I didn't see anyone answer this correctly. So I'm posting it here. In order to get columns to show up you need to specify the following line.
lvRegAnimals.View = View.Details;
And then add your columns after that.
lvRegAnimals.Columns.Add("Id", -2, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Name", -2, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Age", -2, HorizontalAlignment.Left);
Hope this helps anyone else looking for this answer in the future.
Enclose <img>
in <a>
tag.
<a href="http://www.google.com.pk"><img src="smiley.gif"></a>
it will open link on same tab, and if you want to open link on new tab then use target="_blank"
<a href="http://www.google.com.pk" target="_blank"><img src="smiley.gif"></a>
If I have understood your question correctly you want to display one particular cell of your populated datatable? This what I used to display the given cell in my DataGrid.
var s = dataGridView2.Rows[i].Cells[j].Value;
txt_Country.Text = s.ToString();
Hope this helps
The method I prefer assigns an array of data to the combobox. Click on the body of your userform and change the "Click" event to "Initialize". Now the combobox will fill upon the initializing of the userform. I hope this helps.
Sub UserForm_Initialize()
ComboBox1.List = Array("1001", "1002", "1003", "1004", "1005", "1006", "1007", "1008", "1009", "1010")
End Sub
pthread.h
is a header for the Unix/Linux (POSIX) API for threads. A POSIX layer such as Cygwin would probably compile an app with #include <pthreads.h>
.
The native Windows threading API is exposed via #include <windows.h>
and it works slightly differently to Linux's threading.
Still, there's a replacement "glue" library maintained at http://sourceware.org/pthreads-win32/ ; note that it has some slight incompatibilities with MinGW/VS (e.g. see here).
Use the matplotlib savefig
function with the keyword argument transparent=True
to save the image as a png file.
In [30]: x = np.linspace(0,6,31)
In [31]: y = np.exp(-0.5*x) * np.sin(x)
In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]
In [33]: savefig('demo.png', transparent=True)
Result:
Of course, that plot doesn't demonstrate the transparency. Here's a screenshot of the PNG file displayed using the ImageMagick display
command. The checkerboard pattern is the background that is visible through the transparent parts of the PNG file.
You can apply any one approach:
$("#Input_Id").change(function(){ // 1st
// do your code here
// When your element is already rendered
});
$("#Input_Id").on('change', function(){ // 2nd (A)
// do your code here
// It will specifically called on change of your element
});
$("body").on('change', '#Input_Id', function(){ // 2nd (B)
// do your code here
// It will filter the element "Input_Id" from the "body" and apply "onChange effect" on it
});
Alternatively you can install GNU date like so:
brew install coreutils
alias date="/usr/local/bin/gdate"
date +%s
1547838127Comments saying Mac has to be "different" simply reveal the commenter is ignorant of the history of UNIX. macOS is based on BSD UNIX, which is way older than Linux. Linux essentially was a copy of other UNIX systems, and Linux decided to be "different" by adopting GNU tools instead of BSD tools. GNU tools are more user friendly, but they're not usually found on any *BSD system (just the way it is).
Really, if you spend most of your time in Linux, but have a Mac desktop, you probably want to make the Mac work like Linux. There's no sense in trying to remember two different sets of options, or scripting for the mac's BSD version of Bash, unless you are writing a utility that you want to run on both BSD and GNU/Linux shells.
JSON syntax is pretty much the JavaScript syntax for coding your object. Therefore, in terms of conciseness and speed, your own answer is the best bet.
I use this approach when populating dropdown lists in my KnockoutJS model. E.g.
var desktopGrpViewModel = {
availableComputeOfferings: ko.observableArray(@Html.Raw(JsonConvert.SerializeObject(ViewBag.ComputeOfferings))),
desktopGrpComputeOfferingSelected: ko.observable(),
};
ko.applyBindings(desktopGrpViewModel);
...
<select name="ComputeOffering" class="form-control valid" id="ComputeOffering" data-val="true"
data-bind="options: availableComputeOffering,
optionsText: 'Name',
optionsValue: 'Id',
value: desktopGrpComputeOfferingSelect,
optionsCaption: 'Choose...'">
</select>
Note that I'm using Json.NET NuGet package for serialization and the ViewBag to pass data.
You can create a custom directive that is somehow similar to ng-disabled and disable a specific set of elements by:
my-disabled
.HTML
<a my-disabled="disableCreate" href="#" ng-click="disableEdit = true">CREATE</a><br/>
<a my-disabled="disableEdit" href="#" ng-click="disableCreate = true">EDIT</a><br/>
<a my-disabled="disableCreate || disableEdit" href="#">DELETE</a><br/>
<a href="#" ng-click="disableEdit = false; disableCreate = false;">RESET</a>
JAVASCRIPT
directive('myDisabled', function() {
return {
link: function(scope, elem, attr) {
var color = elem.css('color'),
textDecoration = elem.css('text-decoration'),
cursor = elem.css('cursor'),
// double negation for non-boolean attributes e.g. undefined
currentValue = !!scope.$eval(attr.myDisabled),
current = elem[0],
next = elem[0].cloneNode(true);
var nextElem = angular.element(next);
nextElem.on('click', function(e) {
e.preventDefault();
e.stopPropagation();
});
nextElem.css('color', 'gray');
nextElem.css('text-decoration', 'line-through');
nextElem.css('cursor', 'not-allowed');
nextElem.attr('tabindex', -1);
scope.$watch(attr.myDisabled, function(value) {
// double negation for non-boolean attributes e.g. undefined
value = !!value;
if(currentValue != value) {
currentValue = value;
current.parentNode.replaceChild(next, current);
var temp = current;
current = next;
next = temp;
}
})
}
}
});
You really want to use at. It is exactly made for this purpose.
echo /usr/bin/the_command options | at now + 1 day
However if you don't have at, or your hosting company doesn't provide access to it, you could make a self-deleting cron entry.
Sadly, this will remove all your cron entries. However, if you only have one, this is fine.
0 0 2 12 * crontab -r ; /home/adm/bin/the_command options
The command crontab -r
removes your crontab entry. Luckily the rest of the command line will still execute.
WARNING: This is dangerous! It removes ALL cron entries. If you have many, this will remove them all, not just the one that has the "crontab -r" line!
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 />
}
The error is:
Can not deserialize instance of java.lang.String out of START_ARRAY token at [Source: line: 1, column: 1095] (through reference chain: JsonGen["platforms"])
In JSON, platforms
look like this:
"platforms": [
{
"platform": "iphone"
},
{
"platform": "ipad"
},
{
"platform": "android_phone"
},
{
"platform": "android_tablet"
}
]
So try change your pojo to something like this:
private List platforms;
public List getPlatforms(){
return this.platforms;
}
public void setPlatforms(List platforms){
this.platforms = platforms;
}
EDIT: you will need change mobile_networks
too. Will look like this:
private List mobile_networks;
public List getMobile_networks() {
return mobile_networks;
}
public void setMobile_networks(List mobile_networks) {
this.mobile_networks = mobile_networks;
}
I'm using the latest Bootstrap 3 DateTime Picker (http://eonasdan.github.io/bootstrap-datetimepicker/)
This is how you should use DateTime Picker inline:
var selectedDate = $("#datetimepicker").find(".active").data("day");
The above returned: 03/23/2017
These do the same thing:
window.location.assign(url);
window.location = url;
window.location.href = url;
They simply navigate to the new URL. The replace
method on the other hand navigates to the URL without adding a new record to the history.
So, what you have read in those many forums is not correct. The assign
method does add a new record to the history.
Reference: https://developer.mozilla.org/en-US/docs/Web/API/Window/location
By getting the getLastKnownLocation
you do not actually initiate a fix yourself.
Be aware that this could start the provider, but if the user has ever gotten a location before, I don't think it will. The docs aren't really too clear on this.
According to the docs getLastKnownLocation:
Returns a Location indicating the data from the last known location fix obtained from the given provider. This can be done without starting the provider.
Here is a quick snippet:
import android.content.Context;
import android.location.Location;
import android.location.LocationManager;
import java.util.List;
public class UtilLocation {
public static Location getLastKnownLoaction(boolean enabledProvidersOnly, Context context){
LocationManager manager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
Location utilLocation = null;
List<String> providers = manager.getProviders(enabledProvidersOnly);
for(String provider : providers){
utilLocation = manager.getLastKnownLocation(provider);
if(utilLocation != null) return utilLocation;
}
return null;
}
}
You also have to add new permission to AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Request and Superagent are pretty good libraries to use.
note: request is deprecated, use at your risk!
Using request
:
var request=require('request');
request.get('https://someplace',options,function(err,res,body){
if(err) //TODO: handle err
if(res.statusCode === 200 ) //etc
//TODO Do something with response
});
let imageDataDict:[String: UIImage] = ["image": image]
// Post a notification
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict)
// `default` is now a property, not a method call
// Register to receive notification in your class
NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)
// Handle notification
func showSpinningWheel(_ notification: NSNotification) {
print(notification.userInfo ?? "")
if let dict = notification.userInfo as NSDictionary? {
if let id = dict["image"] as? UIImage {
// Do something with your image
}
}
}
let imageDataDict:[String: UIImage] = ["image": image]
// Post a notification
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict)
// `default` is now a property, not a method call
// Register to receive notification in your class
NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)
// Handle notification
@objc func showSpinningWheel(_ notification: NSNotification) {
print(notification.userInfo ?? "")
if let dict = notification.userInfo as NSDictionary? {
if let id = dict["image"] as? UIImage {
// Do something with your image
}
}
}
All special, nonprintable characters are displayed using ^ notation in less. However, line feed is actually printable (just make a new line), so not considered special, so you'll have problems replacing it. If you just want to see line endings, the easiest way might be
sed -e 's/$/$/' | less
The issue with the "one thread per request" model for a server is that they don't scale well for several scenarios compared to the event loop thread model.
Typically, in I/O intensive scenarios the requests spend most of the time waiting for I/O to complete. During this time, in the "one thread per request" model, the resources linked to the thread (such as memory) are unused and memory is the limiting factor. In the event loop model, the loop thread selects the next event (I/O finished) to handle. So the thread is always busy (if you program it correctly of course).
The event loop model as all new things seems shiny and the solution for all issues but which model to use will depend on the scenario you need to tackle. If you have an intensive I/O scenario (like a proxy), the event base model will rule, whereas a CPU intensive scenario with a low number of concurrent processes will work best with the thread-based model.
In the real world most of the scenarios will be a bit in the middle. You will need to balance the real need for scalability with the development complexity to find the correct architecture (e.g. have an event base front-end that delegates to the backend for the CPU intensive tasks. The front end will use little resources waiting for the task result.) As with any distributed system it requires some effort to make it work.
If you are looking for the silver bullet that will fit with any scenario without any effort, you will end up with a bullet in your foot.
I know this is old but neither an <svg>
group tag nor a <g>
fixed the issue I was facing. I needed to adjust the y position of a tag which also had animation on it.
The solution was to use both the and tag together:
<svg y="1190" x="235">
<g class="light-1">
<path />
</g>
</svg>
If it is a category page,you can get id of current category by:
$category = get_category( get_query_var( 'cat' ) );
$cat_id = $category->cat_ID;
If you want to get category id of any particular category on any page, try using :
$category_id = get_cat_ID('Category Name');
You have to create a view, above the EditText, that takes a 'fake' focus:
Something like :
<!-- Stop auto focussing the EditText -->
<LinearLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@android:color/transparent"
android:focusable="true"
android:focusableInTouchMode="true">
</LinearLayout>
<EditText
android:id="@+id/searchAutoCompleteTextView_feed"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:inputType="text" />
In this case, I used a LinearLayout to request the focus. Hope this helps.
This worked perfectly...thanks to Zaggo0
Since April 2018, Google made some changes to the Autoplay Policy. You not only need to add the autoplay=1
as a query param, but also add allow='autoplay'
as an iframe's attribute
So you will have to do something like this:
<iframe src="https://www.youtube.com/embed/VIDEO_ID?autoplay=1" allow='autoplay'></iframe>
Here's an example from AndroidManifest.xml. You need to specify the MAIN and LAUNCHER in the intent filter for the activity you want to start on launch
<application android:label="@string/app_name" android:icon="@drawable/icon">
<activity android:name="ExampleActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Well, first of all, you're wasting memory with the new HashMap
creation call. Your second line completely disregards the reference to this created hashmap, making it then available to the garbage collector. So, don't do that, use:
private Map<String, String> someMap = (HashMap<String, String>)getApplicationContext().getBean("someMap");
Secondly, the compiler is complaining that you cast the object to a HashMap
without checking if it is a HashMap
. But, even if you were to do:
if(getApplicationContext().getBean("someMap") instanceof HashMap) {
private Map<String, String> someMap = (HashMap<String, String>)getApplicationContext().getBean("someMap");
}
You would probably still get this warning. The problem is, getBean
returns Object
, so it is unknown what the type is. Converting it to HashMap
directly would not cause the problem with the second case (and perhaps there would not be a warning in the first case, I'm not sure how pedantic the Java compiler is with warnings for Java 5). However, you are converting it to a HashMap<String, String>
.
