associated images. Then you can run this script to remove all images, that are not referenced by any tag or the ancestry of any used image.
Consider an image graph like this where the capital letters (A
, B
, ...) represent short image IDs and <-
means that an image is based on another image:
A <- B <- C <- D
Now we add tags to the picture:
A <- B <- C <- D
| |
| <version2>
<version1>
Here, the tag <version1>
references the image C
and the tag <version2>
references the image D
.
In your question you said that you wanted to remove
all images but the
latest
. Now, this terminology is not quite correct. You've mixed images and tags. Looking at the graph I think you would agree that the tag <version2>
represents the latest version. In fact, according to this question you can have a tag that represents the latest version:
A <- B <- C <- D
| |
| <version2>
| <latest>
<version1>
Since the <latest>
tag references image D
I ask you: do you really want to delete all but image D
? Probably not!
If you delete the tag <version1>
using the Docker REST API you will get this:
A <- B <- C <- D
|
<version2>
<latest>
Remember: Docker will never delete an image! Even if it did, in this case it cannot delete an image, since the image C
is part of the ancestry for the image D
which is tagged.
Even if you use this script, no image will be deleted.
Under the condition that you can control when somebody can pull or push to your registry (e.g. by disabling the REST interface). You can delete an image from an image graph if no other image is based on it and no tag refers to it.
Notice that in the following graph, the image D
is not based on C
but on B
. Therefore, D
doesn't depend on C
. If you delete tag <version1>
in this graph, the image C
will not be used by any image and this script can remove it.
A <- B <--------- D
\ |
\ <version2>
\ <latest>
\ <- C
|
<version1>
After the cleanup your image graph looks like this:
A <- B <- D
|
<version2>
<latest>
Is this what you want?
returning true or false indicates that whether execution should continue or stop right there. So just an example
<input type="button" onclick="return func();" />
Now if func() is defined like this
function func()
{
// do something
return false;
}
the click event will never get executed. On the contrary if return true is written then the click event will always be executed.
Well, why not just add them to your existing character class?
var pattern = /[a-zA-Z0-9&._-]/
If you need to check whether a string consists of nothing but those characters you have to anchor the expression as well:
var pattern = /^[a-zA-Z0-9&._-]+$/
The added ^
and $
match the beginning and end of the string respectively.
Testing for letters, numbers or underscore can be done with \w
which shortens your expression:
var pattern = /^[\w&.-]+$/
As mentioned in the comment from Nathan, if you're not using the results from .match()
(it returns an array with what has been matched), it's better to use RegExp.test()
which returns a simple boolean:
if (pattern.test(qry)) {
// qry is non-empty and only contains letters, numbers or special characters.
}
Update 2
In case I have misread the question, the below will check if all three separate conditions are met.
if (/[a-zA-Z]/.test(qry) && /[0-9]/.test(qry) && /[&._-]/.test(qry)) {
// qry contains at least one letter, one number and one special character
}
paulsm4's answer is the correct one. If in onBackPressed()
you just return, it will disable the back button. However, I think a better approach given your use case is to flip the activity logic, i.e. make your home activity the main one, check if the user is signed in there, if not, start the sign in activity. The reason is that if you override the back button in your main activity, most users will be confused when they press back and your app does nothing.
Example: a simple function call wrapper:
def measure_cpu_time(f, *args):
t_start = time.process_time()
ret = f(*args)
t_end = time.process_time()
return t_end - t_start, ret
I had the same problem as Sharath Prabhal, and I got another (to me clearer) solution :
val s = Seq("apple", "oranges", "apple", "banana", "apple", "oranges", "oranges")
s.groupBy(l => l).map(t => (t._1, t._2.length))
With as result :
Map(banana -> 1, oranges -> 3, apple -> 3)
I wrote a tiny little function which does this. It only escapes "
, &
, <
and >
(but usually that's all you need anyway). It is slightly more elegant then the earlier proposed solutions in that it only uses one .replace()
to do all the conversion. (EDIT 2: Reduced code complexity making the function even smaller and neater, if you're curious about the original code see end of this answer.)
function escapeHtml(text) {
'use strict';
return text.replace(/[\"&<>]/g, function (a) {
return { '"': '"', '&': '&', '<': '<', '>': '>' }[a];
});
}
This is plain Javascript, no jQuery used.
/
and '
tooEdit in response to mklement's comment.
The above function can easily be expanded to include any character. To specify more characters to escape, simply insert them both in the character class in the regular expression (i.e. inside the /[...]/g
) and as an entry in the chr
object. (EDIT 2: Shortened this function too, in the same way.)
function escapeHtml(text) {
'use strict';
return text.replace(/[\"&'\/<>]/g, function (a) {
return {
'"': '"', '&': '&', "'": ''',
'/': '/', '<': '<', '>': '>'
}[a];
});
}
Note the above use of '
for apostrophe (the symbolic entity '
might have been used instead ā it is defined in XML, but was originally not included in the HTML spec and might therefore not be supported by all browsers. See: Wikipedia article on HTML character encodings). I also recall reading somewhere that using decimal entities is more widely supported than using hexadecimal, but I can't seem to find the source for that now though. (And there cannot be many browsers out there which does not support the hexadecimal entities.)
Note: Adding /
and '
to the list of escaped characters isn't all that useful, since they do not have any special meaning in HTML and do not need to be escaped.
escapeHtml
FunctionEDIT 2: The original function used a variable (chr
) to store the object needed for the .replace()
callback. This variable also needed an extra anonymous function to scope it, making the function (needlessly) a little bit bigger and more complex.
var escapeHtml = (function () {
'use strict';
var chr = { '"': '"', '&': '&', '<': '<', '>': '>' };
return function (text) {
return text.replace(/[\"&<>]/g, function (a) { return chr[a]; });
};
}());
I haven't tested which of the two versions are faster. If you do, feel free to add info and links about it here.
It is an error about react-scripts file missing in your node_modules/
directory at the time of installation.
Check your react-script dependency is avaliable or not in package.json
.
If not available then add it manually via:
npm install react-scripts --save
HTTP status codes say something about the HTTP protocol. HTTP 200
means transmission is OK on the HTTP level (i.e request was technically OK and server was able to respond properly). See this wiki page for a list of all codes and their meaning.
HTTP 200 has nothing to do with success or failure of your "business code". In your example the HTTP 200
is an acceptable status to indicate that your "business code error message" was successfully transferred, provided that no technical issues prevented the business logic to run properly.
Alternatively you could let your server respond with HTTP 5xx
if technical or unrecoverable problems happened on the server. Or HTTP 4xx
if the incoming request had issues (e.g. wrong parameters, unexpected HTTP method...) Again, these all indicate technical errors, whereas HTTP 200
indicates NO technical errors, but makes no guarantee about business logic errors.
