i've been researching for that too but unfortunately the facebook device auth is still on experimental and they didn't give new keys (partner) to use the device auth.
You can find the working example here: http://oauth-device-demo.appspot.com/ Just look at the website source and you can have the appID that works with it.
The other one is twitter PIN oauth it's working and publicly available (i'm using it) https://dev.twitter.com/docs/auth/pin-based-authorization
I came here with the same question as the OP, but the answers suggesting the use of offline_access are raising red flags for me.
Security-wise, getting offline access to a user's Facebook account is qualitatively different and far more powerful than just using Facebook for single sign on, and should not be used lightly (unless you really need it). When a user grants this permission, "the application" can examine the user's account from anywhere at any time. I put "the application" in quotes because it's actually any tool that has the credentials -- you could script up a whole suite of tools that have nothing to do with the web server that can access whatever info the user has agreed to share to those credentials.
I would not use this feature to work around a short token lifetime; that's not its intended purpose. Indeed, token lifetime itself is a security feature. I'm still looking for details about the proper usage of these tokens (Can I persist them? How do/should I secure them? Does Facebook embed the OAuth 2.0 "refresh token" inside the main one? If not, where is it and/or how do I refresh?), but I'm pretty sure offline_access isn't the right way.
Both protocols were created for different reasons. OAuth was created to authorize third parties to access resources. OpenID was created to perform decentralize identity validation. This website states the following:
OAuth is a protocol designed to verify the identity of an end-user and to grant permissions to a third party. This verification results in a token. The third party can use this token to access resources on the user’s behalf. Tokens have a scope. The scope is used to verify whether a resource is accessible to a user, or not
OpenID is a protocol used for decentralised authentication. Authentication is about identity; Establishing the user is in fact the person who he claims to be. Decentralising that, means this service is unaware of the existence of any resources or applications that need to be protected. That’s the key difference between OAuth and OpenID.
This answer has been put together by the help of two senior devs (John Brayton and David Jennes).
The main reason to use a refresh token is to reduce the attack surface.
Let's suppose there is no refresh key and let’s go through this example:
A building has 80 doors. All doors are opened with the same key. The key changes every 30 minutes. At the end of the 30 minutes I have to give the old key to the keymaker and get a new key.
If I’m the hacker and get your key, then at the end of the 30 minutes, I’ll courier that to the keymaker and get a new key. I’ll be able to continuously open all doors regardless of the key changing.
Question: During the 30 minutes, how many hacking opportunities did I have against the key? I had 80 hacking opportunities, each time you used the key (think of this as making a network request and passing the access token to identify yourself). So that’s 80X attack surface.
Now let’s go through the same example but this time let’s assume there’s a refresh key.
A building has 80 doors. All doors are opened with the same key. The key changes every 30 minutes. To get a new key, I can’t pass the old access token. I must only pass the refresh key.
If I’m the hacker and get your key, I can use it for 30 minutes, but at the end of the 30 minutes sending it to the keymaker has no value. If I do, then the keymaker would just say "This token is expired. You need to refresh the token." To be able to extend my hack I would have to hack the courier to the keymaker. The courier has a distinct key (think of this as a refresh token).
Question: During the 30 minutes, how many hacking opportunities did I have against the refresh key? 80? No. I only had 1 hacking opportunity. During the time the courier communicates with the keymaker. So that’s 1X attack surface. I did have 80 hacking opportunities against the key, but they are no good after 30 minutes.
A server would verify an access token based on credentials and signing of (typically) a JWT.
An access token leaking is bad, but once it expires it is no longer useful to an attacker. A refresh token leaking is far worse, but presumably it is less likely. (I think there is room to question whether the likelihood of a refresh token leaking is much lower than that of an access token leaking, but that’s the idea.)
Point is that the access token is added to every request you make, whereas a refresh token is only used during the refresh flow So less chance of a MITM seeing the token
Frequency helps an attacker. Heartbleed-like potential security flaws in SSL, potential security flaws in the client, and potential security flaws in the server all make leaking possible.
In addition, if the authorization server is separate from the application server processing other client requests then that application server will never see refresh tokens. It will only see access tokens that will not live for much longer.
Compartmentalization is good for security.
Last but not least see this awesome answer
What refresh token is NOT about?
The ability to update/revoke access level through refresh tokens is a byproduct of choosing to use refresh tokens, otherwise a standalone access token could be revoked or have its access level modified when it expires and users gets a new token
Google doesn't allow test auth api on localhost using http://webporject.dev
or .loc
and .etc and google short link that shortened your local url(http://webporject.dev
) also bit.ly
:). Google accepts only url which starts http://localhost/
...
if you want to test google auth api you should follow these steps ...
if you use openserver
go to settings panel and click on aliases tab
and click on dropdown then find localhost
and choose it.
now you should choose your local web project root folder by clicking the next dropdown that is next to first dropdown.
and click on a button called add
and restart opensever.
now your local project available on this link http://localhost/
also you can paste this local url to google auth api to redirect url
field...
In addition to the other responses:
Once obtained, Access Tokens are typically sent along with every request from Clients to protected Resource Servers. This induce a risk for access token stealing and replay (assuming of course that access tokens are of type "Bearer" (as defined in the initial RFC6750).
Examples of those risks, in real life:
Resource Servers generally are distributed application servers and typically have lower security levels compared to Authorization Servers (lower SSL/TLS config, less hardening, etc.). Authorization Servers on the other hand are usually considered as critical Security infrastructure and are subject to more severe hardening.
Access Tokens may show up in HTTP traces, logs, etc. that are collected legitimately for diagnostic purposes on the Resource Servers or clients. Those traces can be exchanged over public or semi-public places (bug tracers, service-desk, etc.).
Backend RS applications can be outsourced to more or less trustworthy third-parties.
The Refresh Token, on the other hand, is typically transmitted only twice over the wires, and always between the client and the Authorization Server: once when obtained by client, and once when used by client during refresh (effectively "expiring" the previous refresh token). This is a drastically limited opportunity for interception and replay.
Last thought, Refresh Tokens offer very little protection, if any, against compromised clients.
I've never used it but there is a JWT implementation on NuGet.
Package: https://nuget.org/packages/JWT
Source: https://github.com/johnsheehan/jwt
.NET 4.0 compatible: https://www.nuget.org/packages/jose-jwt/
You can also go here: https://jwt.io/ and click "libraries".
If you want to secure your API in a server to server fashion (no redirection to website for 2 legged authentication). You can look at OAuth2 Client Credentials Grant protocol.
https://dev.twitter.com/docs/auth/application-only-auth
I have developed a library that can help you easily add this kind of support to your WebAPI. You can install it as a NuGet package:
https://nuget.org/packages/OAuth2ClientCredentialsGrant/1.0.0.0
The library targets .NET Framework 4.5.