HashMaps are really maps that take an object as a key and have an object as a value, HashMap<Object, Object>
if you will. Thus, there is no guarantee that when you get your bean that it can be represented as a HashMap<String, String>
because you could have HashMap<Date, Calendar>
because the non-generic representation that is returned can have any objects.
If the code compiles, and you can execute String value = map.get("thisString");
without any errors, don't worry about this warning. But if the map isn't completely of string keys to string values, you will get a ClassCastException
at runtime, because the generics cannot block this from happening in this case.
When the first characters in a script are #!
, that is called the shebang. If your file starts with
#!/path/to/something
the standard is to run something
and pass the rest of the file to that program as an input.
With that said, the difference between #!/bin/bash
, #!/bin/sh
, or even #!/bin/zsh
is whether the bash, sh, or zsh programs are used to interpret the rest of the file. bash
and sh
are just different programs, traditionally. On some Linux systems they are two copies of the same program. On other Linux systems, sh
is a link to dash
, and on traditional Unix systems (Solaris, Irix, etc) bash
is usually a completely different program from sh
.
Of course, the rest of the line doesn't have to end in sh. It could just as well be #!/usr/bin/python
, #!/usr/bin/perl
, or even #!/usr/local/bin/my_own_scripting_language
.
I hit upon this trying to figure out why you would use mode 'w+' versus 'w'. In the end, I just did some testing. I don't see much purpose for mode 'w+', as in both cases, the file is truncated to begin with. However, with the 'w+', you could read after writing by seeking back. If you tried any reading with 'w', it would raise an IOError. Reading without using seek with mode 'w+' isn't going to yield anything, since the file pointer will be after where you have written.
(...) by using Constructor Injection, you assert the requirement for the dependency in a container-agnostic manner
This mean that you can enforce requirements for all injected fields without using any container specific solution.
With setter injection special spring annotation @Required
is required.
@Required
Marks a method (typically a JavaBean setter method) as being 'required': that is, the setter method must be configured to be dependency-injected with a value.
Usage
import org.springframework.beans.factory.annotation.Required;
import javax.inject.Inject;
import javax.inject.Named;
@Named
public class Foo {
private Bar bar;
@Inject
@Required
public void setBar(Bar bar) {
this.bar = bar;
}
}
All required fields are defined in constructor, pure Java solution.
Usage
import javax.inject.Inject;
import javax.inject.Named;
@Named
public class Foo {
private Bar bar;
@Inject
public Foo(Bar bar) {
this.bar = bar;
}
}
This is especially useful in Unit Testing. Such kind of tests should be very simple and doesn't understand annotation like @Required
, they generally not need a Spring for running simple unit test. When constructor is used, setup of this class for testing is much easier, there is no need to analyze how class under test is implemented.
IANAL but as I see it....
While you can combine GPL and MIT code, the GPL is tainting. Which means the package as a whole gets the limitations of the GPL. As that is more restrictive you can no longer use it in commercial (or rather closed source) software. Which also means if you have a MIT/BSD/ASL project you will not want to add dependencies to GPL code.
Adding a GPL dependency does not change the license of your code but it will limit what people can do with the artifact of your project. This is also why the ASF does not allow dependencies to GPL code for their projects.
When you write the following line of code in TypeScript:
var SUCSS = {};
The type of SUCSS
is inferred from the assignment (i.e. it is an empty object type).
You then go on to add a property to this type a few lines later:
SUCSS.fadeDiv = //...
And the compiler warns you that there is no property named fadeDiv
on the SUCSS
object (this kind of warning often helps you to catch a typo).
You can either... fix it by specifying the type of SUCSS
(although this will prevent you from assigning {}
, which doesn't satisfy the type you want):
var SUCSS : {fadeDiv: () => void;};
Or by assigning the full value in the first place and let TypeScript infer the types:
var SUCSS = {
fadeDiv: function () {
// Simplified version
alert('Called my func');
}
};
A minor improvement on a variant:
Storage.prototype.setObject = function(key, value) {
this.setItem(key, JSON.stringify(value));
}
Storage.prototype.getObject = function(key) {
var value = this.getItem(key);
return value && JSON.parse(value);
}
Because of short-circuit evaluation, getObject()
will immediately return null
if key
is not in Storage. It also will not throw a SyntaxError
exception if value
is ""
(the empty string; JSON.parse()
cannot handle that).
I always do OOP and use this class to maintain the session so u can use the function is_logged_in to check if the user is logged in or not, and if not you do what you wish to.
<?php
class Session
{
private $logged_in=false;
public $user_id;
function __construct() {
session_start();
$this->check_login();
if($this->logged_in) {
// actions to take right away if user is logged in
} else {
// actions to take right away if user is not logged in
}
}
public function is_logged_in() {
return $this->logged_in;
}
public function login($user) {
// database should find user based on username/password
if($user){
$this->user_id = $_SESSION['user_id'] = $user->id;
$this->logged_in = true;
}
}
public function logout() {
unset($_SESSION['user_id']);
unset($this->user_id);
$this->logged_in = false;
}
private function check_login() {
if(isset($_SESSION['user_id'])) {
$this->user_id = $_SESSION['user_id'];
$this->logged_in = true;
} else {
unset($this->user_id);
$this->logged_in = false;
}
}
}
$session = new Session();
?>
think works
Criteria criteria = getSession().createCriteria(clazz);
Criterion rest1= Restrictions.and(Restrictions.eq(A, "X"),
Restrictions.in("B", Arrays.asList("X",Y)));
Criterion rest2= Restrictions.and(Restrictions.eq(A, "Y"),
Restrictions.eq(B, "Z"));
criteria.add(Restrictions.or(rest1, rest2));
There is probably a more efficient solution to your question, but following formula should do the trick:
=SUM(COUNTIFS(J1:J196,"agree",A1:A196,"yes"),COUNTIFS(J1:J196,"agree",A1:A196,"no"))
use fixed-bottom bootstrap class
<div id="footer" class="fixed-bottom w-100">
Converting a date String of the format "2011-06-23T15:11:32" to our time zone.
private String getDate(String ourDate)
{
try
{
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
formatter.setTimeZone(TimeZone.getTimeZone("UTC"));
Date value = formatter.parse(ourDate);
SimpleDateFormat dateFormatter = new SimpleDateFormat("MM-dd-yyyy HH:mm"); //this format changeable
dateFormatter.setTimeZone(TimeZone.getDefault());
ourDate = dateFormatter.format(value);
//Log.d("ourDate", ourDate);
}
catch (Exception e)
{
ourDate = "00-00-0000 00:00";
}
return ourDate;
}
Try using an absolute path for the filename. And if you are using Windows, use getlasterror() to see the actual error message.
The [] operator is called an indexer. You can provide indexers that take an integer, a string, or any other type you want to use as a key. The syntax is straightforward, following the same principles as property accessors.
For example, in your case where an int
is the key or index:
public int this[int index]
{
get => GetValue(index);
}
You can also add a set accessor so that the indexer becomes read and write rather than just read-only.
public int this[int index]
{
get => GetValue(index);
set => SetValue(index, value);
}
If you want to index using a different type, you just change the signature of the indexer.
public int this[string index]
...
Remove the dependency "junit:junit:4.12" from app modules...!!! This solution is for gradle to sync all files.
Use this code in your style tag
<style>
html {
background: url(imagename) no-repeat center center fixed;
background-size: cover;
height: 100%;
overflow: hidden;
}
</style>
The problem is that you do not insert your canvas element in the document body.
Just do the following:
document.body.appendChild(canvas);
Example:
var canvas = document.createElement('canvas');_x000D_
_x000D_
canvas.id = "CursorLayer";_x000D_
canvas.width = 1224;_x000D_
canvas.height = 768;_x000D_
canvas.style.zIndex = 8;_x000D_
canvas.style.position = "absolute";_x000D_
canvas.style.border = "1px solid";_x000D_
_x000D_
_x000D_
var body = document.getElementsByTagName("body")[0];_x000D_
body.appendChild(canvas);_x000D_
_x000D_
cursorLayer = document.getElementById("CursorLayer");_x000D_
_x000D_
console.log(cursorLayer);_x000D_
_x000D_
// below is optional_x000D_
_x000D_
var ctx = canvas.getContext("2d");_x000D_
ctx.fillStyle = "rgba(255, 0, 0, 0.2)";_x000D_
ctx.fillRect(100, 100, 200, 200);_x000D_
ctx.fillStyle = "rgba(0, 255, 0, 0.2)";_x000D_
ctx.fillRect(150, 150, 200, 200);_x000D_
ctx.fillStyle = "rgba(0, 0, 255, 0.2)";_x000D_
ctx.fillRect(200, 50, 200, 200);
_x000D_
Educated guess: You have a ISO-8859-1 encoded pound sign in a UTF-8 encoded page.
Make sure your data is in the right encoding and everything will work fine.
My conclusion is HTML doesn't allows NESTED SCRIPT tags. If you are using javascript for injecting HTML code that include script tags inside is not going to work because the javascript goes in a script tag too. You can test it with the next code and you will be that it's not going to work. The use case is you are calling a service with AJAX or similar, you are getting HTML and you want to inject it in the HTML DOM straight forward. If the injected HTML code has inside SCRIPT tags is not going to work.
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></head><body></body><script>document.getElementsByTagName("body")[0].innerHTML = "<script>console.log('hi there')</script>\n<div>hello world</div>\n"</script></html>
For people just stumbling upon this now, I resolved an error of this type that was thrown with all the references and using statements placed properly. There's evidently some confusion with substituting in a function that returns DataTable instead of calling it on a declared DataTable. For example:
This worked for me:
DataTable dt = SomeObject.ReturnsDataTable();
List<string> ls = dt.AsEnumerable().Select(dr => dr["name"].ToString()).ToList<string>();
But this didn't:
List<string> ls = SomeObject.ReturnsDataTable().AsEnumerable().Select(dr => dr["name"].ToString()).ToList<string>();
I'm still not 100% sure why, but if anyone is frustrated by an error of this type, give this a try.
Try this
Check if table have there , and drop the table , then create
using (SqlCommand command = new SqlCommand("IF EXISTS (
SELECT *
FROM sys.tables
WHERE name LIKE '#Customer%')
DROP TABLE #Customer CREATE TABLE Customer(First_Name char(50),Last_Name char(50),Address char(50),City char(50),Country char(25),Birth_Date datetime);", con))
Another way around using cross join would be to specify column names inside cross join
select name, Subject, Marks
from studentmarks
Cross Join (
values (Maths,'Maths'),(Science,'Science'),(English,'English')
) un(Marks, Subject)
where marks is not null;
Be nice if there was a Javascript API version. That way can integrate w/ other AJAX apps or browser extensions/gadgets/widgets.
Right now, current APIs restrict to web app technologies that support Java, .NET, or Python, more for server side, unless may use Google Web Toolkit to translate Java code to Javascript.
My experience with larger files sizes has been that java.nio
is faster than java.io
. Solidly faster. Like in the >250% range. That said, I am eliminating obvious bottlenecks, which I suggest your micro-benchmark might suffer from. Potential areas for investigating:
The buffer size. The algorithm you basically have is
My own experience has been that this buffer size is ripe for tuning. I've settled on 4KB for one part of my application, 256KB for another. I suspect your code is suffering with such a large buffer. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks that read and write to the same disk.
If you do, then you are really benchmarking the disk, and not Java. I would also suggest that if your CPU is not busy, then you are probably experiencing some other bottleneck.
Don't use a buffer if you don't need to.
Why copy to memory if your target is another disk or a NIC? With larger files, the latency incured is non-trivial.
Like other have said, use FileChannel.transferTo()
or FileChannel.transferFrom()
. The key advantage here is that the JVM uses the OS's access to DMA (Direct Memory Access), if present. (This is implementation dependent, but modern Sun and IBM versions on general purpose CPUs are good to go.) What happens is the data goes straight to/from disc, to the bus, and then to the destination... bypassing any circuit through RAM or the CPU.
The web app I spent my days and night working on is very IO heavy. I've done micro benchmarks and real-world benchmarks too. And the results are up on my blog, have a look-see:
Use production data and environments
Micro-benchmarks are prone to distortion. If you can, make the effort to gather data from exactly what you plan to do, with the load you expect, on the hardware you expect.