To summarize: YES it is valid to send error messages (for non-technical issues) in your http response together with HTTP status 200. Whether this applies to your case is up to you. If for instance the client is asking for a file that isn't there, that would be more like a 404
. If there is a misconfiguration on the server that might be a 500
. If client asks for a seat on a plane that is booked full, that would be 200
and your "implementation" will dictate how to recognise/handle this (e.g. JSON block with a { "booking","failed" }
)
You only initialize the first N positions to the values in braces and all others are initialized to 0. In this case, N is the number of arguments you passed to the initialization list, i.e.,
float arr1[10] = { }; // all elements are 0
float arr2[10] = { 0 }; // all elements are 0
float arr3[10] = { 1 }; // first element is 1, all others are 0
float arr4[10] = { 1, 2 }; // first element is 1, second is 2, all others are 0
Since this question was asked/last answered, support for non string key types for maps for json Marshal/UnMarshal has been added through the use of TextMarshaler and TextUnmarshaler interfaces here. You could just implement these interfaces for your key types and then json.Marshal
would work as expected.
package main
import (
"encoding/json"
"fmt"
"strconv"
)
// Num wraps the int value so that we can implement the TextMarshaler and TextUnmarshaler
type Num int
func (n *Num) UnmarshalText(text []byte) error {
i, err := strconv.Atoi(string(text))
if err != nil {
return err
}
*n = Num(i)
return nil
}
func (n Num) MarshalText() (text []byte, err error) {
return []byte(strconv.Itoa(int(n))), nil
}
type Foo struct {
Number Num `json:"number"`
Title string `json:"title"`
}
func main() {
datas := make(map[Num]Foo)
for i := 0; i < 10; i++ {
datas[Num(i)] = Foo{Number: 1, Title: "test"}
}
jsonString, err := json.Marshal(datas)
if err != nil {
panic(err)
}
fmt.Println(datas)
fmt.Println(jsonString)
m := make(map[Num]Foo)
err = json.Unmarshal(jsonString, &m)
if err != nil {
panic(err)
}
fmt.Println(m)
}
Output:
map[1:{1 test} 2:{1 test} 4:{1 test} 7:{1 test} 8:{1 test} 9:{1 test} 0:{1 test} 3:{1 test} 5:{1 test} 6:{1 test}]
[123 34 48 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 49 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 50 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 51 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 52 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 53 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 54 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 55 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 56 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 44 34 57 34 58 123 34 110 117 109 98 101 114 34 58 34 49 34 44 34 116 105 116 108 101 34 58 34 116 101 115 116 34 125 125]
map[4:{1 test} 5:{1 test} 6:{1 test} 7:{1 test} 0:{1 test} 2:{1 test} 3:{1 test} 1:{1 test} 8:{1 test} 9:{1 test}]
For new Qt users this is a little more confusing than it seems if you are using QT Designer and .ui
files.
Initially I tried to use ui->setWindowTitle
, but that doesn't exist. ui
is not a QDialog
or a QMainWindow
.
The owner of the ui
is the QDialog
or QMainWindow
, the .ui
just describes how to lay it out. In that case, you would use:
this->setWindowTitle("New Title");
I hope this helps someone else.
set a WebViewClient
to your WebView, start your progress dialog on you onCreate()
method an dismiss it when the page has finished loading in onPageFinished(WebView view, String url)
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class Main extends Activity {
private WebView webview;
private static final String TAG = "Main";
private ProgressDialog progressBar;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
this.webview = (WebView)findViewById(R.id.webview);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
progressBar = ProgressDialog.show(Main.this, "WebView Example", "Loading...");
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.i(TAG, "Processing webview url click...");
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "Finished loading URL: " +url);
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.e(TAG, "Error: " + description);
Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
alertDialog.setTitle("Error");
alertDialog.setMessage(description);
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
alertDialog.show();
}
});
webview.loadUrl("http://www.google.com");
}
}
your main.xml layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<WebView android:id="@string/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
</LinearLayout>
Best and simple approach with css3
#subtitle{
/*for webkit browsers*/
display:-webkit-box;
-webkit-box-align:center;
-webkit-box-pack: center;
width:100%;
}
#subleft,#subright{
width:50%;
}
String input = EditTextinput.getText().toString();
input = input.replace(" ", "");
Sometimes you would want to remove only the spaces at the beginning or end of the String (not the ones in the middle). If that's the case you can use trim
:
input = input.trim();
If you need to compare only day of month value than you can use the following code:
if yourdate.day == datetime.today().day:
# do something
If you need to check that the difference between two dates is acceptable then you can use timedelta:
if (datetime.today() - yourdate).days == 0:
#do something
And if you want to compare date part only than you can simply use:
from datetime import datetime, date
if yourdatetime.date() < datetime.today().date()
# do something
Note that timedelta has the following format:
datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, weeks]]]]]]])
So you are able to check diff in days, seconds, msec, minutes and so on depending on what you really need:
from datetime import datetime
if (datetime.today() - yourdate).days == 0:
#do something
In your case when you need to check that two dates are exactly the same you can use timedelta(0):
from datetime import datetime, timedelta
if (datetime.today() - yourdate) == timedelta(0):
#do something
Minimal runnable example
For this to make sense, you have to understand the basics of paging: How does x86 paging work? and in particular that the OS can allocate virtual memory via page tables / its internal memory book keeping (VSZ virtual memory) before it actually has a backing storage on RAM or disk (RSS resident memory).
Now to observe this in action, let's create a program that:
mmap
main.c
#define _GNU_SOURCE
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
typedef struct {
unsigned long size,resident,share,text,lib,data,dt;
} ProcStatm;
/* https://stackoverflow.com/questions/1558402/memory-usage-of-current-process-in-c/7212248#7212248 */
void ProcStat_init(ProcStatm *result) {
const char* statm_path = "/proc/self/statm";
FILE *f = fopen(statm_path, "r");
if(!f) {
perror(statm_path);
abort();
}
if(7 != fscanf(
f,
"%lu %lu %lu %lu %lu %lu %lu",
&(result->size),
&(result->resident),
&(result->share),
&(result->text),
&(result->lib),
&(result->data),
&(result->dt)
)) {
perror(statm_path);
abort();
}
fclose(f);
}
int main(int argc, char **argv) {
ProcStatm proc_statm;
char *base, *p;
char system_cmd[1024];
long page_size;
size_t i, nbytes, print_interval, bytes_since_last_print;
int snprintf_return;
/* Decide how many ints to allocate. */
if (argc < 2) {
nbytes = 0x10000;
} else {
nbytes = strtoull(argv[1], NULL, 0);
}
if (argc < 3) {
print_interval = 0x1000;
} else {
print_interval = strtoull(argv[2], NULL, 0);
}
page_size = sysconf(_SC_PAGESIZE);
/* Allocate the memory. */
base = mmap(
NULL,
nbytes,
PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS,
-1,
0
);
if (base == MAP_FAILED) {
perror("mmap");
exit(EXIT_FAILURE);
}
/* Write to all the allocated pages. */
i = 0;
p = base;
bytes_since_last_print = 0;
/* Produce the ps command that lists only our VSZ and RSS. */
snprintf_return = snprintf(
system_cmd,
sizeof(system_cmd),
"ps -o pid,vsz,rss | awk '{if (NR == 1 || $1 == \"%ju\") print}'",
(uintmax_t)getpid()
);
assert(snprintf_return >= 0);
assert((size_t)snprintf_return < sizeof(system_cmd));
bytes_since_last_print = print_interval;
do {
/* Modify a byte in the page. */
*p = i;
p += page_size;
bytes_since_last_print += page_size;
/* Print process memory usage every print_interval bytes.