Once you add the package to your project, it will create a readme file in the root of your project. You can look at that readme file to see how to configure/use this package.
Cheers!
For user check, just post get the access token as accessToken and post it and get the response
https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=accessToken
you can try in address bar in browsers too, use httppost and response in java also
response will be like
{
"issued_to": "xxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com",
"audience": "xxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com",
"user_id": "xxxxxxxxxxxxxxxxxxxxxxx",
"scope": "https://www.googleapis.com/auth/userinfo.profile https://gdata.youtube.com",
"expires_in": 3340,
"access_type": "offline"
}
The scope is the given permission of the accessToken. you can check the scope ids in this link
Update: New API post as below
https://oauth2.googleapis.com/tokeninfo?id_token=XYZ123
Response will be as
{
// These six fields are included in all Google ID Tokens.
"iss": "https://accounts.google.com",
"sub": "110169484474386276334",
"azp": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
"aud": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
"iat": "1433978353",
"exp": "1433981953",
// These seven fields are only included when the user has granted the "profile" and
// "email" OAuth scopes to the application.
"email": "[email protected]",
"email_verified": "true",
"name" : "Test User",
"picture": "https://lh4.googleusercontent.com/-kYgzyAWpZzJ/ABCDEFGHI/AAAJKLMNOP/tIXL9Ir44LE/s99-c/photo.jpg",
"given_name": "Test",
"family_name": "User",
"locale": "en"
}
For more info, https://developers.google.com/identity/sign-in/android/backend-auth
use "Content-type: application/x-www-form-urlencoded" instead of "application/json"
The problem, and the answers, keep changing as FB tightens up the login procedure. Today, I started getting this horror message "The domain of this URL isn't included in the app's domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings."
The answer was: now FB wants the full redirect uri. So for me, where it used to be just https://www.example.com it now wants https://www.example.com/auth/facebook/callback. This has to go in the "Valid OAuth redirect URIs" field (Developer/Facebook login->setting)
manage_pages
permission (you may need the user_events
permission too, not sure)me/accounts
connection and copy your page's access_token
access_token
to the GET fieldsPAGE_ID/events
)aud
(Audience) ClaimAccording to RFC 7519:
The "aud" (audience) claim identifies the recipients that the JWT is intended for. Each principal intended to process the JWT MUST identify itself with a value in the audience claim. If the principal processing the claim does not identify itself with a value in the "aud" claim when this claim is present, then the JWT MUST be rejected. In the general case, the "aud" value is an array of case- sensitive strings, each containing a StringOrURI value. In the special case when the JWT has one audience, the "aud" value MAY be a single case-sensitive string containing a StringOrURI value. The interpretation of audience values is generally application specific. Use of this claim is OPTIONAL.
The Audience (aud
) claim as defined by the spec is generic, and is application specific. The intended use is to identify intended recipients of the token. What a recipient means is application specific. An audience value is either a list of strings, or it can be a single string if there is only one aud
claim. The creator of the token does not enforce that aud
is validated correctly, the responsibility is the recipient's to determine whether the token should be used.
Whatever the value is, when a recipient is validating the JWT and it wishes to validate that the token was intended to be used for its purposes, it MUST determine what value in aud
identifies itself, and the token should only validate if the recipient's declared ID is present in the aud
claim. It does not matter if this is a URL or some other application specific string. For example, if my system decides to identify itself in aud
with the string: api3.app.com
, then it should only accept the JWT if the aud
claim contains api3.app.com
in its list of audience values.
Of course, recipients may choose to disregard aud
, so this is only useful if a recipient would like positive validation that the token was created for it specifically.
My interpretation based on the specification is that the aud
claim is useful to create purpose-built JWTs that are only valid for certain purposes. For one system, this may mean you would like a token to be valid for some features but not for others. You could issue tokens that are restricted to only a certain "audience", while still using the same keys and validation algorithm.
Since in the typical case a JWT is generated by a trusted service, and used by other trusted systems (systems which do not want to use invalid tokens), these systems simply need to coordinate the values they will be using.
Of course, aud
is completely optional and can be ignored if your use case doesn't warrant it. If you don't want to restrict tokens to being used by specific audiences, or none of your systems actually will validate the aud
token, then it is useless.
One contrived (yet simple) example I can think of is perhaps we want to use JWTs for access and refresh tokens without having to implement separate encryption keys and algorithms, but simply want to ensure that access tokens will not validate as refresh tokens, or vice-versa.
By using aud
, we can specify a claim of refresh
for refresh tokens and a claim of access
for access tokens upon creating these tokens. When a request is made to get a new access token from a refresh token, we need to validate that the refresh token was a genuine refresh token. The aud
validation as described above will tell us whether the token was actually a valid refresh token by looking specifically for a claim of refresh
in aud
.
aud
ClaimThe OAuth Client ID is completely unrelated, and has no direct correlation to JWT aud
claims. From the perspective of OAuth, the tokens are opaque objects.
The application which accepts these tokens is responsible for parsing and validating the meaning of these tokens. I don't see much value in specifying OAuth Client ID within a JWT aud
claim.
request.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue(
"Basic", Convert.ToBase64String(
System.Text.Encoding.UTF8.GetBytes(
$"{yourusername}:{yourpwd}")));
This works as of now - and is documented on facebook's site @ http://developers.facebook.com/docs/authentication/. Not sure how recently it was added to the documentation, pretty sure it wasn't there when I checked Feb-2012
You can programmatically log the user our of Facebook by redirecting the user to
https://www.facebook.com/logout.php?next=YOUR_REDIRECT_URL&access_token=USER_ACCESS_TOKEN
An update on @Scott T.'s answer: the interface between Resource Server and Authorization Server for token validation was standardized in IETF RFC 7662 in October 2015, see: https://tools.ietf.org/html/rfc7662. A sample validation call would look like:
POST /introspect HTTP/1.1
Host: server.example.com
Accept: application/json
Content-Type: application/x-www-form-urlencoded
Authorization: Bearer 23410913-abewfq.123483
token=2YotnFZFEjr1zCsicMWpAA
and a sample response:
HTTP/1.1 200 OK
Content-Type: application/json
{
"active": true,
"client_id": "l238j323ds-23ij4",
"username": "jdoe",
"scope": "read write dolphin",
"sub": "Z5O3upPC88QrAjx00dis",
"aud": "https://protected.example.net/resource",
"iss": "https://server.example.com/",
"exp": 1419356238,
"iat": 1419350238,
"extension_field": "twenty-seven"
}
Of course adoption by vendors and products will have to happen over time.
There's another, very secure method. It's client certificates. Know how servers present an SSL Cert when you contact them on https? Well servers can request a cert from a client so they know the client is who they say they are. Clients generate certs and give them to you over a secure channel (like coming into your office with a USB key - preferably a non-trojaned USB key).
