As said before, with JPA, in order to have the chance to have extra columns, you need to use two OneToMany associations, instead of a single ManyToMany relationship. You can also add a column with autogenerated values; this way, it can work as the primary key of the table, if useful.
For instance, the implementation code of the extra class should look like that:
@Entity
@Table(name = "USER_SERVICES")
public class UserService{
// example of auto-generated ID
@Id
@Column(name = "USER_SERVICES_ID", nullable = false)
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long userServiceID;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "USER_ID")
private User user;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "SERVICE_ID")
private Service service;
// example of extra column
@Column(name="VISIBILITY")
private boolean visibility;
public long getUserServiceID() {
return userServiceID;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public Service getService() {
return service;
}
public void setService(Service service) {
this.service = service;
}
public boolean getVisibility() {
return visibility;
}
public void setVisibility(boolean visibility) {
this.visibility = visibility;
}
}
Checking your linked site, you may include a script tag passing a ?var=desiredVarName
parameter which will be set as a global variable containing the IP address:
<script type="text/javascript" src="http://l2.io/ip.js?var=myip"></script>
<!-- ^^^^ -->
<script>alert(myip);</script>
I believe I don't have to say that this can be easily spoofed (through either use of proxies or spoofed request headers), but it is worth noting in any case.
In case your page is served using the https
protocol, most browsers will block content in the same page served using the http
protocol (that includes scripts and images), so the options are rather limited. If you have < 5k hits/day, the Smart IP API can be used. For instance:
<script>
var myip;
function ip_callback(o) {
myip = o.host;
}
</script>
<script src="https://smart-ip.net/geoip-json?callback=ip_callback"></script>
<script>alert(myip);</script>
Edit: Apparently, this https
service's certificate has expired so the user would have to add an exception manually. Open its API directly to check the certificate state: https://smart-ip.net/geoip-json
The most resilient and simple way, in case you have back-end server logic, would be to simply output the requester's IP inside a <script>
tag, this way you don't need to rely on external resources. For example:
PHP:
<script>var myip = '<?php echo $_SERVER['REMOTE_ADDR']; ?>';</script>
There's also a more sturdy PHP solution (accounting for headers that are sometimes set by proxies) in this related answer.
C#:
<script>var myip = '<%= Request.UserHostAddress %>';</script>
On modern browsers (FF >= 3.6, Chrome >= 19.0, Opera >= 12.0, and buggy on Safari), you can use the HTML5 File API. When the value of a file input changes, this API will allow you to check whether the file size is within your requirements. Of course, this, as well as MAX_FILE_SIZE
, can be tampered with so always use server side validation.
<form method="post" enctype="multipart/form-data" action="upload.php">
<input type="file" name="file" id="file" />
<input type="submit" name="submit" value="Submit" />
</form>
<script>
document.forms[0].addEventListener('submit', function( evt ) {
var file = document.getElementById('file').files[0];
if(file && file.size < 10485760) { // 10 MB (this size is in bytes)
//Submit form
} else {
//Prevent default and display error
evt.preventDefault();
}
}, false);
</script>
On the server side, it is impossible to stop an upload from happening from PHP because once PHP has been invoked the upload has already completed. If you are trying to save bandwidth, you can deny uploads from the server side with the ini setting upload_max_filesize
. The trouble with this is this applies to all uploads so you'll have to pick something liberal that works for all of your uploads. The use of MAX_FILE_SIZE
has been discussed in other answers. I suggest reading the manual on it. Do know that it, along with anything else client side (including the javascript check), can be tampered with so you should always have server side (PHP) validation.
On the server side you should validate that the file is within the size restrictions (because everything up to this point except for the INI setting could be tampered with). You can use the $_FILES
array to find out the upload size. (Docs on the contents of $_FILES
can be found below the MAX_FILE_SIZE
docs)
upload.php
<?php
if(isset($_FILES['file'])) {
if($_FILES['file']['size'] > 10485760) { //10 MB (size is also in bytes)
// File too big
} else {
// File within size restrictions
}
}
This works in Python 2.x.
For Python 3 look in the docs:
import urllib.request
with urllib.request.urlopen("http://www.python.org") as url:
s = url.read()
# I'm guessing this would output the html source code ?
print(s)
if (!$("input[name='html_elements']:checked").val()) {
alert('Nothing is checked!');
}
else {
alert('One of the radio buttons is checked!');
}
If you're using greasemonkey, it's possible the page isn't ready for the javascript yet. You may need to use window.onReady.
var inputs;
function doThisWhenReady() {
inputs = document.getElementsByTagName('input');
//Other code here...
}
window.onReady = doThisWhenReady;
For straight HTML, with no JavaScript required:
<a href="#something">Add '#something' to URL</a>
Or, to take your question more literally, to just add '#' to the URL:
<a href="#">Add '#' to URL</a>
There's also oct2py which can call .m files within python
https://pypi.python.org/pypi/oct2py
It requires GNU Octave, which is highly compatible with MATLAB.
Refer to this example taken from - http://www.dzone.com/tutorials/java/log4j/sample-log4j-properties-file-configuration-1.html
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
public class HelloWorld {
static final Logger logger = Logger.getLogger(HelloWorld.class);
static final String path = "src/resources/log4j.properties";
public static void main(String[] args) {
PropertyConfigurator.configure(path);
logger.debug("Sample debug message");
logger.info("Sample info message");
logger.warn("Sample warn message");
logger.error("Sample error message");
logger.fatal("Sample fatal message");
}
}
To change the logger levels - Logger.getRootLogger().setLevel(Level.INFO);
You can define this style in values/styles.xml to perform a more former Splash :
<style name="Theme.UserDialog" parent="android:style/Theme.Dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowNoTitle">true</item>
<item name="android:background">@android:color/transparent</item>
<item name="android:windowBackground">@drawable/trans</item>
</style>
And use it AndroidManifest.xml:
<activity android:name=".SplashActivity"
android:configChanges="orientation"
android:screenOrientation="sensor"
android:theme="@style/Theme.UserDialog">
I have been using google qrcode api for sometime, but I didn't quite like this because it requires me to be on the Internet to access the generated image.
I did a little comand-line research and found out that linux has a command line tool qrencode
for generating qr-codes.
I wrote this little script. And the good part is that the generated image is less than 1KB in size. Well the supplied data is simply a url.
$url = ($_SERVER['HTTPS'] ? "https://" : "http://").$_SERVER['HTTP_HOST'].'/profile.php?id='.$_GET['pid'];
$img = shell_exec('qrencode --output=- -m=1 '.escapeshellarg($url));
$imgData = "data:image/png;base64,".base64_encode($img);
Then in the html I load the image:
<img class="emrQRCode" src="<?=$imgData ?>" />
You just need to have installed it. [most imaging apps on linux would have installed it under the hood without you realizing.
TextView tvCompany = (TextView)findViewById(R.layout.tvCompany);
tvCompany.setTypeface(null,Typeface.BOLD);
You an set it from code. Typeface
//Set Preference
SharedPreferences myPrefs = getSharedPreferences("myPrefs", MODE_WORLD_READABLE);
SharedPreferences.Editor prefsEditor;
prefsEditor = myPrefs.edit();
//strVersionName->Any value to be stored
prefsEditor.putString("STOREDVALUE", strVersionName);
prefsEditor.commit();
//Get Preferenece
SharedPreferences myPrefs;
myPrefs = getSharedPreferences("myPrefs", MODE_WORLD_READABLE);
String StoredValue=myPrefs.getString("STOREDVALUE", "");
Try this..
The most robust mechanism for listing all subclasses of a given class is currently ClassGraph, because it handles the widest possible array of classpath specification mechanisms, including the new JPMS module system. (I am the author.)
List<Class<Animal>> animals;
try (ScanResult scanResult = new ClassGraph().whitelistPackages("com.zoo.animals")
.enableClassInfo().scan()) {
animals = scanResult
.getSubclasses(Animal.class.getName())
.loadClasses(Animal.class);
}
The simplest is to do a PivotChart. Select your array of dates (with a header) and create a new Pivot Chart (Insert / PivotChart / Ok) Then on the field list window, drag and drop the date column in the Axis list first and then in the value list first.
Step 1:
Step 2:
If you need to separate certain elements with spaces you could do something like
print "hello", "there"
Notice the comma between "hello" and "there".
If you want to print a new line (i.e. \n
) you could just use print
without any arguments.
I had the same problem. I tried all of the answers above (and some from other websites). In the end, my issue was that my cache wasn't configured. I found that info in my error log and fixed it by changing the line in the file:
C:\MAMP\bin\apache\conf\extra\http-ssl.conf
There I removed the double quotes from the line:
SSLSessionCache "shmcb:/some/example/path/ssl_scache(512000)"
to:
SSLSessionCache shmcb:/some/example/path/ssl_scache(512000)
and saved with Ctrl+S and closed the file.
Here's the link that helped me: https://wiki.apache.org/httpd/SSLSessionCache
That's not the right way to set the permissions as you are overwriting them with each method call.
Replace this:
mButtonLogin.setReadPermissions("user_friends");
mButtonLogin.setReadPermissions("public_profile");
mButtonLogin.setReadPermissions("email");
mButtonLogin.setReadPermissions("user_birthday");
With the following, as the method setReadPermissions()
accepts an ArrayList:
loginButton.setReadPermissions(Arrays.asList(
"public_profile", "email", "user_birthday", "user_friends"));
Also here is how to query extra data GraphRequest:
private LoginButton loginButton;
private CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.setReadPermissions(Arrays.asList(
"public_profile", "email", "user_birthday", "user_friends"));
callbackManager = CallbackManager.Factory.create();
// Callback registration
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
// App code
GraphRequest request = GraphRequest.newMeRequest(
loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject object, GraphResponse response) {
Log.v("LoginActivity", response.toString());
// Application code
String email = object.getString("email");
String birthday = object.getString("birthday"); // 01/31/1980 format
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,gender,birthday");
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
// App code
Log.v("LoginActivity", "cancel");
}
@Override
public void onError(FacebookException exception) {
// App code
Log.v("LoginActivity", exception.getCause().toString());
}
});
}
EDIT:
One possible problem is that Facebook assumes that your email is invalid. To test it, use the Graph API Explorer and try to get it. If even there you can't get your email, change it in your profile settings and try again. This approach resolved this issue for some developers commenting my answer.
#include<stdio.h>
#include<time.h>
void main()
{
time_t t;
time(&t);
printf("\n current time is : %s",ctime(&t));
}
If you aren't a fan of passing in a string, I prefer how @sesperanto has done it, except to make it even more concise, you could drop Float::INFINITY
in the date range and instead simply use created_at: p[:date]..
Note.where(
user_id: current_user.id,
notetype: p[:note_type],
created_at: p[:date]..
).order(:date, :created_at)
Take note that this will change the query to be >=
instead of >
. If that's a concern, you could always add a unit of time to the date by running something like p[:date] + 1.day..
There are 3 main ways to perform a case-insensitive search in Oracle without using full-text indexes.
Ultimately what method you choose is dependent on your individual circumstances; the main thing to remember is that to improve performance you must index correctly for case-insensitive searching.
You can force all your data to be the same case by using UPPER()
or LOWER()
:
select * from my_table where upper(column_1) = upper('my_string');
or
select * from my_table where lower(column_1) = lower('my_string');
If column_1
is not indexed on upper(column_1)
or lower(column_1)
, as appropriate, this may force a full table scan. In order to avoid this you can create a function-based index.
create index my_index on my_table ( lower(column_1) );
If you're using LIKE then you have to concatenate a %
around the string you're searching for.
select * from my_table where lower(column_1) LIKE lower('my_string') || '%';
This SQL Fiddle demonstrates what happens in all these queries. Note the Explain Plans, which indicate when an index is being used and when it isn't.
From Oracle 10g onwards REGEXP_LIKE()
is available. You can specify the _match_parameter_ 'i'
, in order to perform case-insensitive searching.
In order to use this as an equality operator you must specify the start and end of the string, which is denoted by the carat and the dollar sign.
select * from my_table where regexp_like(column_1, '^my_string$', 'i');
In order to perform the equivalent of LIKE, these can be removed.
select * from my_table where regexp_like(column_1, 'my_string', 'i');
Be careful with this as your string may contain characters that will be interpreted differently by the regular expression engine.
This SQL Fiddle shows you the same example output except using REGEXP_LIKE().
The NLS_SORT parameter governs the collation sequence for ordering and the various comparison operators, including =
and LIKE. You can specify a binary, case-insensitive, sort by altering the session. This will mean that every query performed in that session will perform case-insensitive parameters.
alter session set nls_sort=BINARY_CI
There's plenty of additional information around linguistic sorting and string searching if you want to specify a different language, or do an accent-insensitive search using BINARY_AI.
You will also need to change the NLS_COMP parameter; to quote:
The exact operators and query clauses that obey the NLS_SORT parameter depend on the value of the NLS_COMP parameter. If an operator or clause does not obey the NLS_SORT value, as determined by NLS_COMP, the collation used is BINARY.
The default value of NLS_COMP is BINARY; but, LINGUISTIC specifies that Oracle should pay attention to the value of NLS_SORT:
Comparisons for all SQL operations in the WHERE clause and in PL/SQL blocks should use the linguistic sort specified in the NLS_SORT parameter. To improve the performance, you can also define a linguistic index on the column for which you want linguistic comparisons.