* We count memory using a few techniques from:
* https://stackoverflow.com/questions/1558402/memory-usage-of-current-process-in-c */
if (bytes_since_last_print > print_interval) {
bytes_since_last_print -= print_interval;
printf("extra_memory_committed %lu KiB\n", (i * page_size) / 1024);
ProcStat_init(&proc_statm);
/* Check /proc/self/statm */
printf(
"/proc/self/statm size resident %lu %lu KiB\n",
(proc_statm.size * page_size) / 1024,
(proc_statm.resident * page_size) / 1024
);
/* Check ps. */
puts(system_cmd);
system(system_cmd);
puts("");
}
i++;
} while (p < base + nbytes);
/* Cleanup. */
munmap(base, nbytes);
return EXIT_SUCCESS;
}
Compile and run:
gcc -ggdb3 -O0 -std=c99 -Wall -Wextra -pedantic -o main.out main.c
echo 1 | sudo tee /proc/sys/vm/overcommit_memory
sudo dmesg -c
./main.out 0x1000000000 0x200000000
echo $?
sudo dmesg
where:
echo 1 | sudo tee /proc/sys/vm/overcommit_memory
: required for Linux to allow us to make a mmap call larger than physical RAM: maximum memory which malloc can allocateProgram output:
extra_memory_committed 0 KiB
/proc/self/statm size resident 67111332 768 KiB
ps -o pid,vsz,rss | awk '{if (NR == 1 || $1 == "29827") print}'
PID VSZ RSS
29827 67111332 1648
extra_memory_committed 8388608 KiB
/proc/self/statm size resident 67111332 8390244 KiB
ps -o pid,vsz,rss | awk '{if (NR == 1 || $1 == "29827") print}'
PID VSZ RSS
29827 67111332 8390256
extra_memory_committed 16777216 KiB
/proc/self/statm size resident 67111332 16778852 KiB
ps -o pid,vsz,rss | awk '{if (NR == 1 || $1 == "29827") print}'
PID VSZ RSS
29827 67111332 16778864
extra_memory_committed 25165824 KiB
/proc/self/statm size resident 67111332 25167460 KiB
ps -o pid,vsz,rss | awk '{if (NR == 1 || $1 == "29827") print}'
PID VSZ RSS
29827 67111332 25167472
Killed
Exit status:
137
which by the 128 + signal number rule means we got signal number 9
, which man 7 signal
says is SIGKILL, which is sent by the Linux out-of-memory killer.
Output interpretation:
printf '0x%X\n' 0x40009A4 KiB ~= 64GiB
(ps
values are in KiB) after the mmap.extra_memory_committed 0
, which means we haven't yet touched any pages. RSS is a small 1648 KiB
which has been allocated for normal program startup like text area, globals, etc.8388608 KiB == 8GiB
worth of pages. As a result, RSS increased by exactly 8GIB to 8390256 KiB == 8388608 KiB + 1648 KiB
See also: https://unix.stackexchange.com/questions/35129/need-explanation-on-resident-set-size-virtual-size
OOM killer logs
Our dmesg
commands have shown the OOM killer logs.
An exact interpretation of those has been asked at:
The very first line of the log was:
[ 7283.479087] mongod invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
So we see that interestingly it was the MongoDB daemon that always runs in my laptop on the background that first triggered the OOM killer, presumably when the poor thing was trying to allocate some memory.
However, the OOM killer does not necessarily kill the one who awoke it.
After the invocation, the kernel prints a table or processes including the oom_score
:
[ 7283.479292] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 7283.479303] [ 496] 0 496 16126 6 172032 484 0 systemd-journal
[ 7283.479306] [ 505] 0 505 1309 0 45056 52 0 blkmapd
[ 7283.479309] [ 513] 0 513 19757 0 57344 55 0 lvmetad
[ 7283.479312] [ 516] 0 516 4681 1 61440 444 -1000 systemd-udevd
and further ahead we see that our own little main.out
actually got killed on the previous invocation:
[ 7283.479871] Out of memory: Kill process 15665 (main.out) score 865 or sacrifice child
[ 7283.479879] Killed process 15665 (main.out) total-vm:67111332kB, anon-rss:92kB, file-rss:4kB, shmem-rss:30080832kB
[ 7283.479951] oom_reaper: reaped process 15665 (main.out), now anon-rss:0kB, file-rss:0kB, shmem-rss:30080832kB
This log mentions the score 865
which that process had, presumably the highest (worst) OOM killer score as mentioned at: https://unix.stackexchange.com/questions/153585/how-does-the-oom-killer-decide-which-process-to-kill-first
Also interestingly, everything apparently happened so fast that before the freed memory was accounted, the oom
was awoken again by the DeadlineMonitor
process:
[ 7283.481043] DeadlineMonitor invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
and this time that killed some Chromium process, which is usually my computers normal memory hog:
[ 7283.481773] Out of memory: Kill process 11786 (chromium-browse) score 306 or sacrifice child
[ 7283.481833] Killed process 11786 (chromium-browse) total-vm:1813576kB, anon-rss:208804kB, file-rss:0kB, shmem-rss:8380kB
[ 7283.497847] oom_reaper: reaped process 11786 (chromium-browse), now anon-rss:0kB, file-rss:0kB, shmem-rss:8044kB
Tested in Ubuntu 19.04, Linux kernel 5.0.0.
Hey please add code in your project,it is easy and i think will solve your problem.
int count = 10;
private void timer1_Tick(object sender, EventArgs e)
{
count--;
if (count != 0 && count > 0)
{
label1.Text = count / 60 + ":" + ((count % 60) >= 10 ? (count % 60).ToString() : "0" + (count % 60));
}
else
{
label1.Text = "game over";
}
}
private void Form1_Load(object sender, EventArgs e)
{
timer1 = new System.Windows.Forms.Timer();
timer1.Interval = 1;
timer1.Tick += new EventHandler(timer1_Tick);
}
Another really silly cause of this is having the selector defined in the interface(.h) but not in the implementation(.m) (p.e. typo)
You should remove "style" attribute instead of "display" property :
$("span").removeAttr("style");
The layouts in /res/layout are applied to both portrait and landscape, unless you specify otherwise. Letās assume we have /res/layout/home.xml for our homepage and we want it to look differently in the 2 layout types.
As mentioned in a different post Read .txt file from workspace groovy script in Jenkins I was struggling to make it work for the pom modules for a file in the workspace, in the Extended Choice Parameter. Here is my solution with the printlns:
import groovy.util.XmlSlurper
import java.util.Map
import jenkins.*
import jenkins.model.*
import hudson.*
import hudson.model.*
try{
//get Jenkins instance
def jenkins = Jenkins.instance
//get job Item
def item = jenkins.getItemByFullName("The_JOB_NAME")
println item
// get workspacePath for the job Item
def workspacePath = jenkins.getWorkspaceFor (item)
println workspacePath
def file = new File(workspacePath.toString()+"\\pom.xml")
def pomFile = new XmlSlurper().parse(file)
def pomModules = pomFile.modules.children().join(",")
return pomModules
} catch (Exception ex){
println ex.message
}
you could try this:
I have these two columns (column "A" and column "B"). I want to color them when the values between cells in the same row mismatch.
Follow these steps:
Select the elements in column "A" (excluding A1);
Click on "Conditional formatting -> New Rule -> Use a formula to determine which cells to format";
Insert the following formula: =IF(A2<>B2;1;0);
Select the format options and click "OK";
Select the elements in column "B" (excluding B1) and repeat the steps from 2 to 4.
I used your own pivot as a nested query and came to this result:
SELECT
[sub].[chardate],
SUM(ISNULL([Australia], 0)) AS [Transactions Australia],
SUM(CASE WHEN [Australia] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Australia],
SUM(ISNULL([Austria], 0)) AS [Transactions Austria],
SUM(CASE WHEN [Austria] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Austria]
FROM
(
select *
from mytransactions
pivot (sum (totalcount) for country in ([Australia], [Austria])) as pvt
) AS [sub]
GROUP BY
[sub].[chardate],
[sub].[numericmonth]
ORDER BY
[sub].[numericmonth] ASC
For all python users:
Simply go to your destination folder in the terminal.
cd projectFoder
then start HTTP server For Python3+:
python -m http.server 8000
Serving HTTP on :: port 8000 (http://[::]:8000/) ...
go to your link: http://0.0.0.0:8000/
Enjoy :)
The files need to be in a JPEG or PNG format of 24 bits, in a 2:1 ratio if it is a portrait and a 16:9 ratio for landscapes. Be careful that if you go for different sizes: the maximum size should not be more than twice bigger than the minimum size.