My benchmarks are solid and reliable because they took place on a production system, a beefy system, a system under load, gathered in logs. Not my notebook's 7200 RPM 2.5" SATA drive while I watched intensely as the JVM work my hard disc.
What are you running on? It matters.
I think Pandas is the best way to go. There is already one answer here with Pandas using ExcelFile
function, but it did not work properly for me. From here I found the read_excel
function which works just fine:
import pandas as pd
dfs = pd.read_excel("your_file_name.xlsx", sheet_name="your_sheet_name")
print(dfs.head(10))
P.S. You need to have the xlrd
installed for read_excel
function to work
Update 21-03-2020: As you may see here, there are issues with the xlrd
engine and it is going to be deprecated. The openpyxl
is the best replacement. So as described here, the canonical syntax should be:
dfs = pd.read_excel("your_file_name.xlsx", sheet_name="your_sheet_name", engine="openpyxl")
This is how I did this so that only one progress dialog can be open at a time. Based off of the answer from Suraj Bajaj
private ProgressDialog progress;
public void showLoadingDialog() {
if (progress == null) {
progress = new ProgressDialog(this);
progress.setTitle(getString(R.string.loading_title));
progress.setMessage(getString(R.string.loading_message));
}
progress.show();
}
public void dismissLoadingDialog() {
if (progress != null && progress.isShowing()) {
progress.dismiss();
}
}
I also had to use
protected void onResume() {
dismissLoadingDialog();
super.onResume();
}
Leaving this here for myself,
If I get this error, I probably used const char*
when I should be using char* const
.
This makes the pointer constant, and not the contents of the string.
const char* const
makes it so the value and the pointer is constant also.
I think it may help you-
Read your error carefully-./src/App.js Module not found: Can't resolve './src/components/header/header' in '/home/wiseman/Desktop/React_Components/github-portfolio/src'
just write- ./header/header instead ./src/components/header/header in App.js
if it doesnt work try to change header file name may be head
The string that you get is just the JSON Object.toString(). It means that you get the JSON object, but in a String format.
If you are supposed to get a JSON Object you can just put:
JSONObject myObject = new JSONObject(result);
An alternative to the cursor.description solution from smallredstone could be to use row.keys():
import sqlite3
connection = sqlite3.connect('~/foo.sqlite')
connection.row_factory = sqlite3.Row
cursor = connection.execute('select * from bar')
# instead of cursor.description:
row = cursor.fetchone()
names = row.keys()
The drawback: it only works if there is at least a row returned from the query.
The benefit: you can access the columns by their name (row['your_column_name'])
Read more about the Row objects in the python documentation.
'use strict'; angular.module('app') .run( [ '$rootScope', '$state', '$stateParams', function($rootScope, $state, $stateParams) { $rootScope.$state = $state; $rootScope.$stateParams = $stateParams; } ] ) .config( [ '$stateProvider', '$urlRouterProvider', function($stateProvider, $urlRouterProvider) {
$urlRouterProvider
.otherwise('/app/dashboard');
$stateProvider
.state('app', {
abstract: true,
url: '/app',
templateUrl: 'views/layout.html'
})
.state('app.dashboard', {
url: '/dashboard',
templateUrl: 'views/dashboard.html',
ncyBreadcrumb: {
label: 'Dashboard',
description: ''
},
resolve: {
deps: [
'$ocLazyLoad',
function($ocLazyLoad) {
return $ocLazyLoad.load({
serie: true,
files: [
'lib/jquery/charts/sparkline/jquery.sparkline.js',
'lib/jquery/charts/easypiechart/jquery.easypiechart.js',
'lib/jquery/charts/flot/jquery.flot.js',
'lib/jquery/charts/flot/jquery.flot.resize.js',
'lib/jquery/charts/flot/jquery.flot.pie.js',
'lib/jquery/charts/flot/jquery.flot.tooltip.js',
'lib/jquery/charts/flot/jquery.flot.orderBars.js',
'app/controllers/dashboard.js',
'app/directives/realtimechart.js'
]
});
}
]
}
})
.state('ram', {
abstract: true,
url: '/ram',
templateUrl: 'views/layout-ram.html'
})
.state('ram.dashboard', {
url: '/dashboard',
templateUrl: 'views/dashboard-ram.html',
ncyBreadcrumb: {
label: 'test'
},
resolve: {
deps: [
'$ocLazyLoad',
function($ocLazyLoad) {
return $ocLazyLoad.load({
serie: true,
files: [
'lib/jquery/charts/sparkline/jquery.sparkline.js',
'lib/jquery/charts/easypiechart/jquery.easypiechart.js',
'lib/jquery/charts/flot/jquery.flot.js',
'lib/jquery/charts/flot/jquery.flot.resize.js',
'lib/jquery/charts/flot/jquery.flot.pie.js',
'lib/jquery/charts/flot/jquery.flot.tooltip.js',
'lib/jquery/charts/flot/jquery.flot.orderBars.js',
'app/controllers/dashboard.js',
'app/directives/realtimechart.js'
]
});
}
]
}
})
);
You can use scalar multiplication to modify each element in your vector.
> r <- 0:10
> r <- r * 2
> r
[1] 0 2 4 6 8 10 12 14 16 18 20
or
> r <- 0:10 * 2
> r
[1] 0 2 4 6 8 10 12 14 16 18 20
declare n number(10);
begin
select count(*) into n from tab where tname='TEST';
if (n = 0) then
execute immediate
'create table TEST ( ID NUMBER(3), NAME VARCHAR2 (30) NOT NULL)';
end if;
end;
This is useful when you want to have a global variable. You define the global variables in some source file, and declare them extern in a header file so that any file that includes that header file will then see the same global variable.
Not sure why this is so difficult for people. Substr does a great job and is efficient as you don't need to search the whole string if it doesn't match.
Additionally, since I'm not checking integer values but comparing strings I don't have to necessarily have to worry about the strict === case. However, === is a good habit to get into.
function startsWith($haystack,$needle) {
substring($haystack,0,strlen($needle)) == $needle) { return true; }
return false;
}
function endsWith($haystack,$needle) {
if(substring($haystack,-strlen($needle)) == $needle) { return true; }
return false;
}
or even better optimized.
function startsWith($haystack,$needle) {
return substring($haystack,0,strlen($needle)) == $needle);
}
function endsWith($haystack,$needle) {
return substring($haystack,-strlen($needle)) == $needle);
}
It is possible to have hierarchical branch names (branch names with slash). For example in my repository I have such branch(es). One caveat is that you can't have both branch 'foo' and branch 'foo/bar' in repository.
Your problem is not with creating branch with slash in name.
$ git branch foo/bar error: unable to resolve reference refs/heads/labs/feature: Not a directory fatal: Failed to lock ref for update: Not a directory
The above error message talks about 'labs/feature' branch, not 'foo/bar' (unless it is a mistake in copy'n'paste, i.e you edited parts of session). What is the result of git branch
or git rev-parse --symbolic-full-name HEAD
?
This question is really old, but I came across this page when I was looking for the easiest and quickest way to do this. Using Webpack is much simpler:
install webpack-dev-server
npm i -g webpack-dev-server
start webpack-dev-server with https
webpack-dev-server --https
You can do that using the SimpleDateFormat
class.
SimpleDateFormat formatter=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dates=formatter.format(mydate);
//mydate is your date object
Ive come across this many times in my work, an easy work around that I found is to ask if the array element is a Hash by class.
if i.class == Hash
notation like i[:label] will work in this block and not throw that error
end
I used the content+wrapper
approach ... but I did something different than mentioned so far: I made sure that my wrapper's boundaries did NOT line up with the content's boundaries in the direction that I wanted to be visible.
Important NOTE: It was easy enough to get the content+wrapper, same-bounds
approach to work on one browser or another depending on various css combinations of position
, overflow-*
, etc ... but I never could use that approach to get them all correct (Edge, Chrome, Safari, ...).
But when I had something like:
<div id="hack_wrapper" // created solely for this purpose
style="position:absolute; width:100%; height:100%; overflow-x:hidden;">
<div id="content_wrapper"
style="position:absolute; width:100%; height:15%; overflow:visible;">
... content with too-much horizontal content ...
</div>
</div>
... all browsers were happy.
Great answer Alex. One potential issue is the NULL dereference. Apple's reference on Creating and Returning NSError objects
...
[details setValue:@"ran out of money" forKey:NSLocalizedDescriptionKey];
if (error != NULL) {
// populate the error object with the details
*error = [NSError errorWithDomain:@"world" code:200 userInfo:details];
}
// we couldn't feed the world's children...return nil..sniffle...sniffle
return nil;
...
There are two classes that lives in different assemblies and different namespaces.
WinForms: use following namespace declaration, make sure Main
is marked with [STAThread]
attribute:
using System.Windows.Forms;
WPF: use following namespace declaration
using System.Windows;
console: add reference to System.Windows.Forms
, use following namespace declaration, make sure Main
is marked with [STAThread]
attribute. Step-by-step guide in another answer
using System.Windows.Forms;
To copy an exact string (literal in this case):
Clipboard.SetText("Hello, clipboard");
To copy the contents of a textbox either use TextBox.Copy() or get text first and then set clipboard value:
Clipboard.SetText(txtClipboard.Text);
See here for an example. Or... Official MSDN documentation or Here for WPF.
Remarks:
Clipboard is desktop UI concept, trying to set it in server side code like ASP.Net will only set value on the server and has no impact on what user can see in they browser. While linked answer lets one to run Clipboard access code server side with SetApartmentState
it is unlikely what you want to achieve.
If after following information in this question code still gets an exception see "Current thread must be set to single thread apartment (STA)" error in copy string to clipboard
This question/answer covers regular .NET, for .NET Core see - .Net Core - copy to clipboard?
Log4j
by default looks for a file called log4j.properties
or log4j.xml
on the classpath.
You can control which file it uses to initialize itself by setting system properties as described here (Look for the "Default Initialization Procedure" section).
For example:
java -Dlog4j.configuration=customName ....
Will cause log4j
to look for a file called customName on the classpath.
If you are having problems I find it helpful to turn on the log4j.debug:
-Dlog4j.debug
It will print to System.out lots of helpful information about which file it used to initialize itself, which loggers / appenders got configured and how etc.
The configuration file can be a java properties file or an xml file. Here is a sample of the properties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
This is what worked for me perfectly:-
// slide the view from its current position to below itself
public void slideUp(final View view, final View llDomestic){
ObjectAnimator animation = ObjectAnimator.ofFloat(view, "translationY",0f);
animation.setDuration(100);
llDomestic.setVisibility(View.GONE);
animation.start();
}
// slide the view from below itself to the current position
public void slideDown(View view,View llDomestic){
llDomestic.setVisibility(View.VISIBLE);
ObjectAnimator animation = ObjectAnimator.ofFloat(view, "translationY", 0f);
animation.setDuration(100);
animation.start();
}
llDomestic : The view which you want to hide. view: The view which you want to move down or up.
Assuming you are using Windows forms, you could allow the user to select a row and in the delete key click event. It is recommended that you allow the user to select 1 row only and not a group of rows (myDataGridView.MultiSelect = false)
Private Sub pbtnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
If myDataGridView.SelectedRows.Count > 0 Then
'you may want to add a confirmation message, and if the user confirms delete
myDataGridView.Rows.Remove(myDataGridView.SelectedRows(0))
Else
MessageBox.Show("Select 1 row before you hit Delete")
End If
End Sub
Note that this will not delete the row form the database until you perform the delete in the database.
Also, name it divrat.m
, not divrat.M
. This shouldn't matter on most OSes, but who knows...
You can also test whether matlab can find a function by using the which
command, i.e.
which divrat
Also if you want different status-bar
color for different activity (fragments) you can do it with following steps (work on API 21 and above):
First create values21/style.xml
and put following code:
<style name="AIO" parent="AIOBase">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:windowContentTransitions">true</item>
</style>
Then define White|Dark themes in your values/style.xml
like following:
<style name="AIOBase" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/color_primary</item>
<item name="colorPrimaryDark">@color/color_primary_dark</item>
<item name="colorAccent">@color/color_accent</item>
<item name="android:textColorPrimary">@android:color/black</item>
<item name="android:statusBarColor" tools:targetApi="lollipop">@color/color_primary_dark
</item>
<item name="android:textColor">@color/gray_darkest</item>
<item name="android:windowBackground">@color/default_bg</item>
<item name="android:colorBackground">@color/default_bg</item>
</style>
<style name="AIO" parent="AIOBase" />
<style name="AIO.Dark" parent="AIOBase">
<item name="android:statusBarColor" tools:targetApi="lollipop">#171717
</item>
</style>
<style name="AIO.White" parent="AIOBase">
<item name="android:statusBarColor" tools:targetApi="lollipop">#bdbdbd
</item>
</style>
Also don't forget to apply themes in your manifest.xml
.
