The easiest way would probably be to put your web resources into the assets folder then call:
webView.loadUrl("file:///android_asset/filename.html");
For Complete Communication between Java and Webview See This
Update: The assets folder is usually the following folder:
<project>/src/main/assets
This can be changed in the asset folder configuration setting in your <app>.iml
file as:
<option name=”ASSETS_FOLDER_RELATIVE_PATH” value=”/src/main/assets” />
See Article Where to place the assets folder in Android Studio
I'm working with loading images for this answer and I want them to be scaled to the device's width. I find that, for older phones with versions less than API 19 (KitKat), the behavior for Brian's answer isn't quite as I like it. It puts a lot of whitespace around some images on older phones, but works on my newer one. Here is my alternative, with help from this answer: Can Android's WebView automatically resize huge images? The layout algorithm SINGLE_COLUMN
is deprecated, but it works and I feel like it is appropriate for working with older webviews.
WebSettings settings = webView.getSettings();
// Image set to width of device. (Must be done differently for API < 19 (kitkat))
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
if (!settings.getLayoutAlgorithm().equals(WebSettings.LayoutAlgorithm.SINGLE_COLUMN))
settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
} else {
if (!settings.getLoadWithOverviewMode()) settings.setLoadWithOverviewMode(true);
if (!settings.getUseWideViewPort()) settings.setUseWideViewPort(true);
}
Solution:
Add the below line in your application
tag:
android:usesCleartextTraffic="true"
As shown below:
<application
....
android:usesCleartextTraffic="true"
....>
UPDATE: If you have network security config such as: android:networkSecurityConfig="@xml/network_security_config"
No Need to set clear text traffic to true as shown above, instead use the below code:
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
....
....
</domain-config>
<base-config cleartextTrafficPermitted="false"/>
</network-security-config>
Set the cleartextTrafficPermitted
to true
Hope it helps.
Ive modifiet Lukas Knuth's solution a little:
1) There's no need to subclass the webview,
2) the code will crash during bytecode verification on some Android 1.6 devices if you don't put nonexistant methods in seperate classes
3) Zoom controls will still appear if the user scrolls up/down a page. I simply set the zoom controller container to visibility GONE
wv.getSettings().setSupportZoom(true);
wv.getSettings().setBuiltInZoomControls(true);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
// Use the API 11+ calls to disable the controls
// Use a seperate class to obtain 1.6 compatibility
new Runnable() {
public void run() {
wv.getSettings().setDisplayZoomControls(false);
}
}.run();
} else {
final ZoomButtonsController zoom_controll =
(ZoomButtonsController) wv.getClass().getMethod("getZoomButtonsController").invoke(wv, null);
zoom_controll.getContainer().setVisibility(View.GONE);
}
use like this:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dedline);
WebView myWebView = (WebView) findViewById(R.id.webView1);
myWebView.setWebViewClient(new WebViewClient());
myWebView.loadUrl("https://google.com");
}
Recommended approach will be
1.Don't call super method(Remove super call from overridden method)
2.Google recommend to call SslErrorHandler.cancel() method if any error comes
3.Don't Prompt dialog to expose SSL errors
Whats the best solution?? Remove this override method
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler,SslError error) {
}
This will help in adjusting the emulator according to the webpage:
WebView wb;
//CALL THIS METHOD
wb.setInitialScale(50);
You can set the intial scale in percentage as shown above.
This works for me
webView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// Do what you want
return false;
}
});
Refer to this answer: How can we play YouTube embeded code in an Android application using webview?
It uses WebViews
and loads an iframe
in it... and yes it works.
According to the official documentation, a click on any link in WebView launches an application that handles URLs, which by default is a browser. You need to override the default behavior like this
myWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
});
I know this is an very old question, but have you tried the hardwareAccelerated="true"
manifest flag for your application or activity?
With this set, it seems to work without any WebChromeClient modification (which I would expect from an DOM-Element.)
The method boolean shouldOverrideUrlLoading(WebView view, String url)
was deprecated in API 24. If you are supporting new devices you should use boolean shouldOverrideUrlLoading (WebView view, WebResourceRequest request)
.
You can use both by doing something like this:
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
newsItem.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.getUrl().toString());
return true;
}
});
} else {
newsItem.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
}
You can use an Intent for this:
Uri uriUrl = Uri.parse("http://www.google.com/");
Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl);
startActivity(launchBrowser);
If your app use multiple webview you will still have troubles : localStorage is not correctly shared accross all webviews.
If you want to share the same data in multiple webviews the only way is to repair it with a java database and a javascript interface.
This page on github shows how to do this.
hope this help!
Just to show progress bar, "onPageStarted" and "onPageFinished" methods are enough; but if you want to have an "is_loading" flag (along with page redirects, ...), this methods may executed with non-sequencing, like "onPageStarted > onPageStarted > onPageFinished > onPageFinished" queue.
But with my short test (test it yourself.), "onProgressChanged" method values queue is "0-100 > 0-100 > 0-100 > ..."
private boolean is_loading = false;
webView.setWebChromeClient(new MyWebChromeClient(context));
private final class MyWebChromeClient extends WebChromeClient{
@Override
public void onProgressChanged(WebView view, int newProgress) {
if (newProgress == 0){
is_loading = true;
} else if (newProgress == 100){
is_loading = false;
}
super.onProgressChanged(view, newProgress);
}
}
Also set "is_loading = false
" on activity close, if it is a static variable because activity can be finished before page finish.
maybe SSL
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
// ignore ssl error
if (handler != null){
handler.proceed();
} else {
super.onReceivedSslError(view, null, error);
}
}
try this
webviewlayout.xml:
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/help_webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="none"
/>
In your Activity:
WebView webView;
setContentView(R.layout.webviewlayout);
webView = (WebView)findViewById(R.id.help_webview);
webView.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://www.google.com");
Update
Add webView.setWebViewClient(new WebViewController());
to your Activity.
WebViewController class:
public class WebViewController extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
Use
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
return shouldOverrideUrlLoading(view, request.getUrl().toString());
}
Here is the code that I am using:
Inside WebViewClient:
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
findViewById(R.id.progress1).setVisibility(View.VISIBLE);
}
@Override
public void onPageFinished(WebView view, String url) {
findViewById(R.id.progress1).setVisibility(View.GONE);
}
Here is the XML :
<ProgressBar
android:id="@+id/progress1"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
Hope this helps..
You also can try out this
final WebView webView = new WebView(this);
webView.loadDataWithBaseURL(null, content, "text/html", "UTF-8", null);
From kitkat onwards use evaluateJavascript method instead loadUrl to call the javascript functions like below
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
webView.evaluateJavascript("enable();", null);
} else {
webView.loadUrl("javascript:enable();");
}
Cprcrack's answer works very well for API levels 19 and under. Just a minor addition to cprcrack's onShowCustomView
will get it working on API level 21+
if (Build.VERSION.SDK_INT >= 21) {
videoViewContainer.setBackgroundColor(Color.BLACK);
((ViewGroup) webView.getParent()).addView(videoViewContainer);
webView.scrollTo(0,0); // centers full screen view
} else {
activityNonVideoView.setVisibility(View.INVISIBLE);
ViewGroup.LayoutParams vg = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT);
activityVideoView.addView(videoViewContainer,vg);
activityVideoView.setVisibility(View.VISIBLE);
}
You will also need to reflect the changes in onHideCustomView
Here is my solution I use for my app.
I have several asset folder with css / js / img anf font files.
The application gets all filenames and looks if a file with this name is requested. If yes, it loads it from asset folder.
//get list of files of specific asset folder
private ArrayList listAssetFiles(String path) {
List myArrayList = new ArrayList();
String [] list;
try {
list = getAssets().list(path);
for(String f1 : list){
myArrayList.add(f1);
}
} catch (IOException e) {
e.printStackTrace();
}
return (ArrayList) myArrayList;
}
//get mime type by url
public String getMimeType(String url) {
String type = null;
String extension = MimeTypeMap.getFileExtensionFromUrl(url);
if (extension != null) {
if (extension.equals("js")) {
return "text/javascript";
}
else if (extension.equals("woff")) {
return "application/font-woff";
}
else if (extension.equals("woff2")) {
return "application/font-woff2";
}
else if (extension.equals("ttf")) {
return "application/x-font-ttf";
}
else if (extension.equals("eot")) {
return "application/vnd.ms-fontobject";
}
else if (extension.equals("svg")) {
return "image/svg+xml";
}
type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
}
return type;
}
//return webresourceresponse
public WebResourceResponse loadFilesFromAssetFolder (String folder, String url) {
List myArrayList = listAssetFiles(folder);
for (Object str : myArrayList) {
if (url.contains((CharSequence) str)) {
try {
Log.i(TAG2, "File:" + str);
Log.i(TAG2, "MIME:" + getMimeType(url));
return new WebResourceResponse(getMimeType(url), "UTF-8", getAssets().open(String.valueOf(folder+"/" + str)));
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
//@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@SuppressLint("NewApi")
@Override
public WebResourceResponse shouldInterceptRequest(final WebView view, String url) {
//Log.i(TAG2, "SHOULD OVERRIDE INIT");
//String url = webResourceRequest.getUrl().toString();
String extension = MimeTypeMap.getFileExtensionFromUrl(url);
//I have some folders for files with the same extension
if (extension.equals("css") || extension.equals("js") || extension.equals("img")) {
return loadFilesFromAssetFolder(extension, url);
}
//more possible extensions for font folder
if (extension.equals("woff") || extension.equals("woff2") || extension.equals("ttf") || extension.equals("svg") || extension.equals("eot")) {
return loadFilesFromAssetFolder("font", url);
}
return null;
}
This works for me:
First you need to create method, which will be returns your headers you want to add to request:
private Map<String, String> getCustomHeaders()
{
Map<String, String> headers = new HashMap<>();
headers.put("YOURHEADER", "VALUE");
return headers;
}
Second you need to create WebViewClient:
private WebViewClient getWebViewClient()
{
return new WebViewClient()
{
@Override
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request)
{
view.loadUrl(request.getUrl().toString(), getCustomHeaders());
return true;
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url, getCustomHeaders());
return true;
}
};
}
Add WebViewClient to your WebView:
webView.setWebViewClient(getWebViewClient());
Hope this helps.
paste your .html file in assets folder of your project folder. and create an xml file in layout folder with the fol code: my.xml:
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
add fol code in activity
setContentView(R.layout.my);
WebView mWebView = null;
mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("file:///android_asset/new.html"); //new.html is html file name.
You also need to annotate the method with @JavascriptInterface if your targetSdkVersion is >= 17 - because there is new security requirements in SDK 17, i.e. all javascript methods must be annotated with @JavascriptInterface. Otherwise you will see error like: Uncaught TypeError: Object [object Object] has no method 'processHTML' at null:1
My dirty, but easy-to-implement and well working solution:
Simply put the webview inside a scrollview. Make the webview to be far too bigger than the possible content (in one or both dimensions, depending on the requirements). ..and set up the scrollview's scrollbar(s) as you wish.
Example to disable the horizontal scrollbar on a webview:
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="vertical"
>
<WebView
android:id="@+id/mywebview"
android:layout_width="1000dip"
android:layout_height="fill_parent"
/>
</ScrollView>
I hope this helps ;)
Official Kotlin Way:
override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
// Check if the key event was the Back button and if there's history
if (keyCode == KeyEvent.KEYCODE_BACK && myWebView.canGoBack()) {
myWebView.goBack()
return true
}
// If it wasn't the Back key or there's no web page history, bubble up to the default
// system behavior (probably exit the activity)
return super.onKeyDown(keyCode, event)
}
https://developer.android.com/guide/webapps/webview.html#NavigatingHistory
You can do it manually, by comparing with greater than or equal and less than or equal.
select * from table_name where created_at_column >= lower_date and created_at_column <= upper_date;
In our example, we need to retrieve data from a particular day to day. We will compare from the beginning of the day to the latest second in another day.
select * from table_name where created_at_column >= '2018-09-01 00:00:00' and created_at_column <= '2018-09-05 23:59:59';
Needed a little bit more sudo. Then used easy_install to install pip. Works.
sudo wget https://bootstrap.pypa.io/ez_setup.py -O - | sudo python
sudo easy_install pip
Although this is a old thread, I have come across the same error recently while running nslookup in CentOS 7 and google search led me to some of the discussions in SO including this one. However, adding the nameservers entries to /etc/resolv.conf alone did not help as the nameserver values in resolv.conf were overwritten by the NetworkManager with the default DNS nameservers that are in the eth profile associated to the ethernet IP config.
As mentioned by @m-canvar, set the following entries in /etc/resolv.conf
search yourdomain.com
nameserver 8.8.8.8
nameserver 4.2.2.1
nameserver 8.8.4.4
To prevent overwriting these entries by NetworkManager, there are two two approaches:
Option 1: Either set NM_CONTROLLED=no in the eth profile associated to the IPv4/IPv6 profile.
Option 2: Disable NetworkManager service from running.
chkconfig NetworkManager off
service NetworkManager stop
More details can be referred in my post about this error and solution.
Use this syntax for VB.NET 2005/2008 compatibility:
Dim theVar As New List(Of String)(New String() {"one", "two", "three"})
Although the VB.NET 2010 syntax is prettier.
Strictly speaking, the difference between Database and Schema is inexisting in MySql.
However, this is not the case in other database engines such as SQL Server. In SQL server:,
Every table belongs to a grouping of objects in the database called database schema. It's a container or namespace (Querying Microsoft SQL Server 2012)
By default, all the tables in SQL Server belong to a default schema called dbo. When you query a table that hasn't been allocated to any particular schema, you can do something like:
SELECT *
FROM your_table
which is equivalent to:
SELECT *
FROM dbo.your_table
Now, SQL server allows the creation of different schema, which gives you the possibility of grouping tables that share a similar purpose. That helps to organize the database.
For example, you can create an schema called sales, with tables such as invoices, creditorders (and any other related with sales), and another schema called lookup, with tables such as countries, currencies, subscriptiontypes (and any other table used as look up table).
The tables that are allocated to a specific domain are displayed in SQL Server Studio Manager with the schema name prepended to the table name (exactly the same as the tables that belong to the default dbo schema).
There are special schemas in SQL Server. To quote the same book:
There are several built-in database schemas, and they can't be dropped or altered:
1) dbo, the default schema.
2) guest contains objects available to a guest user ("guest user" is a special role in SQL Server lingo, with some default and highly restricted permissions). Rarely used.
3) INFORMATION_SCHEMA, used by the Information Schema Views
4) sys, reserved for SQL Server internal use exclusively
Schemas are not only for grouping. It is actually possible to give different permissions for each schema to different users, as described MSDN.
Doing this way, the schema lookup mentioned above could be made available to any standard user in the database (e.g. SELECT
permissions only), whereas a table called supplierbankaccountdetails may be allocated in a different schema called financial, and to give only access to the users in the group accounts
(just an example, you get the idea).
Finally, and quoting the same book again:
It isn't the same Database Schema and Table Schema. The former is the namespace of a table, whereas the latter refers to the table definition
You can pass as many arguments as you want, separating them by commas:
{{ path('_files_manage', {project: project.id, user: user.id}) }}
To have access to stuff provided by math
module, like pi
. You need to import the module first:
import math
print (math.pi)
In the solution with variadic templates provided by pfalcon, I found it difficult to actually specialize the ostream operator for std::map due to the greedy nature of the variadic specialization. Here's a slight revision which worked for me:
#include <iostream>
#include <vector>
#include <deque>
#include <list>
#include <map>
namespace containerdisplay
{
template<typename T, template<class,class...> class C, class... Args>
std::ostream& operator <<(std::ostream& os, const C<T,Args...>& objs)
{
std::cout << __PRETTY_FUNCTION__ << '\n';
for (auto const& obj : objs)
os << obj << ' ';
return os;
}
}
template< typename K, typename V>
std::ostream& operator << ( std::ostream& os,
const std::map< K, V > & objs )
{
std::cout << __PRETTY_FUNCTION__ << '\n';
for( auto& obj : objs )
{
os << obj.first << ": " << obj.second << std::endl;
}
return os;
}
int main()
{
{
using namespace containerdisplay;
std::vector<float> vf { 1.1, 2.2, 3.3, 4.4 };
std::cout << vf << '\n';
std::list<char> lc { 'a', 'b', 'c', 'd' };
std::cout << lc << '\n';
std::deque<int> di { 1, 2, 3, 4 };
std::cout << di << '\n';
}
std::map< std::string, std::string > m1
{
{ "foo", "bar" },
{ "baz", "boo" }
};
std::cout << m1 << std::endl;
return 0;
}
I have same problem after upgrading to Gradle Wrapper 5.1.rec3. I am back to Gradle 4.6
Having trouble wrapping my head around this.