You load the public key of the cert client certificates (and their signer's certificate(s), if necessary) into your web server, and the web server won't accept connections from anyone except the people who have the corresponding private keys for the certs it knows about. It runs on the HTTPS layer, so you may even be able to completely skip application-level authentication like OAuth (depending on your requirements). You can abstract a layer away and create a local Certificate Authority and sign Cert Requests from clients, allowing you to skip the 'make them come into the office' and 'load certs onto the server' steps.
Pain the neck? Absolutely. Good for everything? Nope. Very secure? Yup.
It does rely on clients keeping their certificates safe however (they can't post their private keys online), and it's usually used when you sell a service to clients rather then letting anyone register and connect.
Anyway, it may not be the solution you're looking for (it probably isn't to be honest), but it's another option.
Put your url here Facebook Login -> Settings -> Valid OAuth redirect URIs AND you'll also get that error if your APP ID is wrong
The previous explanations are all overly detailed and complicated IMO. Put simply, OAuth 2 delegates security to the HTTPS protocol. OAuth 1 did not require this and consequentially had alternative methods to deal with various attacks. These methods required the application to engage in certain security protocols which are complicated and can be difficult to implement. Therefore, it is simpler to just rely on the HTTPS for security so that application developers dont need to worry about it.
As to your other questions, the answer depends. Some services dont want to require the use of HTTPS, were developed before OAuth 2, or have some other requirement which may prevent them from using OAuth 2. Furthermore, there has been a lot of debate about the OAuth 2 protocol itself. As you can see, Facebook, Google, and a few others each have slightly varying versions of the protocols implemented. So some people stick with OAuth 1 because it is more uniform across the different platforms. Recently, the OAuth 2 protocol has been finalized but we have yet to see how its adoption will take.
OAuth is a protocol that is used from Resource Owner(facebook, google, tweeter, microsoft live and so on) to provide a needed information, or to provide a permission for write success to third party system(your site for example). Most likely without OAuth protocol the credentials should be available for the third part systems which will be inappropriate way of communication between those systems.
I have different approach if you want access token and make call to other resource system with access token in header
Spring Security comes with automatic security: oauth2 properties access from application.yml file for every request and every request has SESSIONID which it reads and pull user info via Principal, so you need to make sure inject Principal in OAuthUser and get accessToken and make call to resource server
This is your application.yml, change according to your auth server:
security:
oauth2:
client:
clientId: 233668646673605
clientSecret: 33b17e044ee6a4fa383f46ec6e28ea1d
accessTokenUri: https://graph.facebook.com/oauth/access_token
userAuthorizationUri: https://www.facebook.com/dialog/oauth
tokenName: oauth_token
authenticationScheme: query
clientAuthenticationScheme: form
resource:
userInfoUri: https://graph.facebook.com/me
@Component
public class OAuthUser implements Serializable {
private static final long serialVersionUID = 1L;
private String authority;
@JsonIgnore
private String clientId;
@JsonIgnore
private String grantType;
private boolean isAuthenticated;
private Map<String, Object> userDetail = new LinkedHashMap<String, Object>();
@JsonIgnore
private String sessionId;
@JsonIgnore
private String tokenType;
@JsonIgnore
private String accessToken;
@JsonIgnore
private Principal principal;
public void setOAuthUser(Principal principal) {
this.principal = principal;
init();
}
public Principal getPrincipal() {
return principal;
}
private void init() {
if (principal != null) {
OAuth2Authentication oAuth2Authentication = (OAuth2Authentication) principal;
if (oAuth2Authentication != null) {
for (GrantedAuthority ga : oAuth2Authentication.getAuthorities()) {
setAuthority(ga.getAuthority());
}
setClientId(oAuth2Authentication.getOAuth2Request().getClientId());
setGrantType(oAuth2Authentication.getOAuth2Request().getGrantType());
setAuthenticated(oAuth2Authentication.getUserAuthentication().isAuthenticated());
OAuth2AuthenticationDetails oAuth2AuthenticationDetails = (OAuth2AuthenticationDetails) oAuth2Authentication
.getDetails();
if (oAuth2AuthenticationDetails != null) {
setSessionId(oAuth2AuthenticationDetails.getSessionId());
setTokenType(oAuth2AuthenticationDetails.getTokenType());
// This is what you will be looking for
setAccessToken(oAuth2AuthenticationDetails.getTokenValue());
}
// This detail is more related to Logged-in User
UsernamePasswordAuthenticationToken userAuthenticationToken = (UsernamePasswordAuthenticationToken) oAuth2Authentication.getUserAuthentication();
if (userAuthenticationToken != null) {
LinkedHashMap<String, Object> detailMap = (LinkedHashMap<String, Object>) userAuthenticationToken.getDetails();
if (detailMap != null) {
for (Map.Entry<String, Object> mapEntry : detailMap.entrySet()) {
//System.out.println("#### detail Key = " + mapEntry.getKey());
//System.out.println("#### detail Value = " + mapEntry.getValue());
getUserDetail().put(mapEntry.getKey(), mapEntry.getValue());
}
}
}
}
}
}
public String getAuthority() {
return authority;
}
public void setAuthority(String authority) {
this.authority = authority;
}
public String getClientId() {
return clientId;
}
public void setClientId(String clientId) {
this.clientId = clientId;
}
public String getGrantType() {
return grantType;
}
public void setGrantType(String grantType) {
this.grantType = grantType;
}
public boolean isAuthenticated() {
return isAuthenticated;
}
public void setAuthenticated(boolean isAuthenticated) {
this.isAuthenticated = isAuthenticated;
}
public Map<String, Object> getUserDetail() {
return userDetail;
}
public void setUserDetail(Map<String, Object> userDetail) {
this.userDetail = userDetail;
}
public String getSessionId() {
return sessionId;
}
public void setSessionId(String sessionId) {
this.sessionId = sessionId;
}
public String getTokenType() {
return tokenType;
}
public void setTokenType(String tokenType) {
this.tokenType = tokenType;
}
public String getAccessToken() {
return accessToken;
}
public void setAccessToken(String accessToken) {
this.accessToken = accessToken;
}
@Override
public String toString() {
return "OAuthUser [clientId=" + clientId + ", grantType=" + grantType + ", isAuthenticated=" + isAuthenticated
+ ", userDetail=" + userDetail + ", sessionId=" + sessionId + ", tokenType="
+ tokenType + ", accessToken= " + accessToken + " ]";
}
@RestController
public class YourController {
@Autowired
OAuthUser oAuthUser;
// In case if you want to see Profile of user then you this
@RequestMapping(value = "/profile", produces = MediaType.APPLICATION_JSON_VALUE)
public OAuthUser user(Principal principal) {
oAuthUser.setOAuthUser(principal);
// System.out.println("#### Inside user() - oAuthUser.toString() = " + oAuthUser.toString());
return oAuthUser;
}
@RequestMapping(value = "/createOrder",
method = RequestMethod.POST,
headers = {"Content-type=application/json"},
consumes = MediaType.APPLICATION_JSON_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public FinalOrderDetail createOrder(@RequestBody CreateOrder createOrder) {
return postCreateOrder_restTemplate(createOrder, oAuthUser).getBody();
}
private ResponseEntity<String> postCreateOrder_restTemplate(CreateOrder createOrder, OAuthUser oAuthUser) {
String url_POST = "your post url goes here";
MultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
headers.add("Authorization", String.format("%s %s", oAuthUser.getTokenType(), oAuthUser.getAccessToken()));
headers.add("Content-Type", "application/json");
RestTemplate restTemplate = new RestTemplate();
//restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
HttpEntity<String> request = new HttpEntity<String>(createOrder, headers);
ResponseEntity<String> result = restTemplate.exchange(url_POST, HttpMethod.POST, request, String.class);
System.out.println("#### post response = " + result);
return result;
}
}
To get the actual access_token
, you can also do pro grammatically via the following PHP code:
require 'facebook.php';
$facebook = new Facebook(array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
));
// Get User ID
$user = $facebook->getUser();
if ($user) {
try {
$user_profile = $facebook->api('/me');
$access_token = $facebook->getAccessToken();
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
A bearer token is like a currency note e.g 100$ bill . One can use the currency note without being asked any/many questions.