You may just need addObserver
in viewDidLoad
. But having addObserver
in viewWillAppear
and removeObserver
in viewWillDisappear
prevents rare crashes which happens when you are changing your view.
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: UIResponder.keyboardWillHideNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: UIResponder.keyboardWillShowNotification, object: nil)
}
@objc func keyboardWillAppear() {
//Do something here
}
@objc func keyboardWillDisappear() {
//Do something here
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
NotificationCenter.default.removeObserver(self)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: Notification.Name.UIKeyboardWillHide, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: Notification.Name.UIKeyboardWillShow, object: nil)
}
@objc func keyboardWillAppear() {
//Do something here
}
@objc func keyboardWillDisappear() {
//Do something here
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
NotificationCenter.default.removeObserver(self)
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
NSNotificationCenter.defaultCenter().addObserver(self, selector:"keyboardWillAppear:", name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector:"keyboardWillDisappear:", name: UIKeyboardWillHideNotification, object: nil)
}
func keyboardWillAppear(notification: NSNotification){
// Do something here
}
func keyboardWillDisappear(notification: NSNotification){
// Do something here
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
NSNotificationCenter.defaultCenter().removeObserver(self)
}
You could google on "tuple unpacking". This can be used in various places in Python. The simplest is in assignment
>>> x = (1,2)
>>> a, b = x
>>> a
1
>>> b
2
In a for loop it works similarly. If each element of the iterable is a tuple, then you can specify two variables and each element in the loop will be unpacked to the two.
>>> x = [(1,2), (3,4), (5,6)]
>>> for item in x:
... print "A tuple", item
A tuple (1, 2)
A tuple (3, 4)
A tuple (5, 6)
>>> for a, b in x:
... print "First", a, "then", b
First 1 then 2
First 3 then 4
First 5 then 6
The enumerate function creates an iterable of tuples, so it can be used this way.
Unfortunately you are only able to specify struct in the where clause in this instance. It does seem strange you can't specify Int16, Int32, etc. specifically but I'm sure there's some deep implementation reason underlying the decision to not permit value types in a where clause.
I guess the only solution is to do a runtime check which unfortunately prevents the problem being picked up at compile time. That'd go something like:-
static bool IntegerFunction<T>(T value) where T : struct {
if (typeof(T) != typeof(Int16) &&
typeof(T) != typeof(Int32) &&
typeof(T) != typeof(Int64) &&
typeof(T) != typeof(UInt16) &&
typeof(T) != typeof(UInt32) &&
typeof(T) != typeof(UInt64)) {
throw new ArgumentException(
string.Format("Type '{0}' is not valid.", typeof(T).ToString()));
}
// Rest of code...
}
Which is a little bit ugly I know, but at least provides the required constraints.
I'd also look into possible performance implications for this implementation, perhaps there's a faster way out there.
If one wants to support Generics (in an extension method) this is the pattern...
public static List<T> Deserialize<T>(this string SerializedJSONString)
{
var stuff = JsonConvert.DeserializeObject<List<T>>(SerializedJSONString);
return stuff;
}
It is used like this:
var rc = new MyHttpClient(URL);
//This response is the JSON Array (see posts above)
var response = rc.SendRequest();
var data = response.Deserialize<MyClassType>();
MyClassType looks like this (must match name value pairs of JSON array)
[JsonObject(MemberSerialization = MemberSerialization.OptIn)]
public class MyClassType
{
[JsonProperty(PropertyName = "Id")]
public string Id { get; set; }
[JsonProperty(PropertyName = "Name")]
public string Name { get; set; }
[JsonProperty(PropertyName = "Description")]
public string Description { get; set; }
[JsonProperty(PropertyName = "Manager")]
public string Manager { get; set; }
[JsonProperty(PropertyName = "LastUpdate")]
public DateTime LastUpdate { get; set; }
}
Use NUGET to download Newtonsoft.Json add a reference where needed...
using Newtonsoft.Json;
Determine whether the list of names is different with each query or reused. If it is reused, it belongs to the database.
Even if it is unique with each query, it may be useful to load it to a temporary table (#table
syntax) for performance reasons - in that case you will be able to avoid recompilation of a complex query.
If the maximum number of names is fixed, you should use a parametrized query.
However, if none of the above cases applies, I would go with inlining the names in the query as in your approach #1.
What also seems to work fine is creating a file application-dev.properties
that contains:
security.basic.enabled=false
management.security.enabled=false
If you then start your Spring Boot app with the dev
profile, you don't need to log on.
I tried this and it worked.
app.get('/', function (req, res) {
res.sendFile('public/index.html', { root: __dirname });
});
It can very much be an ssh-agent issue.
Check whether there is an ssh-agent PID currently running with eval "$(ssh-agent -s)"
Check whether your identity is added with ssh-add -l
and if not, add it with ssh-add <pathToYourRSAKey>
.
Then try again your ssh command (or any other command that spawns ssh daemons, like autossh for example) that returned 255.
You don't need regex to split a string on whitespace:
In [1]: text = '''WYATT - Ranked # 855 with 0.006 %
...: XAVIER - Ranked # 587 with 0.013 %
...: YONG - Ranked # 921 with 0.006 %
...: YOUNG - Ranked # 807 with 0.007 %'''
In [2]: print '\n'.join(line.split()[0] for line in text.split('\n'))
WYATT
XAVIER
YONG
YOUNG
you can use
SELECT [column_name]
FROM [table_name]
WHERE [column_name] LIKE '% %'
OR [column_name] IS NULL
I know this is a bit old, but in case another beginner is going through this, I'll share some code that covers a bit more of the basic operations, here is another example that also includes the option to cancel the process and also report to the user the status of the process. I'm going to add on top of the code given by Alex Aza in the solution above
public Form1()
{
InitializeComponent();
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted; //Tell the user how the process went
backgroundWorker1.WorkerReportsProgress = true;
backgroundWorker1.WorkerSupportsCancellation = true; //Allow for the process to be cancelled
}
//Start Process
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
//Cancel Process
private void button2_Click(object sender, EventArgs e)
{
//Check if background worker is doing anything and send a cancellation if it is
if (backgroundWorker1.IsBusy)
{
backgroundWorker1.CancelAsync();
}
}
private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1000);
backgroundWorker1.ReportProgress(i);
//Check if there is a request to cancel the process
if (backgroundWorker1.CancellationPending)
{
e.Cancel = true;
backgroundWorker1.ReportProgress(0);
return;
}
}
//If the process exits the loop, ensure that progress is set to 100%
//Remember in the loop we set i < 100 so in theory the process will complete at 99%
backgroundWorker1.ReportProgress(100);
}
private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;
}
private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
lblStatus.Text = "Process was cancelled";
}
else if (e.Error != null)
{
lblStatus.Text = "There was an error running the process. The thread aborted";
}
else
{
lblStatus.Text = "Process was completed";
}
}
Please be careful,
MSSQL: "SELECT * INTO NewTable FROM OldTable"
is not always the same as
MYSQL: "create table temp AS select.."
I think that there are occasions when this (in MSSQL) does not guarantee that all the fields in the new table are of the same type as the old.
For example :
create table oldTable (field1 varchar(10), field2 integer, field3 float)
insert into oldTable (field1,field2,field3) values ('1', 1, 1)
select top 1 * into newTable from oldTable
does not always yield:
create table newTable (field1 varchar(10), field2 integer, field3 float)
but may be:
create table newTable (field1 varchar(10), field2 integer, field3 integer)
Use the XML Tools plugin for Notepad++ and then you can Auto-Indent the code with Ctrl+Alt+Shift+B .For the more point-and-click inclined, you could also go to Plugins --> XML Tools --> Pretty Print.
Run below commands in Terminal:
npm install --save-dev webpack
npm install --save-dev webpack-dev-server
try this
$.getJSON(url, function(data){
$.each(data.response.venue.tips.groups.items, function (index, value) {
console.log(this.text);
});
});
This is generally very ugly (but sometimes the alternatives are even more ugly), so a workaround is to make a braces expression:
lambda: (
doFoo('abc'),
doBar(123),
doBaz())
It won't accept any assignments though, so you'll have to prepare data beforehand. The place I found this useful is the PySide wrapper, where you sometimes have short callbacks. Writing additional member functions would be even more ugly. Normally you won't need this.
Example:
pushButtonShowDialog.clicked.connect(
lambda: (
field1.clear(),
spinBox1.setValue(0),
diag.show())
i have a solution who work here to check if internet connection exist :
$.ajax({
url: "http://www.google.com",
context: document.body,
error: function(jqXHR, exception) {
alert('Offline')
},
success: function() {
alert('Online')
}
})
The reformat on semicolon or closing brace cannot be turned off. I find it infuriating the Microsoft would have the temerity to tell anyone how to format code; the most illegible code I have ever seen was while working there.
I want adjacent assignments to be vertically aligned; VS reformats them to one space on either side of the equal sign irrespective of the length of the variable on the left. This is intolerable. And turning it off on the editor options is ignored; given comments like the opener above I am certain this is deliberate.
Consistency is only a virtue when it leads to desirable outcomes. This is not one.
SELECT COUNT(ID) FROM tblA a
WHERE a.ID NOT IN (SELECT b.ID FROM tblB b) --For count
SELECT ID FROM tblA a
WHERE a.ID NOT IN (SELECT b.ID FROM tblB b) --For results
private static UserService userService = ApplicationContextHolder.getContext().getBean(UserService.class);
one simple way SELECT '123'+ 0
Make sure to learn from the padding oracle asp.net vulnerability that just happened (you applied the patch, right? ...) and use protected sections to encrypt the machine key and any other sensitive configuration.
An alternative option is to set it in the machine level web.config, so its not even in the web site folder.
To generate it do it just like the linked article in David's answer.
You can also use EXIT_SUCCESS
instead of return 0;
. The macro EXIT_SUCCESS
is actually defined as zero, but makes your program more readable.
Welcome to Java! This Nodes are like a blocks, they must be assembled to do amazing things! In this particular case, your nodes can represent a list, a linked list, You can see an example here:
public class ItemLinkedList {
private ItemInfoNode head;
private ItemInfoNode tail;
private int size = 0;
public int getSize() {
return size;
}
public void addBack(ItemInfo info) {
size++;
if (head == null) {
head = new ItemInfoNode(info, null, null);
tail = head;
} else {
ItemInfoNode node = new ItemInfoNode(info, null, tail);
this.tail.next =node;
this.tail = node;
}
}
public void addFront(ItemInfo info) {
size++;
if (head == null) {
head = new ItemInfoNode(info, null, null);
tail = head;
} else {
ItemInfoNode node = new ItemInfoNode(info, head, null);
this.head.prev = node;
this.head = node;
}
}
public ItemInfo removeBack() {
ItemInfo result = null;
if (head != null) {
size--;
result = tail.info;
if (tail.prev != null) {
tail.prev.next = null;
tail = tail.prev;
} else {
head = null;
tail = null;
}
}
return result;
}
public ItemInfo removeFront() {
ItemInfo result = null;
if (head != null) {
size--;
result = head.info;
if (head.next != null) {
head.next.prev = null;
head = head.next;
} else {
head = null;
tail = null;
}
}
return result;
}
public class ItemInfoNode {
private ItemInfoNode next;
private ItemInfoNode prev;
private ItemInfo info;
public ItemInfoNode(ItemInfo info, ItemInfoNode next, ItemInfoNode prev) {
this.info = info;
this.next = next;
this.prev = prev;
}
public void setInfo(ItemInfo info) {
this.info = info;
}
public void setNext(ItemInfoNode node) {
next = node;
}
public void setPrev(ItemInfoNode node) {
prev = node;
}
public ItemInfo getInfo() {
return info;
}
public ItemInfoNode getNext() {
return next;
}
public ItemInfoNode getPrev() {
return prev;
}
}
}
EDIT:
Declare ItemInfo as this:
public class ItemInfo {
private String name;
private String rfdNumber;
private double price;
private String originalPosition;
public ItemInfo(){
}
public ItemInfo(String name, String rfdNumber, double price, String originalPosition) {
this.name = name;
this.rfdNumber = rfdNumber;
this.price = price;
this.originalPosition = originalPosition;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRfdNumber() {
return rfdNumber;
}
public void setRfdNumber(String rfdNumber) {
this.rfdNumber = rfdNumber;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public String getOriginalPosition() {
return originalPosition;
}
public void setOriginalPosition(String originalPosition) {
this.originalPosition = originalPosition;
}
}
Then, You can use your nodes inside the linked list like this:
public static void main(String[] args) {
ItemLinkedList list = new ItemLinkedList();
for (int i = 1; i <= 10; i++) {
list.addBack(new ItemInfo("name-"+i, "rfd"+i, i, String.valueOf(i)));
}
while (list.size() > 0){
System.out.println(list.removeFront().getName());
}
}
Set the charset at after you made the connection to db like
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if (!$conn->set_charset("utf8")) {
printf("Error loading character set utf8: %s\n", $conn->error);
exit();
} else {
printf("Current character set: %s\n", $conn->character_set_name());
}
your maximum, minimum method is right
but you don't print int to console!
and... maybe better location change (maximum, minimum) methods
now (maximum, minimum) methods in the roop. it is need not.. just need one call
i suggest change this code
for (int i = 0 ; i < array.length; i++ ) {
int next = input.nextInt();
// sentineil that will stop loop when 999 is entered
if (next == 999)
break;
array[i] = next;
}
System.out.println("max Value : " + getMaxValue(array));
System.out.println("min Value : " + getMinValue(array));
System.out.println("These are the numbers you have entered.");
printArray(array);
According to the documentation on random.uniform
:
Return a random floating point number N such that a <= N <= b for a <= b and b <= N <= a for b < a.
while random.random
:
Return the next random floating point number in the range [0.0, 1.0).