So, once again, you need to alter the session
alter session set nls_comp=LINGUISTIC
As noted in the documentation you may want to create a linguistic index to improve performance
create index my_linguistc_index on my_table
(NLSSORT(column_1, 'NLS_SORT = BINARY_CI'));
This is similar to @rafael-almeida 's answer, but I want to point out that as of requests 2.11+, there are not 3 values that verify
can take, there are actually 4:
True
: validates against requests's internal trusted CAs.False
: bypasses certificate validation completely. (Not recommended)The rest of my answer is about #4, how to use a directory containing certificates to validate:
Obtain the public certificates needed and place them in a directory.
Strictly speaking, you probably "should" use an out-of-band method of obtaining the certificates, but you could also just download them using any browser.
If the server uses a certificate chain, be sure to obtain every single certificate in the chain.
According to the requests documentation, the directory containing the certificates must first be processed with the "rehash" utility (openssl rehash
).
(This requires openssl 1.1.1+, and not all Windows openssl implementations support rehash. If openssl rehash
won't work for you, you could try running the rehash ruby script at https://github.com/ruby/openssl/blob/master/sample/c_rehash.rb , though I haven't tried this. )
I had some trouble with getting requests to recognize my certificates, but after I used the openssl x509 -outform PEM
command to convert the certs to Base64 .pem
format, everything worked perfectly.
You can also just do lazy rehashing:
try:
# As long as the certificates in the certs directory are in the OS's certificate store, `verify=True` is fine.
return requests.get(url, auth=auth, verify=True)
except requests.exceptions.SSLError:
subprocess.run(f"openssl rehash -compat -v my_certs_dir", shell=True, check=True)
return requests.get(url, auth=auth, verify="my_certs_dir")
You could reference controls inside the master page this way:
void Page_Load()
{
ContentPlaceHolder cph;
Literal lit;
cph = (ContentPlaceHolder)Master.FindControl("ContentPlaceHolder1");
if (cph != null) {
lit = (Literal) cph.FindControl("Literal1");
if (lit != null) {
lit.Text = "Some <b>HTML</b>";
}
}
}
In this example you have to put a Literal control in your ContentPlaceholder.
<EditText
android:id="@id/editText" //id of editText
android:gravity="start" // Where to start Typing
android:inputType="textMultiLine" // multiline
android:imeOptions="actionDone" // Keyboard done button
android:minLines="5" // Min Line of editText
android:hint="@string/Enter Data" // Hint in editText
android:layout_width="match_parent" //width editText
android:layout_height="wrap_content" //height editText
/>
This example I find self-explanatory. Notice how await waits for the result and so you miss the Promise being returned.
cryA = crypto.subtle.generateKey({name:'ECDH', namedCurve:'P-384'}, true, ["deriveKey", "deriveBits"])
Promise {<pending>}
cryB = await crypto.subtle.generateKey({name:'ECDH', namedCurve:'P-384'}, true, ["deriveKey", "deriveBits"])
{publicKey: CryptoKey, privateKey: CryptoKey}
Darian Moody has a nice solution to this challenge in his blog post:
a = 1
b = 2
c = True
rules = [a == 1,
b == 2,
c == True]
if all(rules):
print("Success!")
The all() method returns True
when all elements in the given iterable are true. If not, it returns False
.
You can read a little more about it in the python docs here and more information and examples here.
(I also answered the similar question with this info here - How to have multiple conditions for one if statement in python)
command prompt:
C:\Users\admin>java -version (Press Enter>
java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
If you really want to handle with HTTP using Python, I highly recommend Requests: HTTP for Humans. The POST quickstart adapted to your question is:
>>> import requests
>>> r = requests.post("http://bugs.python.org", data={'number': 12524, 'type': 'issue', 'action': 'show'})
>>> print(r.status_code, r.reason)
200 OK
>>> print(r.text[:300] + '...')
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>
Issue 12524: change httplib docs POST example - Python tracker
</title>
<link rel="shortcut i...
>>>
My understanding is that arrays are stored more efficiently (i.e. as contiguous blocks of memory vs. pointers to Python objects), but I am not aware of any performance benefit. Additionally, with arrays you must store primitives of the same type, whereas lists can store anything.
You should include bootstrap-datepicker.js
after bootstrap.js
and you should bind the datepicker
to your control.
$(function(){
$('.datepicker').datepicker({
format: 'mm-dd-yyyy'
});
});
thisTag = _tags.FirstOrDefault(t => t.Key == tag);
is an inefficient and a little bit strange way to find something by key in a dictionary. Looking things up for a Key is the basic function of a Dictionary.
The basic solution would be:
if (_tags.Containskey(tag)) { string myValue = _tags[tag]; ... }
But that requires 2 lookups.
TryGetValue(key, out value)
is more concise and efficient, it only does 1 lookup. And that answers the last part of your question, the best way to do a lookup is:
string myValue;
if (_tags.TryGetValue(tag, out myValue)) { /* use myValue */ }
VS 2017 update, for C# 7 and beyond we can declare the result variable inline:
if (_tags.TryGetValue(tag, out string myValue))
{
// use myValue;
}
// use myValue, still in scope, null if not found
Another approach is in your chtml
<input type="hidden" id="hdnSession" data-value="@Request.RequestContext.HttpContext.Session['someKey']" />
and the script is
var sessionValue= $("#hdnSession").data('value');
or you may access directly by
jQuery(document).ready(function ($) {
var value = '@Request.RequestContext.HttpContext.Session["someKey"]';
});
The Why
java.util.logging has a root logger that defaults to Level.INFO
, and a ConsoleHandler attached to it that also defaults to Level.INFO
.
FINE
is lower than INFO
, so fine messages are not displayed by default.
Solution 1
Create a logger for your whole application, e.g. from your package name or use Logger.getGlobal()
, and hook your own ConsoleLogger to it.
Then either ask root logger to shut up (to avoid duplicate output of higher level messages), or ask your logger to not forward logs to root.
public static final Logger applog = Logger.getGlobal();
...
// Create and set handler
Handler systemOut = new ConsoleHandler();
systemOut.setLevel( Level.ALL );
applog.addHandler( systemOut );
applog.setLevel( Level.ALL );
// Prevent logs from processed by default Console handler.
applog.setUseParentHandlers( false ); // Solution 1
Logger.getLogger("").setLevel( Level.OFF ); // Solution 2
Solution 2
Alternatively, you may lower the root logger's bar.
You can set them by code:
Logger rootLog = Logger.getLogger("");
rootLog.setLevel( Level.FINE );
rootLog.getHandlers()[0].setLevel( Level.FINE ); // Default console handler
Or with logging configuration file, if you are using it:
.level = FINE
java.util.logging.ConsoleHandler.level = FINE
By lowering the global level, you may start seeing messages from core libraries, such as from some Swing or JavaFX components. In this case you may set a Filter on the root logger to filter out messages not from your program.
A bit late to the party, but Krux has created a script for this, called Postscribe. We were able to use this to get past this issue.
jQuery does only make some regexp checking before calling the native browser method window.JSON.parse()
. If that is not available, it uses eval()
or more exactly new Function()
to create a Javascript object.
The opposite of JSON.parse()
is JSON.stringify()
which serializes a Javascript object into a string. jQuery does not have functionality of its own for that, you have to use the browser built-in version or json2.js
from http://www.json.org
JSON.stringify()
is available in all major browsers, but to be compatible with older browsers you still need that fallback.
Your function would work like this:
CREATE OR REPLACE FUNCTION prc_tst_bulk(sql text)
RETURNS TABLE (name text, rowcount integer) AS
$$
BEGIN
RETURN QUERY EXECUTE '
WITH v_tb_person AS (' || sql || $x$)
SELECT name, count(*)::int FROM v_tb_person WHERE nome LIKE '%a%' GROUP BY name
UNION
SELECT name, count(*)::int FROM v_tb_person WHERE gender = 1 GROUP BY name$x$;
END
$$ LANGUAGE plpgsql;
Call:
SELECT * FROM prc_tst_bulk($$SELECT a AS name, b AS nome, c AS gender FROM tbl$$)
You cannot mix plain and dynamic SQL the way you tried to do it. The whole statement is either all dynamic or all plain SQL. So I am building one dynamic statement to make this work. You may be interested in the chapter about executing dynamic commands in the manual.
The aggregate function count()
returns bigint
, but you had rowcount
defined as integer
, so you need an explicit cast ::int
to make this work
I use dollar quoting to avoid quoting hell.
However, is this supposed to be a honeypot for SQL injection attacks or are you seriously going to use it? For your very private and secure use, it might be ok-ish - though I wouldn't even trust myself with a function like that. If there is any possible access for untrusted users, such a function is a loaded footgun. It's impossible to make this secure.
Craig (a sworn enemy of SQL injection!) might get a light stroke, when he sees what you forged from his piece of code in the answer to your preceding question. :)
The query itself seems rather odd, btw. But that's beside the point here.
You can use readfile and output the image headers which you can get from getimagesize like this:
$remoteImage = "http://www.example.com/gifs/logo.gif";
$imginfo = getimagesize($remoteImage);
header("Content-type: {$imginfo['mime']}");
readfile($remoteImage);
The reason you should use readfile here is that it outputs the file directly to the output buffer where as file_get_contents will read the file into memory which is unnecessary in this content and potentially intensive for large files.
here the link to webreports version 12 https://www.nuget.org/packages/Microsoft.ReportViewer.WebForms.v12/12.0.0?_src=template
after the package installed
on your toolbox browse the dll reference it to bin then that's it run the visual studio
Use Brew is always good way to install ANT and other needs. To install type below command on terminal.
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
after Brew installation , type
brew install ant
This will install Ant on your system. Also you will not need to worry about setting up the path.
Also i have documented on the same - How to Install ANT on Mac OS?
I used the plain .css. It worked great. Note that I deleted the following from the bootstrap.min.css:
/* Fade transition for carousel items */
.carousel .item {
left: 0 !important;
-webkit-transition: opacity .4s;
/*adjust timing here */
-moz-transition: opacity .4s;
-o-transition: opacity .4s;
transition: opacity .4s;
}
.carousel-control {
background-image: none !important;
/* remove background gradients on controls */
}
/* Fade controls with items */
.next.left, .prev.right {
opacity: 1;
z-index: 1;
}
.active.left, .active.right {
opacity: 0;
z-index: 2;
}
ES6 syntax with arrow function and interpolation:
var data=["a","b","c"];
$(data).each((index, element) => {
console.log(`current index : ${index} element : ${element}`)
});
FYI for everyone's information
This would have been an appropriate solution to resolve the following error
Received HTTP code 407 from proxy after CONNECT
So the following commands should be necessary
git config --global http.proxyAuthMethod 'basic'
git config --global https.proxy http://user:pass@proxyserver:port
Which would generate the following config
$ cat ~/.gitconfig
[http]
proxy = http://user:pass@proxyserver:port
proxyAuthMethod = basic
I saw this solution after searching at google, search for "A4 CSS page template" (codepen.io). It shows an A4 (A3,A5, also portrait) sized area in the browser, using the <page> tag. Inside this tag the content is shown, but absolute position is still with respect to browser area.
body {_x000D_
background: rgb(204,204,204); _x000D_
}_x000D_
page {_x000D_
background: white;_x000D_
display: block;_x000D_
margin: 0 auto;_x000D_
margin-bottom: 0.5cm;_x000D_
box-shadow: 0 0 0.5cm rgba(0,0,0,0.5);_x000D_
}_x000D_
page[size="A4"] { _x000D_
width: 21cm;_x000D_
height: 29.7cm; _x000D_
}_x000D_
page[size="A4"][layout="portrait"] {_x000D_
width: 29.7cm;_x000D_
height: 21cm; _x000D_
}_x000D_
@media print {_x000D_
body, page {_x000D_
margin: 0;_x000D_
box-shadow: 0;_x000D_
}_x000D_
}
_x000D_
<page size="A4">A4</page>_x000D_
<page size="A4" layout="portrait">A4 portrait</page>
_x000D_
This works for me without any other css/js-library to be included. Works for current browsers (IE, FF, Chrome).
I'd say export your server config in IIS manager:
Move these files to your new server
administration.config
applicationHost.config
configEncKey.key
On the new server, go back to the “Shared Configuration” section and check “Enable shared configuration.” Enter the location in physical path to these files and apply them.
BAM! Go have a beer!
To encode an array that contains special characters, ISO 8859-1 to UTF8. (If utf8_encode & utf8_decode is not what is working for you, this might be an option)
Everything that is in ISO-8859-1 should be converted to UTF8:
$utf8 = utf8_encode('? ??? ??? ????!'); //contains UTF8 & ISO 8859-1 characters;
$iso88591 = mb_convert_encoding($utf8, 'ISO-8859-1', 'UTF-8');
$data = $iso88591;
Encode should work after this:
$encoded_data = json_encode($data);
I like owlstead's original answer, and if you don't like the idea of creating a ByteBuffer
on every method call then you can reuse the ByteBuffer
by calling it's .clear()
and .flip()
methods:
ByteBuffer _intShifter = ByteBuffer.allocate(Integer.SIZE / Byte.SIZE)
.order(ByteOrder.LITTLE_ENDIAN);
public byte[] intToByte(int value) {
_intShifter.clear();
_intShifter.putInt(value);
return _intShifter.array();
}
public int byteToInt(byte[] data)
{
_intShifter.clear();
_intShifter.put(data, 0, Integer.SIZE / Byte.SIZE);
_intShifter.flip();
return _intShifter.getInt();
}
SELECT product FROM Your_table_name WHERE Product LIKE '%XYZ%';
The above statement will show result from a single table. If you want to add more tables then simply use the UNION statement.