Bearer Token A security token with the property that any party in possession of the token (a "bearer") can use the token in any way that any other party in possession of it can. Using a bearer token does not require a bearer to prove possession of cryptographic key material (proof-of-possession).
It's one end of a communication channel, so often this would be represented as the URL of a server or service.
Remember that your suggestions makes it difficult for clients to communicate with the server. They need to understand your innovative solution and encrypt the data accordingly, this model is not so good for public API (unless you are amazon\yahoo\google..).
Anyways, if you must encrypt the body content I would suggest you to check out existing standards and solutions like:
XML encryption (W3C standard)
Jwt is a strict set of instructions for the issuing and validating of signed access tokens. The tokens contain claims that are used by an app to limit access to a user
OAuth2 on the other hand is not a protocol, its a delegated authorization framework. think very detailed guideline, for letting users and applications authorize specific permissions to other applications in both private and public settings. OpenID Connect which sits on top of OAUTH2 gives you Authentication and Authorization.it details how multiple different roles, users in your system, server side apps like an API, and clients such as websites or native mobile apps, can authenticate with each othe
Note oauth2 can work with jwt , flexible implementation, extandable to different applications
If the SSL certificates are not properly installed in your system, you may get this error:
cURL error 60: SSL certificate problem: unable to get local issuer certificate.
You can solve this issue as follows:
Download a file with the updated list of certificates from https://curl.haxx.se/ca/cacert.pem
Move the downloaded cacert.pem
file to some safe location in your system
Update your php.ini
file and configure the path to that file:
If you're in a client-side web environment, the new auth2 javascript API contains a much-needed getBasicProfile()
function, which returns the user's name, email, and image URL.
https://developers.google.com/identity/sign-in/web/reference#googleusergetbasicprofile
I just want to add that there is a master list of IntelliJ suppress parameters at: https://gist.github.com/vegaasen/157fbc6dce8545b7f12c
It looks fairly comprehensive. Partial:
Warning Description - Warning Name
"Magic character" MagicCharacter
"Magic number" MagicNumber
'Comparator.compare()' method does not use parameter ComparatorMethodParameterNotUsed
'Connection.prepare*()' call with non-constant string JDBCPrepareStatementWithNonConstantString
'Iterator.hasNext()' which calls 'next()' IteratorHasNextCallsIteratorNext
'Iterator.next()' which can't throw 'NoSuchElementException' IteratorNextCanNotThrowNoSuchElementException
'Statement.execute()' call with non-constant string JDBCExecuteWithNonConstantString
'String.equals("")' StringEqualsEmptyString
'StringBuffer' may be 'StringBuilder' (JDK 5.0 only) StringBufferMayBeStringBuilder
'StringBuffer.toString()' in concatenation StringBufferToStringInConcatenation
'assert' statement AssertStatement
'assertEquals()' between objects of inconvertible types AssertEqualsBetweenInconvertibleTypes
'await()' not in loop AwaitNotInLoop
'await()' without corresponding 'signal()' AwaitWithoutCorrespondingSignal
'break' statement BreakStatement
'break' statement with label BreakStatementWithLabel
'catch' generic class CatchGenericClass
'clone()' does not call 'super.clone()' CloneDoesntCallSuperClone
I think this might be helpful:
The solution would be filtering the processes with exact pattern , parse the pid, and construct an argument list for executing kill processes:
ps -ef | grep -e <serviceNameA> -e <serviceNameB> -e <serviceNameC> |
awk '{print $2}' | xargs sudo kill -9
Explanation from documenation:
ps utility displays a header line, followed by lines containing information about all of your processes that have controlling terminals.
-e Display information about other users' processes, including those
-f Display the uid, pid, parent pid, recent CPU usage, process start
The grep utility searches any given input files, selecting lines that
-e pattern, --regexp=pattern Specify a pattern used during the search of the input: an input line is selected if it matches any of the specified patterns. This option is most useful when multiple -e options are used to specify multiple patterns, or when a pattern begins with a dash (`-').
xargs - construct argument list(s) and execute utility
kill - terminate or signal a process
number 9 signal - KILL (non-catchable, non-ignorable kill)
Example:
ps -ef | grep -e node -e loggerUploadService.sh - -e applicationService.js |
awk '{print $2}' | xargs sudo kill -9
Download Git on Msys. Then:
git clone git://project.url.here
Your code is passing a function as an argument to find
. That function takes an element
argument (of type Conversation
) and returns void
(meaning there is no return value). TypeScript describes this as (element: Conversation) => void'
What TypeScript is saying is that the find
function doesn't expect to receive a function that takes a Conversation and returns void. It expects a function that takes a Conversations
, a number
and a Conversation
array, and that this function should return a boolean
.