Have a rewrite rule with four conditions.
The first three conditions A, B, C are to be AND which is then OR with D
RewriteCond A true
RewriteCond B false
RewriteCond C [OR] true
RewriteCond D true
RewriteRule ...
But that seems to be an expression of A and B and (C or D) = false (don't rewrite)
How can I get to the desired expression? (A and B and C) or D = true (rewrite)
Preferably without using the additional steps of setting environment variables.
HELP!!!
Try
CREATE TABLE foo LIKE bar;
so the keys and indexes are copied over as, well.
A while ago i wrote a detailed article about Hibernate key generators: http://blog.eyallupu.com/2011/01/hibernatejpa-identity-generators.html
Choosing the correct generator is a complicated task but it is important to try and get it right as soon as possible - a late migration might be a nightmare.
A little off topic but a good chance to raise a point usually overlooked which is sharing keys between applications (via API). Personally I always prefer surrogate keys and if I need to communicate my objects with other systems I don't expose my key (even though it is a surrogate one) – I use an additional ‘external key’. As a consultant I have seen more than once 'great' system integrations using object keys (the 'it is there let's just use it' approach) just to find a year or two later that one side has issues with the key range or something of the kind requiring a deep migration on the system exposing its internal keys. Exposing your key means exposing a fundamental aspect of your code to external constrains shouldn’t really be exposed to.
New in 2014:
Especially if you're also interested in data manipulation in general (including sorting, filtering, subsetting, summarizing etc.), you should definitely take a look at dplyr
, which comes with a variety of functions all designed to facilitate your work specifically with data frames and certain other database types. It even offers quite an elaborate SQL interface, and even a function to convert (most) SQL code directly into R.
The four joining-related functions in the dplyr package are (to quote):
inner_join(x, y, by = NULL, copy = FALSE, ...)
: return all rows from
x where there are matching values in y, and all columns from x and y left_join(x, y, by = NULL, copy = FALSE, ...)
: return all rows from x, and all columns from x and y semi_join(x, y, by = NULL, copy = FALSE, ...)
: return all rows from x where there are matching values in
y, keeping just columns from x. anti_join(x, y, by = NULL, copy = FALSE, ...)
: return all rows from x
where there are not matching values in y, keeping just columns from xIt's all here in great detail.
Selecting columns can be done by select(df,"column")
. If that's not SQL-ish enough for you, then there's the sql()
function, into which you can enter SQL code as-is, and it will do the operation you specified just like you were writing in R all along (for more information, please refer to the dplyr/databases vignette). For example, if applied correctly, sql("SELECT * FROM hflights")
will select all the columns from the "hflights" dplyr table (a "tbl").
DateTime xmas = new DateTime(2009, 12, 25);
double daysUntilChristmas = xmas.Subtract(DateTime.Today).TotalDays;
Use the Array#join
method (the argument to join
is what to insert between the strings - in this case a space):
@arr.join(" ")
You do not need to take a pointer to the array in order to pass it to an array-generating function, because arrays already decay to pointers when you pass them to functions. Simply make the parameter int a[]
, and use it as a regular array inside the function, the changes will be made to the array that you have passed in.
void generateArray(int a[], int si) {
srand(time(0));
for (int j=0;j<*si;j++)
a[j]=(0+rand()%9);
}
int main(){
const int size=5;
int a[size];
generateArray(a, size);
return 0;
}
As a side note, you do not need to pass the size by pointer, because you are not changing it inside the function. Moreover, it is not a good idea to pass a pointer to constant to a parameter that expects a pointer to non-constant.
In addition to the previous response, the best option to submit a form with different buttons without language problems is actually using a button tag.
<form>
...
<button type="submit" name="submit" value="servlet1">Go to 1st Servlet</button>
<button type="submit" name="submit" value="servlet2">Go to 2nd Servlet</button>
</form>
Here are some useful links:
The 2nd column is the keyCode and the html column shows how it will displayed. You can test it here.
Check that you have enough rights to workspace directory. I got this error when I didn't have write permission to workspace.
You can use a simple regex (updated version from user viriathus as eregi
is deprecated)
if (preg_match('#^http#', $url) === 1) {
// Starts with http (case sensitive).
}
or if you want a case insensitive search
if (preg_match('#^http#i', $url) === 1) {
// Starts with http (case insensitive).
}
Regexes allow to perform more complex tasks
if (preg_match('#^https?://#i', $url) === 1) {
// Starts with http:// or https:// (case insensitive).
}
Performance wise, you don't need to create a new string (unlike with substr) nor parse the whole string if it doesn't start with what you want. You will have a performance penalty though the 1st time you use the regex (you need to create/compile it).
This extension maintains a global per-thread cache of compiled regular expressions (up to 4096). http://www.php.net/manual/en/intro.pcre.php
It is simple use below codes.
final Date todayDate = new Date();
System.out.println(todayDate);
System.out.println(new SimpleDateFormat("MM-dd-yyyy").format(todayDate));
System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(todayDate));
System.out.println(todayDate);
If you need a lot of decimal numbers, in this example 17, I share with you MySql code:
This is the calculate:
=(9/1147)*100
SELECT TRUNCATE(((CAST(9 AS DECIMAL(30,20))/1147)*100),17);
If you're using SSMS (or old school Enterprise Manager) to edit the table directly, press CTRL+0 to add a null.
The problem is that you're targeting the button, but it's the A Tag that causes the text-decoration: underline. So if you target the A tag then it should work.
a:hover, a:focus { text-decoration: none;}
For those looking where to place the image file on the Jupyter machine so that it could be shown from the local file system.
I put my mypic.png
into
/root/Images/mypic.png
(that is the Images folder that shows up in the Jupyter online file browser)
In that case I need to put the following line into the Markdown cell to make my pic showing in the notepad:
![My Title](Images/mypic.png)
Starting from TypeScript 2.4, the enum would not contain the key as a member anymore. source from TypeScript readme
The caveat is that string-initialized enums can't be reverse-mapped to get the original enum member name. In other words, you can't write Colors["RED"] to get the string "Red".
My solution:
export const getColourKey = (value: string ) => {
let colourKey = '';
for (const key in ColourEnum) {
if (value === ColourEnum[key]) {
colourKey = key;
break;
}
}
return colourKey;
};
The default RatingBar widget is sorta' lame.
The source makes reference to style "?android:attr/ratingBarStyleIndicator
" in addition to the "?android:attr/ratingBarStyleSmall
" that you're already familiar with. ratingBarStyleIndicator
is slightly smaller but it's still pretty ugly and the comments note that these styles "don't support interaction".
You're probably better-off rolling your own. There's a decent-looking guide at http://kozyr.zydako.net/2010/05/23/pretty-ratingbar/ showing how to do this. (I haven't done it myself yet, but will be attempting in a day or so.)
Good luck!
p.s. Sorry, was going to post a link to the source for you to poke around in but I'm a new user and can't post more than 1 URL. If you dig your way through the source tree, it's located at frameworks/base/core/java/android/widget/RatingBar.java
Well, I was suffering with this Issue but finally I found the solution.
Problem Starts Here: ["Install missing platform(s) and sync project" (link) doesn't work & gradle sync failed]
Problem Source: Just check out the app -> src-build.gradle
and you will find the parameters
compileSdkVersion 25
buildToolsVersion "25.0.1"
targetSdkVersion 25
Note: You might find these parameters with different values e.g
compileSdkVersion 23
etc.
These above parameters in build.gradle
creates error because their values are not compatible with your current SDK version.
The solution to This error is simple, just open a new project in your Android Studio, In that new project goto app -> src-build.gradle
.
In build.gradle
file of new project find these parameters:
In my case these are:
compileSdkVersion "26"
buildToolsVersion "26.0.1"
targetSdkVersion 26
Now copy these parameters from your new project build.gradle
file and post them in the same file of the other project(having Error).
Not sure if my needs are just kind of weird, but I needed something similar to this and this is what I ended up using:
$('input.update').bind('sync', function() {
clearTimeout($(this).data('timer'));
$.post($(this).attr('data-url'), {value: $(this).val()}, function(x) {
if(x.success != true) {
triggerError(x.message);
}
}, 'json');
}).keyup(function() {
clearTimeout($(this).data('timer'));
var val = $.trim($(this).val());
if(val) {
var $this = $(this);
var timer = setTimeout(function() {
$this.trigger('sync');
}, 2000);
$(this).data('timer', timer);
}
}).blur(function() {
clearTimeout($(this).data('timer'));
$(this).trigger('sync');
});
Which allows me to have elements like this in my application:
<input type="text" data-url="/controller/action/" class="update">
Which get updated when the user is "done typing" (no action for 2 seconds) or goes to another field (blurs out of the element)
I thought I had this configured but it turns out I set the URL in the wrong place. I followed the URL provided in the Google error page and added my URL here. Stupid mistake from my part, but easily done. Hope this helps
for me i found some solutions: it is a working solution
@echo off
title a game for youtube
explorer "https://thepythoncoding.blogspot.com/2020/11/how-to-echo-with-different-colors-in.html"
SETLOCAL EnableDelayedExpansion
for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do (
set "DEL=%%a"
)
echo say the name of the colors, don't read
call :ColorText 0a "blue"
call :ColorText 0C "green"
call :ColorText 0b "red"
echo(
call :ColorText 19 "yellow"
call :ColorText 2F "black"
call :ColorText 4e "white"
goto :Beginoffile
:ColorText
echo off
<nul set /p ".=%DEL%" > "%~2"
findstr /v /a:%1 /R "^$" "%~2" nul
del "%~2" > nul 2>&1
goto :eof
:Beginoffile
You need
var href = $(this).attr('href');
Inside a jQuery click handler, the this
object refers to the element clicked, whereas in your case you're always getting the href for the first <a>
on the page. This, incidentally, is why your example works but your real code doesn't
I encountered the same need and make a universal solution (node+browser) that works with the Next.js framework, for instance.
It even works with circular dependencies (thanks to json-stringify-safe
).
Although, I also built a serializer on top of it to remove unnecessary data (because it's not recommended to use a url longer than 2k chars, see What is the maximum length of a URL in different browsers?)
import StringifySafe from 'json-stringify-safe';
export const encodeQueryParameter = (data: object): string => {
return encodeURIComponent(StringifySafe(data)); // Use StringifySafe to avoid crash on circular dependencies
};
export const decodeQueryParameter = (query: string): object => {
return JSON.parse(decodeURIComponent(query));
};
And the unit tests (jest):
import { decodeQueryParameter, encodeQueryParameter } from './url';
export const data = {
'organisation': {
'logo': {
'id': 'ck2xjm2oj9lr60b32c6l465vx',
'linkUrl': null,
'linkTarget': '_blank',
'classes': null,
'style': null,
'defaultTransformations': { 'width': 200, 'height': 200, '__typename': 'AssetTransformations' },
'mimeType': 'image/png',
'__typename': 'Asset',
},
'theme': {
'primaryColor': '#1134e6',
'primaryAltColor': '#203a51',
'secondaryColor': 'white',
'font': 'neuzeit-grotesk',
'__typename': 'Theme',
'primaryColorG1': '#ffffff',
},
},
};
export const encodedData = '%7B%22organisation%22%3A%7B%22logo%22%3A%7B%22id%22%3A%22ck2xjm2oj9lr60b32c6l465vx%22%2C%22linkUrl%22%3Anull%2C%22linkTarget%22%3A%22_blank%22%2C%22classes%22%3Anull%2C%22style%22%3Anull%2C%22defaultTransformations%22%3A%7B%22width%22%3A200%2C%22height%22%3A200%2C%22__typename%22%3A%22AssetTransformations%22%7D%2C%22mimeType%22%3A%22image%2Fpng%22%2C%22__typename%22%3A%22Asset%22%7D%2C%22theme%22%3A%7B%22primaryColor%22%3A%22%231134e6%22%2C%22primaryAltColor%22%3A%22%23203a51%22%2C%22secondaryColor%22%3A%22white%22%2C%22font%22%3A%22neuzeit-grotesk%22%2C%22__typename%22%3A%22Theme%22%2C%22primaryColorG1%22%3A%22%23ffffff%22%7D%7D%7D';
describe(`utils/url.ts`, () => {
describe(`encodeQueryParameter`, () => {
test(`should encode a JS object into a url-compatible string`, async () => {
expect(encodeQueryParameter(data)).toEqual(encodedData);
});
});
describe(`decodeQueryParameter`, () => {
test(`should decode a url-compatible string into a JS object`, async () => {
expect(decodeQueryParameter(encodedData)).toEqual(data);
});
});
describe(`encodeQueryParameter <> decodeQueryParameter <> encodeQueryParameter`, () => {
test(`should encode and decode multiple times without altering data`, async () => {
const _decodedData: object = decodeQueryParameter(encodedData);
expect(_decodedData).toEqual(data);
const _encodedData: string = encodeQueryParameter(_decodedData);
expect(_encodedData).toEqual(encodedData);
const _decodedDataAgain: object = decodeQueryParameter(_encodedData);
expect(_decodedDataAgain).toEqual(data);
});
});
});
To remove specific key and element from hashmap use
hashmap.remove(key)
full source code is like
import java.util.HashMap;
public class RemoveMapping {
public static void main(String a[]){
HashMap hashMap = new HashMap();
hashMap.put(1, "One");
hashMap.put(2, "Two");
hashMap.put(3, "Three");
System.out.println("Original HashMap : "+hashMap);
hashMap.remove(3);
System.out.println("Changed HashMap : "+hashMap);
}
}
Greedy means it will consume your pattern until there are none of them left and it can look no further.
Lazy will stop as soon as it will encounter the first pattern you requested.
One common example that I often encounter is \s*-\s*?
of a regex ([0-9]{2}\s*-\s*?[0-9]{7})
The first \s*
is classified as greedy because of *
and will look as many white spaces as possible after the digits are encountered and then look for a dash character "-". Where as the second \s*?
is lazy because of the present of *?
which means that it will look the first white space character and stop right there.
For anyone needing this for Bootstrap 3, it is now much easier.
The new nav-justified
class can be used to center all of the navbar links..
http://www.bootply.com/g3g125MLGr
<div class="navbar">
<ul class="nav nav-justified" id="myNav">
<li><a href="#">Home</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</div>
Or with a little CSS you can center just the brand/logo, and keep the left/right links separate..
If you use an =
statement to assign a value to a var
with an object on the right side, javascript will not copy but reference the object.
You can use lodash's clone
method
var obj = {a: 25, b: 50, c: 75};
var A = _.clone(obj);
Or lodash's cloneDeep
method if your object has multiple object levels
var obj = {a: 25, b: {a: 1, b: 2}, c: 75};
var A = _.cloneDeep(obj);
Or lodash's merge
method if you mean to extend the source object
var obj = {a: 25, b: {a: 1, b: 2}, c: 75};
var A = _.merge({}, obj, {newkey: "newvalue"});
Or you can use jQuerys extend
method:
var obj = {a: 25, b: 50, c: 75};
var A = $.extend(true,{},obj);
Here is jQuery 1.11 extend method's source code :
jQuery.extend = jQuery.fn.extend = function() {
var src, copyIsArray, copy, name, options, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
deep = target;
// skip the boolean and the target
target = arguments[ i ] || {};
i++;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
target = {};
}
// extend jQuery itself if only one argument is passed
if ( i === length ) {
target = this;
i--;
}
for ( ; i < length; i++ ) {
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null ) {
// Extend the base object
for ( name in options ) {
src = target[ name ];
copy = options[ name ];
// Prevent never-ending loop
if ( target === copy ) {
continue;
}
// Recurse if we're merging plain objects or arrays
if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
if ( copyIsArray ) {
copyIsArray = false;
clone = src && jQuery.isArray(src) ? src : [];
} else {
clone = src && jQuery.isPlainObject(src) ? src : {};
}
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );
// Don't bring in undefined values
} else if ( copy !== undefined ) {
target[ name ] = copy;
}
}
}
}
// Return the modified object
return target;
};
If someone is having issues with creating tables by using files dedicated to each model, be aware of running the "create_all" function from a file different from the one where that function is declared. So, if the filesystem is like this:
Root
--app.py <-- file from which app will be run
--models
----user.py <-- file with "User" model
----order.py <-- file with "Order" model
----database.py <-- file with database and "create_all" function declaration
Be careful about calling the "create_all" function from app.py.
This concept is explained better by the answer to this thread posted by @SuperShoot
If the file is large, you may not want to load it entirely into memory at once. This approach avoids that. (Of course, making a dict out of it could still take up some RAM, but it's guaranteed to be smaller than the original file.)
my_dict = {}
for i, line in enumerate(file):
if (i - 8) % 7:
continue
k, v = line.split("\t")[:3:2]
my_dict[k] = v
Edit: Not sure where I got extend
from before. I meant update
I think the best answer if from Mike in the case you can't launch your event because is not from your code. But I get some errors when I used it. So I write a new answer for show you the code that I use.