SELECT product FROM Table_name_1
WHERE Product LIKE '%XYZ%'
UNION
SELECT product FROM Table_name_2
WHERE Product LIKE '%XYZ%'
UNION
SELECT product FROM Table_name_3
WHERE Product LIKE '%XYZ%'
... and so on
This still loops through the cartesian product of the two lists, but it does it one line:
>>> lines1 = ['soup', 'butter', 'venison']
>>> lines2 = ['prune', 'rye', 'turkey']
>>> search_strings = ['a', 'b', 'c']
>>> any(s in l for l in lines1 for s in search_strings)
True
>>> any(s in l for l in lines2 for s in search_strings)
False
This also have the advantage that any
short-circuits, and so the looping stops as soon as a match is found. Also, this only finds the first occurrence of a string from search_strings
in linesX
. If you want to find multiple occurrences you could do something like this:
>>> lines3 = ['corn', 'butter', 'apples']
>>> [(s, l) for l in lines3 for s in search_strings if s in l]
[('c', 'corn'), ('b', 'butter'), ('a', 'apples')]
If you feel like coding something more complex, it seems the Aho-Corasick algorithm can test for the presence of multiple substrings in a given input string. (Thanks to Niklas B. for pointing that out.) I still think it would result in quadratic performance for your use-case since you'll still have to call it multiple times to search multiple lines. However, it would beat the above (cubic, on average) algorithm.
Just set the SelectedPath property before calling ShowDialog.
fdbLocation.SelectedPath = myFolder;
df.loc will do the job :
>>> df = pd.DataFrame(np.random.randn(3, 2), columns=['A','B'])
>>> df
A B
0 -0.269036 0.534991
1 0.069915 -1.173594
2 -1.177792 0.018381
>>> df.loc[13] = df.loc[1]
>>> df
A B
0 -0.269036 0.534991
1 0.069915 -1.173594
2 -1.177792 0.018381
13 0.069915 -1.173594
You can save the loop, initialization is already made to 0. Even for a local variable.
But please correct the place where you place the brackets, for readability (recognized best-practice):
int[] arr = new int[10];
It really depends on what you mean by "learn". You could probably spend a week and get a couple of pages up on the web that had some minimal level of interactivity to save information entered by the user in some database, and then have some other pages for querying and displaying the information. You could then spend the next 10 years of your life learning all the intricacies of the .Net framework, SQL, and mastering using the IDE.
In case you are dealing with a legacy system, or you have too many places to switch to PreparedStatement
s in too little time - i.e. if there is an obstacle to using the best practice suggested by other answers, you can try AntiSQLFilter
Why don't you want to use the back stack? If there is an underlying problem or confusion maybe we can clear it up for you.
If you want to stick with your requirement just override your Activity's onBackPressed() method and call whatever method you're calling when the back arrow in your ActionBar gets clicked.
EDIT: How to solve the "black screen" fragment back stack problem:
You can get around that issue by adding a backstack listener to the fragment manager. That listener checks if the fragment back stack is empty and finishes the Activity accordingly:
You can set that listener in your Activity's onCreate method:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FragmentManager fm = getFragmentManager();
fm.addOnBackStackChangedListener(new OnBackStackChangedListener() {
@Override
public void onBackStackChanged() {
if(getFragmentManager().getBackStackEntryCount() == 0) finish();
}
});
}
It could be the self-closing tag of link at the end, try:
<link href="https://fonts.googleapis.com/css?family=Bungee+Inline" rel="stylesheet"/>
and in your main.css file try:
body,div {
font-family: 'Bungee Inline', cursive;
}
On Linux you can mount other directories instead of symlinking them
mount --bind olddir newdir
See https://superuser.com/questions/842642 for more details.
I don't know if something similar is available for other OSes. I also tried using Samba to share a folder and remount it into the Docker context which worked as well.
updated based on Xbello
comment:
string = my_string.rstrip('\r\n')
read more here
If you return a serializable object, WebAPI will automatically send JSON or XML based on the Accept header that your client sends.
If you return a string, you'll get a string.
The following was tested for IIS 8.5 and Windows 8.1.
As of IIS 7, Windows recommends restarting IIS via net stop/start
. Via the command prompt (as Administrator):
> net stop WAS
> net start W3SVC
net stop WAS
will stop W3SVC
as well. Then when starting, net start W3SVC
will start WAS
as a dependency.
Using jQuery will make this simpler.
The following code will take an array of arrays and store convert them into rows and cells.
$.getJSON(url , function(data) {
var tbl_body = "";
var odd_even = false;
$.each(data, function() {
var tbl_row = "";
$.each(this, function(k , v) {
tbl_row += "<td>"+v+"</td>";
});
tbl_body += "<tr class=\""+( odd_even ? "odd" : "even")+"\">"+tbl_row+"</tr>";
odd_even = !odd_even;
});
$("#target_table_id tbody").html(tbl_body);
});
You could add a check for the keys you want to exclude by adding something like
var expected_keys = { key_1 : true, key_2 : true, key_3 : false, key_4 : true };
at the start of the getJSON callback function and adding:
if ( ( k in expected_keys ) && expected_keys[k] ) {
...
}
around the tbl_row += line.
Edit: Was assigning a null variable previously
Edit: Version based on Timmmm's injection-free contribution.
$.getJSON(url , function(data) {
var tbl_body = document.createElement("tbody");
var odd_even = false;
$.each(data, function() {
var tbl_row = tbl_body.insertRow();
tbl_row.className = odd_even ? "odd" : "even";
$.each(this, function(k , v) {
var cell = tbl_row.insertCell();
cell.appendChild(document.createTextNode(v.toString()));
});
odd_even = !odd_even;
});
$("#target_table_id").append(tbl_body); //DOM table doesn't have .appendChild
});
Try command + t
.
It works for me.
It works for 5.7.8:
mysql> create table t1(updated datetime NOT NULL DEFAULT '0000-00-00 00:00:00');
Query OK, 0 rows affected (0.01 sec)
mysql> show create table t1;
+-------+-------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-------+-------------------------------------------------------------------------------------------------------------------------+
| t1 | CREATE TABLE `t1` (
`updated` datetime NOT NULL DEFAULT '0000-00-00 00:00:00'
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 |
+-------+-------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> select version();
+-----------+
| version() |
+-----------+
| 5.7.8-rc |
+-----------+
1 row in set (0.00 sec)
You can create a SQLFiddle to recreate your issue.
If it works for MySQL 5.6 and 5.7.8, but fails on 5.7.11. Then it probably is a regression bug for 5.7.11.
You could try to extract columns as list, massage this as you want, and reindex your dataframe:
>>> cols = df.columns.tolist()
>>> cols = [cols[-1]]+cols[:-1] # or whatever change you need
>>> df.reindex(columns=cols)
n l v
0 0 a 1
1 0 b 2
2 0 c 1
3 0 d 2
EDIT: this can be done in one line ; however, this looks a bit ugly. Maybe some cleaner proposal may come...
>>> df.reindex(columns=['n']+df.columns[:-1].tolist())
n l v
0 0 a 1
1 0 b 2
2 0 c 1
3 0 d 2
AFAIK there is no "double break" or similar construct in C++. The closest would be a goto
- which, while it has a bad connotation to its name, exists in the language for a reason - as long as it's used carefully and sparingly, it's a viable option.
He who is Shy* gave you the germ of an answer, but only the germ. The basic technique for converting a value into a string in the C pre-processor is indeed via the '#' operator, but a simple transliteration of the proposed solution gets a compilation error:
#define TEST_FUNC test_func
#define TEST_FUNC_NAME #TEST_FUNC
#include <stdio.h>
int main(void)
{
puts(TEST_FUNC_NAME);
return(0);
}
The syntax error is on the 'puts()' line - the problem is a 'stray #' in the source.
In section 6.10.3.2 of the C standard, 'The # operator', it says:
Each # preprocessing token in the replacement list for a function-like macro shall be followed by a parameter as the next preprocessing token in the replacement list.
The trouble is that you can convert macro arguments to strings -- but you can't convert random items that are not macro arguments.
So, to achieve the effect you are after, you most certainly have to do some extra work.
#define FUNCTION_NAME(name) #name
#define TEST_FUNC_NAME FUNCTION_NAME(test_func)
#include <stdio.h>
int main(void)
{
puts(TEST_FUNC_NAME);
return(0);
}
I'm not completely clear on how you plan to use the macros, and how you plan to avoid repetition altogether. This slightly more elaborate example might be more informative. The use of a macro equivalent to STR_VALUE is an idiom that is necessary to get the desired result.
#define STR_VALUE(arg) #arg
#define FUNCTION_NAME(name) STR_VALUE(name)
#define TEST_FUNC test_func
#define TEST_FUNC_NAME FUNCTION_NAME(TEST_FUNC)
#include <stdio.h>
static void TEST_FUNC(void)
{
printf("In function %s\n", TEST_FUNC_NAME);
}
int main(void)
{
puts(TEST_FUNC_NAME);
TEST_FUNC();
return(0);
}
* At the time when this answer was first written, shoosh's name used 'Shy' as part of the name.
Let's say you're using this HTML5 layout:
<html>
<body>
<header>
<nav><ul>...</ul></nav>
</header>
<article>
<ul>...</ul>
</article>
<footer>
<ul>...</ul>
</footer>
</body>
</html>
You could say in your CSS:
header ul, footer ul, nav ul { list-style-type: none; }
If you're using HTML 4, assign IDs to your DIVs (instead of using the new fancy-pants elements) and change this to:
#header ul, #footer ul, #nav ul { list-style-type: none; }
If you're using a CSS reset stylesheet (like Eric Meyer's), you would actually have to give the list style back, since the reset removes the list style from all lists.
#content ul { list-style-type: disc; margin-left: 1.5em; }
An async version for MVC 5 (i.e. avoiding ActionFilterAttribute, which is not async until MVC 6) and reCAPTCHA 2
ExampleController.cs
public class HomeController : Controller
{
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ContactSubmit(
[Bind(Include = "FromName, FromEmail, FromPhone, Message, ContactId")]
ContactViewModel model)
{
if (!await RecaptchaServices.Validate(Request))
{
ModelState.AddModelError(string.Empty, "You have not confirmed that you are not a robot");
}
if (ModelState.IsValid)
{
...
ExampleView.cshtml
@model MyMvcApp.Models.ContactViewModel
@*This is assuming the master layout places the styles section within the head tags*@
@section Styles {
@Styles.Render("~/Content/ContactPage.css")
<script src='https://www.google.com/recaptcha/api.js'></script>
}
@using (Html.BeginForm("ContactSubmit", "Home",FormMethod.Post, new { id = "contact-form" }))
{
@Html.AntiForgeryToken()
...
<div class="form-group">
@Html.LabelFor(m => m.Message)
@Html.TextAreaFor(m => m.Message, new { @class = "form-control", @cols = "40", @rows = "3" })
@Html.ValidationMessageFor(m => m.Message)
</div>
<div class="row">
<div class="g-recaptcha" data-sitekey='@System.Configuration.ConfigurationManager.AppSettings["RecaptchaClientKey"]'></div>
</div>
<div class="row">
<input type="submit" id="submit-button" class="btn btn-default" value="Send Your Message" />
</div>
}
RecaptchaServices.cs
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Web;
using System.Configuration;
using System.Net.Http;
using System.Net.Http.Headers;
using Newtonsoft.Json;
using System.Runtime.Serialization;
namespace MyMvcApp.Services
{
public class RecaptchaServices
{
//ActionFilterAttribute has no async for MVC 5 therefore not using as an actionfilter attribute - needs revisiting in MVC 6
internal static async Task<bool> Validate(HttpRequestBase request)
{
string recaptchaResponse = request.Form["g-recaptcha-response"];
if (string.IsNullOrEmpty(recaptchaResponse))
{
return false;
}
using (var client = new HttpClient { BaseAddress = new Uri("https://www.google.com") })
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("secret", ConfigurationManager.AppSettings["RecaptchaSecret"]),
new KeyValuePair<string, string>("response", recaptchaResponse),
new KeyValuePair<string, string>("remoteip", request.UserHostAddress)
});
var result = await client.PostAsync("/recaptcha/api/siteverify", content);
result.EnsureSuccessStatusCode();
string jsonString = await result.Content.ReadAsStringAsync();
var response = JsonConvert.DeserializeObject<RecaptchaResponse>(jsonString);
return response.Success;
}
}
[DataContract]
internal class RecaptchaResponse
{
[DataMember(Name = "success")]
public bool Success { get; set; }
[DataMember(Name = "challenge_ts")]
public DateTime ChallengeTimeStamp { get; set; }
[DataMember(Name = "hostname")]
public string Hostname { get; set; }
[DataMember(Name = "error-codes")]
public IEnumerable<string> ErrorCodes { get; set; }
}
}
}
web.config
<configuration>
<appSettings>
<!--recaptcha-->
<add key="RecaptchaSecret" value="***secret key from https://developers.google.com/recaptcha***" />
<add key="RecaptchaClientKey" value="***client key from https://developers.google.com/recaptcha***" />
</appSettings>
</configuration>
They changed the switch statement (from C/Java/C++) behavior for c#. I guess the reasoning was that people forgot about the fall through and errors were caused. One book I read said to use goto to simulate, but this doesn't sound like a good solution to me.