So bottom line is that you either need to change your code to pass in the values to find
correctly, or else you need to provide an overload to the definition of find
in your definition file that accepts a Conversation
and returns void
.
update from one table to another table on id matched
UPDATE
TABLE1 t1,
TABLE2 t2
SET
t1.column_name = t2.column_name
WHERE
t1.id = t2.id;
private DataTable CreateDataTable(IList<T> item)
{
Type type = typeof(T);
var properties = type.GetProperties();
DataTable dataTable = new DataTable();
foreach (PropertyInfo info in properties)
{
dataTable.Columns.Add(new DataColumn(info.Name, Nullable.GetUnderlyingType(info.PropertyType) ?? info.PropertyType));
}
foreach (T entity in item)
{
object[] values = new object[properties.Length];
for (int i = 0; i < properties.Length; i++)
{
values[i] = properties[i].GetValue(entity);
}
dataTable.Rows.Add(values);
}
return dataTable;
}
The root problem is that WebKit browsers (Safari and Chrome) load JavaScript and CSS information in parallel. Thus, JavaScript may execute before the styling effects of CSS have been computed, returning the wrong answer. In jQuery, I've found that the solution is to wait until document.readyState == 'complete', .e.g.,
jQuery(document).ready(function(){
if (jQuery.browser.safari && document.readyState != "complete"){
//console.info('ready...');
setTimeout( arguments.callee, 100 );
return;
}
... (rest of function)
As far as width and height goes... depending on what you are doing you may want offsetWidth and offsetHeight, which include things like borders and padding.
I solved this issue by doing like that:
insert into my_table(my_field_0, ..., my_field_n) values(my_value_0, ..., my_value_n)
For people who find this via search engines, you do not need VBA. You can just:
1.) select the query or table with your mouse
2.) click export data from the ribbon
3.) click excel from the export subgroup
4.) follow the wizard to select the output file and location.
make the image the exact size needed in the email. Windows MSO has a hard time resizing images in different scenarios.
in the case of using a 1px by 1px transparent png or gif as a spacer, defining the dimensions via width, height, or style attributes will work as expected in the majority of clients, but not windows MSO (of course).
example use case - you are using a background image and need to position a with a link inside over some part of the background image. Using a 1px by 1px spacer gif/png will only expand so wide (about 30px). You need size the spacer to the exact dimensions.
in my case i forgot to add / in front of file name after i added i got rid of from it
bitmap.compress(Bitmap.CompressFormat.PNG,100,new FileOutputStream(Environment.getExternalStorageDirectory()+"/arjunreddy.png"));
HttpClient.get()
applies res.json()
automatically and returns Observable<HttpResponse<string>>
. You no longer need to call this function yourself.
To add an exclusion for logback from Netbeans IDE
Right click on the jar and select Exclude Dependency as shown below. This excludes the logback jar on the pom.xml like this;
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
I see you're having issues with the social share links. I had a similar issue at some point and found this question, but I don't see a complete answer for it. I hope my javascript resolution from below will help:
I had default sharing links that needed to be modified so that the URL that's being shared will have additional UTM parameters concatenated.
My example will be for the Facebook social share link, but it works for all the possible social sharing network links:
The URL that needed to be shared was:
https://mywebsitesite.com/blog/post-name
The default sharing link looked like:
$facebook_default = "https://www.facebook.com/sharer.php?u=https%3A%2F%2mywebsitesite.com%2Fblog%2Fpost-name%2F&t=hello"
I first DECODED it:
console.log( decodeURIComponent($facebook_default) );
=>
https://www.facebook.com/sharer.php?u=https://mywebsitesite.com/blog/post-name/&t=hello
Then I replaced the URL with the encoded new URL (with the UTM parameters concatenated):
console.log( decodeURIComponent($facebook_default).replace( window.location.href, encodeURIComponent(window.location.href+'?utm_medium=social&utm_source=facebook')) );
=>
https://www.facebook.com/sharer.php?u=https%3A%2F%mywebsitesite.com%2Fblog%2Fpost-name%2F%3Futm_medium%3Dsocial%26utm_source%3Dfacebook&t=2018
That's it!
Complete solution:
$facebook_default = $('a.facebook_default_link').attr('href');
$('a.facebook_default_link').attr( 'href', decodeURIComponent($facebook_default).replace( window.location.href, encodeURIComponent(window.location.href+'?utm_medium=social&utm_source=facebook')) );
jQuery(function() {_x000D_
jQuery('#showall').click(function() {_x000D_
jQuery('.targetDiv').show();_x000D_
});_x000D_
jQuery('.showSingle').click(function() {_x000D_
jQuery('.targetDiv').hide();_x000D_
jQuery('#div' + $(this).attr('target')).show();_x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<div class="buttons">_x000D_
<a id="showall">All</a>_x000D_
<a class="showSingle" target="1">Div 1</a>_x000D_
<a class="showSingle" target="2">Div 2</a>_x000D_
<a class="showSingle" target="3">Div 3</a>_x000D_
<a class="showSingle" target="4">Div 4</a>_x000D_
</div>_x000D_
_x000D_
<div id="div1" class="targetDiv">Lorum Ipsum1</div>_x000D_
<div id="div2" class="targetDiv">Lorum Ipsum2</div>_x000D_
<div id="div3" class="targetDiv">Lorum Ipsum3</div>_x000D_
<div id="div4" class="targetDiv">Lorum Ipsum4</div>
_x000D_
There should be a container that maps component names to all components that are supposed to be used dynamically. Component classes should be registered in a container because in modular environment there's otherwise no single place where they could be accessed. Component classes cannot be identified by their names without specifying them explicitly because function name
is minified in production.
It can be plain object:
class Foo extends React.Component { ... }
...
const componentsMap = { Foo, Bar };
...
const componentName = 'Fo' + 'o';
const DynamicComponent = componentsMap[componentName];
<DynamicComponent/>;
Or Map
instance:
const componentsMap = new Map([[Foo, Foo], [Bar, Bar]]);
...
const DynamicComponent = componentsMap.get(componentName);
Plain object is more suitable because it benefits from property shorthand.
A barrel module with named exports can act as such map:
// Foo.js
export class Foo extends React.Component { ... }
// dynamic-components.js
export * from './Foo';
export * from './Bar';
// some module that uses dynamic component
import * as componentsMap from './dynamic-components';
const componentName = 'Fo' + 'o';
const DynamicComponent = componentsMap[componentName];
<DynamicComponent/>;
This works well with one class per module code style.
Decorators can be used with class components for syntactic sugar, this still requires to specify class names explicitly and register them in a map:
const componentsMap = {};
function dynamic(Component) {
if (!Component.displayName)
throw new Error('no name');
componentsMap[Component.displayName] = Component;
return Component;
}
...
@dynamic
class Foo extends React.Component {
static displayName = 'Foo'
...
}
A decorator can be used as higher-order component with functional components:
const Bar = props => ...;
Bar.displayName = 'Bar';
export default dynamic(Bar);
The use of non-standard displayName
instead of random property also benefits debugging.
I know this is an old question. But i couldnt get the jquery $(this).change() event to fire correctly onSelect. So i went with the following approach to fire the change event via vanilla js.