Extension
// Extends functionality of ".css()"
// This could be renamed if you'd like (i.e. "$.fn.cssWithListener = func ...")
(function() {
orig = $.fn.css;
$.fn.css = function() {
var result = orig.apply(this, arguments);
$(this).trigger('stylechanged');
return result;
}
})();
Usage
// Add listener
$('element').on('stylechanged', function () {
console.log('css changed');
});
// Perform change
$('element').css('background', 'red');
I got error because var ev = new $.Event('style'); Something like style was not defined in HtmlDiv.. I removed it, and I launch now $(this).trigger("stylechanged"). Another problem was that Mike didn't return the resulto of $(css, ..) then It can make problems in some cases. So I get the result and return it. Now works ^^ In every css change include from some libs that I can't modify and trigger an event.
All md-
prefixes are now mat-
prefixes as of time of writing this!
Put this in your html head:
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
Import in our module:
import { MatIconModule } from '@angular/material';
Use in your code:
<mat-icon>face</mat-icon>
Here is the latest documentation:
Linux's memory management philosophy is "Free memory is wasted memory".
I assume that the next two lines will show how much memory is in "Buffers" and how much is "Cached". While there is a difference between the two (please don't ask what that difference is :) they both roughly add up to the amount of memory used to cache file data and metadata.
A far more useful guide to free memory on a Linux system is the free(1)
command; on my desktop, it reports information like this:
$ free -m total used free shared buffers cached Mem: 5980 1055 4924 0 91 374 -/+ buffers/cache: 589 5391 Swap: 6347 0 6347
The +/- buffers/cache: line is the magic line, it reports that I've really got around 589 megs of actively required process memory, and around 5391 megs of 'free' memory, in the sense that the 91+374 megabytes of buffers/cached memory can be thrown away if the memory could be more profitably used elsewhere.
(My machine has been up for about three hours, doing nearly nothing but stackoverflow, which is why I have so much free memory.)
If Android doesn't ship with free(1)
, you can do the math yourself with the /proc/meminfo
file; I just like the free(1)
output format. :)
I know I'm a little late to the party, but I did want to throw some interjections. (I would have commented but not enough reputation points yet, so, here's a full answer).
This requires the latest version of VS Code, Azure Repo Extention, and Git to be installed.
Anyone looking to use the new VS Code (or using the preview like myself), when you go to the Settings (Still File -> Preferences -> Settings or CTRL+, ) you'll be looking under User Settings -> Extensions -> Azure Repos.
Then under Tfvc: Location you can paste the location of the executable.
For 2017 it'll be
C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\TF.exe
Or for 2019 (Preview)
C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\TF.exe
After adding the location, I closed my VS Code (not sure if this was needed) and went my git repo to copy the git URL.
After that, went back into VS Code went to the Command Palette (View -> Command Palette or CTRL+Shift+P) typed Git: Clone
pasted my repo:
Selected the location for the repo to be stored. Next was an error that popped up. I proceeded to follow this video which walked me through clicking on the Team button with the exclamation mark on the bottom of your VS Code Screen
Then chose the new method of authentication
Copy by using CTRL+C and then press enter. Your browser will launch a page where you'll enter the code you copied (CTRL+V).
Click Continue
Log in with your Microsoft Credentials and you should see a change on the bottom bar of VS Code.
Cheers!
SELECT t.name
FROM sys.tables AS t
INNER JOIN sys.schemas AS s
ON t.[schema_id] = s.[schema_id]
WHERE s.name = N'schema_name';
Here the simples
a = [x for x in 'abcdefgh'] #['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
Your result will vary depending on what kind of terminal or console program you're on, but yes, on most \b
is a nondestructive backspace. It moves the cursor backward, but doesn't erase what's there.
So for the hello worl
part, the code outputs
hello worl ^
...(where ^
shows where the cursor is) Then it outputs two \b
characters which moves the cursor backward two places without erasing (on your terminal):
hello worl ^
Note the cursor is now on the r
. Then it outputs d
, which overwrites the r
and gives us:
hello wodl ^
Finally, it outputs \n
, which is a non-destructive newline (again, on most terminals, including apparently yours), so the l
is left unchanged and the cursor is moved to the beginning of the next line.
A slightly simpler syntax (in Robomongo at least) worked for me:
db.database.save({ Year : NumberInt(2015) });
What's you've got there should be fine to work, but there is no actual "Is Mobile/Tablet" media query so you're always going to be stuck.
There are media queries for common breakpoints , but with the ever changing range of devices they're not guaranteed to work moving forwards.
The idea is that your site maintains the same brand across all sizes, so you should want the styles to cascade across the breakpoints and only update the widths and positioning to best suit that viewport.
To further the answer above, using Modernizr with a no-touch test will allow you to target touch devices which are most likely tablets and smart phones, however with the new releases of touch based screens that is not as good an option as it once was.
find . ! \( -name "*.exe" -o -name "*.dll" \)
To avoid this error you could either:
You will find instructions on signing third-party assemblies in .NET-fu: Signing an Unsigned Assembly (Without Delay Signing).
The basic principle to sign a thirp-party is to
Disassemble the assembly using ildasm.exe
and save the intermediate language (IL):
ildasm /all /out=thirdPartyLib.il thirdPartyLib.dll
Rebuild and sign the assembly:
ilasm /dll /key=myKey.snk thirdPartyLib.il
The above steps work fine unless your third-party assembly (A.dll) references another library (B.dll) which also has to be signed. You can disassemble, rebuild and sign both A.dll and B.dll using the commands above, but at runtime, loading of B.dll will fail because A.dll was originally built with a reference to the unsigned version of B.dll.
The fix to this issue is to patch the IL file generated in step 1 above. You will need to add the public key token of B.dll to the reference. You get this token by calling
sn -Tp B.dll
which will give you the following output:
Microsoft (R) .NET Framework Strong Name Utility Version 4.0.30319.33440
Copyright (c) Microsoft Corporation. All rights reserved.
Public key (hash algorithm: sha1):
002400000480000094000000060200000024000052534131000400000100010093d86f6656eed3
b62780466e6ba30fd15d69a3918e4bbd75d3e9ca8baa5641955c86251ce1e5a83857c7f49288eb
4a0093b20aa9c7faae5184770108d9515905ddd82222514921fa81fff2ea565ae0e98cf66d3758
cb8b22c8efd729821518a76427b7ca1c979caa2d78404da3d44592badc194d05bfdd29b9b8120c
78effe92
Public key token is a8a7ed7203d87bc9
The last line contains the public key token. You then have to search the IL of A.dll for the reference to B.dll and add the token as follows:
.assembly extern /*23000003*/ MyAssemblyName
{
.publickeytoken = (A8 A7 ED 72 03 D8 7B C9 )
.ver 10:0:0:0
}
Another option
tuple([tuple(row) for row in myarray])
If you are passing NumPy arrays to C++ functions, you may also wish to look at using Cython or SWIG.
Run the following commands to get the very latest of angular
npm uninstall -g @angular/cli
npm cache verify
npm install -g @angular/cli@latest
npm install
For example:
you can use:
df %>% filter(!is.na(a))
to remove the NA in column a.
Your JavaScript would have to be defined within a PHP-parsed file.
For example, in index.php you could place
<?php
$time = time();
?>
<script>
document.write(<?php echo $time; ?>);
</script>
var x = condition || null;
Use Convert.ToDouble("41.00027357629127");
if you have Firebase included also, make them of same version as the error says.
If you want to call functions on components from outside React, you can call them on the return value of renderComponent:
var Child = React.createClass({…});
var myChild = React.renderComponent(Child);
myChild.someMethod();
The only way to get a handle to a React Component instance outside of React is by storing the return value of React.renderComponent. Source.
The decision of whether to use PUT or POST to create a resource on a server with an HTTP + REST API is based on who owns the URL structure. Having the client know, or participate in defining, the URL struct is an unnecessary coupling akin to the undesirable couplings that arose from SOA. Escaping types of couplings is the reason REST is so popular. Therefore, the proper method to use is POST. There are exceptions to this rule and they occur when the client wishes to retain control over the location structure of the resources it deploys. This is rare and likely means something else is wrong.
At this point some people will argue that if RESTful-URL's are used, the client does knows the URL of the resource and therefore a PUT is acceptable. After all, this is why canonical, normalized, Ruby on Rails, Django URLs are important, look at the Twitter API … blah blah blah. Those people need to understand there is no such thing as a Restful-URL and that Roy Fielding himself states that:
A REST API must not define fixed resource names or hierarchies (an obvious coupling of client and server). Servers must have the freedom to control their own namespace. Instead, allow servers to instruct clients on how to construct appropriate URIs, such as is done in HTML forms and URI templates, by defining those instructions within media types and link relations. [Failure here implies that clients are assuming a resource structure due to out-of band information, such as a domain-specific standard, which is the data-oriented equivalent to RPC's functional coupling].
http://roy.gbiv.com/untangled/2008/rest-apis-must-be-hypertext-driven
The idea of a RESTful-URL is actually a violation of REST as the server is in charge of the URL structure and should be free to decide how to use it to avoid coupling. If this confuses you read about the significance of self discovery on API design.
Using POST to create resources comes with a design consideration because POST is not idempotent. This means that repeating a POST several times does not guarantee the same behavior each time. This scares people into using PUT to create resources when they should not. They know it's wrong (POST is for CREATE) but they do it anyway because they don't know how to solve this problem. This concern is demonstrated in the following situation:
Step 6 is where people commonly get confused about what to do. However, there is no reason to create a kludge to solve this issue. Instead, HTTP can be used as specified in RFC 2616 and the server replies:
10.4.10 409 Conflict
The request could not be completed due to a conflict with the current state of the resource. This code is only allowed in situations where it is expected that the user might be able to resolve the conflict and resubmit the request. The response body SHOULD include enough
information for the user to recognize the source of the conflict. Ideally, the response entity would include enough information for the user or user agent to fix the problem; however, that might not be possible and is not required.
Conflicts are most likely to occur in response to a PUT request. For example, if versioning were being used and the entity being PUT included changes to a resource which conflict with those made by an earlier (third-party) request, the server might use the 409 response to indicate that it can’t complete the request. In this case, the response entity would likely contain a list of the differences between the two versions in a format defined by the response Content-Type.
Replying with a status code of 409 Conflict is the correct recourse because:
Update based on release of RFC 7231 to Replace 2616
RFC 7231 is designed to replace 2616 and in Section 4.3.3 describes the follow possible response for a POST
If the result of processing a POST would be equivalent to a representation of an existing resource, an origin server MAY redirect the user agent to that resource by sending a 303 (See Other) response with the existing resource's identifier in the Location field. This has the benefits of providing the user agent a resource identifier and transferring the representation via a method more amenable to shared caching, though at the cost of an extra request if the user agent does not already have the representation cached.
It now may be tempting to simply return a 303 in the event that a POST is repeated. However, the opposite is true. Returning a 303 would only make sense if multiple create requests (creating different resources) return the same content. An example would be a "thank you for submitting your request message" that the client need not re-download each time. RFC 7231 still maintains in section 4.2.2 that POST is not to be idempotent and continues to maintain that POST should be used for create.
For more information about this, read this article.
I had this issue today, and for me the problem was that I had allocated too much memory:
-Xmx1024M -XX:MaxPermSize=1024m
Once I reduced the PermGen space, everything worked fine:
-Xmx1024M -XX:MaxPermSize=512m
I know that doesn't look like much of a difference, but my machine only has 4GB of RAM, and apparently that was the straw that broke the camel's back. The Java VM was failing immediately upon every action because it was failing to allocate the memory.
If this problem arise in a RCP project it can be because JUnit has been explicitly imported.
Check the editor for your plugin.xml
under Dependencies
tab, remove the org.junit
from the Imported Packages and add org.junit
to the Required Plug-ins.
As of Jackson 1.6, you can use:
JsonNode node = mapper.valueToTree(map);
or
JsonNode node = mapper.convertValue(object, JsonNode.class);
Source: is there a way to serialize pojo's directly to treemodel?
Too late but I want to share the way that I resolve it.
Having model
file which has two named export:
export { Schema, Model };
and having controller
file which has the default export:
export default Controller;
I exposed in the index
file in this way:
import { Schema, Model } from './model';
import Controller from './controller';
export { Schema, Model, Controller };
and assuming that I want import all of them:
import { Schema, Model, Controller } from '../../path/';
When a module is loaded from a file in Python, __file__
is set to its path. You can then use that with other functions to find the directory that the file is located in.
Taking your examples one at a time:
A = os.path.join(os.path.dirname(__file__), '..')
# A is the parent directory of the directory where program resides.
B = os.path.dirname(os.path.realpath(__file__))
# B is the canonicalised (?) directory where the program resides.
C = os.path.abspath(os.path.dirname(__file__))
# C is the absolute path of the directory where the program resides.
You can see the various values returned from these here:
import os
print(__file__)
print(os.path.join(os.path.dirname(__file__), '..'))
print(os.path.dirname(os.path.realpath(__file__)))
print(os.path.abspath(os.path.dirname(__file__)))
and make sure you run it from different locations (such as ./text.py
, ~/python/text.py
and so forth) to see what difference that makes.
I just want to address some confusion first. __file__
is not a wildcard it is an attribute. Double underscore attributes and methods are considered to be "special" by convention and serve a special purpose.
http://docs.python.org/reference/datamodel.html shows many of the special methods and attributes, if not all of them.
In this case __file__
is an attribute of a module (a module object). In Python a .py
file is a module. So import amodule
will have an attribute of __file__
which means different things under difference circumstances.
Taken from the docs:
__file__
is the pathname of the file from which the module was loaded, if it was loaded from a file. The__file__
attribute is not present for C modules that are statically linked into the interpreter; for extension modules loaded dynamically from a shared library, it is the pathname of the shared library file.
In your case the module is accessing it's own __file__
attribute in the global namespace.
To see this in action try:
# file: test.py
print globals()
print __file__
And run:
python test.py
{'__builtins__': <module '__builtin__' (built-in)>, '__name__': '__main__', '__file__':
'test_print__file__.py', '__doc__': None, '__package__': None}
test_print__file__.py
String to Time (using an arbitrary time):
String myTime = "10:00:00";
Time startingTime = new Time (myTime);
String to Time (using currentTime):
String currentTime = getCurrentTime();
Time startingTime = new Time (currentTime);
Time to String:
private String getCurrentTime() {
SimpleDateFormat dateFormat = new SimpleDateFormat("kkmmss");
String currentTime = dateFormat.format(System.currentTimeMillis());
return currentTime;
}
@Value("${your.elements}")
private String[] elements;
yml file:
your:
elements: element1, element2, element3
You can change the default with an alter table set default charset
but that won't change the charset of the existing columns. To change that you need to use a alter table modify column
.
Changing the charset of a column only means that it will be able to store a wider range of characters. Your application talks to the db using the mysql client so you may need to change the client encoding as well.
I have been in this position, especially with new hardware. I suggest you write a little hex dump routine of your own. You will be able to see the data, and the addresses they are at, shown all together. It's good practice and a confidence builder.
I had the same error using an UpdateView
I had this:
if form.is_valid() and form2.is_valid():
form.save()
form2.save()
return HttpResponseRedirect(self.get_success_url())
and I solved just doing:
if form.is_valid() and form2.is_valid():
form.save()
form2.save()
return HttpResponseRedirect(reverse_lazy('adopcion:solicitud_listar'))
SQLite has had to sacrifice other characteristics that some people find useful, such as high concurrency, fine-grained access control, a rich set of built-in functions, stored procedures, esoteric SQL language features, XML and/or Java extensions, tera- or peta-byte scalability, and so forth
Source : Appropriate Uses For SQLite
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry pairs = (Map.Entry)it.next();
if(pairs.getKey().equals("mango"))
{
map.put(pairs.getKey(), pairs.getValue().add(18));
}
else if(!map.containsKey("mango"))
{
List<Integer> ints = new ArrayList<Integer>();
ints.add(18);
map.put("mango",ints);
}
it.remove(); // avoids a ConcurrentModificationException
}
EDIT: So inside the while try this:
map.put(pairs.getKey(), pairs.getValue().add(number))
You are getting the error because you are trying to put an integer to the values, whereas it is expected an ArrayList
.
EDIT 2: Then put the following inside your while loop:
if(pairs.getKey().equals("mango"))
{
map.put(pairs.getKey(), pairs.getValue().add(18));
}
else if(!map.containsKey("mango"))
{
List<Integer> ints = new ArrayList<Integer>();
ints.add(18);
map.put("mango",ints);
}
EDIT 3:
By reading your requirements, I come to think you may not need a loop. You may want to only check if the map contains the key mango
, and if it does add 18
, else create a new entry in the map with key mango
and value 18
.