I.e. with random.uniform
you specify a range you draw pseudo-random numbers from, e.g. between 3 and 10. With random.random
you get a number between 0 and 1.
I had this issue where I had already created the table and could not change it without dropping the table so what I did was: (Not sure when they implemented this but had it in SQL 2016)
Right click on the table in the Object Explorer:
Script Table as > DROP And CREATE To > New Query Editor Window
Then do the edit to the script said by Josien; scroll to the bottom where the CREATE TABLE
is, find your Primary Key and append IDENTITY(1,1)
to the end before the comma. Run script.
The DROP and CREATE script was also helpful for me because of this issue. (Which the generated script handles.)
Add this
node_modules/
to .gitignore
file to ignore all directories called node_modules
in current folder and any subfolders
PostgreSQL supports schemas, which is a subset of a database: https://www.postgresql.org/docs/current/static/ddl-schemas.html
A database contains one or more named schemas, which in turn contain tables. Schemas also contain other kinds of named objects, including data types, functions, and operators. The same object name can be used in different schemas without conflict; for example, both schema1 and myschema can contain tables named mytable. Unlike databases, schemas are not rigidly separated: a user can access objects in any of the schemas in the database they are connected to, if they have privileges to do so.
Schemas are analogous to directories at the operating system level, except that schemas cannot be nested.
In my humble opinion, MySQL is not a reference database. You should never quote MySQL for an explanation. MySQL implements non-standard SQL and sometimes claims features that it does not support. For example, in MySQL, CREATE schema will only create a DATABASE. It is truely misleading users.
This kind of vocabulary is called "MySQLism" by DBAs.
You just need to:
Step 1: Go home directory of C:\ with typing cd.. (2 times)
Step 2: It appears now C:\>
Step 3: Type dir Windows\System32\run
That's all, it shows complete files & folder details inside target folder.
Details: I used Windows\System32\com
folder as example, you should type your own folder name etc. Windows\System32\run
The -z
option for grep is also pretty slick!
cat file1 | grep -z "pattern"
The solution for preventing Google Chrome error messages on input each symbol:
<p>Click the 'Submit' button with empty input field and you will see the custom error message. Then put "-" sign in the same input field.</p>_x000D_
<form method="post" action="#">_x000D_
<label for="text_number_1">Here you will see browser's error validation message on input:</label><br>_x000D_
<input id="test_number_1" type="number" min="0" required="true"_x000D_
oninput="this.setCustomValidity('')"_x000D_
oninvalid="this.setCustomValidity('This is my custom message.')"/>_x000D_
<input type="submit"/>_x000D_
</form>_x000D_
_x000D_
<form method="post" action="#">_x000D_
<p></p>_x000D_
<label for="text_number_1">Here you will see no error messages on input:</label><br>_x000D_
<input id="test_number_2" type="number" min="0" required="true"_x000D_
oninput="(function(e){e.setCustomValidity(''); return !e.validity.valid && e.setCustomValidity(' ')})(this)"_x000D_
oninvalid="this.setCustomValidity('This is my custom message.')"/>_x000D_
<input type="submit"/>_x000D_
</form>
_x000D_
<%: DateTime.Today.ToShortDateString() %>
If that's the entire log4j.properties file it looks like you're never actually creating a logger. You need a line like:
log4j.rootLogger=debug,A1
If you are looking to just repopulate the fields with the values that were posted in them, then just echo the post value back into the field, like so:
<input type="text" name="myField1" value="<?php echo isset($_POST['myField1']) ? $_POST['myField1'] : '' ?>" />
Complete example based on the excellent @Hackaholic's answer:
def get_process_id(name):
"""Return process ids found by (partial) name or regex.
>>> get_process_id('kthreadd')
[2]
>>> get_process_id('watchdog')
[10, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, 61] # ymmv
>>> get_process_id('non-existent process')
[]
"""
child = subprocess.Popen(['pgrep', '-f', name], stdout=subprocess.PIPE, shell=False)
response = child.communicate()[0]
return [int(pid) for pid in response.split()]
Your code is way more cluttered than necessary.
Replace (Not (X Is Nothing))
with X IsNot Nothing
and omit the outer parentheses:
If comp.Container IsNot Nothing AndAlso comp.Container.Components IsNot Nothing Then
For i As Integer = 0 To comp.Container.Components.Count() - 1
fixUIIn(comp.Container.Components(i), style)
Next
End If
Much more readable. … Also notice that I’ve removed the redundant Step 1
and the probably redundant .Item
.
But (as pointed out in the comments), index-based loops are out of vogue anyway. Don’t use them unless you absolutely have to. Use For Each
instead:
If comp.Container IsNot Nothing AndAlso comp.Container.Components IsNot Nothing Then
For Each component In comp.Container.Components
fixUIIn(component, style)
Next
End If
I have encountered the same problem and invested a whole day to find the way out but this is resolved by making the copy of .sql file and change the extension to .txt file and open the .txt file into chrome browser. I have seen the magic and file is opened in a browser.
Thanks and Best Regards,
As Dan Abramov said, if you want more advanced control over your async code, you might take a look at redux-saga.
This answer is a simple example, if you want better explanations on why redux-saga can be useful for your application, check this other answer.
The general idea is that Redux-saga offers an ES6 generators interpreter that permits you to easily write async code that looks like synchronous code (this is why you'll often find infinite while loops in Redux-saga). Somehow, Redux-saga is building its own language directly inside Javascript. Redux-saga can feel a bit difficult to learn at first, because you need basic understanding of generators, but also understand the language offered by Redux-saga.
I'll try here to describe here the notification system I built on top of redux-saga. This example currently runs in production.
Screenshot of my production app Stample.co
Here I named the notification a toast
but this is a naming detail.
function* toastSaga() {
// Some config constants
const MaxToasts = 3;
const ToastDisplayTime = 4000;
// Local generator state: you can put this state in Redux store
// if it's really important to you, in my case it's not really
let pendingToasts = []; // A queue of toasts waiting to be displayed
let activeToasts = []; // Toasts currently displayed
// Trigger the display of a toast for 4 seconds
function* displayToast(toast) {
if ( activeToasts.length >= MaxToasts ) {
throw new Error("can't display more than " + MaxToasts + " at the same time");
}
activeToasts = [...activeToasts,toast]; // Add to active toasts
yield put(events.toastDisplayed(toast)); // Display the toast (put means dispatch)
yield call(delay,ToastDisplayTime); // Wait 4 seconds
yield put(events.toastHidden(toast)); // Hide the toast
activeToasts = _.without(activeToasts,toast); // Remove from active toasts
}
// Everytime we receive a toast display request, we put that request in the queue
function* toastRequestsWatcher() {
while ( true ) {
// Take means the saga will block until TOAST_DISPLAY_REQUESTED action is dispatched
const event = yield take(Names.TOAST_DISPLAY_REQUESTED);
const newToast = event.data.toastData;
pendingToasts = [...pendingToasts,newToast];
}
}
// We try to read the queued toasts periodically and display a toast if it's a good time to do so...
function* toastScheduler() {
while ( true ) {
const canDisplayToast = activeToasts.length < MaxToasts && pendingToasts.length > 0;
if ( canDisplayToast ) {
// We display the first pending toast of the queue
const [firstToast,...remainingToasts] = pendingToasts;
pendingToasts = remainingToasts;
// Fork means we are creating a subprocess that will handle the display of a single toast
yield fork(displayToast,firstToast);
// Add little delay so that 2 concurrent toast requests aren't display at the same time
yield call(delay,300);
}
else {
yield call(delay,50);
}
}
}
// This toast saga is a composition of 2 smaller "sub-sagas" (we could also have used fork/spawn effects here, the difference is quite subtile: it depends if you want toastSaga to block)
yield [
call(toastRequestsWatcher),
call(toastScheduler)
]
}
And the reducer:
const reducer = (state = [],event) => {
switch (event.name) {
case Names.TOAST_DISPLAYED:
return [...state,event.data.toastData];
case Names.TOAST_HIDDEN:
return _.without(state,event.data.toastData);
default:
return state;
}
};
You can simply dispatch TOAST_DISPLAY_REQUESTED
events. If you dispatch 4 requests, only 3 notifications will be displayed, and the 4th one will appear a bit later once the 1st notification disappears.
Note that I don't specifically recommend dispatching TOAST_DISPLAY_REQUESTED
from JSX. You'd rather add another saga that listens to your already-existing app events, and then dispatch the TOAST_DISPLAY_REQUESTED
: your component that triggers the notification, does not have to be tightly coupled to the notification system.
My code is not perfect but runs in production with 0 bugs for months. Redux-saga and generators are a bit hard initially but once you understand them this kind of system is pretty easy to build.
It's even quite easy to implement more complex rules, like:
Honnestly, good luck implementing this kind of stuff properly with thunks.
Note you can do exactly the same kind of thing with redux-observable which is very similar to redux-saga. It's almost the same and is a matter of taste between generators and RxJS.
Your code was very close to working.
Try using a regular csv.writer rather than a DictWriter. The latter is mainly used for writing a list of dictionaries.
Here's some code that writes each key/value pair on a separate row:
import csv
somedict = dict(raymond='red', rachel='blue', matthew='green')
with open('mycsvfile.csv','wb') as f:
w = csv.writer(f)
w.writerows(somedict.items())
If instead you want all the keys on one row and all the values on the next, that is also easy:
with open('mycsvfile.csv','wb') as f:
w = csv.writer(f)
w.writerow(somedict.keys())
w.writerow(somedict.values())
Pro tip: When developing code like this, set the writer to w = csv.writer(sys.stderr)
so you can more easily see what is being generated. When the logic is perfected, switch back to w = csv.writer(f)
.
When the problem is in the recalculation of an IF condition, I add AND(ISDATE(NOW());condition)
so that the cell is forced to recalculate according to
what is set in the Calculation tab in Spreadsheet Settings as explained before.
This works because NOW
is one of the functions that is affected by the Calculation setting and ISDATE(NOW())
always returns TRUE
.
For example, in one of my sheets I had the following condition which I use to check whether a sheet with name stored in C1
is already created:
=IF(ISREF(INDIRECT(C$1&"!A1")); TRUE; FALSE)
In this case C1="February"
, so I expected the condition to become TRUE
when a sheet with this name was created, which didn't happen. To force it to update, I changed the Calculation setting and used:
=IF(AND( ISDATE(NOW()) ; ISREF(INDIRECT(C$1&"!A1")) ); TRUE; FALSE)
You can install other builds but not Appstore build.
From Xcode 8.2,drag and drop the build to simulator for the installation.
Building on Terry's simple answer I made this into a basic jQuery function
$.prototype.disableTab = function() {
this.each(function() {
$(this).attr('tabindex', '-1');
});
};
$('.unfocusable-element, .another-unfocusable-element').disableTab();
I know there are several good answers here but this is what I needed so I figured I'd add this code in case anyone else needs to return whatever status code and response body they wanted in 4.7.x with webAPI.
public class DuplicateResponseResult<TResponse> : IHttpActionResult
{
private TResponse _response;
private HttpStatusCode _statusCode;
private HttpRequestMessage _httpRequestMessage;
public DuplicateResponseResult(HttpRequestMessage httpRequestMessage, TResponse response, HttpStatusCode statusCode)
{
_httpRequestMessage = httpRequestMessage;
_response = response;
_statusCode = statusCode;
}
public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
{
var response = new HttpResponseMessage(_statusCode);
return Task.FromResult(_httpRequestMessage.CreateResponse(_statusCode, _response));
}
}
I usually use git on my linux machine, but at work I have to use Windows. I had the same problem when trying to commit the first commit in a Windows environment.