Syntax
Datatype[] variable = new Datatype[] { value1,value2.... }
Datatype variable[] = new Datatype[] { value1,value2.... }
Example :
int [] points = new int[]{ 1,2,3,4 };
You could use code like this:
public double getRandomNumber(double minimum, double maximum) {
return minimum + randomizer.nextDouble() * (maximum - minimum);
}
A Bash function can't return a string directly like you want it to. You can do three things:
This is also true for some other shells.
Here's how to do each of those options:
lockdir="somedir"
testlock(){
retval=""
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
retval="true"
else
echo >&2 "cannot acquire lock, giving up on $lockdir"
retval="false"
fi
echo "$retval"
}
retval=$( testlock )
if [ "$retval" == "true" ]
then
echo "directory not created"
else
echo "directory already created"
fi
lockdir="somedir"
testlock(){
if mkdir "$lockdir"
then # Directory did not exist, but was created successfully
echo >&2 "successfully acquired lock: $lockdir"
retval=0
else
echo >&2 "cannot acquire lock, giving up on $lockdir"
retval=1
fi
return "$retval"
}
testlock
retval=$?
if [ "$retval" == 0 ]
then
echo "directory not created"
else
echo "directory already created"
fi
lockdir="somedir"
retval=-1
testlock(){
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
retval=0
else
echo >&2 "cannot acquire lock, giving up on $lockdir"
retval=1
fi
}
testlock
if [ "$retval" == 0 ]
then
echo "directory not created"
else
echo "directory already created"
fi
There is a new spec called the Native File System API that allows you to do this properly like this:
const result = await window.chooseFileSystemEntries({ type: "save-file" });
There is a demo here, but I believe it is using an origin trial so it may not work in your own website unless you sign up or enable a config flag, and it obviously only works in Chrome. If you're making an Electron app this might be an option though.
For 'out', the following seems to work for me.
public interface IService
{
void DoSomething(out string a);
}
[TestMethod]
public void Test()
{
var service = new Mock<IService>();
var expectedValue = "value";
service.Setup(s => s.DoSomething(out expectedValue));
string actualValue;
service.Object.DoSomething(out actualValue);
Assert.AreEqual(expectedValue, actualValue);
}
I'm guessing that Moq looks at the value of 'expectedValue' when you call Setup and remembers it.
For ref
, I'm looking for an answer also.
I found the following QuickStart guide useful: https://github.com/Moq/moq4/wiki/Quickstart
Check out the pack URI syntax. You want something like this:
<ResourceDictionary Source="pack://application:,,,/YourAssembly;component/Subfolder/YourResourceFile.xaml"/>
OK, let me put this bluntly: if you're putting user data, or anything derived from user data into a cookie for this purpose, you're doing something wrong.
There. I said it. Now we can move on to the actual answer.
What's wrong with hashing user data, you ask? Well, it comes down to exposure surface and security through obscurity.
Imagine for a second that you're an attacker. You see a cryptographic cookie set for the remember-me on your session. It's 32 characters wide. Gee. That may be an MD5...
Let's also imagine for a second that they know the algorithm that you used. For example:
md5(salt+username+ip+salt)
Now, all an attacker needs to do is brute force the "salt" (which isn't really a salt, but more on that later), and he can now generate all the fake tokens he wants with any username for his IP address! But brute-forcing a salt is hard, right? Absolutely. But modern day GPUs are exceedingly good at it. And unless you use sufficient randomness in it (make it large enough), it's going to fall quickly, and with it the keys to your castle.
In short, the only thing protecting you is the salt, which isn't really protecting you as much as you think.
But Wait!
All of that was predicated that the attacker knows the algorithm! If it's secret and confusing, then you're safe, right? WRONG. That line of thinking has a name: Security Through Obscurity, which should NEVER be relied upon.
The Better Way
The better way is to never let a user's information leave the server, except for the id.
When the user logs in, generate a large (128 to 256 bit) random token. Add that to a database table which maps the token to the userid, and then send it to the client in the cookie.
What if the attacker guesses the random token of another user?
Well, let's do some math here. We're generating a 128 bit random token. That means that there are:
possibilities = 2^128
possibilities = 3.4 * 10^38
Now, to show how absurdly large that number is, let's imagine every server on the internet (let's say 50,000,000 today) trying to brute-force that number at a rate of 1,000,000,000 per second each. In reality your servers would melt under such load, but let's play this out.
guesses_per_second = servers * guesses
guesses_per_second = 50,000,000 * 1,000,000,000
guesses_per_second = 50,000,000,000,000,000
So 50 quadrillion guesses per second. That's fast! Right?
time_to_guess = possibilities / guesses_per_second
time_to_guess = 3.4e38 / 50,000,000,000,000,000
time_to_guess = 6,800,000,000,000,000,000,000
So 6.8 sextillion seconds...
Let's try to bring that down to more friendly numbers.
215,626,585,489,599 years
Or even better:
47917 times the age of the universe
Yes, that's 47917 times the age of the universe...
Basically, it's not going to be cracked.
So to sum up:
The better approach that I recommend is to store the cookie with three parts.
function onLogin($user) {
$token = GenerateRandomToken(); // generate a token, should be 128 - 256 bit
storeTokenForUser($user, $token);
$cookie = $user . ':' . $token;
$mac = hash_hmac('sha256', $cookie, SECRET_KEY);
$cookie .= ':' . $mac;
setcookie('rememberme', $cookie);
}
Then, to validate:
function rememberMe() {
$cookie = isset($_COOKIE['rememberme']) ? $_COOKIE['rememberme'] : '';
if ($cookie) {
list ($user, $token, $mac) = explode(':', $cookie);
if (!hash_equals(hash_hmac('sha256', $user . ':' . $token, SECRET_KEY), $mac)) {
return false;
}
$usertoken = fetchTokenByUserName($user);
if (hash_equals($usertoken, $token)) {
logUserIn($user);
}
}
}
Note: Do not use the token or combination of user and token to lookup a record in your database. Always be sure to fetch a record based on the user and use a timing-safe comparison function to compare the fetched token afterwards. More about timing attacks.
Now, it's very important that the SECRET_KEY
be a cryptographic secret (generated by something like /dev/urandom
and/or derived from a high-entropy input). Also, GenerateRandomToken()
needs to be a strong random source (mt_rand()
is not nearly strong enough. Use a library, such as RandomLib or random_compat, or mcrypt_create_iv()
with DEV_URANDOM
)...
The hash_equals()
is to prevent timing attacks.
If you use a PHP version below PHP 5.6 the function hash_equals()
is not supported. In this case you can replace hash_equals()
with the timingSafeCompare function:
/**
* A timing safe equals comparison
*
* To prevent leaking length information, it is important
* that user input is always used as the second parameter.
*
* @param string $safe The internal (safe) value to be checked
* @param string $user The user submitted (unsafe) value
*
* @return boolean True if the two strings are identical.
*/
function timingSafeCompare($safe, $user) {
if (function_exists('hash_equals')) {
return hash_equals($safe, $user); // PHP 5.6
}
// Prevent issues if string length is 0
$safe .= chr(0);
$user .= chr(0);
// mbstring.func_overload can make strlen() return invalid numbers
// when operating on raw binary strings; force an 8bit charset here:
if (function_exists('mb_strlen')) {
$safeLen = mb_strlen($safe, '8bit');
$userLen = mb_strlen($user, '8bit');
} else {
$safeLen = strlen($safe);
$userLen = strlen($user);
}
// Set the result to the difference between the lengths
$result = $safeLen - $userLen;
// Note that we ALWAYS iterate over the user-supplied length
// This is to prevent leaking length information
for ($i = 0; $i < $userLen; $i++) {
// Using % here is a trick to prevent notices
// It's safe, since if the lengths are different
// $result is already non-0
$result |= (ord($safe[$i % $safeLen]) ^ ord($user[$i]));
}
// They are only identical strings if $result is exactly 0...
return $result === 0;
}
Would suggest using the following snippet. Works fine even with huge tables (otherwise you'd open dump in editor and strip unneeded stuff, right? ;)
mysqldump --no-create-info --skip-triggers --extended-insert --lock-tables --quick DB TABLE > dump.sql
At least mysql 5.x required, but who runs old stuff nowadays.. :)
The percentage %
sign followed by two hexadecimal numbers (UTF-8 character representation) typically denotes a string which has been encoded to be part of a URI. This ensures that characters that would otherwise have special meaning don't interfere. In your case %20
is immediately recognisable as a whitespace character - while not really having any meaning in a URI it is encoded in order to avoid breaking the string into multiple "parts".
Don't get me wrong, regex is the bomb! However any web technology worth caring about will already have tools available in it's library to handle standards like this for you. Why re-invent the wheel...?
var str = 'xPasswords%20do%20not%20match';
console.log( decodeURI(str) ); // "xPasswords do not match"
Javascript has both decodeURI
and decodeURIComponent
which differ slightly in respect to their encodeURI
and encodeURIComponent
counterparts - you should familiarise yourself with the documentation.
Here is an example using lodash
4.x:
const data = {_x000D_
aaa: 111,_x000D_
abb: 222,_x000D_
bbb: 333_x000D_
};_x000D_
_x000D_
const result = _.pickBy(data, (value, key) => key.startsWith("a"));_x000D_
_x000D_
console.log(result);_x000D_
// Object { aaa: 111, abb: 222 }
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>_x000D_
<strong>Open your javascript console to see the output.</strong>
_x000D_
I may be wrong, but I believe I've seen a list of previous SQL queries in the session file for phpmyadmin sessions
Hit enter as there is no password. Enter the following commands:
mysql> SET PASSWORD for 'root'@'localhost' = password('enteryourpassword');
mysql> SET PASSWORD for 'root'@'127.0.0.1' = password('enteryourpassword');
mysql> SET PASSWORD for 'root'@'::1' = password('enteryourpassword');
That’s it, I keep the passwords the same to keep things simple. If you want to check the user’s table to see that the info has been updated just enter the additional commands as shown below. This is a good option to check that you have indeed entered the same password for all hosts.
.NET XSLT implementation allows to write custom managed functions in the stylesheet. For lower-case() it can be:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:utils="urn:myExtension" exclude-result-prefixes="msxsl">
<xsl:output method="xml" indent="yes"/>
<msxsl:script implements-prefix="utils" language="C#">
<![CDATA[
public string ToLower(string stringValue)
{
string result = String.Empty;
if(!String.IsNullOrEmpty(stringValue))
{
result = stringValue.ToLower();
}
return result;
}
]]>
</msxsl:script>
<!-- using of our custom function -->
<lowercaseValue>
<xsl:value-of select="utils:ToLower($myParam)"/>
</lowercaseValue>
Assume, that can be slow, but still acceptable.
Do not forget to enable embedded scripts support for transform:
// Create the XsltSettings object with script enabled.
XsltSettings xsltSettings = new XsltSettings(false, true);
XslCompiledTransform xslt = new XslCompiledTransform();
// Load stylesheet
xslt.Load(xsltPath, xsltSettings, new XmlUrlResolver());
Maybe I am missing something here, but did you allocate any memory for that PString before you accessed it?
PString * initializeString() {
PString *str;
str = (PString *) malloc(sizeof(PString));
str->length = &length;
return str;
}
If you assume what you are sorting are just numbers and only their values identify/distinguish them (e.g. elements with same value are identicle), then the stability-issue of sorting is meaningless.
However, objects with same priority in sorting may be distinct, and sometime their relative order is meaningful information. In this case, unstable sort generates problems.
For example, you have a list of data which contains the time cost [T] of all players to clean a maze with Level [L] in a game. Suppose we need to rank the players by how fast they clean the maze. However, an additional rule applies: players who clean the maze with higher-level always have a higher rank, no matter how long the time cost is.
Of course you might try to map the paired value [T,L] to a real number [R] with some algorithm which follows the rules and then rank all players with [R] value.
However, if stable sorting is feasible, then you may simply sort the entire list by [T] (Faster players first) and then by [L]. In this case, the relative order of players (by time cost) will not be changed after you grouped them by level of maze they cleaned.
PS: of course the approach to sort twice is not the best solution to the particular problem but to explain the question of poster it should be enough.
You can use the TelephonyManager to do this:
TelephonyManager t = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
String number = t.getLine1Number();
Have you used
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
CORS headers should be sent from the server. If you use PHP it will be like this:
header('Access-Control-Allow-Origin: your-host');
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Allow-Methods: your-methods like POST,GET');
header('Access-Control-Allow-Headers: content-type or other');
header('Content-Type: application/json');
You can use new C# 6.0 Language Features:
(s) => { return Convert.ToInt32(s); }
with
corresponding method group Convert.ToInt32
new Converter<string, int>(Convert.ToInt32)
with: Convert.ToInt32
The result will be:
var intList = new List<int>(Array.ConvertAll(sNumbers.Split(','), Convert.ToInt32));
You can use index arrays, simply pass your ind_pos
as an index argument as below:
a = np.array([0,88,26,3,48,85,65,16,97,83,91])
ind_pos = np.array([1,5,7])
print(a[ind_pos])
# [88,85,16]
Index arrays do not necessarily have to be numpy arrays, they can be also be lists or any sequence-like object (though not tuples).
This happens to me when I do not clean solution before build new .edmx designer. So just don’t forget to clean solution before you build new .edmx designer. This helps me to skip lot more issues with this one. Bellow the navigation details provided incase you are new in visual studio.