Using like might take longer time so use full_text_search:
SELECT * FROM items WHERE MATCH(items.xml) AGAINST ('your_search_word')
There's a few things that could get in the way - is your data clean?
It could be that you have spaces at the end of the first name field, which then means you have two spaces between the firstname and lastname when you concat them? Using trim(first_name)/trim(last_name) will fix this - although the real fix is to update your data.
You could also this to match where two words both occur but not necessarily together (assuming you are in php - which the $search_term variable suggests you are)
$whereclauses=array();
$terms = explode(' ', $search_term);
foreach ($terms as $term) {
$term = mysql_real_escape_string($term);
$whereclauses[] = "CONCAT(first_name, ' ', last_name) LIKE '%$term%'";
}
$sql = "select * from table where";
$sql .= implode(' and ', $whereclauses);
I found when I accessed here https://console.cloud.google.com/home/dashboard
Then I got redirected to my active project, which was something like https://console.cloud.google.com/home/dashboard?project={THE_ID_OF_YOUR_PROJECT}
Then right bellow the project info, there was this Manage Options (note: I'm using Portuguese language here "Gerenciar as configuraƧƵes do projeto" means "Manage project settings")
Then, finally, the delete option ("Excluir Projeto" means Delete Project)
Yep, it was hard
By default, a grid item cannot be smaller than the size of its content.
Grid items have an initial size of min-width: auto
and min-height: auto
.
You can override this behavior by setting grid items to min-width: 0
, min-height: 0
or overflow
with any value other than visible
.
From the spec:
6.6. Automatic Minimum Size of Grid Items
To provide a more reasonable default minimum size for grid items, this specification defines that the
auto
value ofmin-width
/min-height
also applies an automatic minimum size in the specified axis to grid items whoseoverflow
isvisible
. (The effect is analogous to the automatic minimum size imposed on flex items.)
Here's a more detailed explanation covering flex items, but it applies to grid items, as well:
This post also covers potential problems with nested containers and known rendering differences among major browsers.
To fix your layout, make these adjustments to your code:
.month-grid {
display: grid;
grid-template: repeat(6, 1fr) / repeat(7, 1fr);
background: #fff;
grid-gap: 2px;
min-height: 0; /* NEW */
min-width: 0; /* NEW; needed for Firefox */
}
.day-item {
padding: 10px;
background: #DFE7E7;
overflow: hidden; /* NEW */
min-width: 0; /* NEW; needed for Firefox */
}
1fr
vs minmax(0, 1fr)
The solution above operates at the grid item level. For a container level solution, see this post:
that's easy to solve, git is saying that you have the same files in both branches, therefore you have to delete the specific files from master branch and then you will be able to merge:
git merge "your branch"
I hope it works for you, I just solved my error. my error was:
error: The following untracked working tree files would be overwritten by merge:
.vs/slnx.sqlite
Please move or remove them before you merge.
Aborting
Now it is working!
In my case .vs/slnx.sqlite
was generated by visual studio, I needed to close it before delete it.
Here is a C# implementation of the *nix cksum command line utility for windows https://cksum.codeplex.com/
I use structs when I need to create POD type or functor.
Since neither of the above worked for me, here's what did: android:scrollbarDefaultDelayBeforeFade="500000"
The html5 spec expressly rejects new lines in the place holder field. Versions of Webkit /will/ insert new lines when presented with line feeds in the placeholder, however this is incorrect behaviour and should not be relied upon.
I guess paragraphs aren't brief enough for w3 ;)
we can use java 8 to do a null-friendly comparasion between object. supposed i hava a Boy class with 2 fields: String name and Integer age and i want to first compare names and then ages if both are equal.
static void test2() {
List<Boy> list = new ArrayList<>();
list.add(new Boy("Peter", null));
list.add(new Boy("Tom", 24));
list.add(new Boy("Peter", 20));
list.add(new Boy("Peter", 23));
list.add(new Boy("Peter", 18));
list.add(new Boy(null, 19));
list.add(new Boy(null, 12));
list.add(new Boy(null, 24));
list.add(new Boy("Peter", null));
list.add(new Boy(null, 21));
list.add(new Boy("John", 30));
List<Boy> list2 = list.stream()
.sorted(comparing(Boy::getName,
nullsLast(naturalOrder()))
.thenComparing(Boy::getAge,
nullsLast(naturalOrder())))
.collect(toList());
list2.stream().forEach(System.out::println);
}
private static class Boy {
private String name;
private Integer age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Boy(String name, Integer age) {
this.name = name;
this.age = age;
}
public String toString() {
return "name: " + name + " age: " + age;
}
}
and the result:
name: John age: 30
name: Peter age: 18
name: Peter age: 20
name: Peter age: 23
name: Peter age: null
name: Peter age: null
name: Tom age: 24
name: null age: 12
name: null age: 19
name: null age: 21
name: null age: 24
I think the textbox you are trying to access is not yet loaded onto the page at the time your javascript is being executed.
ie., For the Javascript to be able to read the textbox from the DOM of the page, the textbox must be available as an element. If the javascript is getting called before the textbox is written onto the page, the textbox will not be visible and so NULL is returned.
Well, you can't add styling using pseudo selectors like :hover
, :after
, :nth-child
, or anything like that using jQuery.
If you want to add a CSS rule like that you have to create a <style>
element and add that :hover
rule to it just like you would in CSS. Then you would have to add that <style>
element to the page.
Using the .hover
function seems to be more appropriate if you can't just add the css to a stylesheet, but if you insist you can do:
$('head').append('<style>.myclass:hover div {background-color : red;}</style>')
If you want to read more on adding CSS with javascript you can check out one of David Walsh's Blog posts.
In Swift 4.2 and Xcode 10.1
let myView = UIView()
myView.frame = CGRect(x: 200, y: 200, width: 200, height: 200)
myView.myViewCorners()
//myView.myViewCorners(width: myView.frame.width)//Pass View width
view.addSubview(myView)
extension UIView {
//If you want only round corners
func myViewCorners() {
layer.cornerRadius = 10
layer.borderWidth = 1.0
layer.borderColor = UIColor.red.cgColor
layer.masksToBounds = true
}
//If you want complete round shape, enable above comment line
func myViewCorners(width:CGFloat) {
layer.cornerRadius = width/2
layer.borderWidth = 1.0
layer.borderColor = UIColor.red.cgColor
layer.masksToBounds = true
}
}
There are three ways to switch to the frame
1)Can use id
2)Can use name of the frame
3)Can use WebElement of the frame
2->driver.switchTo().frame("name of the frame");
You should write a generic transformation Service! Use generics to keep it type free (so you can convert every object to key=>value and back).
What field should be the key? Get that field from the bean and append any other non transient value in a value map.
The way back is pretty easy. Read key(x) and write at first the key and then every list entry back to a new object.
You can get the property names of a bean with the apache commons beanutils!