So all you may need is the following, without the loop:
if(map.containsKey("mango"))
{
map.put("mango", map.get("mango).add(18));
}
else
{
List<Integer> ints = new ArrayList<Integer>();
ints.add(18);
map.put("mango", ints);
}
The reason you are getting this error is that you are trying to convert a space character to an integer, which is totally impossible and restricted.And that's why you are getting this error.
Check your code and correct it, it will work fine
Note that a select list is posted as null, hence your error complains that the viewdata property cannot be found.
Always reinitialize your select list within a POST action.
For further explanation: Persist SelectList in model on Post
pgrep -f process_name > any_file_name
sed -i 's/^/kill /' any_file_name
chmod 777 any_file_name
./any_file_name
for example 'pgrep -f firefox' will grep the PID of running 'firefox' and will save this PID to a file called 'any_file_name'. 'sed' command will add the 'kill' in the beginning of the PID number in 'any_file_name' file. Third line will make 'any_file_name' file executable. Now forth line will kill the PID available in the file 'any_file_name'. Writing the above four lines in a file and executing that file can do the control-C. Working absolutely fine for me.
Building off of Vaali's solution:
def sparse_cosine_similarity(sparse_matrix):
out = (sparse_matrix.copy() if type(sparse_matrix) is csr_matrix else
sparse_matrix.tocsr())
squared = out.multiply(out)
sqrt_sum_squared_rows = np.array(np.sqrt(squared.sum(axis=1)))[:, 0]
row_indices, col_indices = out.nonzero()
out.data /= sqrt_sum_squared_rows[row_indices]
return out.dot(out.T)
This takes a sparse matrix (preferably a csr_matrix) and returns a csr_matrix. It should do the more intensive parts using sparse calculations with pretty minimal memory overhead. I haven't tested it extensively though, so caveat emptor (Update: I feel confident in this solution now that I've tested and benchmarked it)
Also, here is the sparse version of Waylon's solution in case it helps anyone, not sure which solution is actually better.
def sparse_cosine_similarity_b(sparse_matrix):
input_csr_matrix = sparse_matrix.tocsr()
similarity = input_csr_matrix * input_csr_matrix.T
square_mag = similarity.diagonal()
inv_square_mag = 1 / square_mag
inv_square_mag[np.isinf(inv_square_mag)] = 0
inv_mag = np.sqrt(inv_square_mag)
return similarity.multiply(inv_mag).T.multiply(inv_mag)
Both solutions seem to have parity with sklearn.metrics.pairwise.cosine_similarity
:-D
Update:
Now I have tested both solutions against my existing Cython implementation: https://github.com/davidmashburn/sparse_dot/blob/master/test/benchmarks_v3_output_table.txt and it looks like the first algorithm performs the best of the three most of the time.
You don't need HttpServletResponse to set a header on the response. You can do it using javax.ws.rs.core.Response. Just make your method to return Response instead of entity:
return Response.ok(entity).header("Content-Disposition", "attachment; filename=\"" + fileName + "\"").build()
If you still want to use HttpServletResponse you can get it either injected to one of the class fields, or using property, or to method parameter:
@Path("/resource")
class MyResource {
// one way to get HttpServletResponse
@Context
private HttpServletResponse anotherServletResponse;
// another way
Response myMethod(@Context HttpServletResponse servletResponse) {
// ... code
}
}
You can try x:Reference trick
<Window ... x:Name="myWindow"><ListBox ItemsSource="{Binding Items, Source={x:Reference myWindow}}" /></Window>
// Use this version to capture the full extended desktop (i.e. multiple screens)
Bitmap screenshot = new Bitmap(SystemInformation.VirtualScreen.Width,
SystemInformation.VirtualScreen.Height,
PixelFormat.Format32bppArgb);
Graphics screenGraph = Graphics.FromImage(screenshot);
screenGraph.CopyFromScreen(SystemInformation.VirtualScreen.X,
SystemInformation.VirtualScreen.Y,
0,
0,
SystemInformation.VirtualScreen.Size,
CopyPixelOperation.SourceCopy);
screenshot.Save("Screenshot.png", System.Drawing.Imaging.ImageFormat.Png);
This may be what your after:
SELECT Count(Owner_ID), Name
FROM (
SELECT M.Owner_ID, O.Name, T.Type
FROM Transport As T, Owner As O, Motorbike As M
WHERE T.Type = 'Motorbike'
AND O.Owner_ID = M.Owner_ID
AND T.Type_ID = M.Motorbike_ID
UNION ALL
SELECT C.Owner_ID, O.Name, T.Type
FROM Transport As T, Owner As O, Car As C
WHERE T.Type = 'Car'
AND O.Owner_ID = C.Owner_ID
AND T.Type_ID = C.Car_ID
)
GROUP BY Owner_ID
Using your example this worked for me:
controller:
ViewData["PageOptionsDropDown"] = new SelectList(new[] { "10", "15", "25", "50", "100", "1000" }, "15");
view:
<%= Html.DropDownList("PageOptionsDropDown")%>
Another option to keep in mind is using the "has-a" relationship, aka "is implemented in terms of" or "composition." Sometimes this is a cleaner, more flexible way to structure things than using "is-a" inheritance.
It may not make as much sense logically to say that Dog and Cat both "have" a Pet, but it avoids common multiple inheritance pitfalls:
public class Pet
{
void Bathe();
void Train(Trick t);
}
public class Dog
{
private Pet pet;
public void Bathe() { pet.Bathe(); }
public void Train(Trick t) { pet.Train(t); }
}
public class Cat
{
private Pet pet;
public void Bathe() { pet.Bathe(); }
public void Train(Trick t) { pet.Train(t); }
}
Yes, this example shows that there is a lot of code duplication and lack of elegance involved in doing things this way. But one should also appreciate that this helps to keep Dog and Cat decoupled from the Pet class (in that Dog and Cat do not have access to the private members of Pet), and it leaves room for Dog and Cat to inherit from something else--possibly the Mammal class.
Composition is preferable when no private access is required and you don't need to refer to Dog and Cat using generic Pet references/pointers. Interfaces give you that generic reference capability and can help cut down on the verbosity of your code, but they can also obfuscate things when they are poorly organized. Inheritance is useful when you need private member access, and in using it you are committing yourself to highly coupling your Dog and Cat classes to your Pet class, which is a steep cost to pay.
Between inheritance, composition, and interfaces there is no one way that is always right, and it helps to consider how all three options can be used in harmony. Of the three, inheritance is typically the option that should be used the least often.
This relatively recent article provides a simple example with a limited Google Maps set of colored icons.
For all those who came here and did indeed use Date typed Variables, here is the solution I found. It does also apply to TypeScript.
I was facing this error because I tried to compare two dates using the following Method
var res = dat1.getTime() > dat2.getTime(); // or any other comparison operator
However Im sure I used a Date object, because Im using angularjs with typescript, and I got the data from a typed API call.
Im not sure why the error is raised, but I assume that because my Object was created by JSON deserialisation, possibly the getTime()
method was simply not added to the prototype.
In this case, recreating a date-Object based on your dates will fix the issue.
var res = new Date(dat1).getTime() > new Date(dat2).getTime()
I was right about this. Types will be cast to the according type but they wont be instanciated. Hence there will be a string cast to a date, which will obviously result in a runtime exception.
The trick is, if you use interfaces with non primitive only data such as dates or functions, you will need to perform a mapping after your http request.
class Details {
description: string;
date: Date;
score: number;
approved: boolean;
constructor(data: any) {
Object.assign(this, data);
}
}
and to perform the mapping:
public getDetails(id: number): Promise<Details> {
return this.http
.get<Details>(`${this.baseUrl}/api/details/${id}`)
.map(response => new Details(response.json()))
.toPromise();
}
for arrays use:
public getDetails(): Promise<Details[]> {
return this.http
.get<Details>(`${this.baseUrl}/api/details`)
.map(response => {
const array = JSON.parse(response.json()) as any[];
const details = array.map(data => new Details(data));
return details;
})
.toPromise();
}
For credits and further information about this topic follow the link.
git pull
is like running git fetch
then git merge
git pull --rebase
is like git fetch
then git rebase
git pull
is like a git fetch
+ git merge
.
"In its default mode, git pull is shorthand for
git fetch
followed bygit merge
FETCH_HEAD" More precisely,git pull
runsgit fetch
with the given parameters and then callsgit merge
to merge the retrieved branch heads into the current branch"
(Ref: https://git-scm.com/docs/git-pull)
'But what is the difference between git pull
VS git fetch
+ git rebase
'
Again, from same source:
git pull --rebase
"With --rebase, it runs git rebase instead of git merge."
'the difference between merge
and rebase
'
that is answered here too:
https://git-scm.com/book/en/v2/Git-Branching-Rebasing
(the difference between altering the way version history is recorded)
You had better use find_library command instead of link_directories. Concretely speaking there are two ways:
designate the path within the command
find_library(NAMES gtest PATHS path1 path2 ... pathN)
set the variable CMAKE_LIBRARY_PATH
set(CMAKE_LIBRARY_PATH path1 path2)
find_library(NAMES gtest)
the reason is as flowings:
Note This command is rarely necessary and should be avoided where there are other choices. Prefer to pass full absolute paths to libraries where possible, since this ensures the correct library will always be linked. The find_library() command provides the full path, which can generally be used directly in calls to target_link_libraries(). Situations where a library search path may be needed include: Project generators like Xcode where the user can switch target architecture at build time, but a full path to a library cannot be used because it only provides one architecture (i.e. it is not a universal binary).
Libraries may themselves have other private library dependencies that expect to be found via RPATH mechanisms, but some linkers are not able to fully decode those paths (e.g. due to the presence of things like $ORIGIN).
If a library search path must be provided, prefer to localize the effect where possible by using the target_link_directories() command rather than link_directories(). The target-specific command can also control how the search directories propagate to other dependent targets.
The easiest way to for-each every char
in a String
is to use toCharArray()
:
for (char ch: "xyz".toCharArray()) {
}
This gives you the conciseness of for-each construct, but unfortunately String
(which is immutable) must perform a defensive copy to generate the char[]
(which is mutable), so there is some cost penalty.
From the documentation:
[
toCharArray()
returns] a newly allocated character array whose length is the length of this string and whose contents are initialized to contain the character sequence represented by this string.
There are more verbose ways of iterating over characters in an array (regular for loop, CharacterIterator
, etc) but if you're willing to pay the cost toCharArray()
for-each is the most concise.
I stopped using DECODE
several years ago because it is non-portable. Also, it is less flexible and less readable than a CASE/WHEN
.
However, there is one neat "trick" you can do with decode because of how it deals with NULL. In decode, NULL is equal to NULL. That can be exploited to tell whether two columns are different as below.
select a, b, decode(a, b, 'true', 'false') as same
from t;
A B SAME
------ ------ -----
1 1 true
1 0 false
1 false
null null true
Ok Got it, I downloaded a custom concatenation function and then just referenced its cells
Code
Function concat(useThis As Range, Optional delim As String) As String
' this function will concatenate a range of cells and return one string
' useful when you have a rather large range of cells that you need to add up
Dim retVal, dlm As String
retVal = ""
If delim = Null Then
dlm = ""
Else
dlm = delim
End If
For Each cell In useThis
if cstr(cell.value)<>"" and cstr(cell.value)<>" " then
retVal = retVal & cstr(cell.Value) & dlm
end if
Next
If dlm <> "" Then
retVal = Left(retVal, Len(retVal) - Len(dlm))
End If
concat = retVal
End Function
Sure, Xcode->Preferences and turn on Show line numbers.
Another solution that uses external sort
and copes with any special characters (except for NULs :)). Should work with bash-3.2 and GNU or BSD sort
(sadly, POSIX doesn't include -z
).
local e new_array=()
while IFS= read -r -d '' e; do
new_array+=( "${e}" )
done < <(printf "%s\0" "${array[@]}" | LC_ALL=C sort -z)
First look at the input redirection at the end. We're using printf
built-in to write out the array elements, zero-terminated. The quoting makes sure array elements are passed as-is, and specifics of shell printf
cause it to reuse the last part of format string for each remaining parameter. That is, it's equivalent to something like:
for e in "${array[@]}"; do
printf "%s\0" "${e}"
done
The null-terminated element list is then passed to sort
. The -z
option causes it to read null-terminated elements, sort them and output null-terminated as well. If you needed to get only the unique elements, you can pass -u
since it is more portable than uniq -z
. The LC_ALL=C
ensures stable sort order independently of locale — sometimes useful for scripts. If you want the sort
to respect locale, remove that.
The <()
construct obtains the descriptor to read from the spawned pipeline, and <
redirects the standard input of the while
loop to it. If you need to access the standard input inside the pipe, you may use another descriptor — exercise for the reader :).
Now, back to the beginning. The read
built-in reads output from the redirected stdin. Setting empty IFS
disables word splitting which is unnecessary here — as a result, read
reads the whole 'line' of input to the single provided variable. -r
option disables escape processing that is undesired here as well. Finally, -d ''
sets the line delimiter to NUL — that is, tells read
to read zero-terminated strings.
As a result, the loop is executed once for every successive zero-terminated array element, with the value being stored in e
. The example just puts the items in another array but you may prefer to process them directly :).
Of course, that's just one of the many ways of achieving the same goal. As I see it, it is simpler than implementing complete sorting algorithm in bash and in some cases it will be faster. It handles all special characters including newlines and should work on most of the common systems. Most importantly, it may teach you something new and awesome about bash :).
$('div.target').each(function() {
/* Measure the width of each image. */
var test = $(this).find('.scrolling img').width();
/* Find out how many images there are. */
var testimg = $(this).find('.scrolling img').length;
/* Do the maths. */
var final = (test* testimg)*1.2;
/* Apply the maths to the CSS. */
$(this).find('scrolling').width(final);
});
Here you loop through all your div's with class target and you do the calculations. Within this loop you can simply use $(this)
to indicate the currently selected <div>
tag.
I had the same problem.
I was trying to install dlib on my machine and it gave me this error. The tutorial mentioned in the question leads to downloading visual studio 2017. I solved this by uninstalling VS 2017 and installing VS 2015
One can install VS 2015 via this stackoverflow thread : How to download Visual Studio Community Edition 2015 (not 2017)
You can use:
f.Controls[name];
Where f
is your form variable. That gives you the control with name name
.
try this. m = row, n = col
vector<vector<int>> matrix(m, vector<int>(n));
for(i = 0;i < m; i++)
{
for(j = 0; j < n; j++)
{
cin >> matrix[i][j];
}
cout << endl;
}
cout << "::matrix::" << endl;
for(i = 0; i < m; i++)
{
for(j = 0; j < n; j++)
{
cout << matrix[i][j] << " ";
}
cout << endl;
}
To properly handle SSL certificate validation and avoid application rejection from Google according new Security Policy, Change your code to invoke SslErrorHandler.proceed() whenever the certificate presented by the server meets your expectations, and invoke SslErrorHandler.cancel() otherwise.
For example, I add an alert dialog to make user have confirmed and seems Google no longer shows warning.
@Override
public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
String message = "SSL Certificate error.";
switch (error.getPrimaryError()) {
case SslError.SSL_UNTRUSTED:
message = "The certificate authority is not trusted.";
break;
case SslError.SSL_EXPIRED:
message = "The certificate has expired.";
break;
case SslError.SSL_IDMISMATCH:
message = "The certificate Hostname mismatch.";
break;
case SslError.SSL_NOTYETVALID:
message = "The certificate is not yet valid.";
break;
}
message += " Do you want to continue anyway?";
builder.setTitle("SSL Certificate Error");
builder.setMessage(message);
builder.setPositiveButton("continue", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
handler.proceed();
}
});
builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
handler.cancel();
}
});
final AlertDialog dialog = builder.create();
dialog.show();
}
After this changes it will not show warning.
Just to clarify a bit the difference between is
and runtimeType
. As someone said already (and this was tested with Dart V2+) the following code:
class Foo {
Type get runtimeType => String;
}
main() {
var foo = new Foo();
if (foo is Foo) {
print("it's a foo!");
}
print("type is ${foo.runtimeType}");
}
will output:
it's a foo!
type is String
Which is wrong. Now, I can't see the reason why one should do such a thing...
mode: 'no-cors'
won’t magically make things work. In fact it makes things worse, because one effect it has is to tell browsers, “Block my frontend JavaScript code from looking at contents of the response body and headers under all circumstances.” Of course you almost never want that.