Click->Build->Clean Solution
Then Click->Build->Rebuild Solution
Hope this helps. Thanks everyone
The embedded code of youtube has autoplay off by default. Simply add autoplay=1
at the end of "src" attribute. For example:
<iframe src="http://www.youtube.com/embed/xzvScRnF6MU?autoplay=1" width="960" height="447" frameborder="0" allowfullscreen></iframe>
Following up on Mat's answer (use Cygwin), here are some detailed instructions for : installing gcc on Windows The packages you want are gcc, gdb and make. Cygwin installer lets you install additional packages if you need them.
you need to write this structure on your bean configuration (this is your datasource):
<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
<property name="poolName" value="springHikariCP" />
<property name="connectionTestQuery" value="SELECT 1" />
<property name="dataSourceClassName" value="${hibernate.dataSourceClassName}" />
<property name="maximumPoolSize" value="${hibernate.hikari.maximumPoolSize}" />
<property name="idleTimeout" value="${hibernate.hikari.idleTimeout}" />
<property name="dataSourceProperties">
<props>
<prop key="url">${dataSource.url}</prop>
<prop key="user">${dataSource.username}</prop>
<prop key="password">${dataSource.password}</prop>
</props>
</property>
</bean>
<!-- HikariCP configuration -->
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
<constructor-arg ref="hikariConfig" />
</bean>
This is my example and it is working. You just need to put your properties on hibernate.properties and set it before:
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:hibernate.properties</value>
</list>
</property>
</bean>
Obs.: the versions are
log4j: 1.2.16
springframework: 3.1.4.RELEASE
HikariCP: 1.4.0
Properties file (hibernate.properties):
hibernate.dataSourceClassName=oracle.jdbc.pool.OracleDataSource
hibernate.hikari.maximumPoolSize=10
hibernate.hikari.idleTimeout=30000
dataSource.url=jdbc:oracle:thin:@localhost:1521:xe
dataSource.username=admin
dataSource.password=
For Swift 3 & Swift 4 :
Since UIAlertView is deprecated, there is the good way for display Alert on Swift 3
let alertController = UIAlertController(title: NSLocalizedString("No network connection",comment:""), message: NSLocalizedString("connected to the internet to use this app.",comment:""), preferredStyle: .alert)
let defaultAction = UIAlertAction(title: NSLocalizedString("Ok", comment: ""), style: .default, handler: { (pAlert) in
//Do whatever you want here
})
alertController.addAction(defaultAction)
self.present(alertController, animated: true, completion: nil)
Deprecated :
This is the swift version inspired by the checked response :
Display AlertView :
let alert = UIAlertView(title: "No network connection",
message: "You must be connected to the internet to use this app.", delegate: nil, cancelButtonTitle: "Ok")
alert.delegate = self
alert.show()
Add the delegate to your view controller :
class AgendaViewController: UIViewController, UIAlertViewDelegate
When user click on button, this code will be executed :
func alertView(alertView: UIAlertView, clickedButtonAtIndex buttonIndex: Int) {
}
Instead of this goto mess, try using the ampersand & or double ampersand && (conditional to errorlevel 0) as command separators.
I fixed a script snippet with this trick, to summarize, I have three batch files, one which calls the other two after having found which letters the external backup drives have been assigned. I leave the first file on the primary external drive so the calls to its backup routine worked fine, but the calls to the second one required an active drive change. The code below shows how I fixed it:
for %%b in (d e f g h i j k l m n o p q r s t u v w x y z) DO (
if exist "%%b:\Backup.cmd" %%b: & CALL "%%b:\Backup.cmd"
)
For the datatype Double
to int
, you can use the following:
Double double = 5.00;
int integer = double.intValue();
I would suggest the following simple approach for conversion:
from datetime import datetime, timedelta
s = "20120213"
# you could also import date instead of datetime and use that.
date = datetime(year=int(s[0:4]), month=int(s[4:6]), day=int(s[6:8]))
For adding/subtracting an arbitary amount of days (seconds work too btw.), you could do the following:
date += timedelta(days=10)
date -= timedelta(days=5)
And convert back using:
s = date.strftime("%Y%m%d")
To convert the integer to a string safely, use:
s = "{0:-08d}".format(i)
This ensures that your string is eight charecters long and left-padded with zeroes, even if the year is smaller than 1000 (negative years could become funny though).
Further reference: datetime objects, timedelta objects
=COUNTIFS(H5:H21000,">=100", H5:H21000,"<999")
You could try using Python's variable arguments feature:
def myfunction(*args):
for x in args:
# Do stuff with specific argument here
With jQuery :
jQuery("#btn").on("click",function(event){
event.preventDefault();
pay();
cls();
});
To comment block with nested comments: substitute inner (block) comments from "--" to "++"
<!-- *********************************************************************
* IMPORTANT: To uncomment section
* sub inner comments "++" -> "--" & remove this comment
*********************************************************************
<head>
<title>My document's title</title> <++! My document's title ++>
<link rel=stylesheet href="mydoc.css" type="text/css">
</head>
<body>
<++! My document's important HTML stuff ++>
...
...
...
</body>
*********************************************************************
* IMPORTANT: To uncomment section
* sub inner comments "++" -> "--" & remove this comment
*********************************************************************
-->
Thus, the outer most comment ignores all "invalid" inner (block) comments.
Solution native Javascript :
document.getElementById("theSelectId").insertBefore(new Option('', ''), document.getElementById("theSelectId").firstChild);
example : http://codepen.io/anon/pen/GprybL
I am sharing a fragment shader example, how i actually debug.
#version 410 core
uniform sampler2D samp;
in VS_OUT
{
vec4 color;
vec2 texcoord;
} fs_in;
out vec4 color;
void main(void)
{
vec4 sampColor;
if( texture2D(samp, fs_in.texcoord).x > 0.8f) //Check if Color contains red
sampColor = vec4(1.0f, 1.0f, 1.0f, 1.0f); //If yes, set it to white
else
sampColor = texture2D(samp, fs_in.texcoord); //else sample from original
color = sampColor;
}
Almost like cheating, I just went into an image editor and resized the image by half. Works like a charm for me.
Why don't you go for awk:
awk '/Start pattern/,/End pattern/' filename
Depending on the AWK
implementation are you using ==
is ok or not.
Have you tried ~
?. For example, if you want $1 to be "hello":
awk '$1 ~ /^hello$/{ print $3; }' <infile>
^
means $1 start, and $
is $1 end.
If you're trying to read XML generated from a URL without file_get_contents()
then you'll probably want to have a look at cURL
As far as I can tell, .NET does support persisting settings using the built-in application settings facility:
The Application Settings feature of Windows Forms makes it easy to create, store, and maintain custom application and user preferences on the client computer. With Windows Forms application settings, you can store not only application data such as database connection strings, but also user-specific data, such as user application preferences. Using Visual Studio or custom managed code, you can create new settings, read them from and write them to disk, bind them to properties on your forms, and validate settings data prior to loading and saving. - http://msdn.microsoft.com/en-us/library/k4s6c3a0.aspx
Try this org.codehaus.jettison.json.JSONObject.quote("your string")
.
Download it here: http://mvnrepository.com/artifact/org.codehaus.jettison/jettison
Just in case you would also like check if a string (or a set of strings) contain(s) multiple sub-strings, you can also use the '|' between two substrings.
>substring="as|at"
>string_vector=c("ass","ear","eye","heat")
>grepl(substring,string_vector)
You will get
[1] TRUE FALSE FALSE TRUE
since the 1st word has substring "as", and the last word contains substring "at"
According to the HTML 5 specification, 5.9.8 Navigating to a fragment identifier:
For HTML documents (and the text/html MIME type), the following processing model must be followed to determine what the indicated part of the document is.
- Parse the URL, and let fragid be the <fragment> component of the URL.
- If fragid is the empty string, then the indicated part of the document is the top of the document.
- If there is an element in the DOM that has an ID exactly equal to fragid, then the first such element in tree order is the indicated part of the document; stop the algorithm here.
- If there is an a element in the DOM that has a name attribute whose value is exactly equal to fragid, then the first such element in tree order is the indicated part of the document; stop the algorithm here.
- Otherwise, there is no indicated part of the document.
So, it will look for id="foo"
, and then will follow to name="foo"
Edit: As pointed out by @hsivonen, in HTML5 the a
element has no name attribute. However, the above rules still apply to other named elements.
The Java RoboVM equivalent:
public void dial(String number)
{
NSURL url = new NSURL("tel://" + number);
UIApplication.getSharedApplication().openURL(url);
}
You can use the ant-contrib task "for" to iterate on the list of files separate by any delimeter, default delimeter is ",".
Following is the sample file which shows this:
<project name="modify-files" default="main" basedir=".">
<taskdef resource="net/sf/antcontrib/antlib.xml"/>
<target name="main">
<for list="FileA,FileB,FileC,FileD,FileE" param="file">
<sequential>
<echo>Updating file: @{file}</echo>
<!-- Do something with file here -->
</sequential>
</for>
</target>
</project>
To install 32-bit Java on Windows 7 (64-bit OS + Machine). You can do:
1) Download JDK: http://javadl.sun.com/webapps/download/AutoDL?BundleId=58124
2) Download JRE: http://www.java.com/en/download/installed.jsp?jre_version=1.6.0_22&vendor=Sun+Microsystems+Inc.&os=Linux&os_version=2.6.41.4-1.fc15.i686
3) System variable create: C:\program files (x86)\java\jre6\bin\
4) Anywhere you type java -version
it use 32-bit on (64-bit). I have to use this because lots of third party libraries do not work with 64-bit. Java wake up from the hell, give us peach :P. Go-language is killer.
The existence of that piece of metadata is entirely dependent on the application that wrote the file. It's very common to load up JPG files with metadata (EXIF tags) about the file, such as a timestamp or camera information or geolocation. ID3 tags in MP3 files are also very common. But it's a lot less common to see this kind of metadata in video files.
If you just need a tool to read this data from files manually, GSpot might do the trick: http://www.videohelp.com/tools/Gspot
If you want to read this in code then I imagine each container format is going to have its own standards and each one will take a bit of research and implementation to support.
Add the offset of the event to the parent element offset to get the absolute offset position of the event.
An example :
HTMLElement.addEventListener('mousedown',function(e){
var offsetX = e.offsetX;
var offsetY = e.offsetY;
if( e.target != this ){ // 'this' is our HTMLElement
offsetX = e.target.offsetLeft + e.offsetX;
offsetY = e.target.offsetTop + e.offsetY;
}
}
When the event target is not the element which the event was registered to, it adds the offset of the parent to the current event offset in order to calculate the "Absolute" offset value.
According to Mozilla Web API: "The HTMLElement.offsetLeft read-only property returns the number of pixels that the upper left corner of the current element is offset to the left within the HTMLElement.offsetParent node."
This mostly happens when you registered an event on a parent which is containing several more children, for example: a button with an inner icon or text span, an li
element with inner spans. etc...
Use scikit-learn:
from sklearn.preprocessing import MinMaxScaler
data = np.array([1,2,3]).reshape(-1, 1)
scaler = MinMaxScaler()
scaler.fit(data)
print(scaler.transform(data))
Hi the problem is in FileDownloader class
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
You need to remove the above two lines and everything will work fine. Please mark the question as answered if it is working as expected.
Latest solution for the same problem is updated Android PDF Write / Read using Android 9 (API level 28)
Attaching the working code with screenshots.
MainActivity.java
package com.example.downloadread;
import java.io.File;
import java.io.IOException;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void download(View v)
{
new DownloadFile().execute("http://maven.apache.org/maven-1.x/maven.pdf", "maven.pdf");
}
public void view(View v)
{
File pdfFile = new File(Environment.getExternalStorageDirectory() + "/testthreepdf/" + "maven.pdf"); // -> filename = maven.pdf
Uri path = Uri.fromFile(pdfFile);
Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(path, "application/pdf");
pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
try{
startActivity(pdfIntent);
}catch(ActivityNotFoundException e){
Toast.makeText(MainActivity.this, "No Application available to view PDF", Toast.LENGTH_SHORT).show();
}
}
private class DownloadFile extends AsyncTask<String, Void, Void>{
@Override
protected Void doInBackground(String... strings) {
String fileUrl = strings[0]; // -> http://maven.apache.org/maven-1.x/maven.pdf
String fileName = strings[1]; // -> maven.pdf
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
File folder = new File(extStorageDirectory, "testthreepdf");
folder.mkdir();
File pdfFile = new File(folder, fileName);
try{
pdfFile.createNewFile();
}catch (IOException e){
e.printStackTrace();
}
FileDownloader.downloadFile(fileUrl, pdfFile);
return null;
}
}
}
FileDownloader.java
package com.example.downloadread;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class FileDownloader {
private static final int MEGABYTE = 1024 * 1024;
public static void downloadFile(String fileUrl, File directory){
try {
URL url = new URL(fileUrl);
HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection();
//urlConnection.setRequestMethod("GET");
//urlConnection.setDoOutput(true);
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
FileOutputStream fileOutputStream = new FileOutputStream(directory);
int totalSize = urlConnection.getContentLength();
byte[] buffer = new byte[MEGABYTE];
int bufferLength = 0;
while((bufferLength = inputStream.read(buffer))>0 ){
fileOutputStream.write(buffer, 0, bufferLength);
}
fileOutputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.downloadread"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.downloadread.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="15dp"
android:text="download"
android:onClick="download" />
<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/button1"
android:layout_marginTop="38dp"
android:text="view"
android:onClick="view" />
</RelativeLayout>
I had this problem occurring suddenly in Dell Ubuntu linux machine with Android Developer Studio. I did the following steps
1. I opened "System Settings"
2. Select the listed item "Software and Updates"
3. Click on the tab "Additional Drivers"
4. There was a mention about "Dell Inc: Unknown" and the option "Do not use use the device" selected. I selected the alternate driver mentioned and did an "Apply the Changes".