$('.date').datepicker({
showOn: 'focus',
dateFormat: 'mm-dd-yy',
changeMonth: true,
changeYear: true,
onSelect: function() {
var event;
if(typeof window.Event == "function"){
event = new Event('change');
this.dispatchEvent(event);
} else {
event = document.createEvent('HTMLEvents');
event.initEvent('change', false, false);
this.dispatchEvent(event);
}
}
});
1) If the object is created via a pointer and that pointer is later deleted or given a new address to point to, does the object that it was pointing to call its destructor (assuming nothing else is pointing to it)?
It depends on the type of pointers. For example, smart pointers often delete their objects when they are deleted. Ordinary pointers do not. The same is true when a pointer is made to point to a different object. Some smart pointers will destroy the old object, or will destroy it if it has no more references. Ordinary pointers have no such smarts. They just hold an address and allow you to perform operations on the objects they point to by specifically doing so.
2) Following up on question 1, what defines when an object goes out of scope (not regarding to when an object leaves a given {block}). So, in other words, when is a destructor called on an object in a linked list?
That's up to the implementation of the linked list. Typical collections destroy all their contained objects when they are destroyed.
So, a linked list of pointers would typically destroy the pointers but not the objects they point to. (Which may be correct. They may be references by other pointers.) A linked list specifically designed to contain pointers, however, might delete the objects on its own destruction.
A linked list of smart pointers could automatically delete the objects when the pointers are deleted, or do so if they had no more references. It's all up to you to pick the pieces that do what you want.
3) Would you ever want to call a destructor manually?
Sure. One example would be if you want to replace an object with another object of the same type but don't want to free memory just to allocate it again. You can destroy the old object in place and construct a new one in place. (However, generally this is a bad idea.)
// pointer is destroyed because it goes out of scope,
// but not the object it pointed to. memory leak
if (1) {
Foo *myfoo = new Foo("foo");
}
// pointer is destroyed because it goes out of scope,
// object it points to is deleted. no memory leak
if(1) {
Foo *myfoo = new Foo("foo");
delete myfoo;
}
// no memory leak, object goes out of scope
if(1) {
Foo myfoo("foo");
}
Adding the actual quote characters is only a tiny fraction of the problem; once you have done that, you are likely to face the real problem: what happens if the string already contains quotes, or line feeds, or other unprintable characters?
The following method will take care of everything:
public static String escapeForJava( String value, boolean quote )
{
StringBuilder builder = new StringBuilder();
if( quote )
builder.append( "\"" );
for( char c : value.toCharArray() )
{
if( c == '\'' )
builder.append( "\\'" );
else if ( c == '\"' )
builder.append( "\\\"" );
else if( c == '\r' )
builder.append( "\\r" );
else if( c == '\n' )
builder.append( "\\n" );
else if( c == '\t' )
builder.append( "\\t" );
else if( c < 32 || c >= 127 )
builder.append( String.format( "\\u%04x", (int)c ) );
else
builder.append( c );
}
if( quote )
builder.append( "\"" );
return builder.toString();
}
Just try this in Javascript:
$previous = "javascript:history.go(-1)";
Or you can try it in PHP:
if(isset($_SERVER['HTTP_REFERER'])) {
$previous = $_SERVER['HTTP_REFERER'];
}
Bootstrap 3
Yes, it's possible. This "off-canvas" example should help to get you started.
https://codeply.com/p/esYgHWB2zJ
Basically you need to wrap the layout in an outer div, and use media queries to toggle the layout on smaller screens.
/* collapsed sidebar styles */
@media screen and (max-width: 767px) {
.row-offcanvas {
position: relative;
-webkit-transition: all 0.25s ease-out;
-moz-transition: all 0.25s ease-out;
transition: all 0.25s ease-out;
}
.row-offcanvas-right
.sidebar-offcanvas {
right: -41.6%;
}
.row-offcanvas-left
.sidebar-offcanvas {
left: -41.6%;
}
.row-offcanvas-right.active {
right: 41.6%;
}
.row-offcanvas-left.active {
left: 41.6%;
}
.sidebar-offcanvas {
position: absolute;
top: 0;
width: 41.6%;
}
#sidebar {
padding-top:0;
}
}
Also, there are several more Bootstrap sidebar examples here
Bootstrap 4
One way to do this is to pull your field into the rows section of the pivot table from the Filter section. Then group the values that you want to keep into a group, using the group option on the menu. After that is completed, drag your field back into the Filters section. The grouping will remain and you can check or uncheck one box to remove lots of values.
I found some trick for your problem! Here you can see it: Habrahabr -- Redesigning Qt Creator by your hands (russian lang.)
According to that article, that trick is kind of not so dirty, but "hack" (probably it wouldn't harm your system, but it can leave some artifacts on your interface).
You don't need to patch something (there is possibility, but I don't recommend).
Main idea is to use stylesheet like this stylesheet.css:
// on Linux
qtcreator -stylesheet='.qt-stylesheet.css'
// on Windows
[pathToQt]\QtCreator\bin\qtcreator.exe -stylesheet [pathToStyleSheet]
To get such effect:
To customize by your needs, you may need to read documentation: Qt Style Sheets Reference, Qt Style Sheets Examples and so on.
This wiki page is dedicated to custom Qt Creator styling.
P.S. If you'll got better stylesheet, share it, I'll be happy! :)
UPD (10.12.2014): Hopefully, now we can close this topic. Thanks, Simon G., Things have changed once again. Users may use custom themes since QtCreator 3.3. So hacky stylesheets are no longer needed.
Everyone can take a look at todays update: Qt 5.4 released. There you can find information that Qt 5.4, also comes with a brand new version of Qt Creator 3.3. Just take a look at official video at Youtube.
So, to apply dark theme you need go to "Tools" -> "Options" -> "Environment" -> "General" tab, and there you need to change "Theme".
See more information about its configuring here: Configuring Qt Creator.
The below code worked fine:
Run Keyword if '${value1}' \ \ == \ \ '${cost1}' \ and \ \ '${value2}' \ \ == \ \ 'cost2' LOG HELLO
If you are running Windows, then you can do system("pause >nul");
or system("pause");
. It executes a console command to pause the program until you press a key. >nul
prevents it from saying Press any key to continue...
.
rtrim(lastname)+','+rtrim(firstname) as [Person Name]
from Table
the result will show lastname,firstname as one column header !
You can also customize the card theme globally with ThemeData.cardTheme
:
MaterialApp(
title: 'savvy',
theme: ThemeData(
cardTheme: CardTheme(
shape: RoundedRectangleBorder(
borderRadius: const BorderRadius.all(
Radius.circular(8.0),
),
),
),
// ...
If it's 20 and lower, you can just use the unicode characters ? ? ... ?
It was mentioned in the unset manual's page in 2009:
unset()
does just what its name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first.If you are doing
$whatever = null;
then you are rewriting variable's data. You might get memory freed / shrunk faster, but it may steal CPU cycles from the code that truly needs them sooner, resulting in a longer overall execution time.