For those still facing this problem, I was able to resolve it as follows:
$ git commit --allow-empty -n -m "Initial commit".
Pycrypto has vulnerabilities assigned the CVE-2013-7459 number, and the repo hasn't accept PRs since June 23, 2014.
Pycryptodome is a drop-in replacement for the PyCrypto library, which exposes almost the same API as the old PyCrypto, see Compatibility with PyCrypto.
If you haven't install pycrypto yet, you can use pip install pycryptodome
to install pycryptodome in which you won't get Microsoft Visual C++ 14.0 issue.
You can use XMLHttpRequest, fetch API, ...
If you want to use XMLHttpRequest you can do the following
var xhr = new XMLHttpRequest();
xhr.open("POST", url, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
name: "Deska",
email: "[email protected]",
phone: "342234553"
}));
xhr.onload = function() {
var data = JSON.parse(this.responseText);
console.log(data);
};
Or if you want to use fetch API
fetch(url, {
method:"POST",
body: JSON.stringify({
name: "Deska",
email: "[email protected]",
phone: "342234553"
})
})
.then(result => {
// do something with the result
console.log("Completed with result:", result);
});
typescript needs to know that our var a
is going to ether be Number || String
export type StringOrNumber = number | string;
export function toString (v: StringOrNumber) {
return `${v}`;
}
export function toNumber (v: StringOrNumber) {
return Number(v);
}
export function toggle (v: StringOrNumber) {
return typeof v === "number" ? `${v}` : Number(v);
}
I was facing the same problem as Jon. TheLibzter put me on the right track, but the image that has to stay at the bottom of the sidebar was not included. So I made some adjustments...
Important:
Here's the css:
#container
{
margin: auto;
width: 940px;
}
#bodyLayout
{
position: relative;
width: 100%;
padding: 0;
}
#header
{
height: 95px;
background-color: blue;
color: white;
}
#sidebar
{
background-color: yellow;
}
#sidebarTopDiv
{
float: left;
width: 245px;
color: black;
}
#sidebarBottomDiv
{
position: absolute;
float: left;
bottom: 0;
width: 245px;
height: 100px;
background-color: green;
color: white;
}
#content
{
float: right;
min-height: 250px;
width: 695px;
background-color: White;
}
#footer
{
width: 940px;
height: 75px;
background-color: red;
color: white;
}
.clear
{
clear: both;
}
And here's the html:
<div id="container">
<div id="header">
This is your header!
</div>
<div id="bodyLayout">
<div id="sidebar">
<div id="sidebarTopDiv">
This is your sidebar!
</div>
<div id="content">
This is your content!<br />
The minimum height of the content is set to 250px so the div at the bottom of
the sidebar will not overlap the top part of the sidebar.
</div>
<div id="sidebarBottomDiv">
This is the div that will stay at the bottom of your footer!
</div>
<div class="clear" />
</div>
</div>
</div>
<div id="footer">
This is your footer!
</div>
A different answer if you need to save the output of your whole scrollback buffer from an already actively running screen:
Ctrl-a [ g SPACE G $ >.
This will save your whole buffer to /tmp/screen-exchange
.c : c file (where the real action is, in general)
.h : header file (to be included with a preprocessor #include
directive). Contains stuff that is normally deemed to be shared with other parts of your code, like function prototypes, #define'd stuff, extern declaration for global variables (oh, the horror) and the like.
Technically, you could put everything in a single file. A whole C program. million of lines. But we humans tend to organize things. So you create different C files, each one containing particular functions. That's all nice and clean. Then suddenly you realize that a declaration you have into a given C file should exist also in another C file. So you would duplicate them. The best is therefore to extract the declaration and put it into a common file, which is the .h
For example, in the cs50.h you find what are called "forward declarations" of your functions. A forward declaration is a quick way to tell the compiler how a function should be called (e.g. what input params) and what it returns, so it can perform proper checking (for example if you call a function with the wrong number of parameters, it will complain).
Another example. Suppose you write a .c file containing a function performing regular expression matching. You want your function to accept the regular expression, the string to match, and a parameter that tells if the comparison has to be case insensitive.
in the .c you will therefore put
bool matches(string regexp, string s, int flags) { the code }
Now, assume you want to pass the following flags:
0: if the search is case sensitive
1: if the search is case insensitive
And you want to keep yourself open to new flags, so you did not put a boolean. playing with numbers is hard, so you define useful names for these flags
#define MATCH_CASE_SENSITIVE 0
#define MATCH_CASE_INSENSITIVE 1
This info goes into the .h, because if any program wants to use these labels, it has no way of knowing them unless you include the info. Of course you can put them in the .c, but then you would have to include the .c code (whole!) which is a waste of time and a source of trouble.
To detect and locate memory leaks for long running processes, e.g. in production environments, you can now use stackimpact. It uses tracemalloc underneath. More info in this post.
You can also export the database and then use a program like notepad++ to replace words and then inmport aigain.
Double check your .gitignore
file to make sure that the file is able to be seen by Git. Likewise, there is a file .git/info/exclude
that 'excludes' files/directories from the project, just like a .gitignore
file would.
You can do it by making the background into a pattern:
<defs>
<pattern id="img1" patternUnits="userSpaceOnUse" width="100" height="100">
<image href="wall.jpg" x="0" y="0" width="100" height="100" />
</pattern>
</defs>
Adjust the width and height according to your image, then reference it from the path like this:
<path d="M5,50
l0,100 l100,0 l0,-100 l-100,0
M215,100
a50,50 0 1 1 -100,0 50,50 0 1 1 100,0
M265,50
l50,100 l-100,0 l50,-100
z"
fill="url(#img1)" />
$_SERVER['HTTP_X_REQUESTED_WITH']
RFC3875, 4.1.18:
Meta-variables with names beginning with
HTTP_
contain values read from the client request header fields, if the protocol used is HTTP. The HTTP header field name is converted to upper case, has all occurrences of-
replaced with_
and hasHTTP_
prepended to give the meta-variable name.
NOTE: Hopefully this changed in the latest version.
You cannot copy data between a MongoDB 4.0 mongod instance (regardless of the FCV value) and a MongoDB 3.4 and earlier mongod instance. https://docs.mongodb.com/v4.0/reference/method/db.copyDatabase/
ALERT: Hey folks just be careful while copying the database, if you don't want to mess up the different collections under single database.
The following shows you how to rename
> show dbs;
testing
games
movies
To rename you use the following syntax
db.copyDatabase("old db name","new db name")
Example:
db.copyDatabase('testing','newTesting')
Now you can safely delete the old db by the following way
use testing;
db.dropDatabase(); //Here the db **testing** is deleted successfully
Now just think what happens if you try renaming the new database name with existing database name
Example:
db.copyDatabase('testing','movies');
So in this context all the collections (tables) of testing will be copied to movies database.
If you want to allow a user to add a bunch of new MyObjects to the list, you can do it with a for loop: Let's say I'm creating an ArrayList of Rectangle objects, and each Rectangle has two parameters- length and width.
//here I will create my ArrayList:
ArrayList <Rectangle> rectangles= new ArrayList <>(3);
int length;
int width;
for(int index =0; index <3;index++)
{JOptionPane.showMessageDialog(null, "Rectangle " + (index + 1));
length = JOptionPane.showInputDialog("Enter length");
width = JOptionPane.showInputDialog("Enter width");
//Now I will create my Rectangle and add it to my rectangles ArrayList:
rectangles.add(new Rectangle(length,width));
//This passes the length and width values to the rectangle constructor,
which will create a new Rectangle and add it to the ArrayList.
}
From the command line, use the --testNamePattern
or -t
flag:
jest -t 'fix-order-test'
This will only run tests that match the test name pattern you provide. It's in the Jest documentation.
Another way is to run tests in watch mode, jest --watch
, and then press P to filter the tests by typing the test file name or T to run a single test name.
If you have an it
inside of a describe
block, you have to run
jest -t '<describeString> <itString>'
Month
enumYou could use the Month
enum. This enum is defined as part of the new java.time framework built into Java 8 and later.
int monthNumber = 10;
Month.of(monthNumber).name();
The output would be:
OCTOBER
Localize to a language beyond English by calling getDisplayName
on the same Enum.
String output = Month.OCTOBER.getDisplayName ( TextStyle.FULL , Locale.CANADA_FRENCH );
output:
octobre
Hi guys I am doing something like this. And its works for me
create a Boolean field in shared preference.Default value is true {isFirstTime:true} after first time set it to false. Nothing can be simple and relaiable than this in android system.
If you use Firebug, you can use console.log to output an object and get a hyperlinked, explorable item in the console.
Bulk imports seems to perform best if you can chunk your INSERT/UPDATE statements. A value of 10,000 or so has worked well for me on a table with only a few rows, YMMV...
You can write your own touch.
//touch.cpp
#include <fstream>
#include <iostream>
int main(int argc, char ** argv;)
{
if(argc !=2)
{
std::cerr << "Must supply a filename as argument" << endl;
return 1;
}
std::ofstream foo(argv[1]);
foo.close();
return 0;
}
You have to replace string line
QString line = in.readLine();
into while:
QFile file("/home/hamad/lesson11.txt");
if(!file.open(QIODevice::ReadOnly)) {
QMessageBox::information(0, "error", file.errorString());
}
QTextStream in(&file);
while(!in.atEnd()) {
QString line = in.readLine();
QStringList fields = line.split(",");
model->appendRow(fields);
}
file.close();
One solution that I've found is that you should have to change the .Net Framework back to v2.0 by Right Clicking on the site that you have manager under the Application Pools from the Advance Settings.
I ran into similar problem a while back and what was happening in my case was the outer recycler view was working perfectly fine but the the adapter of inner/second recycler view had minor issues all the methods like constructor got initiated and even getCount() method was being called, although the final methods responsible to generate view ie..
1. onBindViewHolder() methods never got called. --> Problem 1.
2. When it got called finally it never show the list items/rows of recycler view. --> Problem 2.
Reason why this happened :: When you put a recycler view inside another recycler view, then height of the first/outer recycler view is not auto adjusted. It is defined when the first/outer view is created and then it remains fixed. At that point your second/inner recycler view has not yet loaded its items and thus its height is set as zero and never changes even when it gets data. Then when onBindViewHolder() in your second/inner recycler view is called, it gets items but it doesn't have the space to show them because its height is still zero. So the items in the second recycler view are never shown even when the onBindViewHolder() has added them to it.
Solution :: you have to create your custom LinearLayoutManager for the second recycler view and that is it.
To create your own LinearLayoutManager: Create a Java class with the name CustomLinearLayoutManager
and paste the code below into it. NO CHANGES REQUIRED
public class CustomLinearLayoutManager extends LinearLayoutManager {
private static final String TAG = CustomLinearLayoutManager.class.getSimpleName();
public CustomLinearLayoutManager(Context context) {
super(context);
}
public CustomLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
super(context, orientation, reverseLayout);
}
private int[] mMeasuredDimension = new int[2];
@Override
public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) {
final int widthMode = View.MeasureSpec.getMode(widthSpec);
final int heightMode = View.MeasureSpec.getMode(heightSpec);
final int widthSize = View.MeasureSpec.getSize(widthSpec);
final int heightSize = View.MeasureSpec.getSize(heightSpec);
int width = 0;
int height = 0;
for (int i = 0; i < getItemCount(); i++) {
measureScrapChild(recycler, i, View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
mMeasuredDimension);
if (getOrientation() == HORIZONTAL) {
width = width + mMeasuredDimension[0];
if (i == 0) {
height = mMeasuredDimension[1];
}
} else {
height = height + mMeasuredDimension[1];
if (i == 0) {
width = mMeasuredDimension[0];
}
}
}
switch (widthMode) {
case View.MeasureSpec.EXACTLY:
width = widthSize;
case View.MeasureSpec.AT_MOST:
case View.MeasureSpec.UNSPECIFIED:
}
switch (heightMode) {
case View.MeasureSpec.EXACTLY:
height = heightSize;
case View.MeasureSpec.AT_MOST:
case View.MeasureSpec.UNSPECIFIED:
}
setMeasuredDimension(width, height);
}
private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,
int heightSpec, int[] measuredDimension) {
try {
View view = recycler.getViewForPosition(position);
if (view != null) {
RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();
int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,
getPaddingLeft() + getPaddingRight(), p.width);
int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,
getPaddingTop() + getPaddingBottom(), p.height);
view.measure(childWidthSpec, childHeightSpec);
measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;
measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;
recycler.recycleView(view);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
I am working with an API with a lot of functions get as an input a char*
.