Follow the link below and configure it to what you need. Daterangepicker does it for you, very easily. :)
It depends on how you format the Guid:
Guid.NewGuid().ToString()
=> 36 characters (Hyphenated)
outputs: 12345678-1234-1234-1234-123456789abc
Guid.NewGuid().ToString("D")
=> 36 characters (Hyphenated, same as ToString()
)
outputs: 12345678-1234-1234-1234-123456789abc
Guid.NewGuid().ToString("N")
=> 32 characters (Digits only)
outputs: 12345678123412341234123456789abc
Guid.NewGuid().ToString("B")
=> 38 characters (Braces)
outputs: {12345678-1234-1234-1234-123456789abc}
Guid.NewGuid().ToString("P")
=> 38 characters (Parentheses)
outputs: (12345678-1234-1234-1234-123456789abc)
Guid.NewGuid().ToString("X")
=> 68 characters (Hexadecimal)
outputs: {0x12345678,0x1234,0x1234,{0x12,0x34,0x12,0x34,0x56,0x78,0x9a,0xbc}}
try:
df['c2'] = df['c1'].apply(lambda x: 10 if x == 'Value' else x)
Indeed, you'll get rid of those warnings by disabling Swift 3 @objc Inference. However, subtle issues may pop up. For example, KVO will stop working. This code worked perfectly under Swift 3:
for (key, value) in jsonDict {
if self.value(forKey: key) != nil {
self.setValue(value, forKey: key)
}
}
After migrating to Swift 4, and setting "Swift 3 @objc Inference" to default, certain features of my project stopped working. It took me some debugging and research to find a solution for this. According to my best knowledge, here are the options:
Re-enabling @objc inference leaves you with the warnings, but it's the quickest solution. Note that it's only available for projects migrated from an earlier Swift version. The other two options are more tedious and require some code-digging and extensive testing.
See also https://github.com/apple/swift-evolution/blob/master/proposals/0160-objc-inference.md
I don't know what you want to do, but this is how I actually translated your example code....
package test;
/**
* @author The Elite Gentleman
*
*/
public enum Strings {
STRING_ONE("ONE"),
STRING_TWO("TWO")
;
private final String text;
/**
* @param text
*/
Strings(final String text) {
this.text = text;
}
/* (non-Javadoc)
* @see java.lang.Enum#toString()
*/
@Override
public String toString() {
return text;
}
}
Alternatively, you can create a getter method for text
.
You can now do Strings.STRING_ONE.toString();
ObservableCollection<FacebookUser_WallFeed> result = new ObservableCollection<FacebookUser_WallFeed>(FacebookHelper.facebookWallFeeds);
I came here just wanting a simple answer on how to round a number. This is a supplemental answer to provide that.
The most common case is to use Math.round()
.
Math.round(3.7) // 4
Numbers are rounded to the nearest whole number. A .5
value is rounded up. If you need different rounding behavior than that, you can use one of the other Math functions. See the comparison below.
As stated above, this rounds to the nearest whole number. .5
decimals round up. This method returns an int
.
Math.round(3.0); // 3
Math.round(3.1); // 3
Math.round(3.5); // 4
Math.round(3.9); // 4
Math.round(-3.0); // -3
Math.round(-3.1); // -3
Math.round(-3.5); // -3 *** careful here ***
Math.round(-3.9); // -4
Any decimal value is rounded up to the next integer. It goes to the ceiling. This method returns a double
.
Math.ceil(3.0); // 3.0
Math.ceil(3.1); // 4.0
Math.ceil(3.5); // 4.0
Math.ceil(3.9); // 4.0
Math.ceil(-3.0); // -3.0
Math.ceil(-3.1); // -3.0
Math.ceil(-3.5); // -3.0
Math.ceil(-3.9); // -3.0
Any decimal value is rounded down to the next integer. This method returns a double
.
Math.floor(3.0); // 3.0
Math.floor(3.1); // 3.0
Math.floor(3.5); // 3.0
Math.floor(3.9); // 3.0
Math.floor(-3.0); // -3.0
Math.floor(-3.1); // -4.0
Math.floor(-3.5); // -4.0
Math.floor(-3.9); // -4.0
This is similar to round in that decimal values round to the closest integer. However, unlike round
, .5
values round to the even integer. This method returns a double
.
Math.rint(3.0); // 3.0
Math.rint(3.1); // 3.0
Math.rint(3.5); // 4.0 ***
Math.rint(3.9); // 4.0
Math.rint(4.5); // 4.0 ***
Math.rint(5.5); // 6.0 ***
Math.rint(-3.0); // -3.0
Math.rint(-3.1); // -3.0
Math.rint(-3.5); // -4.0 ***
Math.rint(-3.9); // -4.0
Math.rint(-4.5); // -4.0 ***
Math.rint(-5.5); // -6.0 ***
add simply way
<div id='cssmenu'>
<ul>
<li class=''><a href='1.html'><span>1</span></a></li>
<li class=''><a href='2.html'><span>2</span></a></li>
<li class='' style="float:right;"><a href='3.html'><span>3</span></a></li>
</ul>
</div>
$("document").ready(function(){
$(function() {
$('.cssmenu a[href="' + location.pathname.split("/")[location.pathname.split("/").length-1] + '"]').parent().addClass('active');
});
});
If you guys are facing "Permission Denial: starting Intent..." error or if the app is getting crash without any reason during launching the app - Then use this single line code in Manifest
android:exported="true"
Please be careful with finish(); , if you missed out it the app getting frozen. if its mentioned the app would be a smooth launcher.
finish();
The other solution only works for two activities that are in the same application. In my case, application B doesn't know class com.example.MyExampleActivity.class
in the code, so compile will fail.
I searched on the web and found something like this below, and it works well.
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.example", "com.example.MyExampleActivity"));
startActivity(intent);
You can also use the setClassName method:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.hotfoot.rapid.adani.wheeler.android", "com.hotfoot.rapid.adani.wheeler.android.view.activities.MainActivity");
startActivity(intent);
finish();
You can also pass the values from one app to another app :
Intent launchIntent = getApplicationContext().getPackageManager().getLaunchIntentForPackage("com.hotfoot.rapid.adani.wheeler.android.LoginActivity");
if (launchIntent != null) {
launchIntent.putExtra("AppID", "MY-CHILD-APP1");
launchIntent.putExtra("UserID", "MY-APP");
launchIntent.putExtra("Password", "MY-PASSWORD");
startActivity(launchIntent);
finish();
} else {
Toast.makeText(getApplicationContext(), " launch Intent not available", Toast.LENGTH_SHORT).show();
}
You're trying to pass file objects as filenames. Try using
infile = '110331_HS1A_1_rtTA.result'
outfile = '2.txt'
at the top of your code.
(Not only does the doubled usage of open()
cause that problem with trying to open the file again, it also means that infile
and outfile
are never closed during the course of execution, though they'll probably get closed once the program ends.)
You can generate NPM dependency trees without the need of installing a dependency by using the command
npm list
This will generate a dependency tree for the project at the current directory and print it to the console.
You can get the dependency tree of a specific dependency like so:
npm list [dependency]
You can also set the maximum depth level by doing
npm list --depth=[depth]
Note that you can only view the dependency tree of a dependency that you have installed either globally, or locally to the NPM project.
Through the following steps you can do it .
In Eclipse window , Right Click on your Project from Package Explorer. 1. Select Properties, 2. Select Android from Properties, 3. Check "Is Library" check box, 4. If it is checked then Unchecked "Is Library" check box. 5. Click Apply and than OK.
You can use the dir step, example:
dir("folder") {
sh "pwd"
}
The folder
can be relative or absolute path.
There is another example which I would like to share with you
:D
http://www.sommarskog.se/dynamic_sql.html#cursor0
It is a Generic Type Parameter.
A generic type parameter allows you to specify an arbitrary type T to a method at compile-time, without specifying a concrete type in the method or class declaration.
For example:
public T[] Reverse<T>(T[] array)
{
var result = new T[array.Length];
int j=0;
for(int i=array.Length - 1; i>= 0; i--)
{
result[j] = array[i];
j++;
}
return result;
}
reverses the elements in an array. The key point here is that the array elements can be of any type, and the function will still work. You specify the type in the method call; type safety is still guaranteed.