What happens with cross-origin requests from frontend JavaScript is that browsers by default block frontend code from accessing resources cross-origin. If Access-Control-Allow-Origin
is in a response, then browsers will relax that blocking and allow your code to access the response.
But if a site sends no Access-Control-Allow-Origin
in its responses, your frontend code can’t directly access responses from that site. In particular, you can’t fix it by specifying mode: 'no-cors'
(in fact that’ll ensure your frontend code can’t access the response contents).
However, one thing that will work: if you send your request through a CORS proxy.
You can also easily deploy your own proxy to Heroku in literally just 2-3 minutes, with 5 commands:
git clone https://github.com/Rob--W/cors-anywhere.git
cd cors-anywhere/
npm install
heroku create
git push heroku master
After running those commands, you’ll end up with your own CORS Anywhere server running at, for example, https://cryptic-headland-94862.herokuapp.com/
.
Prefix your request URL with your proxy URL; for example:
https://cryptic-headland-94862.herokuapp.com/https://example.com
Adding the proxy URL as a prefix causes the request to get made through your proxy, which then:
https://example.com
.https://example.com
.Access-Control-Allow-Origin
header to the response.The browser then allows the frontend code to access the response, because that response with the Access-Control-Allow-Origin
response header is what the browser sees.
This works even if the request is one that triggers browsers to do a CORS preflight OPTIONS
request, because in that case, the proxy also sends back the Access-Control-Allow-Headers
and Access-Control-Allow-Methods
headers needed to make the preflight successful.
I can hit this endpoint,
http://catfacts-api.appspot.com/api/facts?number=99
via Postman
https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS explains why it is that even though you can access the response with Postman, browsers won’t let you access the response cross-origin from frontend JavaScript code running in a web app unless the response includes an Access-Control-Allow-Origin
response header.
http://catfacts-api.appspot.com/api/facts?number=99 has no Access-Control-Allow-Origin
response header, so there’s no way your frontend code can access the response cross-origin.
Your browser can get the response fine and you can see it in Postman and even in browser devtools—but that doesn’t mean browsers will expose it to your code. They won’t, because it has no Access-Control-Allow-Origin
response header. So you must instead use a proxy to get it.
The proxy makes the request to that site, gets the response, adds the Access-Control-Allow-Origin
response header and any other CORS headers needed, then passes that back to your requesting code. And that response with the Access-Control-Allow-Origin
header added is what the browser sees, so the browser lets your frontend code actually access the response.
So I am trying to pass in an object, to my Fetch which will disable CORS
You don’t want to do that. To be clear, when you say you want to “disable CORS” it seems you actually mean you want to disable the same-origin policy. CORS itself is actually a way to do that — CORS is a way to loosen the same-origin policy, not a way to restrict it.
But anyway, it’s true you can — in just your local environment — do things like give your browser runtime flags to disable security and run insecurely, or you can install a browser extension locally to get around the same-origin policy, but all that does is change the situation just for you locally.
No matter what you change locally, anybody else trying to use your app is still going to run into the same-origin policy, and there’s no way you can disable that for other users of your app.
You most likely never want to use mode: 'no-cors'
in practice except in a few limited cases, and even then only if you know exactly what you’re doing and what the effects are. That’s because what setting mode: 'no-cors'
actually says to the browser is, “Block my frontend JavaScript code from looking into the contents of the response body and headers under all circumstances.” In most cases that’s obviously really not what you want.
As far as the cases when you would want to consider using mode: 'no-cors'
, see the answer at What limitations apply to opaque responses? for the details. The gist of it is that the cases are:
In the limited case when you’re using JavaScript to put content from another origin into a <script>
, <link rel=stylesheet>
, <img>
, <video>
, <audio>
, <object>
, <embed>
, or <iframe>
element (which works because embedding of resources cross-origin is allowed for those) — but for some reason you don’t want to or can’t do that just by having the markup of the document use the resource URL as the href
or src
attribute for the element.
When the only thing you want to do with a resource is to cache it. As alluded to in the answer What limitations apply to opaque responses?, in practice the scenario that applies to is when you’re using Service Workers, in which case the API that’s relevant is the Cache Storage API.
But even in those limited cases, there are some important gotchas to be aware of; see the answer at What limitations apply to opaque responses? for the details.
I have also tried to pass in the object
{ mode: 'opaque'}
There is no mode: 'opaque'
request mode — opaque
is instead just a property of the response, and browsers set that opaque property on responses from requests sent with the no-cors
mode.
But incidentally the word opaque is a pretty explicit signal about the nature of the response you end up with: “opaque” means you can’t see it.
Your "trigger" is doing something that a "trigger" is not suppose to be doing. You can simple have your Sql Server Agent run
DELETE FROM someTable
WHERE ISNUMERIC(someField) = 1
every 1 second or so. While you're at it, how about writing a nice little SP to stop the programming folk from inserting errors into your table. One good thing about SP's is that the parameters are type safe.
Change this:
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Content-Type, Last-Modified</param-value>
</init-param>
To this
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modified</param-value>
</init-param>
I had to do this to get anything to work.
In PLSQL block, columns of select statements must be assigned to variables, which is not the case in SQL statements.
The second BEGIN's SQL statement doesn't have INTO clause and that caused the error.
DECLARE
PROD_ROW_ID VARCHAR (10) := NULL;
VIS_ROW_ID NUMBER;
DSC VARCHAR (512);
BEGIN
SELECT ROW_ID
INTO VIS_ROW_ID
FROM SIEBEL.S_PROD_INT
WHERE PART_NUM = 'S0146404';
BEGIN
SELECT RTRIM (VIS.SERIAL_NUM)
|| ','
|| RTRIM (PLANID.DESC_TEXT)
|| ','
|| CASE
WHEN PLANID.HIGH = 'TEST123'
THEN
CASE
WHEN TO_DATE (PROD.START_DATE) + 30 > SYSDATE
THEN
'Y'
ELSE
'N'
END
ELSE
'N'
END
|| ','
|| 'GB'
|| ','
|| RTRIM (TO_CHAR (PROD.START_DATE, 'YYYY-MM-DD'))
INTO DSC
FROM SIEBEL.S_LST_OF_VAL PLANID
INNER JOIN SIEBEL.S_PROD_INT PROD
ON PROD.PART_NUM = PLANID.VAL
INNER JOIN SIEBEL.S_ASSET NETFLIX
ON PROD.PROD_ID = PROD.ROW_ID
INNER JOIN SIEBEL.S_ASSET VIS
ON VIS.PROM_INTEG_ID = PROD.PROM_INTEG_ID
INNER JOIN SIEBEL.S_PROD_INT VISPROD
ON VIS.PROD_ID = VISPROD.ROW_ID
WHERE PLANID.TYPE = 'Test Plan'
AND PLANID.ACTIVE_FLG = 'Y'
AND VISPROD.PART_NUM = VIS_ROW_ID
AND PROD.STATUS_CD = 'Active'
AND VIS.SERIAL_NUM IS NOT NULL;
END;
END;
/
References
http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/static.htm#LNPLS00601 http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/selectinto_statement.htm#CJAJAAIG http://pls-00428.ora-code.com/
You can't do this with jQuery ajax, but with native XMLHttpRequest.
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if (this.readyState == 4 && this.status == 200){
//this.response is what you're looking for
handler(this.response);
console.log(this.response, typeof this.response);
var img = document.getElementById('img');
var url = window.URL || window.webkitURL;
img.src = url.createObjectURL(this.response);
}
}
xhr.open('GET', 'http://jsfiddle.net/img/logo.png');
xhr.responseType = 'blob';
xhr.send();
EDIT
So revisiting this topic, it seems it is indeed possible to do this with jQuery 3
jQuery.ajax({_x000D_
url:'https://images.unsplash.com/photo-1465101108990-e5eac17cf76d?ixlib=rb-0.3.5&q=85&fm=jpg&crop=entropy&cs=srgb&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=471ae675a6140db97fea32b55781479e',_x000D_
cache:false,_x000D_
xhr:function(){// Seems like the only way to get access to the xhr object_x000D_
var xhr = new XMLHttpRequest();_x000D_
xhr.responseType= 'blob'_x000D_
return xhr;_x000D_
},_x000D_
success: function(data){_x000D_
var img = document.getElementById('img');_x000D_
var url = window.URL || window.webkitURL;_x000D_
img.src = url.createObjectURL(data);_x000D_
},_x000D_
error:function(){_x000D_
_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>_x000D_
<img id="img" width=100%>
_x000D_
or
use xhrFields to set the responseType
jQuery.ajax({_x000D_
url:'https://images.unsplash.com/photo-1465101108990-e5eac17cf76d?ixlib=rb-0.3.5&q=85&fm=jpg&crop=entropy&cs=srgb&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=471ae675a6140db97fea32b55781479e',_x000D_
cache:false,_x000D_
xhrFields:{_x000D_
responseType: 'blob'_x000D_
},_x000D_
success: function(data){_x000D_
var img = document.getElementById('img');_x000D_
var url = window.URL || window.webkitURL;_x000D_
img.src = url.createObjectURL(data);_x000D_
},_x000D_
error:function(){_x000D_
_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>_x000D_
<img id="img" width=100%>
_x000D_
Use the FirstOrDefault selector.
var list = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var firstEven = list.FirstOrDefault(n => n % 2 == 0);
if (firstEven == 0)
Console.WriteLine("no even number");
else
Console.WriteLine("first even number is {0}", firstEven);
Just pass in a predicate to the First or FirstOrDefault method and it'll happily go round' the list and picks the first match for you.
If there isn't a match, FirstOrDefault will returns the default value of whatever datatype the list items is.
Hope this helps :-)
Besides $rootScope and services, there is a clean and easy alternative solution to extend angular to add the shared data:
in the controllers:
angular.sharedProperties = angular.sharedProperties
|| angular.extend(the-properties-objects);
This properties belong to 'angular' object, separated from the scopes, and can be shared in scopes and services.
1 benefit of it that you don't have to inject the object: they are accessible anywhere immediately after your defination!
As Per documentation of moment js,
There is Precise Range plugin, written by Rob Dawson, can be used to display exact, human-readable representations of date/time ranges, url :http://codebox.org.uk/pages/moment-date-range-plugin
moment("2014-01-01 12:00:00").preciseDiff("2015-03-04 16:05:06");
// 1 year 2 months 3 days 4 hours 5 minutes 6 seconds
moment.preciseDiff("2014-01-01 12:00:00", "2014-04-20 12:00:00");
// 3 months 19 days
To choose a different location or file type (e.g. PNG or SVG) for the favicon:
One reason can be that you want to have the icon in a specific location, perhaps in the images folder or something alike. For example:
<link rel="icon" href="_/img/favicon.png">
This diferent location may even be a CDN, just like SO seems to do with <link rel="shortcut icon" href="http://cdn.sstatic.net/stackoverflow/img/favicon.ico">
.
To learn more about using other file types like PNG check out this question.
For cache busting purposes:
Add a query string to the path for cache-busting purposes:
<link rel="icon" href="/favicon.ico?v=1.1">
Favicons are very heavily cached and this a great way to ensure a refresh.
Footnote about default location:
As far as the first bit of the question: all modern browsers would detect a favicon at the default location, so that's not a reason to use a link
for it.
Footnote about rel="icon"
:
As indicated by @Semanino's answer, using rel="shortcut icon"
is an old technique which was required by older versions of Internet Explorer, but in most cases can be replaced by the more correct rel="icon"
instruction. The article @Semanino based this on properly links to the appropriate spec which shows a rel
value of shortcut
isn't a valid option.
A possible and tested solution for merging branchB into our checked-out branchA:
# in case branchA is not our current branch
git checkout branchA
# make merge commit but without conflicts!!
# the contents of 'ours' will be discarded later
git merge -s ours branchB
# make temporary branch to merged commit
git branch branchTEMP
# get contents of working tree and index to the one of branchB
git reset --hard branchB
# reset to our merged commit but
# keep contents of working tree and index
git reset --soft branchTEMP
# change the contents of the merged commit
# with the contents of branchB
git commit --amend
# get rid off our temporary branch
git branch -D branchTEMP
# verify that the merge commit contains only contents of branchB
git diff HEAD branchB
To automate it you can wrap it into a script using branchA and branchB as arguments.
This solution preserves the first and second parent of the merge commit, just as you would expect of git merge -s theirs branchB
.
dynamic version
ALTER PROCEDURE [dbo].[ReseedTableIdentityCol](@p_table varchar(max))-- RETURNS int
AS
BEGIN
-- Declare the return variable here
DECLARE @sqlCommand nvarchar(1000)
DECLARE @maxVal INT
set @sqlCommand = 'SELECT @maxVal = ISNULL(max(ID),0)+1 from '+@p_table
EXECUTE sp_executesql @sqlCommand, N'@maxVal int OUTPUT',@maxVal=@maxVal OUTPUT
DBCC CHECKIDENT(@p_table, RESEED, @maxVal)
END
exec dbo.ReseedTableIdentityCol @p_table='Junk'
Try this :
sc delete Apache2.4
or try this :
C:\Apache24\bin>httpd -k uninstall
hope this will be helpful
Here's an example using Oracle syntax:
First let's create a table COUNTRY
CREATE TABLE TBL_COUNTRY ( COUNTRY_ID VARCHAR2 (50) NOT NULL ) ;
ALTER TABLE TBL_COUNTRY ADD CONSTRAINT COUNTRY_PK PRIMARY KEY ( COUNTRY_ID ) ;
Create the table PROVINCE
CREATE TABLE TBL_PROVINCE(
PROVINCE_ID VARCHAR2 (50) NOT NULL ,
COUNTRY_ID VARCHAR2 (50)
);
ALTER TABLE TBL_PROVINCE ADD CONSTRAINT PROVINCE_PK PRIMARY KEY ( PROVINCE_ID ) ;
ALTER TABLE TBL_PROVINCE ADD CONSTRAINT PROVINCE_COUNTRY_FK FOREIGN KEY ( COUNTRY_ID ) REFERENCES TBL_COUNTRY ( COUNTRY_ID ) ;
This runs perfectly fine in Oracle. Notice the COUNTRY_ID foreign key in the second table doesn't have "NOT NULL".
Now to insert a row into the PROVINCE table, it's sufficient to only specify the PROVINCE_ID. However, if you chose to specify a COUNTRY_ID as well, it must exist already in the COUNTRY table.
Use the FULL path to the folder in your If Not Exist code. Then you won't even have to CD anymore:
If Not Exist "C:\Documents and Settings\John\Start Menu\Programs\SoftWareFolder\"
JSON.parse
has two parameters. The second parameter, reviver, is a transform function that can be formatted output format we want. See ECMA specification here.
In reviver function:
this
is the object containing the property being processed as this function, and the property name as a string, the property value as arguments of this function.const json = '[{"_id":"5078c3a803ff4197dc81fbfb","email":"[email protected]","image":"some_image_url","name":"Name 1"},{"_id":"5078c3a803ff4197dc81fbfc","email":"[email protected]","image":"some_image_url","name":"Name 2"}]';
const obj = JSON.parse(json, function(k, v) {
if (k === "_id") {
this.id = v;
return; # if return undefined, orignal property will be removed
}
return v;
});
const res = JSON.stringify(obj);
console.log(res)
output:
[{"email":"[email protected]","image":"some_image_url","name":"Name 1","id":"5078c3a803ff4197dc81fbfb"},{"email":"[email protected]","image":"some_image_url","name":"Name 2","id":"5078c3a803ff4197dc81fbfc"}]
max-width
refers to the width of the viewport and can be used to target specific sizes or orientations in conjunction with max-height
. Using multiple max-width
(or min-width
) conditions you could change the page styling as the browser is resized or the orientation changes on a device like an iPhone.
max-device-width
refers to the viewport size of the device regardless of orientation, current scale or resizing. This will not change on a device so cannot be used to switch style sheets or CSS directives as the screen is rotated or resized.
I believe the best way to do this is to use the LocalTimezone
class defined in the datetime.tzinfo
documentation (goto http://docs.python.org/library/datetime.html#tzinfo-objects and scroll down to the "Example tzinfo classes" section):
Assuming Local
is an instance of LocalTimezone
t = datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=utc)
local_t = t.astimezone(Local)
then str(local_t)
gives:
'2009-07-11 04:44:59.193982+10:00'
which is what you want.
(Note: this may look weird to you because I'm in New South Wales, Australia which is 10 or 11 hours ahead of UTC)
Here is very simple javascript. It works fine for me :
// JavaScript:
function sFocus (field) {
if(field.value == 'Enter your search') {
field.value = '';
}
field.className = "darkinput";
}
function sBlur (field) {
if (field.value == '') {
field.value = 'Enter your search';
field.className = "lightinput";
}
else {
field.className = "darkinput";
}
}
// HTML
<form>
<label class="screen-reader-text" for="s">Search for</label>
<input
type="text"
class="lightinput"
onfocus="sFocus(this)"
onblur="sBlur(this)"
value="Enter your search" name="s" id="s"
/>
</form>
def remove_prefix(str, prefix):
if str.startswith(prefix):
return str[len(prefix):]
else:
return str
As an aside note, str
is a bad name for a variable because it shadows the str
type.