(Since 2013, that unset
man page don't include that section anymore)
Note that until php5.3, if you have two objects in circular reference, such as in a parent-child relationship, calling unset() on the parent object will not free the memory used for the parent reference in the child object. (Nor will the memory be freed when the parent object is garbage-collected.) (bug 33595)
The question "difference between unset and = null" details some differences:
unset($a)
also removes $a
from the symbol table; for example:
$a = str_repeat('hello world ', 100);
unset($a);
var_dump($a);
Outputs:
Notice: Undefined variable: a in xxx
NULL
But when
$a = null
is used:
$a = str_repeat('hello world ', 100);
$a = null;
var_dump($a);
Outputs:
NULL
It seems that
$a = null
is a bit faster than itsunset()
counterpart: updating a symbol table entry appears to be faster than removing it.
unset
) variable, an error will be triggered and the value for the variable expression will be null. (Because, what else should PHP do? Every expression needs to result in some value.)Because a label element is not loaded when a script is executed. Swap the label and script elements, and it will work:
<label id="lbltipAddedComment"></label>
<script>
document.getElementById('lbltipAddedComment').innerHTML = 'Your tip has been submitted!';
</script>
(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]+\.[^\s]{2,}|www\.[a-zA-Z0-9]+\.[^\s]{2,})
Will match the following cases
http://www.foufos.gr
https://www.foufos.gr
http://foufos.gr
http://www.foufos.gr/kino
http://werer.gr
www.foufos.gr
www.mp3.com
www.t.co
http://t.co
http://www.t.co
https://www.t.co
www.aa.com
http://aa.com
http://www.aa.com
https://www.aa.com
Will NOT match the following
www.foufos
www.foufos-.gr
www.-foufos.gr
foufos.gr
http://www.foufos
http://foufos
www.mp3#.com
var expression = /(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]+\.[^\s]{2,}|www\.[a-zA-Z0-9]+\.[^\s]{2,})/gi;_x000D_
var regex = new RegExp(expression);_x000D_
_x000D_
var check = [_x000D_
'http://www.foufos.gr',_x000D_
'https://www.foufos.gr',_x000D_
'http://foufos.gr',_x000D_
'http://www.foufos.gr/kino',_x000D_
'http://werer.gr',_x000D_
'www.foufos.gr',_x000D_
'www.mp3.com',_x000D_
'www.t.co',_x000D_
'http://t.co',_x000D_
'http://www.t.co',_x000D_
'https://www.t.co',_x000D_
'www.aa.com',_x000D_
'http://aa.com',_x000D_
'http://www.aa.com',_x000D_
'https://www.aa.com',_x000D_
'www.foufos',_x000D_
'www.foufos-.gr',_x000D_
'www.-foufos.gr',_x000D_
'foufos.gr',_x000D_
'http://www.foufos',_x000D_
'http://foufos',_x000D_
'www.mp3#.com'_x000D_
];_x000D_
_x000D_
check.forEach(function(entry) {_x000D_
if (entry.match(regex)) {_x000D_
$("#output").append( "<div >Success: " + entry + "</div>" );_x000D_
} else {_x000D_
$("#output").append( "<div>Fail: " + entry + "</div>" );_x000D_
}_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div id="output"></div>
_x000D_
This is the HTML only way:
<body>
<a name="top"></a>
foo content
foo bottom of page
<a href="#top">Back to Top</a>
</body>
There are quite a few other alternatives using jquery and jscript though which offer additional effects. It really just depends on what you are looking for.
I use:
used_features =[
"one",
"two",
"three"
]
df['is_duplicated'] = df.duplicated(used_features)
df['is_duplicated'].sum()
which gives count of duplicated rows, and then you can analyse them by a new column. I didn't see such solution here.
cout.fill( '0' );
cout.width( 3 );
cout << value;
I think for best practice you should write IE conditional statement inside the <head>
tag
that inside has a link to your special ie style sheet.
This HAS TO BE after your custom css link so it overrides the latter,
I have a small site so i use the same ie css for all pages.
<link rel="stylesheet" type="text/css" href="index.css" />
<!--[if IE]>
<link rel="stylesheet" type="text/css" href="all-ie-only.css" />
<![endif]-->
this differs from james answer as i think(personal opinion because i work with a designer team and i dont want them to touch my html files and mess up something there) you should never include styles in your html file.
This is sample and best way for showing badge on notification launcher icon.
Add This Class in your application
public class BadgeUtils {
public static void setBadge(Context context, int count) {
setBadgeSamsung(context, count);
setBadgeSony(context, count);
}
public static void clearBadge(Context context) {
setBadgeSamsung(context, 0);
clearBadgeSony(context);
}
private static void setBadgeSamsung(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
intent.putExtra("badge_count", count);
intent.putExtra("badge_count_package_name", context.getPackageName());
intent.putExtra("badge_count_class_name", launcherClassName);
context.sendBroadcast(intent);
}
private static void setBadgeSony(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent();
intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", launcherClassName);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", true);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String.valueOf(count));
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context.getPackageName());
context.sendBroadcast(intent);
}
private static void clearBadgeSony(Context context) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent();
intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", launcherClassName);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", false);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String.valueOf(0));
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context.getPackageName());
context.sendBroadcast(intent);
}
private static String getLauncherClassName(Context context) {
PackageManager pm = context.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
for (ResolveInfo resolveInfo : resolveInfos) {
String pkgName = resolveInfo.activityInfo.applicationInfo.packageName;
if (pkgName.equalsIgnoreCase(context.getPackageName())) {
String className = resolveInfo.activityInfo.name;
return className;
}
}
return null;
}
}
==> MyGcmListenerService.java Use BadgeUtils class when notification comes.
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("Msg");
String Type = data.getString("Type");
Intent intent = new Intent(this, SplashActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.BigTextStyle bigTextStyle= new NotificationCompat.BigTextStyle();
bigTextStyle .setBigContentTitle(getString(R.string.app_name))
.bigText(message);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(getNotificationIcon())
.setContentTitle(getString(R.string.app_name))
.setContentText(message)
.setStyle(bigTextStyle)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
int color = getResources().getColor(R.color.appColor);
notificationBuilder.setColor(color);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int unOpenCount=AppUtill.getPreferenceInt("NOTICOUNT",this);
unOpenCount=unOpenCount+1;
AppUtill.savePreferenceLong("NOTICOUNT",unOpenCount,this);
notificationManager.notify(unOpenCount /* ID of notification */, notificationBuilder.build());
// This is for bladge on home icon
BadgeUtils.setBadge(MyGcmListenerService.this,(int)unOpenCount);
}
private int getNotificationIcon() {
boolean useWhiteIcon = (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP);
return useWhiteIcon ? R.drawable.notification_small_icon : R.drawable.icon_launcher;
}
}
And clear notification from preference and also with badge count
public class SplashActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
AppUtill.savePreferenceLong("NOTICOUNT",0,this);
BadgeUtils.clearBadge(this);
}
}
<uses-permission android:name="com.sonyericsson.home.permission.BROADCAST_BADGE" />
You don't have to specify the size of an array when you instantiate it.