So, to reverse an array of strings:
string[] array = new string[] { "1", "2", "3", "4", "5" };
var result = reverse(array);
Will produce a string array in result
of { "5", "4", "3", "2", "1" }
This has the same effect as if you had called an ordinary (non-generic) method that looks like this:
public string[] Reverse(string[] array)
{
var result = new string[array.Length];
int j=0;
for(int i=array.Length - 1; i >= 0; i--)
{
result[j] = array[i];
j++;
}
return result;
}
The compiler sees that array
contains strings, so it returns an array of strings. Type string
is substituted for the T
type parameter.
Generic type parameters can also be used to create generic classes. In the example you gave of a SampleCollection<T>
, the T
is a placeholder for an arbitrary type; it means that SampleCollection
can represent a collection of objects, the type of which you specify when you create the collection.
So:
var collection = new SampleCollection<string>();
creates a collection that can hold strings. The Reverse
method illustrated above, in a somewhat different form, can be used to reverse the collection's members.
I am using jQuery to solve this problem. This is the snippet for BS 3.0.0:
$(window).resize(function () {
$('body').css('padding-top', parseInt($('#main-navbar').css("height"))+10);
});
$(window).load(function () {
$('body').css('padding-top', parseInt($('#main-navbar').css("height"))+10);
});
"FirstRow" Is a restriction and therefor it's place in the where
clause not in the select
clause. And it's called rownum
select * from dual where rownum = 1;
On January 7th 2019, GitHub announced free and unlimited private repositories for all GitHub users, paying or not. When creating a new repository, you can simply select the Private option.
If you want to include a zoom level, you can use this format:
https://www.google.com/maps/place/40.7028722+-73.9868281/@40.7028722,-73.9868281,15z
will redirect to this link (per 2017.09.21)
As a note here:
SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext
and SpringBeanAutowiringSupport.processInjectionBasedOnServletContext
DOES NOT work with @Resource
annotation. So, there are difference.
Use psexec -s
The s switch will cause it to run under system account which is the same as running an elevated admin prompt. just used it to enable WinRM remotely.
It's much easier with Swift 4
or Swift 4.2
inside your ViewDidLoad
method, define your button and add it to the navigation bar.
override func viewDidLoad() {
super.viewDidLoad()
let logoutBarButtonItem = UIBarButtonItem(title: "Logout", style: .done, target: self, action: #selector(logoutUser))
self.navigationItem.rightBarButtonItem = logoutBarButtonItem
}
then you need to define the function that you mentioned inside action parameter as below
@objc func logoutUser(){
print("clicked")
}
You need to add the @objc
prefix as it's still making use of the legacy stuff (Objective C).
node-byline uses streams, so i would prefer that one for your huge files.
for your date-conversions i would use moment.js.
for maximising your throughput you could think about using a software-cluster. there are some nice-modules which wrap the node-native cluster-module quite well. i like cluster-master from isaacs. e.g. you could create a cluster of x workers which all compute a file.
for benchmarking splits vs regexes use benchmark.js. i havent tested it until now. benchmark.js is available as a node-module
try
{
string AppPath = "\\\\spri11U1118\\SampleBatch\\Bin\\";
string strFilePath = AppPath + "ABCED120D_XXX.bat";
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName = strFilePath;
string pwd = "s44erver";
proc.StartInfo.Domain = "abcd";
proc.StartInfo.UserName = "sysfaomyulm";
System.Security.SecureString secret = new System.Security.SecureString();
foreach (char c in pwd)
secret.AppendChar(c);
proc.StartInfo.Password = secret;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.WorkingDirectory = "psexec \\\\spri11U1118\\SampleBatch\\Bin ";
proc.Start();
while (!proc.HasExited)
{
proc.Refresh();
// Thread.Sleep(1000);
}
proc.Close();
}
catch (Exception ex)
{
throw ex;
}
This should work:
$("#datepicker").datepicker("setDate", new Date());
And for autoclose (fiddle):
$('#datepicker').datepicker({
"setDate": new Date(),
"autoclose": true
});
Add this to an htaccess file (and see edit notes added below):
<IfModule mod_php5.c>
php_value post_max_size 200M
php_value upload_max_filesize 200M
php_value memory_limit 300M
php_value max_execution_time 259200
php_value max_input_time 259200
php_value session.gc_maxlifetime 1200
</IfModule>
Additional resources and information:
2021 EDIT:
As PHP and Apache evolve and grow, I think it is important for me to take a moment to mention a few things to consider and possible "gotchas" to consider:
<IfModule
is loaded.mod_php5.c
in the first line. If you are using PHP 7, you would replace that with mod_php7.c
.php.ini
config file(s). This method is usually only useful in the event your hosting provider does not give you access to change those files. In circumstances where you can edit the PHP configuration, it is recommended that you apply these settings there.A SimpleDateFormat
, as its name indicates, formats Date
s. Not a Calendar
. So, if you want to format a GregorianCalendar
using a SimpleDateFormat
, you must convert the Calendar
to a Date
first:
dateFormat.format(calendar.getTime());
And what you see printed is the toString()
representation of the calendar. It's intended usage is debugging. It's not intended to be used to display a date in a GUI. For that, use a (Simple
)DateFormat
.
Finally, to convert from a String
to a Date
, you should also use a (Simple
)DateFormat
(its parse()
method), rather than splitting the String
as you're doing. This will give you a Date
object, and you can create a Calendar
from the Date
by instanciating it (Calendar.getInstance()
) and setting its time (calendar.setTime()
).
My advice would be: Googling is not the solution here. Reading the API documentation is what you need to do.
Call list() on the GroupBy object
print(list(df.groupby('A')))
gives you:
[('one', A B
0 one 0
1 one 1
5 one 5), ('three', A B
3 three 3
4 three 4), ('two', A B
2 two 2)]
Steps:
Implements your object class to serializable
public class Question implements Serializable`
Put this in your Source Activity
ArrayList<Question> mQuestionList = new ArrayList<Question>;
mQuestionsList = QuestionBank.getQuestions();
mQuestionList.add(new Question(ops1, choices1));
Intent intent = new Intent(SourceActivity.this, TargetActivity.class);
intent.putExtra("QuestionListExtra", mQuestionList);
Put this in your Target Activity
ArrayList<Question> questions = new ArrayList<Question>();
questions = (ArrayList<Questions>) getIntent().getSerializableExtra("QuestionListExtra");
Found it here: http://awesomesql.wordpress.com/2010/02/08/script-to-drop-all-connections-to-a-database/
DECLARE @dbname NVARCHAR(128)
SET @dbname = 'DB name here'
-- db to drop connections
DECLARE @processid INT
SELECT @processid = MIN(spid)
FROM master.dbo.sysprocesses
WHERE dbid = DB_ID(@dbname)
WHILE @processid IS NOT NULL
BEGIN
EXEC ('KILL ' + @processid)
SELECT @processid = MIN(spid)
FROM master.dbo.sysprocesses
WHERE dbid = DB_ID(@dbname)
END
Just did a quick google search and found that
System.getProperty("user.dir");
returns the current working directory as String. So to get a File out of this, just use
File projectDir = new File(System.getProperty("user.dir"));
The error means the OS of the listening socket recognized the inbound connection request but chose to intentionally reject it.
Assuming an intermediate firewall is not getting in the way, there are only two reasons (that I know of) for the OS to reject an inbound connection request. One reason has already been mentioned several times - the listening port being connected to is not open.