I have created a small class to face this kind of problem, I have implemented the RAII idiom.
class DeepString
{
DeepString(const DeepString& other);
DeepString& operator=(const DeepString& other);
char* internal_;
public:
explicit DeepString( const string& toCopy):
internal_(new char[toCopy.size()+1])
{
strcpy(internal_,toCopy.c_str());
}
~DeepString() { delete[] internal_; }
char* str() const { return internal_; }
const char* c_str() const { return internal_; }
};
And you can use it as:
void aFunctionAPI(char* input);
// other stuff
aFunctionAPI("Foo"); //this call is not safe. if the function modified the
//literal string the program will crash
std::string myFoo("Foo");
aFunctionAPI(myFoo.c_str()); //this is not compiling
aFunctionAPI(const_cast<char*>(myFoo.c_str())); //this is not safe std::string
//implement reference counting and
//it may change the value of other
//strings as well.
DeepString myDeepFoo(myFoo);
aFunctionAPI(myFoo.str()); //this is fine
I have called the class DeepString
because it is creating a deep and unique copy (the DeepString
is not copyable) of an existing string.
You can use 'onclick' attribute like this :
<a ... href="javascript: onclick();" ...>...</a>
You are having this problem because you are attempting to console log app.address() before the connection has been made. You just have to be sure to console log after the connection is made, i.e. in a callback or after an event signaling that the connection has been made.
Fortunately, the 'listening' event is emitted by the server after the connection is made so just do this:
var express = require('express');
var http = require('http');
var app = express();
var server = http.createServer(app);
app.get('/', function(req, res) {
res.send("Hello World!");
});
server.listen(3000, 'localhost');
server.on('listening', function() {
console.log('Express server started on port %s at %s', server.address().port, server.address().address);
});
This works just fine in nodejs v0.6+ and Express v3.0+.
Easiest and simplest way to change date format in php
In PHP any date can be converted into the required date format using different scenarios for example to change any date format into Day, Date Month Year
$newdate = date("D, d M Y", strtotime($date));
It will show date in the following very well format
Mon, 16 Nov 2020
And if you have time as well in your existing date format for example if you have datetime format of SQL 2020-11-11 22:00:00 you can convert this into the required date format using the following
$newdateformat = date("D, d M Y H:i:s", strtotime($oldateformat));
It will show date in following well looking format
Sun, 15 Nov 2020 16:26:00
os.path.realpath(__file__)
will give you the path of the current file, resolving any symlinks in the path. This works fine on my mac.
Hi I am also facing this issue and I solve this using below example code
For j = 1 To MyTemplte.Sheets.Count
If MyTemplte.Sheets(j).Visible = 0 Then
GoTo DoNothing
End If
'process for this for loop
DoNothing:
Next j
Like this:
#!/bin/bash
a=2462620
b=2462620
if [ "$a" -eq "$b" ]; then
echo "They're equal";
fi
Integers can be compared with these operators:
-eq # equal
-ne # not equal
-lt # less than
-le # less than or equal
-gt # greater than
-ge # greater than or equal
See this cheatsheet: https://devhints.io/bash#conditionals
this.http.get<any>('http://192.168.1.15:4000/GetPriority')
.subscribe(response =>
{
this.records=JSON.stringify(response) // impoprtant
console.log("records"+this.records)
});
You could drop any indexes on the table, then do your insert, and then recreate the indexes.
Just to mention, you can also use the default a theme like android.R.style.Theme_DeviceDefault_Light_Dialog
instead.
new DatePickerDialog(MainActivity.this, android.R.style.Theme_DeviceDefault_Light_Dialog, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
//DO SOMETHING
}
}, 2015, 02, 26).show();
I arrived here because I thought I should check in SO if there are adequate answers, after a syntax error that gave me this error, or if I could possibly post an answer myself.
OK, the answers here explain what this error is, so not much more to say, but nevertheless I will give my 2 cents using my words:
This error is caused by the fact that you basically generate a new table with your subquery for the FROM
command.
That's what a derived table
is, and as such, it needs to have an alias
(actually a name reference to it).
So given the following hypothetical query:
SELECT id, key1
FROM (
SELECT t1.ID id, t2.key1 key1, t2.key2 key2, t2.key3 key3
FROM table1 t1
LEFT JOIN table2 t2 ON t1.id = t2.id
WHERE t2.key3 = 'some-value'
) AS tt
So, at the end, the whole subquery inside the FROM
command will produce the table that is aliased as tt
and it will have the following columns id
, key1
, key2
, key3
.
So, then with the initial SELECT
from that table we finally select the id
and key1
from the tt
.
When you want to count the frequency of categorical data in a column in pandas dataFrame use: df['Column_Name'].value_counts()
-Source.
Try
java -cp .:mail-1.4.1.jar JavaxMailHTML
no need to have manifest
file.
//This delegate can be used to point to methods
//which return void and take a string.
public delegate void MyDelegate(string foo);
//This event can cause any method which conforms
//to MyEventHandler to be called.
public event MyDelegate MyEvent;
//Here is some code I want to be executed
//when SomethingHappened fires.
void MyEventHandler(string foo)
{
//Do some stuff
}
//I am creating a delegate (pointer) to HandleSomethingHappened
//and adding it to SomethingHappened's list of "Event Handlers".
myObj.MyEvent += new MyDelegate (MyEventHandler);
As of PHP 5.6 @$filePath
will not work in CURLOPT_POSTFIELDS
without CURLOPT_SAFE_UPLOAD
being set and it is completely removed in PHP 7. You will need to use a CurlFile object, RFC here.
$fields = [
'name' => new \CurlFile($filePath, 'image/png', 'filename.png')
];
curl_setopt($resource, CURLOPT_POSTFIELDS, $fields);
Your return data
approach is correct, that's an example of promise chaining. If you return a promise from your .then()
callback, JavaScript will resolve that promise and pass the data to the next then()
callback.
Just be careful and make sure you handle errors with .catch()
. Promise.all()
rejects as soon as one of the promises in the array rejects.
Git now ships with a subcommand 'git request-pull' [-p] <start> <url> [<end>]
You can see the docs here
You may find this useful but it is not exactly the same as GitHub's feature.
This worked for me.
Single-clicking a row triggers the code-behind.
XAML:
<ListView x:Name="MyListView" MouseLeftButtonUp="MyListView_MouseLeftButtonUp">
<GridView>
<!-- Declare GridViewColumns. -->
</GridView>
</ListView.View>
Code-behind:
private void MyListView_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
System.Windows.Controls.ListView list = (System.Windows.Controls.ListView)sender;
MyClass selectedObject = (MyClass)list.SelectedItem;
// Do stuff with the selectedObject.
}
There is no trigger to perform code when the app is deleted from the device. Access to the keychain is dependant on the provisioning profile that is used to sign the application. Therefore no other applications would be able to access this information in the keychain.
It does not help with you aim to remove the password in the keychain when the user deletes application from the device but it should give you some comfort that the password is not accessible (only from a re-install of the original application).
As long as the web service methods and underlying exposed classes do not change, it's fairly trivial. With Visual Studio 2005 (and newer), adding a web reference creates an app.config (or web.config, for web apps) section that has this URL. All you have to do is edit the app.config file to reflect the desired URL.
In our project, our simple approach was to just have the app.config entries commented per environment type (development, testing, production). So we just uncomment the entry for the desired environment type. No special coding needed there.
The main difference between the web containers and application server is that most web containers such as Apache Tomcat implements only basic JSR like Servlet, JSP, JSTL wheres Application servers implements the entire Java EE Specification. Every application server contains web container.
The CSS :active
state means the active state of the clicked link - the moment when you clicked on it, but not released the mouse button yet, for example. It doesn't know which page you're on and can't apply any styles to the menu items.
To fix your problem you have to create a class and add it manually to the current page's menu:
a.active { color: #f00 }
<ul>
<li><a href="index.php" class="active">HOME</a></li>
<li><a href="two.php">PORTFOLIO</a></li>
<li><a href="three.php">ABOUT</a></li>
<li><a href="four.php">CONTACT</a></li>
<li><a href="five.php">SHOP</a></li>
</ul>
It's a trade off !
pros of each one :
- (void)scrollViewDidScroll:(UIScrollView *)aScrollView
{
[aScrollView setContentOffset: CGPointMake(aScrollView.contentOffset.x,0)];
}
you must have confirmed to UIScrollViewDelegate
aScrollView.delegate = self;
Use Timer for every second...
new Timer().scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
//your method
}
}, 0, 1000);//put here time 1000 milliseconds=1 second
in C++11 you may use Copy()
that works for std containers
template <typename Container1, typename Container2>
auto Copy(Container1& c1, Container2& c2)
-> decltype(c2.begin())
{
auto it1 = std::begin(c1);
auto it2 = std::begin(c2);
while (it1 != std::end(c1)) {
*it2++ = *it1++;
}
return it2;
}
You can try this
$('div.easy_editor').css({'border-width':'9px', 'border-style':'solid', 'border-color':'red'});
The $('div.easy_editor')
refers to a collection of all divs that have the class easy editor already. There is no need to use each() unless there was some function that you wanted to run on each. The css() method actually applies to all the divs you find.
I have faced same issue after install macOS Catalina. I had try below command and its working.
sudo gem update
Inspired by jpmottin in this question, here's the one line code:
var dateStr = '2019-01-01';_x000D_
var days = 1;_x000D_
_x000D_
var result = new Date(new Date(dateStr).setDate(new Date(dateStr).getDate() + days));_x000D_
_x000D_
document.write('Date: ', result); // Wed Jan 02 2019 09:00:00 GMT+0900 (Japan Standard Time)_x000D_
document.write('<br />');_x000D_
document.write('Trimmed Date: ', result.toISOString().substr(0, 10)); // 2019-01-02
_x000D_
Hope this helps
When you don't give a prototype for the function before using it, C assumes that it takes any number of parameters and returns an int. So when you first try to use do_something, that's the type of function the compiler is looking for. Doing this should produce a warning about an "implicit function declaration".
So in your case, when you actually do declare the function later on, C doesn't allow function overloading, so it gets pissy because to it you've declared two functions with different prototypes but with the same name.
Short answer: declare the function before trying to use it.
Try creating a javascript function which runs this:
document.getElementById("youriframeid").contentWindow.location.reload(true);
Or maybe use an HTML workaround:
<html>
<body>
<center>
<a href="pagename.htm" target="middle">Refresh iframe</a>
<p>
<iframe src="pagename.htm" name="middle">
</p>
</center>
</body>
</html>
Both might be what you're looking for...
This solved my problem in version 3.5.2.
$remote.empty().append(new Option()).trigger('change');
According to this issue you need an empty option inside select tag for the placeholder to show up.
An abstract class cannot be instantiated by definition. In order to use this class, you must create a concrete subclass which implements all virtual functions of the class. In this case, you most likely have not implemented all the virtual functions declared in Light
. This means that AmbientOccluder
defaults to an abstract class. For us to further help you, you should include the details of the Light
class.
Just because I can:
function pathName(url, a) {
return (a = document.createElement('a'), a.href = url, a.pathname); //optionally, remove leading '/'
}
pathName("http://www.site.com/234234234") -> "/234234234"
You just CAST()
this way
SELECT cast(yourNumber as varchar(10))
FROM yourTable
Then if you want to JOIN
based on it, you can use:
SELECT *
FROM yourTable t1
INNER JOIN yourOtherTable t2
on cast(t1.yourNumber as varchar(10)) = t2.yourString
<ctype.h>
includes a range of functions for determining if a char
represents a letter or a number, such as isalpha
, isdigit
and isalnum
.
The reason why int a = (int)theChar
won't do what you want is because a
will simply hold the integer value that represents a specific character. For example the ASCII number for '9'
is 57, and for 'a'
it's 97.
Also for ASCII:
if (theChar >= '0' && theChar <= '9')
if (theChar >= 'A' && theChar <= 'Z' || theChar >= 'a' && theChar <= 'z')
Take a look at an ASCII table to see for yourself.
You can use ViewChild
<child-tag #varName></child-tag>
@ViewChild('varName') someElement;
ngAfterViewInit() {
someElement...
}
where varName
is a template variable added to the element. Alternatively, you can query by component or directive type.
There are alternatives like ViewChildren
, ContentChild
, ContentChildren
.
@ViewChildren
can also be used in the constructor.
constructor(@ViewChildren('var1,var2,var3') childQuery:QueryList)
The advantage is that the result is available earlier.
See also http://www.bennadel.com/blog/3041-constructor-vs-property-querylist-injection-in-angular-2-beta-8.htm for some advantages/disadvantages of using the constructor or a field.
Note: @Query()
is the deprecated predecessor of @ContentChildren()
Update
Query
is currently just an abstract base class. I haven't found if it is used at all https://github.com/angular/angular/blob/2.1.x/modules/@angular/core/src/metadata/di.ts#L145
Dimension a variable, basically you are telling the compiler that you are going to need a variable of this type at some point.