It happens when you have a file with the same name as Makefile target name in the directory where the Makefile is present.
I think you want a pipelined table function.
Something like this:
CREATE OR REPLACE PACKAGE test AS
TYPE measure_record IS RECORD(
l4_id VARCHAR2(50),
l6_id VARCHAR2(50),
l8_id VARCHAR2(50),
year NUMBER,
period NUMBER,
VALUE NUMBER);
TYPE measure_table IS TABLE OF measure_record;
FUNCTION get_ups(foo NUMBER)
RETURN measure_table
PIPELINED;
END;
CREATE OR REPLACE PACKAGE BODY test AS
FUNCTION get_ups(foo number)
RETURN measure_table
PIPELINED IS
rec measure_record;
BEGIN
SELECT 'foo', 'bar', 'baz', 2010, 5, 13
INTO rec
FROM DUAL;
-- you would usually have a cursor and a loop here
PIPE ROW (rec);
RETURN;
END get_ups;
END;
For simplicity I removed your parameters and didn't implement a loop in the function, but you can see the principle.
Usage:
SELECT *
FROM table(test.get_ups(0));
L4_ID L6_ID L8_ID YEAR PERIOD VALUE
----- ----- ----- ---------- ---------- ----------
foo bar baz 2010 5 13
1 row selected.
Run the following command in terminal:
sudo ln -s /usr/share/phpmyadmin /var/www/html/
Some of my dynamic SOAP requests have been getting out of control recently. With the uncompressed SOAP being about 14MB and compressed 3MB.
I noticed that in Fiddler when I compressed my request under Transformer
it came to about 470KB instead of the 3MB - so I figured there must be some way to get better compression.
Eventually found this very informative blog post
http://weblogs.asp.net/owscott/iis-7-compression-good-bad-how-much
I went ahead and ran this commnd (followed by iisreset):
C:\Windows\System32\Inetsrv\Appcmd.exe set config -section:httpCompression -[name='gzip'].staticCompressionLevel:9 -[name='gzip'].dynamicCompressionLevel:9
Changed dynamic level up to 9 and now my compressed soap matches what Fiddler gave me - and it about 1/7th the size of the existing compressed file.
Milage will vary, but for SOAP this is a massive massive improvement.
We have an similar application (Wcf -> EF -> database) that does 120 Requests per second easily, so I am more than sure that EF is not your problem here, that being said, I have seen major performance improvements with compiled queries.
If you're using react-native then please try the below commands first before running your project:
Now run your project again. Hope this will work.
There are two ways for delete Database
I use @see to annotate methods of an interface implementation class where the description of the method is already provided in the javadoc of the interface. When we do that I notice that Eclipse pulls up the interface's documentation even when I am looking up method on the implementation reference during code complete
You can do it in a single line
var res = listA.Where(n => !listB.Contains(n));
This is not the fastest way to do it: in case listB
is relatively long, this should be faster:
var setB = new HashSet(listB);
var res = listA.Where(n => !setB.Contains(n));
try $conn = mysql_connect("localhost", "root")
or $conn = mysql_connect("localhost", "root", "")
Object files are codes that are dependent on functions, symbols, and text to run the program. Just like old telex machines, which required teletyping to send signals to other telex machine.
In the same way processor's require binary code to run, object files are like binary code but not linked. Linking creates additional files so that the user does not have to have compile the C language themselves. Users can directly open the exe file once the object file is linked with some compiler like c language , or vb etc.
public ArrayList divineCast(String object) {
try
{
Integer result = Integer.parseInt(object);
ArrayList<Integer> generic = new ArrayList<Integer>();
generic.add(result);
return generic;
}
catch(Exception e)
{
//not a Integer
}
try
{
Float result = Float.parseFloat(object);
ArrayList<Float> generic = new ArrayList<Float>();
generic.add(result);
return generic;
}
catch(Exception e)
{
//not a Float
}
try
{
Double result = Double.parseDouble(object);
ArrayList<Double> generic = new ArrayList<Double>();
generic.add(result);
return generic;
}
catch(Exception e)
{
//not a double
}
try
{
Boolean result = Boolean.parseBoolean(object);
ArrayList<Boolean> generic = new ArrayList<Boolean>();
generic.add(result);
return generic;
}
catch(Exception e)
{
//not a Boolean
}
try
{
String result = String.valueOf(object);
ArrayList<String> generic = new ArrayList<String>();
generic.add(result);
return generic;
}
catch(Exception e)
{
//not a String
}
return null;
}
Then you can call then function as so
String test1 = "0.90854938";
String test2 = "true";
System.out.println(divineCast(test1).get(0));
System.out.println(divineCast(test1).get(0).getClass());
System.out.println(divineCast(test2).get(0));
System.out.println(divineCast(test2).get(0).getClass());
Java doesn't force you to declare the type of ArrayList you are returning in the function declaration, so you can return an ArrayList of any type.
There is no way to decrypt MD5. Well, there is, but no reasonable way to do it. That's kind of the point.
To check if someone is entering the correct password, you need to MD5 whatever the user entered, and see if it matches what you have in the database.
Use genfromtxt
instead. It's a much more general method than loadtxt
:
import numpy as np
print np.genfromtxt('col.txt',dtype='str')
Using the file col.txt
:
foo bar
cat dog
man wine
This gives:
[['foo' 'bar']
['cat' 'dog']
['man' 'wine']]
If you expect that each row has the same number of columns, read the first row and set the attribute filling_values
to fix any missing rows.
I was creating a mp3 player for android, I wanted to update the current time every 500ms so I did it like this
private void update() {
new android.os.Handler().postDelayed(new Runnable() {
@Override
public void run() {
long cur = player.getCurrentPosition();
long dur = player.getDuration();
currentTime = millisecondsToTime(cur);
currentTimeView.setText(currentTime);
if (cur < dur) {
updatePlayer();
}
// update seekbar
seekBar.setProgress( (int) Math.round((float)cur / (float)dur * 100f));
}
}, 500);
}
which calls the same method recursively
It currently only works for the built in system frameworks. If you use #import
like apple still do importing the UIKit
framework in the app delegate it is replaced (if modules is on and its recognised as a system framework) and the compiler will remap it to be a module import and not an import of the header files anyway.
So leaving the #import
will be just the same as its converted to a module import where possible anyway
you can also use
word-break: break-all;
when nothing seems working this works always ;)
Check and try below things. Issue should be resolved.
First of all check your log from bottom of the build window whether any error related to project showing or not. If error showing then fix all of those. Now build and run again fix all of the error comes up. It will eliminate aapt2 issue without changing android gradle plugin to 3.2.0.
Secondly if there is not any project related error showing in the build log but still showing aapt2 error then you can fix it by following below steps.
Update your android gradle plugin in your project level build.gradle
file like below:
classpath 'com.android.tools.build:gradle:3.2.0-alpha13'
Now update android.enableAapt2=true
. Then check and build your project.
Any of these steps should work to fix aapt related issues.
Posting parameters Using POST:-
URL url;
URLConnection urlConn;
DataOutputStream printout;
DataInputStream input;
url = new URL (getCodeBase().toString() + "env.tcgi");
urlConn = url.openConnection();
urlConn.setDoInput (true);
urlConn.setDoOutput (true);
urlConn.setUseCaches (false);
urlConn.setRequestProperty("Content-Type","application/json");
urlConn.setRequestProperty("Host", "android.schoolportal.gr");
urlConn.connect();
//Create JSONObject here
JSONObject jsonParam = new JSONObject();
jsonParam.put("ID", "25");
jsonParam.put("description", "Real");
jsonParam.put("enable", "true");
The part which you missed is in the the following... i.e., as follows..
// Send POST output.
printout = new DataOutputStream(urlConn.getOutputStream ());
printout.writeBytes(URLEncoder.encode(jsonParam.toString(),"UTF-8"));
printout.flush ();
printout.close ();
The rest of the thing you can do it.
How about this
<input type="text" value="placeholder text" onfocus="this.style.color='#000'; _x000D_
this.value='';" style="color: #f00;" />
_x000D_
No CSS or placeholder, but you get the same functionality.
You can use MultiIndex.droplevel
:
>>> cols = pd.MultiIndex.from_tuples([("a", "b"), ("a", "c")])
>>> df = pd.DataFrame([[1,2], [3,4]], columns=cols)
>>> df
a
b c
0 1 2
1 3 4
[2 rows x 2 columns]
>>> df.columns = df.columns.droplevel()
>>> df
b c
0 1 2
1 3 4
[2 rows x 2 columns]
For small scripts an optional way to make it readable is to use a variable like this:
awk -v fmt="'%s'\n" '{printf fmt, $1}'
I found it conveninet in a case where I had to produce many times the single-quote character in the output and the \047 were making it totally unreadable
For fpdf to work properly, there cannot be any output at all beside what fpdf generates. For example, this will work:
<?php
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();
?>
While this will not (note the leading space before the opening <?
tag)
<?php
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();
?>
Also, this will not work either (the echo
will break it):
<?php
echo "About to create pdf";
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();
?>
I'm not sure about the drupal side of things, but I know that absolutely zero non-fpdf output is a requirement for fpdf to work.
add ob_start ();
at the top and at the end add ob_end_flush();
<?php
ob_start();
require('fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();
ob_end_flush();
?>
give me an error as below:
FPDF error: Some data has already been output, can't send PDF
to over come this error:
go to fpdf.php
in that,goto line number 996
function Output($name='', $dest='')
after that make changes like this:
function Output($name='', $dest='') {
ob_clean(); //Output PDF to so
Hi do you have a session header on the top of your page. or any includes If you have then try to add this codes on top pf your page it should works fine.
<?
while (ob_get_level())
ob_end_clean();
header("Content-Encoding: None", true);
?>
cheers :-)
In my case i had set:
ini_set('display_errors', 'on');
error_reporting(E_ALL | E_STRICT);
When i made the request to generate the report, some warnings were displayed in the browser (like the usage of deprecated functions).
Turning off
the display_errors
option, the report was generated successfully.
int intNumber = (int)uintNumber;
Depending on what kind of values you are expecting, you may want to check how big uintNumber is before doing the conversion. An int has a max value of about .5 of a uint.
so if you need want use this code )
import { useRoutes } from "./routes";
import { BrowserRouter as Router } from "react-router-dom";
export const App = () => {
const routes = useRoutes(true);
return (
<Router>
<div className="container">{routes}</div>
</Router>
);
};
// ./routes.js
import { Switch, Route, Redirect } from "react-router-dom";
export const useRoutes = (isAuthenticated) => {
if (isAuthenticated) {
return (
<Switch>
<Route path="/links" exact>
<LinksPage />
</Route>
<Route path="/create" exact>
<CreatePage />
</Route>
<Route path="/detail/:id">
<DetailPage />
</Route>
<Redirect path="/create" />
</Switch>
);
}
return (
<Switch>
<Route path={"/"} exact>
<AuthPage />
</Route>
<Redirect path={"/"} />
</Switch>
);
};
If the answers must be constrained to Google Sheets, this answer works but it has limitations and is clumsy enough UX that it may be hard to get others to adopt. In trying to solve this problem I've found that, for many applications, Airtable solves this by allowing for multi-select columns and the UX is worlds better.
size =1024;
alignment = 16;
aligned_size = size +(alignment -(size % alignment));
mem = malloc(aligned_size);
memset_16aligned(mem, 0, 1024);
free(mem);
Hope this one is the simplest implementation, let me know your comments.
You can bind listeners to one common functions -
$(window).bind("load resize scroll",function(e){
// do stuff
});
Or another way -
$(window).bind({
load:function(){
},
resize:function(){
},
scroll:function(){
}
});
Alternatively, instead of using .bind()
you can use .on()
as bind directly maps to on()
.
And maybe .bind()
won't be there in future jquery versions.
$(window).on({
load:function(){
},
resize:function(){
},
scroll:function(){
}
});
You can't use variable names to bind columns or other system objects, you need dynamic sql
DECLARE @value varchar(10)
SET @value = 'intStep'
DECLARE @sqlText nvarchar(1000);
SET @sqlText = N'SELECT ' + @value + ' FROM dbo.tblBatchDetail'
Exec (@sqlText)
After multiple days of waiting and the problem being persistent. I tried multiple solutions and the below worked for me:
Open your Terminal and put this command
sudo mkdir -p /Users/Shared
sudo chown root:wheel /Users/Shared
sudo chmod -R 1777 /Users/Shared
After I put this, everything works normally.
You can read more here http://www.cnet.com/news/itunes-crashing-with-access-privileges-error-in-10-6-7/
Test with [char]9, such as:
$Tab = [char]9
Write-Output "$Tab hello"
Output:
hello
The accepted answer worked fine for me, but expanding on gimenete's answer, I wanted a generic template I could use to pass through all query/path/header params (just as strings for now), and I came up the following template. I'm posting it here in case someone finds it useful:
#set($keys = [])
#foreach($key in $input.params().querystring.keySet())
#set($success = $keys.add($key))
#end
#foreach($key in $input.params().headers.keySet())
#if(!$keys.contains($key))
#set($success = $keys.add($key))
#end
#end
#foreach($key in $input.params().path.keySet())
#if(!$keys.contains($key))
#set($success = $keys.add($key))
#end
#end
{
#foreach($key in $keys)
"$key": "$util.escapeJavaScript($input.params($key))"#if($foreach.hasNext),#end
#end
}
For 19.1 above on Linux,
Close the App or any window of Smartgit
Go to:
/home/[USERNAME]/.config/smartgit/[CURRENT OR LAST VERSION]
open the file:
preferences.yml
Search for:
"listx: {" in this file
You will find something like this:
listx: {ePP: 1607503071922, eUT: -9223377036854775808, nRT: -9223377036854775808, eV: '20.1', uid: emobf7q63s83}
So now all you need is delete the string inside the {} So it will be like this:
listx: {}
Now save the file and start Smartgit. You will have all repositories and other preferences and you will be asked for set the type of license.
In the interests of completeness there are a couple of other solutions which (in my opinion) are more orthodox than solutions relying on the SqlDependency (and SqlTableDependency) classes. SqlDependency was originally designed to make refreshing distributed webserver caches easier, and so was built to a different set of requirements than if it were designed as an event producer.
There are broadly four options, some of which have not been covered here already:
Change tracking
Change tracking is a lightweight notification mechanism in SQL server. Basically, a database-wide version number is incremented with every change to any data. The version number is then written to the change tracking tables with a bit mask including the names of the columns which were changed. Note, the actual change is not persisted. The notification only contains the information that a particular data entity has changed. Further, because the change table versioning is cumulative, change notifications on individual items are not preserved and are overwritten by newer notifications. This means that if an entity changes twice, change tracking will only know about the most recent change.
In order to capture these changes in c#, polling must be used. The change tracking tables can be polled and each change inspected to see if is of interest. If it is of interest, it is necessary to then go directly to the data to retrieve the current state.
Change Data Capture
Source: https://technet.microsoft.com/en-us/library/bb522489(v=sql.105).aspx
Change data capture (CDC) is more powerful but most costly than change tracking. Change data capture will track and notify changes based on monitoring the database log. Because of this CDC has access to the actual data which has been changed, and keeps a record of all individual changes.
Similarly to change tracking, in order to capture these changes in c#, polling must be used. However, in the case of CDC, the polled information will contain the change details, so it's not strictly necessary to go back to the data itself.
Triggers to queues
Source: https://code.msdn.microsoft.com/Service-Broker-Message-e81c4316
This technique depends on triggers on the tables from which notifications are required. Each change will fire a trigger, and the trigger will write this information to a service broker queue. The queue can then be connected to via C# using the Service Broker Message Processor (sample in the link above).
Unlike change tracking or CDC, triggers to queues do not rely on polling and thereby provides realtime eventing.
CLR
This is a technique I have seen used, but I would not recommend it. Any solution which relies on the CLR to communicate externally is a hack at best. The CLR was designed to make writing complex data processing code easier by leveraging C#. It was not designed to wire in external dependencies like messaging libraries. Furthermore, CLR bound operations can break in clustered environments in unpredictable ways.
This said, it is fairly straightforward to set up, as all you need to do is register the messaging assembly with CLR and then you can call away using triggers or SQL jobs.
In summary...