There is another reason that has not been mentioned yet - the listening port is actually open and actively being used, but its backlog of queued inbound connection requests has reached its maximum so there is no room available for the inbound connection request to be queued at that moment. The server code has not called accept() enough times yet to finish clearing out available slots for new queue items.
Wait a moment or so and try the connection again. Unfortunately, there is no way to differentiate between "the port is not open at all" and "the port is open but too busy right now". They both use the same generic error code.
To understand queue method, you have to understand how jQuery does animation. If you write multiple animate method calls one after the other, jQuery creates an 'internal' queue and adds these method calls to it. Then it runs those animate calls one by one.
Consider following code.
function nonStopAnimation()
{
//These multiple animate calls are queued to run one after
//the other by jQuery.
//This is the reason that nonStopAnimation method will return immeidately
//after queuing these calls.
$('#box').animate({ left: '+=500'}, 4000);
$('#box').animate({ top: '+=500'}, 4000);
$('#box').animate({ left: '-=500'}, 4000);
//By calling the same function at the end of last animation, we can
//create non stop animation.
$('#box').animate({ top: '-=500'}, 4000 , nonStopAnimation);
}
The 'queue'/'dequeue' method gives you control over this 'animation queue'.
By default the animation queue is named 'fx'. I have created a sample page here which has various examples which will illustrate how the queue method could be used.
http://jsbin.com/zoluge/1/edit?html,output
Code for above sample page:
$(document).ready(function() {
$('#nonStopAnimation').click(nonStopAnimation);
$('#stopAnimationQueue').click(function() {
//By default all animation for particular 'selector'
//are queued in queue named 'fx'.
//By clearning that queue, you can stop the animation.
$('#box').queue('fx', []);
});
$('#addAnimation').click(function() {
$('#box').queue(function() {
$(this).animate({ height : '-=25'}, 2000);
//De-queue our newly queued function so that queues
//can keep running.
$(this).dequeue();
});
});
$('#stopAnimation').click(function() {
$('#box').stop();
});
setInterval(function() {
$('#currentQueueLength').html(
'Current Animation Queue Length for #box ' +
$('#box').queue('fx').length
);
}, 2000);
});
function nonStopAnimation()
{
//These multiple animate calls are queued to run one after
//the other by jQuery.
$('#box').animate({ left: '+=500'}, 4000);
$('#box').animate({ top: '+=500'}, 4000);
$('#box').animate({ left: '-=500'}, 4000);
$('#box').animate({ top: '-=500'}, 4000, nonStopAnimation);
}
Now you may ask, why should I bother with this queue? Normally, you wont. But if you have a complicated animation sequence which you want to control, then queue/dequeue methods are your friend.
Also see this interesting conversation on jQuery group about creating a complicated animation sequence.
Demo of the animation:
http://www.exfer.net/test/jquery/tabslide/
Let me know if you still have questions.
The basis logic for such behavior is that Generics
follow a mechanism of type erasure. So at run time you have no way if identifying the type of collection
unlike arrays
where there is no such erasure process. So coming back to your question...
So suppose there is a method as given below:
add(List<Animal>){
//You can add List<Dog or List<Cat> and this will compile as per rules of polymorphism
}
Now if java allows caller to add List of type Animal to this method then you might add wrong thing into collection and at run time too it will run due to type erasure. While in case of arrays you will get a run time exception for such scenarios...
Thus in essence this behavior is implemented so that one cannot add wrong thing into collection. Now I believe type erasure exists so as to give compatibility with legacy java without generics....
My suspicion is that it has to do with how server-side controls are identified during processing. Rather than having to check every control at runtime by name to determine whether server-side processing needs to be done, it does a selection on the internal node representation by tag. The compiler checks to make sure that all controls that require server tags have them during the validation step.
Just been struggling with this too on Android, managed to stumble upon Uri.encode(String, String) while specific to android (android.net.Uri) might be useful to some.
static String encode(String s, String allow)
The initialization method easiest to remember is
vec = vector(,10); #the same as "vec = vector(length = 10);"
The values of vec are: "[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE" (logical mode) by default.
But after setting a character value, like
vec[2] = 'abc'
vec becomes: "FALSE" "abc" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE"", which is of the character mode.
Angular 6
You can pass in parameters needed for get call by using params:
this.httpClient.get<any>(url, { params: x });
where x = { property: "123" }.
As for the api function that logs "123":
router.get('/example', (req, res) => {
console.log(req.query.property);
})
This is a short solution to change the request UserAgent on the fly.
Change UserAgent of a request with Chrome
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
driver = webdriver.Chrome(driver_path)
driver.execute_cdp_cmd('Network.setUserAgentOverride', {"userAgent":"python 2.7", "platform":"Windows"})
driver.get('http://amiunique.org')
then return your useragent:
agent = driver.execute_script("return navigator.userAgent")
Some sources
The source code of webdriver.py from SeleniumHQ (https://github.com/SeleniumHQ/selenium/blob/11c25d75bd7ed22e6172d6a2a795a1d195fb0875/py/selenium/webdriver/chrome/webdriver.py) extends its functionalities through the Chrome Devtools Protocol
def execute_cdp_cmd(self, cmd, cmd_args):
"""
Execute Chrome Devtools Protocol command and get returned result
We can use the Chrome Devtools Protocol Viewer to list more extended functionalities (https://chromedevtools.github.io/devtools-protocol/tot/Network#method-setUserAgentOverride) as well as the parameters type to use.
For Expose.class Error i.e
java.util.zip.ZipException: duplicate entry: com/google/gson/annotations/Expose.class
use the below code
configurations {
all*.exclude module: 'gson'
}
If you want to do a redirect, you can either:
ViewBag.Error = "error message";
or
TempData["Error"] = "error message";
Django's built-in authentication works the way you want.
Their login pages include a next
query string which is the page to return to after login.
Look at http://docs.djangoproject.com/en/dev/topics/auth/#django.contrib.auth.decorators.login_required
You failed to specify the exact columns (data) to test for normality. Use this instead
shapiro.test(heisenberg$HWWIchg)
I've built javascript-snippet (which you can add as browser-bookmark) and then activate on any site to monitor & modify the requests. :
For further instructions, review the github page.
The solution is just 3 lines:
@media only screen and (max-width: 479px) {
.nav-tabs > li {
width: 100%;
}
}
..but you have to accept the idea of tabs that wrap to more lines in other dimensions.
Of course you can achieve a horizontal scrolling area with white-space: nowrap
trick but the scrollbars look ugly on desktops so you have to write js code and the whole thing starts becoming no trivial at all!
Here is a function I wrote. It wraps the base::source
function to store a list of sourced files in a global environment list named sourced
. It will only re-source a file if you provide a .force=TRUE
argument to the call to source. Its argument signature is otherwise identical to the real source()
so you don't need to rewrite your scripts to use this.
warning("overriding source with my own function FYI")
source <- function(path, .force=FALSE, ...) {
library(tools)
path <- tryCatch(normalizePath(path), error=function(e) path)
m<-md5sum(path)
go<-TRUE
if (!is.vector(.GlobalEnv$sourced)) {
.GlobalEnv$sourced <- list()
}
if(! is.null(.GlobalEnv$sourced[[path]])) {
if(m == .GlobalEnv$sourced[[path]]) {
message(sprintf("Not re-sourcing %s. Override with:\n source('%s', .force=TRUE)", path, path))
go<-FALSE
}
else {
message(sprintf('re-sourcing %s as it has changed from: %s to: %s', path, .GlobalEnv$sourced[[path]], m))
go<-TRUE
}
}
if(.force) {
go<-TRUE
message(" ...forcing.")