You can use DateValue
to convert your string to a date in this instance
Dim c As Range
For Each c In ActiveSheet.UsedRange.columns("A").Cells
c.Value = DateValue(c.Value)
Next c
It can convert yyyy-mm-dd
format string directly into a native Excel date value.
Thing is $@
will include the entire (relative) path to the source file which is in turn used to construct the object name (and thus its relative path)
We use:
#####################
# rules to build the object files
$(OBJDIR_1)/%.o: %.c
@$(ECHO) "$< -> $@"
@test -d $(OBJDIR_1) || mkdir -pm 775 $(OBJDIR_1)
@test -d $(@D) || mkdir -pm 775 $(@D)
@-$(RM) $@
$(CC) $(CFLAGS) $(CFLAGS_1) $(ALL_FLAGS) $(ALL_DEFINES) $(ALL_INCLUDEDIRS:%=-I%) -c $< -o $@
This creates an object directory with name specified in $(OBJDIR_1)
and subdirectories according to subdirectories in source.
For example (assume objs as toplevel object directory), in Makefile:
widget/apple.cpp
tests/blend.cpp
results in following object directory:
objs/widget/apple.o
objs/tests/blend.o
Following that this question has been already given a good answer, in WinForms we can also set a Custom Format to the DateTimePicker Format property as Vivek said, this allow us to display the date/time in the specified format string within the DateTimePicker, then, it will be simple just as we do to get text from a TextBox.
// Set the Format type and the CustomFormat string.
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "yyyy/MM/dd";
We are now able to get Date only easily by getting the Text from the DateTimePicker:
MessageBox.Show("Selected Date: " + dateTimePicker1.Text, "DateTimePicker", MessageBoxButtons.OK, MessageBoxIcon.Information);
NOTE: If you are planning to insert Date only data to a date column type in SQL, see this documentation related to the supported String Literal Formats for date. You can not insert a date in the format string ydm because is not supported:
dateTimePicker1.CustomFormat = "yyyy/dd/MM";
var qr = "INSERT INTO tbl VALUES (@dtp)";
using (var insertCommand = new SqlCommand..
{
try
{
insertCommand.Parameters.AddWithValue("@dtp", dateTimePicker1.Text);
con.Open();
insertCommand.ExecuteScalar();
}
catch (Exception ex)
{
MessageBox.Show("Exception message: " + ex.Message, "DateTimePicker", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
the above code ends in the following Exception:
Be aware. Cheers.
In iOS8 sizeWithFont has been deprecated, please refer to
CGSize yourLabelSize = [yourLabel.text sizeWithAttributes:@{NSFontAttributeName : [UIFont fontWithName:yourLabel.font size:yourLabel.fontSize]}];
You can add all the attributes you want in sizeWithAttributes. Other attributes you can set:
- NSForegroundColorAttributeName
- NSParagraphStyleAttributeName
- NSBackgroundColorAttributeName
- NSShadowAttributeName
and so on. But probably you won't need the others
If you look in your installation's bin directory you will see catalina.sh or .bat scripts. If you look in these you will see that they run a setenv.sh or setenv.bat script respectively, if it exists, to set environment variables. The relevant environment variables are described in the comments at the top of catalina.sh/bat. To use them create, for example, a file $CATALINA_HOME/bin/setenv.sh with contents
export JAVA_OPTS="-server -Xmx512m"
For Windows you will need, in setenv.bat, something like
set JAVA_OPTS=-server -Xmx768m
Original answer here
After you run startup.bat
, you can easily confirm the correct settings have been applied provided you have turned @echo
on somewhere in your catatlina.bat
file (a good place could be immediately after echo Using CLASSPATH: "%CLASSPATH%"
):
This thread seems to answer your question : simultaneous-read-write-a-file
Basically, what you need is to declare two FileStream, one for read operations, the other for write operations. Writer Filestream needs to open your file in 'Append' mode.
Maybe I missed it, but I couldn't find a complete answer on this page to the original question(s) because variables are not further discussed here. So I had to go on searching.
Since I'm not yet allowed to comment, let me add my conclusion here. I'm sure I was not the only one interested in it when accessing this page:
>>>myString = 'Hello World'
>>>end = 5
>>>myString[2:end]
'llo'
If you leave the first part, you get
>>>myString[:end]
'Hello'
And if you left the : in the middle as well you got the simplest substring, which would be the 5th character (count starting with 0, so it's the blank in this case):
>>>myString[end]
' '
I had this issue and it was due to the .Net framework version. I had upgraded the build to framework 4.0 but this seemed to affect some comms dlls the application was using. I rolled back to framework 3.5 and it worked fine.
For the record:
"Data at the root level is invalid" means that you have attempted to parse something that is not an XML document. It doesn't even start to look like an XML document. It usually means just what you found: you're parsing something like the string "C:\inetpub\wwwroot\mysite\officelist.xml".
Kind of a mix:
Set it in your layout file :-
<CheckBox android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="new checkbox"
android:background="@drawable/checkbox_background"
android:button="@drawable/checkbox" />
where the @drawable/checkbox will look like:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:state_focused="true"
android:drawable="@drawable/checkbox_on_background_focus_yellow" />
<item android:state_checked="false" android:state_focused="true"
android:drawable="@drawable/checkbox_off_background_focus_yellow" />
<item android:state_checked="false"
android:drawable="@drawable/checkbox_off_background" />
<item android:state_checked="true"
android:drawable="@drawable/checkbox_on_background" />
</selector>
Had the same problem. A colleague solved this with jQuery.Globalize.
<script src="/Scripts/jquery.validate.js" type="text/javascript"></script>
<script src="/Scripts/jquery.globalize/globalize.js" type="text/javascript"></script>
<script src="/Scripts/jquery.globalize/cultures/globalize.culture.nl.js"></script>
<script type="text/javascript">
var lang = 'nl';
$(function () {
Globalize.culture(lang);
});
// fixing a weird validation issue with dates (nl date notation) and Google Chrome
$.validator.methods.date = function(value, element) {
var d = Globalize.parseDate(value);
return this.optional(element) || !/Invalid|NaN/.test(d);
};
</script>
I am using jQuery Datepicker for selecting the date.
The IP addresses have changed again.
github publishes the list of used IP addresses here so you can check the IP address in your message against github's list:
https://help.github.com/articles/about-github-s-ip-addresses/
Or more precisely:
It looks like this (as I write this answer!):
verifiable_password_authentication true
github_services_sha "4159703d573ee6f602e304ed25b5862463a2c73d"
hooks
0 "192.30.252.0/22"
1 "185.199.108.0/22"
git
0 "192.30.252.0/22"
1 "185.199.108.0/22"
2 "18.195.85.27/32"
3 "18.194.104.89/32"
4 "35.159.8.160/32"
pages
0 "192.30.252.153/32"
1 "192.30.252.154/32"
importer
0 "54.87.5.173"
1 "54.166.52.62"
2 "23.20.92.3"
If you are unsure whether your IP address is contained in the above list use an CIDR calculator like http://www.subnet-calculator.com/cidr.php to show the valid IP range.
E. g. for 140.82.112.0/20
the IP range is 140.82.112.0
- 140.82.127.255
You should get the awaiter (GetAwaiter()
) and end the wait for the completion of the asynchronous task (GetResult()
).
string code = GenerateCodeAsync().GetAwaiter().GetResult();
Here is the fastest method I've evolved over a decade for my large-scale NLP app. I have variations for IEnumerable<T>
and other input types, with and without separators of different types (Char
, String
), but here I show the simple case of concatenating all strings in an array into a single string, with no separator. Latest version here is developed and unit-tested on C# 7 and .NET 4.7.
There are two keys to higher performance; the first is to pre-compute the exact total size required. This step is trivial when the input is an array as shown here. For handling IEnumerable<T>
instead, it is worth first gathering the strings into a temporary array for computing that total (The array is required to avoid calling ToString()
more than once per element since technically, given the possibility of side-effects, doing so could change the expected semantics of a 'string join' operation).
Next, given the total allocation size of the final string, the biggest boost in performance is gained by building the result string in-place. Doing this requires the (perhaps controversial) technique of temporarily suspending the immutability of a new String
which is initially allocated full of zeros. Any such controversy aside, however...
...note that this is the only bulk-concatenation solution on this page which entirely avoids an extra round of allocation and copying by the
String
constructor.
Complete code:
/// <summary>
/// Concatenate the strings in 'rg', none of which may be null, into a single String.
/// </summary>
public static unsafe String StringJoin(this String[] rg)
{
int i;
if (rg == null || (i = rg.Length) == 0)
return String.Empty;
if (i == 1)
return rg[0];
String s, t;
int cch = 0;
do
cch += rg[--i].Length;
while (i > 0);
if (cch == 0)
return String.Empty;
i = rg.Length;
fixed (Char* _p = (s = new String(default(Char), cch)))
{
Char* pDst = _p + cch;
do
if ((t = rg[--i]).Length > 0)
fixed (Char* pSrc = t)
memcpy(pDst -= t.Length, pSrc, (UIntPtr)(t.Length << 1));
while (pDst > _p);
}
return s;
}
[DllImport("MSVCR120_CLR0400", CallingConvention = CallingConvention.Cdecl)]
static extern unsafe void* memcpy(void* dest, void* src, UIntPtr cb);
I should mention that this code has a slight modification from what I use myself. In the original, I call the cpblk IL instruction from C# to do the actual copying. For simplicity and portability in the code here, I replaced that with P/Invoke memcpy
instead, as you can see. For highest performance on x64 (but maybe not x86) you may want to use the cpblk method instead.
Hi I'm also relatively new but I can give you basic help.
UPDATE 12.01.2016:
The bold line is the current branch.
You can also just double click a branch to use checkout.
And here some helpful links:
I use a single _version.py
file as the "once cannonical place" to store version information:
It provides a __version__
attribute.
It provides the standard metadata version. Therefore it will be detected by pkg_resources
or other tools that parse the package metadata (EGG-INFO and/or PKG-INFO, PEP 0345).
It doesn't import your package (or anything else) when building your package, which can cause problems in some situations. (See the comments below about what problems this can cause.)
There is only one place that the version number is written down, so there is only one place to change it when the version number changes, and there is less chance of inconsistent versions.
Here is how it works: the "one canonical place" to store the version number is a .py file, named "_version.py" which is in your Python package, for example in myniftyapp/_version.py
. This file is a Python module, but your setup.py doesn't import it! (That would defeat feature 3.) Instead your setup.py knows that the contents of this file is very simple, something like:
__version__ = "3.6.5"
And so your setup.py opens the file and parses it, with code like:
import re
VERSIONFILE="myniftyapp/_version.py"
verstrline = open(VERSIONFILE, "rt").read()
VSRE = r"^__version__ = ['\"]([^'\"]*)['\"]"
mo = re.search(VSRE, verstrline, re.M)
if mo:
verstr = mo.group(1)
else:
raise RuntimeError("Unable to find version string in %s." % (VERSIONFILE,))
Then your setup.py passes that string as the value of the "version" argument to setup()
, thus satisfying feature 2.
To satisfy feature 1, you can have your package (at run-time, not at setup time!) import the _version file from myniftyapp/__init__.py
like this:
from _version import __version__
Here is an example of this technique that I've been using for years.
The code in that example is a bit more complicated, but the simplified example that I wrote into this comment should be a complete implementation.
Here is example code of importing the version.
If you see anything wrong with this approach, please let me know.
Create a folder named fonts in the assets folder and add the snippet from the below link.
Typeface tf = Typeface.createFromAsset(getApplicationContext().getAssets(),"fonts/fontname.ttf");
textview.setTypeface(tf);
Native functions of array are sometimes 3X - 5X times slower than normal loops. Plus native functions wont work in all the browsers so there is a compatibility issues.
My Code:
<script>
var obj = [];
function checkName(name) {
// declarations
var flag = 0;
var len = obj.length;
var i = 0;
var id = 1;
// looping array
for (i; i < len; i++) {
// if name matches
if (name == obj[i]['username']) {
flag = 1;
break;
} else {
// increment the id by 1
id = id + 1;
}
}
// if flag = 1 then name exits else push in array
if (flag == 0) {
// new entry push in array
obj.push({'id':id, 'username': name});
}
}
// function end
checkName('abc');
</script>
This way you can achieve result faster.
Note: I have not checked if parameter passed is empty or not, if you want you can put a check on it or write a regular expression for particular validation.
For Vb.Net Framework 4.0, U can use:
Alert("your message here", Boolean)
The Boolean here can be True or False. True If you want to close the window right after, False If you want to keep the window open.