It has always been a source of amazement to me that Microsoft has steadfastly refused to address this problem space. Eventing from database to code should be a built-in feature of the database product. Considering that Oracle Advanced Queuing combined with the ODP.net MessageAvailable event provided reliable database eventing to C# more than 10 years ago, this is woeful from MS.
The upshot of this is that none of the solutions listed to this question are very nice. They all have technical drawbacks and have a significant setup cost. Microsoft if you're listening, please sort out this sorry state of affairs.
With pandas version 0.16.1
and up, there is now a DataFrame.sample
method built-in:
import pandas
df = pandas.DataFrame(pandas.np.random.random(100))
# Randomly sample 70% of your dataframe
df_percent = df.sample(frac=0.7)
# Randomly sample 7 elements from your dataframe
df_elements = df.sample(n=7)
For either approach above, you can get the rest of the rows by doing:
df_rest = df.loc[~df.index.isin(df_percent.index)]
import functools
class Example:
def wrapper(func):
@functools.wraps(func)
def wrap(self, *args, **kwargs):
print("inside wrap")
return func(self, *args, **kwargs)
return wrap
@wrapper
def method(self):
print("METHOD")
wrapper = staticmethod(wrapper)
e = Example()
e.method()
As has been discussed elsewhere, the .length
property reference is failing because theHref
is undefined. However, be aware of any solution which involves comparing theHref
to undefined
, which is not a keyword in JavaScript and can be redefined.
For a full discussion of checking for undefined variables, see Detecting an undefined object property and the first answer in particular.
I solved the same problem by installing "matplotlib".
i was facing the same problem for a get method i was returning an "int" for the @get method Strangely when i change the return type to String the error was gone.Give it a try and if someone knows the logic behind it kindly share it
I had the same problem and this code solves it. I got this solution from this article but I had to adjust the time on the interval for it to work.
setTimeout(function(){
oTable.fnAdjustColumnSizing();
},50);
you can have an interface hierarchy and then extend your classes from selected interfaces :
public interface IAnimal {
}
public interface IBird implements IAnimal {
}
public interface IHorse implements IAnimal {
}
public interface IPegasus implements IBird,IHorse{
}
and then define your classes as needed, by extending a specific interface :
public class Bird implements IBird {
}
public class Horse implements IHorse{
}
public class Pegasus implements IPegasus {
}
Use this its work fine for me to reload the same page:
<button onClick="window.location.reload();">
Map<Integer, Point2D> hm = new HashMap<Integer, Point2D>();
In newer versions of angular (I'm using 1.3) you can basically set the model and the value and the double binding do all the work this example works like a charm:
angular.module('radioExample', []).controller('ExampleController', ['$scope', function($scope) {_x000D_
$scope.color = {_x000D_
name: 'blue'_x000D_
};_x000D_
}]);
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>_x000D_
<html>_x000D_
<body ng-app="radioExample">_x000D_
<form name="myForm" ng-controller="ExampleController">_x000D_
<input type="radio" ng-model="color.name" value="red"> Red <br/>_x000D_
<input type="radio" ng-model="color.name" value="green"> Green <br/>_x000D_
<input type="radio" ng-model="color.name" value="blue"> Blue <br/>_x000D_
<tt>color = {{color.name}}</tt><br/>_x000D_
</form>_x000D_
</body>_x000D_
</html>
_x000D_
You could try overwriting the CSS and use auto
I don't think this will work with color specifically, but I ran into an issue where i had a parent property such as
.parent {
left: 0px;
}
and then I was able to just define my child with something like
.child {
left: auto;
}
and it effectively "reset" the property.
I recently ran into this problem and ended up using react-native-extended-stylesheet
You can set you rem
value and additional size conditions based on screen size. As per the docs:
// component
const styles = EStyleSheet.create({
text: {
fontSize: '1.5rem',
marginHorizontal: '2rem'
}
});
// app entry
let {height, width} = Dimensions.get('window');
EStyleSheet.build({
$rem: width > 340 ? 18 : 16
});
I think this question is still relevant today. Using the C++11 standard you are now able to implement a instanceof
function without using dynamic_cast
like this:
if (dynamic_cast<B*>(aPtr) != nullptr) {
// aPtr is instance of B
} else {
// aPtr is NOT instance of B
}
But you're still reliant on RTTI
support. So here is my solution for this problem depending on some Macros and Metaprogramming Magic. The only drawback imho is that this approach does not work for multiple inheritance.
InstanceOfMacros.h
#include <set>
#include <tuple>
#include <typeindex>
#define _EMPTY_BASE_TYPE_DECL() using BaseTypes = std::tuple<>;
#define _BASE_TYPE_DECL(Class, BaseClass) \
using BaseTypes = decltype(std::tuple_cat(std::tuple<BaseClass>(), Class::BaseTypes()));
#define _INSTANCE_OF_DECL_BODY(Class) \
static const std::set<std::type_index> baseTypeContainer; \
virtual bool instanceOfHelper(const std::type_index &_tidx) { \
if (std::type_index(typeid(ThisType)) == _tidx) return true; \
if (std::tuple_size<BaseTypes>::value == 0) return false; \
return baseTypeContainer.find(_tidx) != baseTypeContainer.end(); \
} \
template <typename... T> \
static std::set<std::type_index> getTypeIndexes(std::tuple<T...>) { \
return std::set<std::type_index>{std::type_index(typeid(T))...}; \
}
#define INSTANCE_OF_SUB_DECL(Class, BaseClass) \
protected: \
using ThisType = Class; \
_BASE_TYPE_DECL(Class, BaseClass) \
_INSTANCE_OF_DECL_BODY(Class)
#define INSTANCE_OF_BASE_DECL(Class) \
protected: \
using ThisType = Class; \
_EMPTY_BASE_TYPE_DECL() \
_INSTANCE_OF_DECL_BODY(Class) \
public: \
template <typename Of> \
typename std::enable_if<std::is_base_of<Class, Of>::value, bool>::type instanceOf() { \
return instanceOfHelper(std::type_index(typeid(Of))); \
}
#define INSTANCE_OF_IMPL(Class) \
const std::set<std::type_index> Class::baseTypeContainer = Class::getTypeIndexes(Class::BaseTypes());
You can then use this stuff (with caution) as follows:
DemoClassHierarchy.hpp*
#include "InstanceOfMacros.h"
struct A {
virtual ~A() {}
INSTANCE_OF_BASE_DECL(A)
};
INSTANCE_OF_IMPL(A)
struct B : public A {
virtual ~B() {}
INSTANCE_OF_SUB_DECL(B, A)
};
INSTANCE_OF_IMPL(B)
struct C : public A {
virtual ~C() {}
INSTANCE_OF_SUB_DECL(C, A)
};
INSTANCE_OF_IMPL(C)
struct D : public C {
virtual ~D() {}
INSTANCE_OF_SUB_DECL(D, C)
};
INSTANCE_OF_IMPL(D)
The following code presents a small demo to verify rudimentary the correct behavior.
InstanceOfDemo.cpp
#include <iostream>
#include <memory>
#include "DemoClassHierarchy.hpp"
int main() {
A *a2aPtr = new A;
A *a2bPtr = new B;
std::shared_ptr<A> a2cPtr(new C);
C *c2dPtr = new D;
std::unique_ptr<A> a2dPtr(new D);
std::cout << "a2aPtr->instanceOf<A>(): expected=1, value=" << a2aPtr->instanceOf<A>() << std::endl;
std::cout << "a2aPtr->instanceOf<B>(): expected=0, value=" << a2aPtr->instanceOf<B>() << std::endl;
std::cout << "a2aPtr->instanceOf<C>(): expected=0, value=" << a2aPtr->instanceOf<C>() << std::endl;
std::cout << "a2aPtr->instanceOf<D>(): expected=0, value=" << a2aPtr->instanceOf<D>() << std::endl;
std::cout << std::endl;
std::cout << "a2bPtr->instanceOf<A>(): expected=1, value=" << a2bPtr->instanceOf<A>() << std::endl;
std::cout << "a2bPtr->instanceOf<B>(): expected=1, value=" << a2bPtr->instanceOf<B>() << std::endl;
std::cout << "a2bPtr->instanceOf<C>(): expected=0, value=" << a2bPtr->instanceOf<C>() << std::endl;
std::cout << "a2bPtr->instanceOf<D>(): expected=0, value=" << a2bPtr->instanceOf<D>() << std::endl;
std::cout << std::endl;
std::cout << "a2cPtr->instanceOf<A>(): expected=1, value=" << a2cPtr->instanceOf<A>() << std::endl;
std::cout << "a2cPtr->instanceOf<B>(): expected=0, value=" << a2cPtr->instanceOf<B>() << std::endl;
std::cout << "a2cPtr->instanceOf<C>(): expected=1, value=" << a2cPtr->instanceOf<C>() << std::endl;
std::cout << "a2cPtr->instanceOf<D>(): expected=0, value=" << a2cPtr->instanceOf<D>() << std::endl;
std::cout << std::endl;
std::cout << "c2dPtr->instanceOf<A>(): expected=1, value=" << c2dPtr->instanceOf<A>() << std::endl;
std::cout << "c2dPtr->instanceOf<B>(): expected=0, value=" << c2dPtr->instanceOf<B>() << std::endl;
std::cout << "c2dPtr->instanceOf<C>(): expected=1, value=" << c2dPtr->instanceOf<C>() << std::endl;
std::cout << "c2dPtr->instanceOf<D>(): expected=1, value=" << c2dPtr->instanceOf<D>() << std::endl;
std::cout << std::endl;
std::cout << "a2dPtr->instanceOf<A>(): expected=1, value=" << a2dPtr->instanceOf<A>() << std::endl;
std::cout << "a2dPtr->instanceOf<B>(): expected=0, value=" << a2dPtr->instanceOf<B>() << std::endl;
std::cout << "a2dPtr->instanceOf<C>(): expected=1, value=" << a2dPtr->instanceOf<C>() << std::endl;
std::cout << "a2dPtr->instanceOf<D>(): expected=1, value=" << a2dPtr->instanceOf<D>() << std::endl;
delete a2aPtr;
delete a2bPtr;
delete c2dPtr;
return 0;
}
Output:
a2aPtr->instanceOf<A>(): expected=1, value=1
a2aPtr->instanceOf<B>(): expected=0, value=0
a2aPtr->instanceOf<C>(): expected=0, value=0
a2aPtr->instanceOf<D>(): expected=0, value=0
a2bPtr->instanceOf<A>(): expected=1, value=1
a2bPtr->instanceOf<B>(): expected=1, value=1
a2bPtr->instanceOf<C>(): expected=0, value=0
a2bPtr->instanceOf<D>(): expected=0, value=0
a2cPtr->instanceOf<A>(): expected=1, value=1
a2cPtr->instanceOf<B>(): expected=0, value=0
a2cPtr->instanceOf<C>(): expected=1, value=1
a2cPtr->instanceOf<D>(): expected=0, value=0
c2dPtr->instanceOf<A>(): expected=1, value=1
c2dPtr->instanceOf<B>(): expected=0, value=0
c2dPtr->instanceOf<C>(): expected=1, value=1
c2dPtr->instanceOf<D>(): expected=1, value=1
a2dPtr->instanceOf<A>(): expected=1, value=1
a2dPtr->instanceOf<B>(): expected=0, value=0
a2dPtr->instanceOf<C>(): expected=1, value=1
a2dPtr->instanceOf<D>(): expected=1, value=1
The most interesting question which now arises is, if this evil stuff is more efficient than the usage of dynamic_cast
. Therefore I've written a very basic performance measurement app.
InstanceOfPerformance.cpp
#include <chrono>
#include <iostream>
#include <string>
#include "DemoClassHierarchy.hpp"
template <typename Base, typename Derived, typename Duration>
Duration instanceOfMeasurement(unsigned _loopCycles) {
auto start = std::chrono::high_resolution_clock::now();
volatile bool isInstanceOf = false;
for (unsigned i = 0; i < _loopCycles; ++i) {
Base *ptr = new Derived;
isInstanceOf = ptr->template instanceOf<Derived>();
delete ptr;
}
auto end = std::chrono::high_resolution_clock::now();
return std::chrono::duration_cast<Duration>(end - start);
}
template <typename Base, typename Derived, typename Duration>
Duration dynamicCastMeasurement(unsigned _loopCycles) {
auto start = std::chrono::high_resolution_clock::now();
volatile bool isInstanceOf = false;
for (unsigned i = 0; i < _loopCycles; ++i) {
Base *ptr = new Derived;
isInstanceOf = dynamic_cast<Derived *>(ptr) != nullptr;
delete ptr;
}
auto end = std::chrono::high_resolution_clock::now();
return std::chrono::duration_cast<Duration>(end - start);
}
int main() {
unsigned testCycles = 10000000;
std::string unit = " us";
using DType = std::chrono::microseconds;
std::cout << "InstanceOf performance(A->D) : " << instanceOfMeasurement<A, D, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "InstanceOf performance(A->C) : " << instanceOfMeasurement<A, C, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "InstanceOf performance(A->B) : " << instanceOfMeasurement<A, B, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "InstanceOf performance(A->A) : " << instanceOfMeasurement<A, A, DType>(testCycles).count() << unit
<< "\n"
<< std::endl;
std::cout << "DynamicCast performance(A->D) : " << dynamicCastMeasurement<A, D, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "DynamicCast performance(A->C) : " << dynamicCastMeasurement<A, C, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "DynamicCast performance(A->B) : " << dynamicCastMeasurement<A, B, DType>(testCycles).count() << unit
<< std::endl;
std::cout << "DynamicCast performance(A->A) : " << dynamicCastMeasurement<A, A, DType>(testCycles).count() << unit
<< "\n"
<< std::endl;
return 0;
}
The results vary and are essentially based on the degree of compiler optimization. Compiling the performance measurement program using g++ -std=c++11 -O0 -o instanceof-performance InstanceOfPerformance.cpp
the output on my local machine was:
InstanceOf performance(A->D) : 699638 us
InstanceOf performance(A->C) : 642157 us
InstanceOf performance(A->B) : 671399 us
InstanceOf performance(A->A) : 626193 us
DynamicCast performance(A->D) : 754937 us
DynamicCast performance(A->C) : 706766 us
DynamicCast performance(A->B) : 751353 us
DynamicCast performance(A->A) : 676853 us
Mhm, this result was very sobering, because the timings demonstrates that the new approach is not much faster compared to the dynamic_cast
approach. It is even less efficient for the special test case which tests if a pointer of A
is an instance ofA
. BUT the tide turns by tuning our binary using compiler otpimization. The respective compiler command is g++ -std=c++11 -O3 -o instanceof-performance InstanceOfPerformance.cpp
. The result on my local machine was amazing:
InstanceOf performance(A->D) : 3035 us
InstanceOf performance(A->C) : 5030 us
InstanceOf performance(A->B) : 5250 us
InstanceOf performance(A->A) : 3021 us
DynamicCast performance(A->D) : 666903 us
DynamicCast performance(A->C) : 698567 us
DynamicCast performance(A->B) : 727368 us
DynamicCast performance(A->A) : 3098 us
If you are not reliant on multiple inheritance, are no opponent of good old C macros, RTTI and template metaprogramming and are not too lazy to add some small instructions to the classes of your class hierarchy, then this approach can boost your application a little bit with respect to its performance, if you often end up with checking the instance of a pointer. But use it with caution. There is no warranty for the correctness of this approach.
Note: All demos were compiled using clang (Apple LLVM version 9.0.0 (clang-900.0.39.2))
under macOS Sierra on a MacBook Pro Mid 2012.
Edit:
I've also tested the performance on a Linux machine using gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
. On this platform the perfomance benefit was not so significant as on macOs with clang.
Output (without compiler optimization):
InstanceOf performance(A->D) : 390768 us
InstanceOf performance(A->C) : 333994 us
InstanceOf performance(A->B) : 334596 us
InstanceOf performance(A->A) : 300959 us
DynamicCast performance(A->D) : 331942 us
DynamicCast performance(A->C) : 303715 us
DynamicCast performance(A->B) : 400262 us
DynamicCast performance(A->A) : 324942 us
Output (with compiler optimization):
InstanceOf performance(A->D) : 209501 us
InstanceOf performance(A->C) : 208727 us
InstanceOf performance(A->B) : 207815 us
InstanceOf performance(A->A) : 197953 us
DynamicCast performance(A->D) : 259417 us
DynamicCast performance(A->C) : 256203 us
DynamicCast performance(A->B) : 261202 us
DynamicCast performance(A->A) : 193535 us
I'm going to extend the answer given by @Pim.
Add this to the boot method of your AppServiceProvider
<?php
/*
|--------------------------------------------------------------------------
| Extend blade so we can define a variable
| <code>
| @set(name, value)
| </code>
|--------------------------------------------------------------------------
*/
Blade::directive('set', function($expression) {
list($name, $val) = explode(',', $expression);
return "<?php {$name} = {$val}; ?>";
});
This way you don't expose the ability to write any php expression.