It started working.
Try replaceAll()
method of the String
class.
BTW here is the method, return type and parameters.
public String replaceAll(String regex,
String replacement)
Example:
String str = "Hello +-^ my + - friends ^ ^^-- ^^^ +!";
str = str.replaceAll("[-+^]*", "");
It should remove all the {'^', '+', '-'} chars that you wanted to remove!
You are using a relative path, which means that the program looks for the file in the working directory. The error is telling you that there is no file of that name in the working directory.
Try using the exact, or absolute, path.
You can try "javascript-compiler-deva" from npm library by running "npm install javascript-compiler-deva" command and then running the compiler.is using "node compiler.js".
It creates a server at port 8888. You can then hit "http://localhost:8888" and enter your JavaScript code and can see the result of any JavaScript code including "console.log" in phone browser itself.
It is also hosted in "https://javascript-compiler-deva.herokuapp.com/"
I would use cron to run a script every minute, and make that script run your script four times with a 15-second sleep between runs.
(That assumes your script is quick to run - you could adjust the sleep times if not.)
That way, you get all the benefits of cron
as well as your 15 second run period.
Edit: See also @bmb's comment below.
I suggest removing the below code from getMails
.catch(error => { throw error})
In your main function you should put await and related code in Try block and also add one catch block where you failure code.
you function gmaiLHelper.getEmails should return a promise which has reject and resolve in it.
Now while calling and using await put that in try catch block(remove the .catch) as below.
router.get("/emailfetch", authCheck, async (req, res) => {
//listing messages in users mailbox
try{
let emailFetch = await gmaiLHelper.getEmails(req.user._doc.profile_id , '/messages', req.user.accessToken)
}
catch (error) {
// your catch block code goes here
})
Assuming that your original dataset is similar to the one you created (i.e. with NA
as character
. You could specify na.strings
while reading the data using read.table
. But, I guess NAs would be detected automatically.
The price
column is factor
which needs to be converted to numeric
class. When you use as.numeric
, all the non-numeric elements (i.e. "NA"
, FALSE) gets coerced to NA
) with a warning.
library(dplyr)
df %>%
mutate(price=as.numeric(as.character(price))) %>%
group_by(company, year, product) %>%
summarise(total.count=n(),
count=sum(is.na(price)),
avg.price=mean(price,na.rm=TRUE),
max.price=max(price, na.rm=TRUE))
I am using the same dataset
(except the ...
row) that was showed.
df = tbl_df(data.frame(company=c("Acme", "Meca", "Emca", "Acme", "Meca","Emca"),
year=c("2011", "2010", "2009", "2011", "2010", "2013"), product=c("Wrench", "Hammer",
"Sonic Screwdriver", "Fairy Dust", "Kindness", "Helping Hand"), price=c("5.67",
"7.12", "12.99", "10.99", "NA",FALSE)))
You could use the Date.getDay()
method, which returns 0 for sunday, up to 6 for saturday. So, you could simply create an array with the name for the day names:
var days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
var d = new Date(dateString);
var dayName = days[d.getDay()];
Here dateString
is the string you received from the third party API.
Alternatively, if you want the first 3 letters of the day name, you could use the Date
object's built-in toString
method:
var d = new Date(dateString);
var dayName = d.toString().split(' ')[0];
That will take the first word in the d.toString()
output, which will be the 3-letter day name.
A simpler option: just uncomment the following part of the configuration (which is originally commented out) in the /etc/vim/vimrc file:
if has("autocmd")
filetype plugin indent on
endif
For scala
import org.apache.spark.sql.functions.regexp_replace
import org.apache.spark.sql.functions.col
data.withColumn("addr_new", regexp_replace(col("addr_line"), "\\*", ""))
I found possible answer. You have core-js version 3.0, and this version doesn't have separate folders for ES6 and ES7; that's why the application cannot find correct paths.
To resolve this error, you can downgrade the core-js version to 2.5.7. This version produces correct catalogs structure, with separate ES6 and ES7 folders.
To downgrade the version, simply run:
npm i -S [email protected]
In my case, with Angular, this works ok.
If you want to to know how to return a value from stored procedure to Visual Basic.NET. Please read this tutorial: How to return a value from stored procedure
I used the following stored procedure to return the value.
CREATE PROCEDURE usp_get_count
AS
BEGIN
DECLARE @VALUE int;
SET @VALUE=(SELECT COUNT(*) FROM tblCar);
RETURN @VALUE;
END
GO
I'll post this comment as answer, as I'm confident enough that what I asked is not possible.
I) Couple of similar questions trying to do the same, without success:
II) This article: Excel Pivot Table Calculated Field for example lists many restrictions of Calculated Field:
III) There is tiny limited possibility to use AVERAGE()
and similar function for a range of cells, but that applies only if Pivot table doesn't have grouped cells, which allows listing the cells as items in new group (right to "Fileds" listbox in above screenshot) and then user can calculate AVERAGE()
, referencing explicitly every item (cell), from Items listbox, as argument. Maybe it's better explained here: Calculate values in a PivotTable report
For my Pivot table it wasn't applicable because my range wasn't small enough, this option to be sane choice.
None of these answers properly handle tabs, newlines, carriage returns, and some don't handle extended ASCII and unicode.
This will KEEP tabs & newlines, but remove control characters and anything out of the ASCII set. Click "Run this code snippet" button to test. There is some new javascript coming down the pipe so in the future (2020+?) you may have to do \u{FFFFF}
but not yet
console.log("line 1\nline2 \n\ttabbed\nF??^?¯?^??????????????l????~¨??????_??????a?????"????????????v?¯?????i????o?????????????????????".replace(/[\x00-\x08\x0E-\x1F\x7F-\uFFFF]/g, ''))
_x000D_
Why to annoy the user with three different Dialog Boxes to enter things, why not do all this in one go in a single Dialog and save time, instead of testing the patience of the USER ?
You can add everything in a single Dialog, by putting all the fields on your JPanel
and then adding this JPanel
to your JOptionPane
. Below code can clarify a bit more :
import java.awt.*;
import java.util.*;
import javax.swing.*;
public class AverageExample
{
private double[] marks;
private JTextField[] marksField;
private JLabel resultLabel;
public AverageExample()
{
marks = new double[3];
marksField = new JTextField[3];
marksField[0] = new JTextField(10);
marksField[1] = new JTextField(10);
marksField[2] = new JTextField(10);
}
private void displayGUI()
{
int selection = JOptionPane.showConfirmDialog(
null, getPanel(), "Input Form : "
, JOptionPane.OK_CANCEL_OPTION
, JOptionPane.PLAIN_MESSAGE);
if (selection == JOptionPane.OK_OPTION)
{
for ( int i = 0; i < 3; i++)
{
marks[i] = Double.valueOf(marksField[i].getText());
}
Arrays.sort(marks);
double average = (marks[1] + marks[2]) / 2.0;
JOptionPane.showMessageDialog(null
, "Average is : " + Double.toString(average)
, "Average : "
, JOptionPane.PLAIN_MESSAGE);
}
else if (selection == JOptionPane.CANCEL_OPTION)
{
// Do something here.
}
}
private JPanel getPanel()
{
JPanel basePanel = new JPanel();
//basePanel.setLayout(new BorderLayout(5, 5));
basePanel.setOpaque(true);
basePanel.setBackground(Color.BLUE.darker());
JPanel centerPanel = new JPanel();
centerPanel.setLayout(new GridLayout(3, 2, 5, 5));
centerPanel.setBorder(
BorderFactory.createEmptyBorder(5, 5, 5, 5));
centerPanel.setOpaque(true);
centerPanel.setBackground(Color.WHITE);
JLabel mLabel1 = new JLabel("Enter Marks 1 : ");
JLabel mLabel2 = new JLabel("Enter Marks 2 : ");
JLabel mLabel3 = new JLabel("Enter Marks 3 : ");
centerPanel.add(mLabel1);
centerPanel.add(marksField[0]);
centerPanel.add(mLabel2);
centerPanel.add(marksField[1]);
centerPanel.add(mLabel3);
centerPanel.add(marksField[2]);
basePanel.add(centerPanel);
return basePanel;
}
public static void main(String... args)
{
SwingUtilities.invokeLater(new Runnable()
{
@Override
public void run()
{
new AverageExample().displayGUI();
}
});
}
}
Set positioning to absolute. That will solve the problem immediately, but might cause some problems in layout later. You can always figure out a way around them ;)
Example:
position:absolute;
The reference documentation for the UPDATE statement on DB2 LUW 9.7 gives the following example:
UPDATE (SELECT EMPNO, SALARY, COMM,
AVG(SALARY) OVER (PARTITION BY WORKDEPT),
AVG(COMM) OVER (PARTITION BY WORKDEPT)
FROM EMPLOYEE E) AS E(EMPNO, SALARY, COMM, AVGSAL, AVGCOMM)
SET (SALARY, COMM) = (AVGSAL, AVGCOMM)
WHERE EMPNO = '000120'
The parentheses after UPDATE can contain a full-select, meaning any valid SELECT statement can go there.
Based on that, I would suggest the following:
UPDATE (
SELECT
f1.firstfield,
f2.anotherfield,
f2.something
FROM file1 f1
WHERE f1.firstfield like 'BLAH%'
INNER JOIN file2 f2
ON substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
)
AS my_files(firstfield, anotherfield, something)
SET
firstfield = ( 'BIT OF TEXT' || something )
Edit: Ian is right. My first instinct was to try subselects instead:
UPDATE file1 f1
SET f1.firstfield = ( 'BIT OF TEXT' || (
SELECT f2.something
FROM file2 f2
WHERE substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
))
WHERE f1.firstfield LIKE 'BLAH%'
AND substr(f1.firstfield,10,20) IN (
SELECT substr(f2.anotherfield,1,10)
FROM file2 f2
)
But I'm not sure if the concatenation would work. It also assumes that there's a 1:1 mapping between the substrings. If there are multiple rows that match, it wouldn't work.
sed -i '/^$/d' foo
This tells sed
to delete every line matching the regex ^$
i.e. every empty line. The -i
flag edits the file in-place, if your sed
doesn't support that you can write the output to a temporary file and replace the original:
sed '/^$/d' foo > foo.tmp
mv foo.tmp foo
If you also want to remove lines consisting only of whitespace (not just empty lines) then use:
sed -i '/^[[:space:]]*$/d' foo
Edit: also remove whitespace at the end of lines, because apparently you've decided you need that too:
sed -i '/^[[:space:]]*$/d;s/[[:space:]]*$//' foo
I suggest you to use 2 queries:
db.collection.count()
will return total number of items. This value is stored somewhere in Mongo and it is not calculated.
db.collection.find().skip(20).limit(10)
here I assume you could use a sort by some field, so do not forget to add an index on this field. This query will be fast too.
I think that you shouldn't query all items and than perform skip and take, cause later when you have big data you will have problems with data transferring and processing.
You'll want to use limits.h
which provides the following constants (as per the linked reference):
SCHAR_MIN : minimum value for a signed char
SCHAR_MAX : maximum value for a signed char
UCHAR_MAX : maximum value for an unsigned char
CHAR_MIN : minimum value for a char
CHAR_MAX : maximum value for a char
SHRT_MIN : minimum value for a short
SHRT_MAX : maximum value for a short
USHRT_MAX : maximum value for an unsigned short
INT_MIN : minimum value for an int
INT_MAX : maximum value for an int
UINT_MAX : maximum value for an unsigned int
LONG_MIN : minimum value for a long
LONG_MAX : maximum value for a long
ULONG_MAX : maximum value for an unsigned long
LLONG_MIN : minimum value for a long long
LLONG_MAX : maximum value for a long long
ULLONG_MAX : maximum value for an unsigned long long
PTRDIFF_MIN : minimum value of ptrdiff_t
PTRDIFF_MAX : maximum value of ptrdiff_t
SIZE_MAX : maximum value of size_t
SIG_ATOMIC_MIN : minimum value of sig_atomic_t
SIG_ATOMIC_MAX : maximum value of sig_atomic_t
WINT_MIN : minimum value of wint_t
WINT_MAX : maximum value of wint_t
WCHAR_MIN : minimum value of wchar_t
WCHAR_MAX : maximum value of wchar_t
CHAR_BIT : number of bits in a char
MB_LEN_MAX : maximum length of a multibyte character in bytes
Where U*_MIN
is omitted for obvious reasons (any unsigned type has a minimum value of 0).
Similarly float.h
provides limits for float
and double
types:
FLT_MIN : smallest normalised positive value of a float
FLT_MAX : largest positive finite value of a float
DBL_MIN : smallest normalised positive value of a double
DBL_MAX : largest positive finite value of a double
LDBL_MIN : smallest normalised positive value of a long double
LDBL_MAX : largest positive finite value of a long double
FLT_DIG : the number of decimal digits guaranteed to be preserved converting from text to float and back to text
DBL_DIG : the number of decimal digits guaranteed to be preserved converting from text to double and back to text
LDBL_DIG : the number of decimal digits guaranteed to be preserved converting from text to long double and back to text
Floating point types are symmetrical around zero, so the most negative finite number is the negation of the most positive finite number - eg float
ranges from -FLT_MAX
to FLT_MAX
.