}
if(go) {
message(sprintf("sourcing %s", path))
.GlobalEnv$sourced[path] <- m
base::source(path, ...)
}
}
It's pretty chatty (lots of calls to message()
) so you can take those lines out if you care. Any advice from veteran R users is appreciated; I'm pretty new to R.
Wrong syntax. Here you are:
insert into user_by_category (game_category,customer_id) VALUES ('Goku','12');
or:
insert into user_by_category ("game_category","customer_id") VALUES ('Kakarot','12');
The second one is normally used for case-sensitive column names.
var num1 = "0.1";
document.getElementById('num1').innerHTML = (Math.round(num1 * 100) / 100).toFixed(2);
var num2 = "1.341";
document.getElementById('num2').innerHTML = (Math.round(num2 * 100) / 100).toFixed(2);
var num3 = "1.345";
document.getElementById('num3').innerHTML = (Math.round(num3 * 100) / 100).toFixed(2);
_x000D_
span {
border: 1px solid #000;
margin: 5px;
padding: 5px;
}
_x000D_
<span id="num1"></span>
<span id="num2"></span>
<span id="num3"></span>
_x000D_
I think it is the best answer:
public static double StringToDouble(string toDouble)
{
toDouble = toDouble.Replace(",", "."); //Replace every comma with dot
//Count dots in toDouble, and if there is more than one dot, throw an exception.
//Value such as "123.123.123" can't be converted to double
int dotCount = 0;
foreach (char c in toDouble) if (c == '.') dotCount++; //Increments dotCount for each dot in toDouble
if (dotCount > 1) throw new Exception(); //If in toDouble is more than one dot, it means that toCount is not a double
string left = toDouble.Split('.')[0]; //Everything before the dot
string right = toDouble.Split('.')[1]; //Everything after the dot
int iLeft = int.Parse(left); //Convert strings to ints
int iRight = int.Parse(right);
//We must use Math.Pow() instead of ^
double d = iLeft + (iRight * Math.Pow(10, -(right.Length)));
return d;
}
It means it's searching for a function that needs to be completed.
else if(val == sorted[mid]) return mid;
so, remove the if() part and modify the code or add an else() at the end which returns an int.
If you're using Bash you could also use one of the following commands:
printf '%(%Y%m%d%H%M%S)T' # prints the current time
printf '%(%Y%m%d%H%M%S)T' -1 # same as above
printf '%(%Y%m%d%H%M%S)T' -2 # prints the time the shell was invoked
You can use the Option -v varname
to store the result in $varname
instead of printing it to stdout:
printf -v varname '%(%Y%m%d%H%M%S)T'
While the date command will always be executed in a subshell (i.e. in a separate process) printf is a builtin command and will therefore be faster.
Add the MessageUI.Framework and use the following code
#import <MessageUI/MessageUI.h>
And then:
if ([MFMessageComposeViewController canSendText]) {
MFMessageComposeViewController *messageComposer =
[[MFMessageComposeViewController alloc] init];
NSString *message = @"Your Message here";
[messageComposer setBody:message];
messageComposer.messageComposeDelegate = self;
[self presentViewController:messageComposer animated:YES completion:nil];
}
and the delegate method -
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller
didFinishWithResult:(MessageComposeResult)result {
[self dismissViewControllerAnimated:YES completion:nil];
}
intuitive one-liner
document.write(unescape('%3Cscript src="https://code.jquery.com/jquery-3.1.1.min.js"%3E%3C/script%3Eā))
You can change the src
address.
I referred to ReferenceError: Can't find variable: jQuery
This is just "hack" style method:
int d[][] = new int[n][n];
static int swap(int a, int b) {
return a;
}
...
in main class -->
d[i][j + 1] = swap(d[i][j], d[i][j] = d[i][j + 1])
Try to declare UseHttpGet over your method.
[ScriptMethod(UseHttpGet = true)]
public string HelloWorld()
{
return "Hello World";
}
If you just want to make sure a certain file exists (f.ex. because it shoud be created in a different way than via ansible) and fail if it doesn't, then you can do this:
- name: sanity check that /some/path/file exists
command: stat /some/path/file
check_mode: no # always run
changed_when: false # doesn't change anything
you can also use
Dim intValue as integer = 65 ' letter A for instance
Dim strValue As String = Char.ConvertFromUtf32(intValue)
this doesn't requirement Microsoft.VisualBasic reference
Alternatively, you could create a temporary symbolic link to your file:
ln -s /data/to/zip/data.txt data.txt
zip /dir/to/file/newZip !$
rm !$
This works also for a directory.
import org.apache.commons.httpclient.util.URIUtil;
import org.apache.commons.io.FileUtils;
import groovy.json.JsonSlurper;
import java.io.File;
tmpDir = "/defineYourTmpDir"
URL url = new URL("http://yourOwnURL.com/file.json");
String path = tmpDir + "/tmpRemoteJson" + ".json";
remoteJsonFile = new File(path);
remoteJsonFile.deleteOnExit();
FileUtils.copyURLToFile(url, remoteJsonFile);
String fileTMPPath = remoteJsonFile.getPath();
def inputTMPFile = new File(fileTMPPath);
remoteParsedJson = new JsonSlurper().parseText(inputTMPFile.text);
I find the creation date of c:\pagefile.sys can be pretty reliable in most cases. It can easily be obtained using this command (assuming Windows is installed on C:):
dir /as /t:c c:\pagefile.sys
The '/as' specifies 'system files', otherwise it will not be found. The '/t:c' sets the time field to display 'creation'.
Your code looks fine, but there are a couple of things to be aware of:
Post::find($id);
acts upon the primary key, if you have set your primary key in your model to something other than id
by doing:
protected $primaryKey = 'slug';
then find
will search by that key instead.
Laravel also expects the id
to be an integer, if you are using something other than an integer (such as a string) you need to set the incrementing property on your model to false:
public $incrementing = false;
If some on get this far.
Taking what others have already said above. Here is a one-liner that puts the answer into a text file formatted, json.
curl "http://mydocker.registry.domain/v2/_catalog?n=2000" | jq . - > /tmp/registry.lst
This looks like
{
"repositories": [
"somerepo/somecontiner",
"somerepo_other/someothercontiner",
...
]
}
You might need to change the `?n=xxxx' to match how many containers you have.
Next is a way to automatically remove old and unused containers.
It's possible if you define such a functional interface with multiple type parameters. There is no such built in type. (There are a few limited types with multiple parameters.)
@FunctionalInterface
interface Function6<One, Two, Three, Four, Five, Six> {
public Six apply(One one, Two two, Three three, Four four, Five five);
}
public static void main(String[] args) throws Exception {
Function6<String, Integer, Double, Void, List<Float>, Character> func = (a, b, c, d, e) -> 'z';
}
I've called it Function6
here. The name is at your discretion, just try not to clash with existing names in the Java libraries.
There's also no way to define a variable number of type parameters, if that's what you were asking about.
Some languages, like Scala, define a number of built in such types, with 1, 2, 3, 4, 5, 6, etc. type parameters.
What will this function do if called as Rec(0)
(not under the debugger)?
static void Rec(int i)
{
Console.WriteLine(i);
if (i < int.MaxValue)
{
Rec(i + 1);
}
}
Answer:
This is because the 64-bit JIT compiler applies tail call optimisation, whereas the 32-bit JIT does not.
Unfortunately I haven't got a 64-bit machine to hand to verify this, but the method does meet all the conditions for tail-call optimisation. If anybody does have one I'd be interested to see if it's true.
The registry path for Visual Studio 2008 is the same, but with 9.0 as the version number:
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\Text Editor