You can use this directive like:
@set($var, 10)
@set($var2, 'some string')
IMPORTANT Gotcha for using .contains() on a Collection of Objects, such as Domains. If the Domain declaration contains a EqualsAndHashCode, or some other equals() implementation to determine if those Ojbects are equal, and you've set it like this...
import groovy.transform.EqualsAndHashCode
@EqualsAndHashCode(includes = "settingNameId, value")
then the .contains(myObjectToCompareTo) will evaluate the data in myObjectToCompareTo with the data for each Object instance in the Collection. So, if your equals method isn't up to snuff, as mine was not, you might see unexpected results.
If you are using Netbeans, try to hit the Clean and Build button, let it do the thing and try again. Worked for me!
Hopefully this would get you started
See it live on http://ideone.com/l23He (using stdin)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
const char* getfield(char* line, int num)
{
const char* tok;
for (tok = strtok(line, ";");
tok && *tok;
tok = strtok(NULL, ";\n"))
{
if (!--num)
return tok;
}
return NULL;
}
int main()
{
FILE* stream = fopen("input", "r");
char line[1024];
while (fgets(line, 1024, stream))
{
char* tmp = strdup(line);
printf("Field 3 would be %s\n", getfield(tmp, 3));
// NOTE strtok clobbers tmp
free(tmp);
}
}
Output:
Field 3 would be nazwisko
Field 3 would be Kowalski
Field 3 would be Nowak
>>> a = datetime.timedelta(seconds=65)
datetime.timedelta(0, 65)
>>> str(a)
'0:01:05'
No. Actually it's the "same" as
char array[] = {'O', 'n', 'e', ..... 'i','c','\0');
Every character is a separate element, with an additional \0
character as a string terminator.
I quoted "same", because there are some differences between char * array
and char array[]
.
If you want to read more, take a look at C: differences between char pointer and array
if you want same string output then try below else use without double quotes for proper output
$str = '20130814';
echo date('"F Y"', strtotime($str));
//output : "August 2013"
The answer is nice, but it introduces one problem. Whenever you assign onload
or onerror
directly, it may replace the callback that was assigned earlier. That is why there's a nice method that "registers the specified listener on the EventTarget it's called on" as they say on MDN. You can register as many listeners as you want on the same event.
Let me rewrite the answer a little bit.
function testImage(url) {
var tester = new Image();
tester.addEventListener('load', imageFound);
tester.addEventListener('error', imageNotFound);
tester.src = url;
}
function imageFound() {
alert('That image is found and loaded');
}
function imageNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
Because the external resource loading process is asynchronous, it would be even nicer to use modern JavaScript with promises, such as the following.
function testImage(url) {
// Define the promise
const imgPromise = new Promise(function imgPromise(resolve, reject) {
// Create the image
const imgElement = new Image();
// When image is loaded, resolve the promise
imgElement.addEventListener('load', function imgOnLoad() {
resolve(this);
});
// When there's an error during load, reject the promise
imgElement.addEventListener('error', function imgOnError() {
reject();
})
// Assign URL
imgElement.src = url;
});
return imgPromise;
}
testImage("http://foo.com/bar.jpg").then(
function fulfilled(img) {
console.log('That image is found and loaded', img);
},
function rejected() {
console.log('That image was not found');
}
);
Try this...
<div class="row">
<div class="col-xs-3">
Menu
</div>
<div class="col-xs-9">
<div class="row">
<div class="col-sm-4 col-sm-push-8">
Right content
</div>
<div class="col-sm-8 col-sm-pull-4">
Content
</div>
</div>
</div>
</div>
And for people looking for an answer in December 2018, this is the correct syntax using promises:
Project.update(
// Values to update
{
title: 'a very different title now'
},
{ // Clause
where:
{
id: 1
}
}
).then(count => {
console.log('Rows updated ' + count);
});
//Get the size in bytes
function calculateFileSize($size)
{
$sizes = ['B', 'KB', 'MB', 'GB'];
$count=0;
if ($size < 1024) {
return $size . " " . $sizes[$count];
} else{
while ($size>1024){
$size=round($size/1024,2);
$count++;
}
return $size . " " . $sizes[$count];
}
}
(This info is from The Git User's Manual)
I'm also learning, so this might not be exactly an answer to the question but it might help somebody:
git branch -r
)git fetch
. This will not effect any of you existing, custom created branches.git add origin /path/to/repository
) use git checkout origin/branch_name
, this will override your locals changes on branch branch_name
Kotlin version of the accepted answer...
val res = resources
val text = String.format(res.getString(R.string.welcome_messages), username, mailCount)
R doesn't have a concept of increment operator
(as for example ++ in C). However, it is not difficult to implement one yourself, for example:
inc <- function(x)
{
eval.parent(substitute(x <- x + 1))
}
In that case you would call
x <- 10
inc(x)
However, it introduces function call overhead, so it's slower than typing x <- x + 1
yourself. If I'm not mistaken increment operator
was introduced to make job for compiler easier, as it could convert the code to those machine language instructions directly.
This may be an old post but I realized there is nothing to be returned from the php and your success function does not have input like as follows, success:function(e){}
. I hope that helps you.
You actually cannot draw Container Elements
But you can use a "foreignObject" with a "SVG" inside it to simulate what you need.
<svg width="640" height="480" xmlns="http://www.w3.org/2000/svg">
<foreignObject id="G" width="300" height="200">
<svg>
<rect fill="blue" stroke-width="2" height="112" width="84" y="55" x="55" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke="#000000"/>
<ellipse fill="#FF0000" stroke="#000000" stroke-width="5" stroke-dasharray="null" stroke-linejoin="null" stroke-linecap="null" cx="155" cy="65" id="svg_7" rx="64" ry="56"/>
</svg>
<style>
#G {
background: #cff; border: 1px dashed black;
}
#G:hover {
background: #acc; border: 1px solid black;
}
</style>
</foreignObject>
</svg>
How about creating a new list and adding elements you want to that new list. You cannot remove elements while iterating through a list
Check if the Data
directory is in "C:\ProgramData\MySQL\MySQL Server 5.7\Data"
. This is where it is on my computer. Someone might find this helpful.
Personally I preferred to insert a 1. *
at the very beginning. So the expression become something like this:
1. * (20-10) / (100-10)
As I always do a division for some formula like:
accuracy = 1. * (len(y_val) - sum(y_val)) / len(y_val)
so it is impossible to simply add a .0
like 20.0
. And in my case, wrapping with a float()
may lose a little bit readability.
Use OLEDB Connection to communicate with excel files. it gives better result
using System.Data.OleDb;
string physicalPath = "Your Excel file physical path";
OleDbCommand cmd = new OleDbCommand();
OleDbDataAdapter da = new OleDbDataAdapter();
DataSet ds = new DataSet();
String strNewPath = physicalPath;
String connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strNewPath + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
String query = "SELECT * FROM [Sheet1$]"; // You can use any different queries to get the data from the excel sheet
OleDbConnection conn = new OleDbConnection(connString);
if (conn.State == ConnectionState.Closed) conn.Open();
try
{
cmd = new OleDbCommand(query, conn);
da = new OleDbDataAdapter(cmd);
da.Fill(ds);
}
catch
{
// Exception Msg
}
finally
{
da.Dispose();
conn.Close();
}
The Output data will be stored in dataset, using the dataset object you can easily access the datas. Hope this may helpful
On line 2 change new FileWriter(my_file_name)
to new FileWriter(my_file_name, true)
so you're appending to the file rather than overwriting.
File f = new File("/path/of/the/file");
try {
BufferedWriter bw = new BufferedWriter(new FileWriter(f, true));
bw.append(line);
bw.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
Use This Query :
Select
S.name + '.' + T.name As TableName ,
SUM( P.rows ) As RowCont
From sys.tables As T
Inner Join sys.partitions As P On ( P.OBJECT_ID = T.OBJECT_ID )
Inner Join sys.schemas As S On ( T.schema_id = S.schema_id )
Where
( T.is_ms_shipped = 0 )
AND
( P.index_id IN (1,0) )
And
( T.type = 'U' )
Group By S.name , T.name
Order By SUM( P.rows ) Desc
I believe that the intention of AngularJS inputs and the ngModel
direcive is that invalid input should never end up in the model. The model should always be valid. The problem with having invalid model is that we might have watchers that fire and take (inappropriate) actions based on invalid model.
As I see it, the proper solution here is to plug into the $parsers
pipeline and make sure that invalid input doesn't make it into the model. I'm not sure how did you try to approach things or what exactly didn't work for you with $parsers
but here is a simple directive that solves your problem (or at least my understanding of the problem):
app.directive('customValidation', function(){
return {
require: 'ngModel',
link: function(scope, element, attrs, modelCtrl) {
modelCtrl.$parsers.push(function (inputValue) {
var transformedInput = inputValue.toLowerCase().replace(/ /g, '');
if (transformedInput!=inputValue) {
modelCtrl.$setViewValue(transformedInput);
modelCtrl.$render();
}
return transformedInput;
});
}
};
});
As soon as the above directive is declared it can be used like so:
<input ng-model="sth" ng-trim="false" custom-validation>
As in solution proposed by @Valentyn Shybanov we need to use the ng-trim
directive if we want to disallow spaces at the beginning / end of the input.
The advantage of this approach is 2-fold:
Could be because of restoring SQL Server 2012 version backup file into SQL Server 2008 R2 or even less.
You'll get that error once your numbers are greater than sys.maxsize
:
>>> p = [sys.maxsize]
>>> preds[0] = p
>>> p = [sys.maxsize+1]
>>> preds[0] = p
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OverflowError: Python int too large to convert to C long
You can confirm this by checking:
>>> import sys
>>> sys.maxsize
2147483647
To take numbers with larger precision, don't pass an int type which uses a bounded C integer behind the scenes. Use the default float:
>>> preds = np.zeros((1, 3))
These lines give the following output:
Boolean(1).toString(); // true
Boolean(0).toString(); // false
The problem may also come from that you haven't set MAVEN_HOME
environment variable. So the Maven embedded in Eclipse can't do its job to download the archetype.Check if that variable is set upfront.
For your case, and 99.9% of all others elclanrs
answer is correct.
But because undefined
is a valid value, if someone were to test for an uninitialized variable
var pagetype; //== undefined
if (typeof pagetype === 'undefined') //true
the only 100% reliable way to determine if a var exists is to catch the exception;
var exists = false;
try { pagetype; exists = true;} catch(e) {}
if (exists && ...) {}
But I would never write it this way
You need to use the val()
function to get the textbox value. text
does not exist as a property only as a function and even then its not the correct function to use in this situation.
var from = $("input#fromAddress").val()
val()
is the standard function for getting the value of an input.
Both this question And this question try to answer this.
The recap is that Oracle has a built in function for this, with Sql Server you are stuck either defining a user-defined-function or using case statements.
pip
/ conda
After extensively documenting a similar problem with Git (How can I make git accept a self signed certificate?), here we are again behind a corporate firewall with a proxy giving us a MitM "attack" that we should trust and:
NEVER disable all SSL verification!
This creates a bad security culture. Don't be that person.
pip config set global.cert path/to/ca-bundle.crt
pip config list
conda config --set ssl_verify path/to/ca-bundle.crt
conda config --show ssl_verify
# Bonus while we are here...
git config --global http.sslVerify true
git config --global http.sslCAInfo path/to/ca-bundle.crt
But where do we get ca-bundle.crt
?
cURL publishes an extract of the Certificate Authorities bundled with Mozilla Firefox
https://curl.haxx.se/docs/caextract.html
I recommend you open up this cacert.pem
file in a text editor as we will need to add our self-signed CA to this file.
Certificates are a document complying with X.509 but they can be encoded to disk a few ways. The below article is a good read but the short version is that we are dealing with the base64 encoding which is often called PEM in the file extensions. You will see it has the format:
----BEGIN CERTIFICATE----
....
base64 encoded binary data
....
----END CERTIFICATE----
Below are a few options on how to get our self signed certificate:
echo quit | openssl s_client -showcerts -servername "curl.haxx.se" -connect curl.haxx.se:443 > cacert.pem
Thanks to this answer and the linked blog, it shows steps (on Windows) how to view the certificate and then copy to file using the base64 PEM encoding option.
Copy the contents of this exported file and paste it at the end of your cacerts.pem
file.
For consistency rename this file cacerts.pem
--> ca-bundle.crt
and place it somewhere easy like:
# Windows
%USERPROFILE%\certs\ca-bundle.crt
# or *nix
$HOME/certs/cabundle.crt
Thanks to all the brilliant answers in:
How to get response SSL certificate from requests in python?
I have put together the following to attempt to take it a step further.
https://github.com/neozenith/get-ca-py
Set the configuration in pip and conda so that it knows where this CA store resides with our extra self-signed CA.
pip config set global.cert %USERPROFILE%\certs\ca-bundle.crt
conda config --set ssl_verify %USERPROFILE%\certs\ca-bundle.crt
OR
pip config set global.cert $HOME/certs/ca-bundle.crt
conda config --set ssl_verify $HOME/certs/ca-bundle.crt
THEN
pip config list
conda config --show ssl_verify
# Hot tip: use -v to show where your pip config file is...
pip config list -v
# Example output for macOS and homebrew installed python
For variant 'global', will try loading '/Library/Application Support/pip/pip.conf'
For variant 'user', will try loading '/Users/jpeak/.pip/pip.conf'
For variant 'user', will try loading '/Users/jpeak/.config/pip/pip.conf'
For variant 'site', will try loading '/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/pip.conf'
I had to also enable "Specify maximum wait time for group policy scripts" and "Display instructions in shutdown scripts as they run" to make it work for me as I explain here.
There's also an XMLAGG
function, which works on versions prior to 11.2. Because WM_CONCAT
is undocumented and unsupported by Oracle, it's recommended not to use it in production system.
With XMLAGG
you can do the following:
SELECT XMLAGG(XMLELEMENT(E,ename||',')).EXTRACT('//text()') "Result"
FROM employee_names
What this does is
ename
column (concatenated with a comma) from the employee_names
table in an xml element (with tag E)Maybe it's is completely possible with only CSS but I prefer to avoid "float" as much as I can because it interferes with it's parent's height.
If you are using jQuery, you can create a simple `wrapN` plugin that is similar to `wrapAll` except it only wraps "N" elements and then breaks and wraps the next "N" elements using a loop. Then set your wrappers class to `display: block;`.
(function ($) {
$.fn.wrapN = function (wrapper, n, start) {
if (wrapper === undefined || n === undefined) return false;
if (start === undefined) start = 0;
for (var i = start; i < $(this).size(); i += n)
$(this).slice(i, i + n).wrapAll(wrapper);
return this;
};
}(jQuery));
$(document).ready(function () {
$("li").wrapN("<span class='break' />", 3);
});
Here is a JSFiddle of the finished product:
Document has already explain the usage. So I am using SQL to explain these methods
Assuming there is an Order (orders)
has many OrderItem (order_items)
.
And you have already build the relationship between them.
// App\Models\Order:
public function orderItems() {
return $this->hasMany('App\Models\OrderItem', 'order_id', 'id');
}
These three methods are all based on a relationship.
Result: with()
return the model object and its related results.
Advantage: It is eager-loading which can prevent the N+1 problem.
When you are using the following Eloquent Builder:
Order::with('orderItems')->get();
Laravel change this code to only two SQL:
// get all orders:
SELECT * FROM orders;
// get the order_items based on the orders' id above
SELECT * FROM order_items WHERE order_items.order_id IN (1,2,3,4...);
And then laravel merge the results of the second SQL as different from the results of the first SQL by foreign key. At last return the collection results.
So if you selected columns without the foreign_key in closure, the relationship result will be empty:
Order::with(['orderItems' => function($query) {
// $query->sum('quantity');
$query->select('quantity'); // without `order_id`
}
])->get();
#=> result:
[{ id: 1,
code: '00001',
orderItems: [], // <== is empty
},{
id: 2,
code: '00002',
orderItems: [], // <== is empty
}...
}]
Has
will return the model's object that its relationship is not empty.
Order::has('orderItems')->get();
Laravel change this code to one SQL:
select * from `orders` where exists (
select * from `order_items` where `order`.`id` = `order_item`.`order_id`
)
whereHas
and orWhereHas
methods to put where
conditions on your has
queries. These methods allow you to add customized constraints to a relationship constraint.
Order::whereHas('orderItems', function($query) {
$query->where('status', 1);
})->get();
Laravel change this code to one SQL:
select * from `orders` where exists (
select *
from `order_items`
where `orders`.`id` = `order_items`.`order_id` and `status` = 1
)