Do note that floating point types can only exactly represent a small, finite number of values within their range. As the absolute values stored get larger, the spacing between adjacent numbers that can be exactly represented also gets larger.
You can only use aggregates for comparison in the HAVING clause:
GROUP BY ...
HAVING SUM(cash) > 500
The HAVING
clause requires you to define a GROUP BY clause.
To get the first row where the sum of all the previous cash is greater than a certain value, use:
SELECT y.id, y.cash
FROM (SELECT t.id,
t.cash,
(SELECT SUM(x.cash)
FROM TABLE x
WHERE x.id <= t.id) AS running_total
FROM TABLE t
ORDER BY t.id) y
WHERE y.running_total > 500
ORDER BY y.id
LIMIT 1
Because the aggregate function occurs in a subquery, the column alias for it can be referenced in the WHERE clause.
Just to add some info to the other answers - using &
is a good way if you need an isolated scope.
The main downside of marko's solution is that it forces you to create an isolated scope on an element, but you can only have one of those on an element (otherwise you'll run into an angular error: Multiple directives [directive1, directive2] asking for isolated scope)
This means you :
Since the original question uses a directive with restrict:'A'
both situations might arise quite often in bigger applications, and using an isolated scope here is not a good practice and also unnecessary. In fact rekna had a good intuition in this case, and almost had it working, the only thing he was doing wrong was calling the $parsed function wrong (see what it returns here: https://docs.angularjs.org/api/ng/service/$parse ).
<div my-method='theMethodToBeCalled(id)'></div>
and the code
app.directive("myMethod",function($parse) {
restrict:'A',
link:function(scope,element,attrs) {
// here you can parse any attribute (so this could as well be,
// myDirectiveCallback or multiple ones if you need them )
var expressionHandler = $parse(attrs.myMethod);
$(element).on('theEvent',function( e, rowid ) {
calculatedId = // some function called to determine id based on rowid
// HERE: call the parsed function correctly (with scope AND params object)
expressionHandler(scope, {id:calculatedId});
}
}
}
app.controller("myController",function($scope) {
$scope.theMethodToBeCalled = function(id) { alert(id); };
}
You should use 'zip' function. Here is an example how your own zip function can look like
def custom_zip(seq1, seq2):
it1 = iter(seq1)
it2 = iter(seq2)
while True:
yield next(it1), next(it2)
Wrong. That doesn't work for me.
For me this one works:
curl
-H 'SOAPACTION: "urn:samsung.com:service:MainTVAgent2:1#CheckPIN"'
-X POST
-H 'Content-type: text/xml'
-d @/tmp/pinrequest.xml
192.168.1.5:52235/MainTVServer2/control/MainTVAgent2
You have to change the file from .html to .php.
and add this following line
header('Content-Type: text/html; charset=utf-8');
Before being able to do a multitable insert in Oracle, you could use a trick involving an insert into a view that had an INSTEAD OF trigger defined on it to perform the inserts. Can this be done in SQL Server?
Using furl and regex (python 3)
>>> import re
>>> import furl
>>> p = re.compile(r'(\/)+')
>>> url = furl.furl('/media/path').add(path='/js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media/path').add(path='js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media/path/').add(path='js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media///path///').add(path='//js///foo.js').url
>>> url
'/media///path/////js///foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
Define "doesn't work".
const date = moment("2015-07-02"); // Thursday Feb 2015_x000D_
const dow = date.day();_x000D_
console.log(dow);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
_x000D_
This prints "4", as expected.
Bash doesn't have multi-dimensional array. But you can simulate a somewhat similar effect with associative arrays. The following is an example of associative array pretending to be used as multi-dimensional array:
declare -A arr
arr[0,0]=0
arr[0,1]=1
arr[1,0]=2
arr[1,1]=3
echo "${arr[0,0]} ${arr[0,1]}" # will print 0 1
If you don't declare the array as associative (with -A
), the above won't work. For example, if you omit the declare -A arr
line, the echo
will print 2 3
instead of 0 1
, because 0,0
, 1,0
and such will be taken as arithmetic expression and evaluated to 0
(the value to the right of the comma operator).
please see below answer.
Custom_CameraActivity.java
public class Custom_CameraActivity extends Activity {
private Camera mCamera;
private CameraPreview mCameraPreview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mCamera = getCameraInstance();
mCameraPreview = new CameraPreview(this, mCamera);
FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview);
preview.addView(mCameraPreview);
Button captureButton = (Button) findViewById(R.id.button_capture);
captureButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mCamera.takePicture(null, null, mPicture);
}
});
}
/**
* Helper method to access the camera returns null if it cannot get the
* camera or does not exist
*
* @return
*/
private Camera getCameraInstance() {
Camera camera = null;
try {
camera = Camera.open();
} catch (Exception e) {
// cannot get camera or does not exist
}
return camera;
}
PictureCallback mPicture = new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
File pictureFile = getOutputMediaFile();
if (pictureFile == null) {
return;
}
try {
FileOutputStream fos = new FileOutputStream(pictureFile);
fos.write(data);
fos.close();
} catch (FileNotFoundException e) {
} catch (IOException e) {
}
}
};
private static File getOutputMediaFile() {
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
"MyCameraApp");
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d("MyCameraApp", "failed to create directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(new Date());
File mediaFile;
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
return mediaFile;
}
}
CameraPreview.java
public class CameraPreview extends SurfaceView implements
SurfaceHolder.Callback {
private SurfaceHolder mSurfaceHolder;
private Camera mCamera;
// Constructor that obtains context and camera
@SuppressWarnings("deprecation")
public CameraPreview(Context context, Camera camera) {
super(context);
this.mCamera = camera;
this.mSurfaceHolder = this.getHolder();
this.mSurfaceHolder.addCallback(this);
this.mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
@Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
try {
mCamera.setPreviewDisplay(surfaceHolder);
mCamera.startPreview();
} catch (IOException e) {
// left blank for now
}
}
@Override
public void surfaceDestroyed(SurfaceHolder surfaceHolder) {
mCamera.stopPreview();
mCamera.release();
}
@Override
public void surfaceChanged(SurfaceHolder surfaceHolder, int format,
int width, int height) {
// start preview with new settings
try {
mCamera.setPreviewDisplay(surfaceHolder);
mCamera.startPreview();
} catch (Exception e) {
// intentionally left blank for a test
}
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<FrameLayout
android:id="@+id/camera_preview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<Button
android:id="@+id/button_capture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Capture" />
</LinearLayout>
Add Below Lines to your androidmanifest.xml file
<uses-feature android:name="android.hardware.camera" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Share : Text
@IBAction func shareOnlyText(_ sender: UIButton) {
let text = "This is the text....."
let textShare = [ text ]
let activityViewController = UIActivityViewController(activityItems: textShare , applicationActivities: nil)
activityViewController.popoverPresentationController?.sourceView = self.view
self.present(activityViewController, animated: true, completion: nil)
}
}
Share : Image
@IBAction func shareOnlyImage(_ sender: UIButton) {
let image = UIImage(named: "Product")
let imageShare = [ image! ]
let activityViewController = UIActivityViewController(activityItems: imageShare , applicationActivities: nil)
activityViewController.popoverPresentationController?.sourceView = self.view
self.present(activityViewController, animated: true, completion: nil)
}
Share : Text - Image - URL
@IBAction func shareAll(_ sender: UIButton) {
let text = "This is the text...."
let image = UIImage(named: "Product")
let myWebsite = NSURL(string:"https://stackoverflow.com/users/4600136/mr-javed-multani?tab=profile")
let shareAll= [text , image! , myWebsite]
let activityViewController = UIActivityViewController(activityItems: shareAll, applicationActivities: nil)
activityViewController.popoverPresentationController?.sourceView = self.view
self.present(activityViewController, animated: true, completion: nil)
}
It just exits the method at that point. Once return
is executed, the rest of the code won't be executed.
eg.
public void test(int n) {
if (n == 1) {
return;
}
else if (n == 2) {
doStuff();
return;
}
doOtherStuff();
}
Note that the compiler is smart enough to tell you some code cannot be reached:
if (n == 3) {
return;
youWillGetAnError(); //compiler error here
}
You can also use nuget: https://www.nuget.org/packages/System.Management.Automation/ It is maybe a better option.
You can also try with this to run your application in visual studio code -:
ng serve --open --port 4201
you can give any port number.
Regarding the following solution:
grep -Fxq "$FILENAME" my_list.txt
In case you are wondering (as I did) what -Fxq
means in plain English:
F
: Affects how PATTERN is interpreted (fixed string instead of a regex)x
: Match whole lineq
: Shhhhh... minimal printingFrom the man file:
-F, --fixed-strings
Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched.
(-F is specified by POSIX.)
-x, --line-regexp
Select only those matches that exactly match the whole line. (-x is specified by POSIX.)
-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with zero status if any match is
found, even if an error was detected. Also see the -s or --no-messages option. (-q is specified by
POSIX.)
a simpler solution:
lst = [1,2,3,a,b,c]
query = f"""SELECT * FROM table WHERE IN {str(lst)[1:-1}"""
See wp_get_post_terms(), you'd do something like so:
global $post;
$terms = wp_get_post_terms( $post->ID, 'YOUR_TAXONOMY_NAME',array('fields' => 'ids') );
print_r($terms);
Easiest way would be to use join like this:
>>> myTuple = ['h','e','l','l','o']
>>> ''.join(myTuple)
'hello'
This works because your delimiter is essentially nothing, not even a blank space: ''.
In my case I forgot to enable
app.use(express.json());
in my NodeJs server.
It's not an issue related to authentication at the first step. Your import
is not working. So, try writing this on first line:
#!/usr/bin/python
and for the time being run using
python xx.py
For you here is one explanation:
>>> abc = "Hei Buddy"
>>> print "%s" %abc
Hei Buddy
>>>
>>> print "%s" %xyz
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
print "%s" %xyz
NameError: name 'xyz' is not defined
At first, I initialized abc variable and it works fine. On the otherhand, xyz doesn't work as it is not initialized!
If you are developing an Ionic app be sure to include jquery and jquery-ui before ionic.bundle.js!
such a waste of time for something so trivial :(
Try this script to get your browser language
<script type="text/javascript">_x000D_
var userLang = navigator.language || navigator.userLanguage; _x000D_
alert ("The language is: " + userLang);_x000D_
</script>
_x000D_
Cheers
$userRecord = Model::where([['email','=',$email],['password','=', $password]])->first();
or
$userRecord = self::where([['email','=',$email],['password','=', $password]])->first();
I` think this condition is better then 2 where. Its where condition array in array of where conditions;
:-) Sunday | 0 -> Sun
|
Monday | 1 -> Mon
Tuesday | 2 -> Tue
Wednesday | 3 -> Wed
Thursday | 4 -> Thu
Friday | 5 -> Fri
Saturday | 6 -> Sat
|
:-) Sunday | 7 -> Sun
As you can see above, and as said before, the numbers 0
and 7
are both assigned to Sunday. There are also the English abbreviated days of the week listed, which can also be used in the crontab.
Examples of Number or Abbreviation Use
15 09 * * 5,6,0 command
15 09 * * 5,6,7 command
15 09 * * 5-7 command
15 09 * * Fri,Sat,Sun command
The four examples do all the same and execute a command every Friday, Saturday, and Sunday at 9.15 o'clock.
In Detail
Having two numbers 0
and 7
for Sunday can be useful for writing weekday ranges starting with 0
or ending with 7
. So you can write ranges starting with Sunday or ending with it, like 0-2
or 5-7
for example (ranges must start with the lower number and must end with the higher). The abbreviations cannot be used to define a weekday range.
nametext
is an std::string
but these do not have the stream insertion operator (<<
) like output streams do.
To concatenate strings you can use the append
member function (or its equivalent, +=
, which works in the exact same way) or the +
operator, which creates a new string as a result of concatenating the previous two.
I've just had an email from a github.com admin stating the following: "We normally advise people to use the HTTPS URL unless they have a specific reason to be using the SSH protocol. HTTPS is secure and easier to set up, so we default to that when a new repository is created."
The password prompt does indeed accept the normal github.com login details. A tutorial on how to set up password caching can be found here. I followed the steps in the tutorial, and it worked for me.
For Python 3.x
import urllib.request
from urllib.error import HTTPError
try:
urllib.request.urlretrieve(url, fullpath)
except urllib.error.HTTPError as err:
print(err.code)
It works with signed and unsigned values used powerful bit manipulation and generates the first zeroes on the left.
public static String representDigits(int num) {
int checkBit = 1 << (Integer.SIZE * 8 - 2 ); // avoid the first digit
StringBuffer sb = new StringBuffer();
if (num < 0 ) { // checking the first digit
sb.append("1");
} else {
sb.append("0");
}
while(checkBit != 0) {
if ((num & checkBit) == checkBit){
sb.append("1");
} else {
sb.append("0");
}
checkBit >>= 1;
}
return sb.toString();
}
Use BufferedReader and InputStreamReader classes.
BufferedReader buffer=new BufferedReader(new InputStreamReader(System.in));
String line=buffer.readLine();
Or use java.util.Scanner
class methods.
Scanner scan=new Scanner(System.in);
I was trying to use Feign, while I encounter same issue, As I understood HTTP message converter will help but wanted to understand how to achieve this.
@FeignClient(name = "mobilesearch", url = "${mobile.search.uri}" ,
fallbackFactory = MobileSearchFallbackFactory.class,
configuration = MobileSearchFeignConfig.class)
public interface MobileSearchClient {
@RequestMapping(method = RequestMethod.GET)
List<MobileSearchResponse> getPhones();
}
You have to use Customer Configuration for the decoder, MobileSearchFeignConfig,
public class MobileSearchFeignConfig {
@Bean
Logger.Level feignLoggerLevel() {
return Logger.Level.FULL;
}
@Bean
public Decoder feignDecoder() {
return new ResponseEntityDecoder(new SpringDecoder(feignHttpMessageConverter()));
}
public ObjectFactory<HttpMessageConverters> feignHttpMessageConverter() {
final HttpMessageConverters httpMessageConverters = new HttpMessageConverters(new MappingJackson2HttpMessageConverter());
return new ObjectFactory<HttpMessageConverters>() {
@Override
public HttpMessageConverters getObject() throws BeansException {
return httpMessageConverters;
}
};
}
public class MappingJackson2HttpMessageConverter extends org.springframework.http.converter.json.MappingJackson2HttpMessageConverter {
MappingJackson2HttpMessageConverter() {
List<MediaType> mediaTypes = new ArrayList<>();
mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8"));
setSupportedMediaTypes(mediaTypes);
}
}
}
It isn't getting called because you have a return statement above it. In the following code:
function test(){
return 1;
doStuff();
}
doStuff() will never be called. What I would suggest is writing a wrapper function
function wrapper(){
if (validateView()){
showDiv();
return true;
}
}
and then call the wrapper function from your onclick
handler.
Try this:
<select id="sel">
<option value='1'>One</option>
<option value='2'>Two</option>
<option value='3'>Three</option>
</select>
<input type="button" value="Change option to 2" onclick="changeOpt()"/>
<script>
function changeOpt(){
document.getElementById("sel").options[1].selected = true;
alert("changed")
}
</script>
I'd do
for i in `seq 0 2 10`; do echo $i; done
(though of course seq 0 2 10
will produce the same output on its own).
Note that seq
allows floating-point numbers (e.g., seq .5 .25 3.5
) but bash's brace expansion only allows integers.
RUN git clone http://username:password@url/example.git
WORKDIR /folder
RUN make
I am using project is not Spring or spring boot based application. I have multiple subprojects and they are nested one within another. The answers shown here supports on first level of subproject. If I added another sub project for source code attachement, it is not allowing me saying folder already exists error.
Looks like eclipse is out dated IDE. I am using the latest version of Eclipse version 2015-2019. It is killing all my time.
My intension is run the application in debug mode navigate through the sub projects which are added as external dependencies (non modifiable).
For me the easiest way was to read the last versions of the project with a combination of curl, grep, sort and tail.
My format: service-(version: 1.9.23)-(buildnumber)156.tar.gz
versionToDownload=$(curl -u$user:$password 'https://$artifactory/artifactory/$project/' | grep -o 'service-[^"]*.tar.gz' | sort | tail -1)
it seems that the OP meant to find out whether the string 'Mel' exists in a particular column, not contained in a column, therefore the use of contains is not needed, and is not efficient. A simple equals-to is enough:
(a['Names']=='Mel').any()
{{convertToDate | date : dateformat}}
$rootScope.dateFormat = 'MM/dd/yyyy';
This works very nicely in SQL 2005:
DECLARE @inserted_ids TABLE ([id] INT);
INSERT INTO [dbo].[some_table] ([col1],[col2],[col3],[col4],[col5],[col6])
OUTPUT INSERTED.[id] INTO @inserted_ids
VALUES (@col1,@col2,@col3,@col4,@col5,@col6)
It has the benefit of returning all the IDs if your INSERT statement inserts multiple rows.
int currentNum = 5;
double sqrRoot = 0.0;
int sqrRootInt = 0;
sqrRoot=Math.sqrt(currentNum);
sqrRootInt= (int)sqrRoot;
<?php
$serverName = "ServerName";
$uid = "sqlusername";
$pwd = "sqlpassword";
$databaseName = "DBName";
$connectionInfo = array( "UID"=>$uid,
"PWD"=>$pwd,
"Database"=>$databaseName);
/* Connect using SQL Server Authentication. */
$conn = sqlsrv_connect( $serverName, $connectionInfo);
$tsql = "SELECT id, FirstName, LastName, Email FROM tblContact";
/* Execute the query. */
$stmt = sqlsrv_query( $conn, $tsql);
if ( $stmt )
{
echo "Statement executed.<br>\n";
}
else
{
echo "Error in statement execution.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Iterate through the result set printing a row of data upon each iteration.*/
while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_NUMERIC))
{
echo "Col1: ".$row[0]."\n";
echo "Col2: ".$row[1]."\n";
echo "Col3: ".$row[2]."<br>\n";
echo "-----------------<br>\n";
}
/* Free statement and connection resources. */
sqlsrv_free_stmt( $stmt);
sqlsrv_close( $conn);
?>
http://robsphp.blogspot.ae/2012/09/how-to-install-microsofts-sql-server.html
What you are looking for is this:
$(".subclass", this).css("visibility","visible");
Add the this
after the class $(".subclass", this)
this part :
"Your new price is: $"(float(price)
asks python to call this string:
"Your new price is: $"
just like you would a function:
function( some_args)
which will ALWAYS trigger the error:
TypeError: 'str' object is not callable
You can use Tersus (open source), and it lets you export the app as an Xcode project.
One more simple way is using the File.AppendText
it appends UTF-8 encoded text to an existing file, or to a new file if the specified file does not exist and returns a System.IO.StreamWriter
using (System.IO.StreamWriter sw = System.IO.File.AppendText(logFilePath + "log.txt"))
{
sw.WriteLine("this is a log");
}
On MaxOSX there may be perlcc. Type man perlcc. On my system (10.6.8) it's in /usr/bin. YMMV
See http://search.cpan.org/~nwclark/perl-5.8.9/utils/perlcc.PL
See Bi Rico's answer for the general Eclipse case.
For anybody - like me - who lands here because you have lots of windows and you're struggling to close them all, just killing python can be effective, depending on your circumstances. It probably works under almost any circumstances - including with Eclipse.
I just spawned 60 plots from emacs (I prefer that to eclipse) and then I thought my script had exited. Running close('all')
in my ipython window did not work for me because the plots did not come from ipython, so I resorted to looking for running python processes.
When I killed the interpreter running the script, then all 60 plots were closed - e.g.,
$ ps aux | grep python
rsage 11665 0.1 0.6 649904 109692 ? SNl 10:54 0:03 /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
rsage 12111 0.9 0.5 390956 88212 pts/30 Sl+ 11:08 0:17 /usr/bin/python /usr/bin/ipython -pylab
rsage 12410 31.8 2.4 576640 406304 pts/33 Sl+ 11:38 0:06 python3 ../plot_motor_data.py
rsage 12431 0.0 0.0 8860 648 pts/32 S+ 11:38 0:00 grep python
$ kill 12410
Note that I did not kill my ipython/pylab, nor did I kill the update manager (killing the update manager is probably a bad idea)...
Most of the databases follow the basic syntax,
INSERT INTO TABLE_NAME
SELECT COL1, COL2 ...
FROM TABLE_YOU_NEED_TO_TAKE_FROM
;
Every database I have used follow this syntax namely, DB2
, SQL Server
, MY SQL
, PostgresQL
Add the code below in the PageLoad
Event:
ScriptManager.RegisterStartupScript(Page, this.GetType(), "myScript", "alert('OK Done.');", true);
This is happen due to the id(auto increment filed missing). If you edit it in a text editor by adding a comma for the ID field this will be solved.
You can use the code below. It selects the pre-existing value in the field and overwrites it with the new value.
driver.findElement(By.xpath("*enter your xpath here*")).sendKeys(Keys.chord(Keys.CONTROL, "a"),*enter the new value here*);
The easiest way I've found to do this is to write in markdown right from the start of the line. Press Ctrl+D
(shortcut for opening the markup input dialog) and type markdown. The normal wiki editor doesn't seem to be very good for precise formatting. It doesn't seem to know much about character styles and only knows paragraph styles.
based on http://web.archive.org/web/20080218124946/http://sqlserver2005.databases.aspfaq.com/how-do-i-mimic-sp-who2.html
i have created following script ,
which resolves finding active connections to any datbase using DMV this works under sql 2005 , 2008 and 2008R2
Following script uses sys.dm_exec_sessions , sys.dm_exec_requests , sys.dm_exec_connections , sys.dm_tran_locks
Declare @dbName varchar(1000)
set @dbName='abc'
;WITH DBConn(SPID,[Status],[Login],HostName,DBName,Command,LastBatch,ProgramName)
As
(
SELECT
SPID = s.session_id,
Status = UPPER(COALESCE
(
r.status,
ot.task_state,
s.status,
'')),
[Login] = s.login_name,
HostName = COALESCE
(
s.[host_name],
' .'
),
DBName = COALESCE
(
DB_NAME(COALESCE
(
r.database_id,
t.database_id
)),
''
),
Command = COALESCE
(
r.Command,
r.wait_type,
wt.wait_type,
r.last_wait_type,
''
),
LastBatch = COALESCE
(
r.start_time,
s.last_request_start_time
),
ProgramName = COALESCE
(
s.program_name,
''
)
FROM
sys.dm_exec_sessions s
LEFT OUTER JOIN
sys.dm_exec_requests r
ON
s.session_id = r.session_id
LEFT OUTER JOIN
sys.dm_exec_connections c
ON
s.session_id = c.session_id
LEFT OUTER JOIN
(
SELECT
request_session_id,
database_id = MAX(resource_database_id)
FROM
sys.dm_tran_locks
GROUP BY
request_session_id
) t
ON
s.session_id = t.request_session_id
LEFT OUTER JOIN
sys.dm_os_waiting_tasks wt
ON
s.session_id = wt.session_id
LEFT OUTER JOIN
sys.dm_os_tasks ot
ON
s.session_id = ot.session_id
LEFT OUTER JOIN
(
SELECT
ot.session_id,
CPU_Time = MAX(usermode_time)
FROM
sys.dm_os_tasks ot
INNER JOIN
sys.dm_os_workers ow
ON
ot.worker_address = ow.worker_address
INNER JOIN
sys.dm_os_threads oth
ON
ow.thread_address = oth.thread_address
GROUP BY
ot.session_id
) tt
ON
s.session_id = tt.session_id
WHERE
COALESCE
(
r.command,
r.wait_type,
wt.wait_type,
r.last_wait_type,
'a'
) >= COALESCE
(
'',
'a'
)
)
Select * from DBConn
where DBName like '%'+@dbName+'%'
Firefox Screenshots is a new tool that ships with Firefox. It is not a developer tool, it is aimed at end-users of the browser.
To take a screenshot, click on the page actions menu in the address bar, and click "take a screenshot". If you then click "Save full page", it will save the full page, scrolling for you.
(source: mozilla.net)
To output an object to the console, you have to stringify the object first:
success:function(data){
console.log(JSON.stringify(data));
}
You can use Q objects for this. They can be negated with the ~
operator and combined much like normal Python expressions:
from myapp.models import Entry
from django.db.models import Q
Entry.objects.filter(~Q(id=3))
will return all entries except the one(s) with 3
as their ID:
[<Entry: Entry object>, <Entry: Entry object>, <Entry: Entry object>, ...]
The solution might be updating some tools.
Here's my scenario from 2020 with Ruby and Python:
I needed to install Python 3 on Mac and things escalated. In the end, updating homebrew, node and python lead to the problem with openssl. I did not have openssl 1.0 anymore, so I couldn't "brew switch" to it.
So what was still trying to use that old 1.0 version?
It tuned out it was Ruby 2.5.5.
So I just installed Ruby 2.5.8 and removed the old one.
Other things you can try if this is not enough: Use rbenv and pyenv. Clean up gems and formulas. Update homebrew, node, yarn. Upgrade bundler. Make sure your .bash_profile (or equivalent) is set up according to each tool's instructions. Reopen the terminal.
summation
and your other functions are defined after they're used in main
, and so the compiler has made a guess about it's signature; in other words, an implicit declaration has been assumed.
You should declare the function before it's used and get rid of the warning. In the C99 specification, this is an error.
Either move the function bodies before main
, or include method signatures before main
, e.g.:
#include <stdio.h>
int summation(int *, int *, int *);
int main()
{
// ...
Oldest:
oldest = min(datetimes)
Youngest before now:
now = datetime.datetime.now(pytz.utc)
youngest = max(dt for dt in datetimes if dt < now)
SELECT mu_file, mudate
FROM flightdata t_ext
WHERE mudate = (SELECT MAX (mudate)
FROM flightdata where mudate < sysdate)
You can nest table-cell directly within table. You muslt have a table. Starting eith table-row does not work. Try it with this HTML:
<html>
<head>
<style type="text/css">
.table {
display: table;
width: 100%;
}
.tr {
display: table-row;
width: 100%;
}
.td {
display: table-cell;
}
</style>
</head>
<body>
<div class="table">
<div class="tr">
<div class="td">
X
</div>
<div class="td">
X
</div>
<div class="td">
X
</div>
</div>
</div>
<div class="tr">
<div class="td">
X
</div>
<div class="td">
X
</div>
<div class="td">
X
</div>
</div>
<div class="table">
<div class="td">
X
</div>
<div class="td">
X
</div>
<div class="td">
X
</div>
</div>
</body>
</html>