You can still declare the array and instantiate it later. For instance:
string[] myArray;
...
myArray = new string[size];
You can use TTTAttributedLabel, it supports vertical alignment.
@property (nonatomic) TTTAttributedLabel* label;
<...>
//view's or viewController's init method
_label.verticalAlignment = TTTAttributedLabelVerticalAlignmentTop;
Working on Mac I followed the answer of Sean Patrick Floyd placing a settings.xml like above in my user folder /Users/user/.m2/
But this did not help. So I opened a Terminal and did a ls -la on the folder. This was showing
-rw-r--r--@
thus staff and everone can at least read the file. So I wondered if the message isn't wrong and if the real cause is the lack of write permissions. I set the file to:
-rw-r--rw-@
This did it. The message disappeared.
Run below commands:
a) openssl pkcs12 -in Certificates.p12 -out CertificateName.pem -nodes
,
b) openssl pkcs12 -in Certificates.p12 -out pushcert.pem -nodes -clcerts
While numpy arrays and pandas may be preferrable, this function imitates the behavior of zip(*args)
when called as unzip(args)
.
Allows for generators, like the result from zip
in Python 3, to be passed as args
as it iterates through values.
def unzip(items, cls=list, ocls=tuple):
"""Zip function in reverse.
:param items: Zipped-like iterable.
:type items: iterable
:param cls: Container factory. Callable that returns iterable containers,
with a callable append attribute, to store the unzipped items. Defaults
to ``list``.
:type cls: callable, optional
:param ocls: Outer container factory. Callable that returns iterable
containers. with a callable append attribute, to store the inner
containers (see ``cls``). Defaults to ``tuple``.
:type ocls: callable, optional
:returns: Unzipped items in instances returned from ``cls``, in an instance
returned from ``ocls``.
"""
# iter() will return the same iterator passed to it whenever possible.
items = iter(items)
try:
i = next(items)
except StopIteration:
return ocls()
unzipped = ocls(cls([v]) for v in i)
for i in items:
for c, v in zip(unzipped, i):
c.append(v)
return unzipped
To use list cointainers, simply run unzip(zipped)
, as
unzip(zip(["a","b","c"],[1,2,3])) == (["a","b","c"],[1,2,3])
To use deques, or other any container sporting append
, pass a factory function.
from collections import deque
unzip([("a",1),("b",2)], deque, list) == [deque(["a","b"]),deque([1,2])]
(Decorate cls
and/or main_cls
to micro manage container initialization, as briefly shown in the final assert statement above.)
with thanks to Vlad's answer for inspiration; tested & working on IE11, FF49, Opera40, Chrome53
li > a {
height: 100px;
width: 300px;
display: table-cell;
text-align: center; /* H align */
vertical-align: middle;
}
centers in all directions nicely even with text wrapping, line breaks, images, etc.
I got fancy and made a snippet
li > a {_x000D_
height: 100px;_x000D_
width: 300px;_x000D_
display: table-cell;_x000D_
/*H align*/_x000D_
text-align: center;_x000D_
/*V align*/_x000D_
vertical-align: middle;_x000D_
}_x000D_
a.thin {_x000D_
width: 40px;_x000D_
}_x000D_
a.break {_x000D_
/*force text wrap, otherwise `width` is treated as `min-width` when encountering a long word*/_x000D_
word-break: break-all;_x000D_
}_x000D_
/*more css so you can see this easier*/_x000D_
_x000D_
li {_x000D_
display: inline-block;_x000D_
}_x000D_
li > a {_x000D_
padding: 10px;_x000D_
margin: 30px;_x000D_
background: aliceblue;_x000D_
}_x000D_
li > a:hover {_x000D_
padding: 10px;_x000D_
margin: 30px;_x000D_
background: aqua;_x000D_
}
_x000D_
<li><a href="">My menu item</a>_x000D_
</li>_x000D_
<li><a href="">My menu <br> break item</a>_x000D_
</li>_x000D_
<li><a href="">My menu item that is really long and unweildly</a>_x000D_
</li>_x000D_
<li><a href="" class="thin">Good<br>Menu<br>Item</a>_x000D_
</li>_x000D_
<li><a href="" class="thin">Fantastically Menu Item</a>_x000D_
</li>_x000D_
<li><a href="" class="thin break">Fantastically Menu Item</a>_x000D_
</li>_x000D_
<br>_x000D_
note: if using "break-all" need to also use "<br>" or suffer the consequences
_x000D_
Just give you some idea how other databases solve this problem. DolphinDB
also has built-in support for pivoting and the sql looks much more intuitive and neat. It is as simple as specifying the key column (Store
), pivoting column (Week
), and the calculated metric (sum(xCount)
).
//prepare a 10-million-row table
n=10000000
t=table(rand(100, n) + 1 as Store, rand(54, n) + 1 as Week, rand(100, n) + 1 as xCount)
//use pivot clause to generate a pivoted table pivot_t
pivot_t = select sum(xCount) from t pivot by Store, Week
DolphinDB is a columnar high performance database. The calculation in the demo costs as low as 546 ms on a dell xps laptop (i7 cpu). To get more details, please refer to online DolphinDB manual https://www.dolphindb.com/help/index.html?pivotby.html
You cannot update UI from any other thread other than the UI thread. Use this to update thread on the UI thread.
private void AggiornaContatore()
{
if(this.lblCounter.InvokeRequired)
{
this.lblCounter.BeginInvoke((MethodInvoker) delegate() {this.lblCounter.Text = this.index.ToString(); ;});
}
else
{
this.lblCounter.Text = this.index.ToString(); ;
}
}
Please go through this chapter and more from this book to get a clear picture about threading:
http://www.albahari.com/threading/part2.aspx#_Rich_Client_Applications
You can do either:
$("h1").css("background-color", "yellow");
Or:
$("h1").css({backgroundColor: "yellow"});
So wait, this is just a list-within-a-list?
The easiest way is probably just to use nested for loops:
>>> a = [[1, 3, 4], [2, 4, 4], [3, 4, 5]]
>>> a
[[1, 3, 4], [2, 4, 4], [3, 4, 5]]
>>> for list in a:
... for number in list:
... print number
...
1
3
4
2
4
4
3
4
5
Or is it something more complicated than that? Arbitrary nesting or something? Let us know if there's something else as well.
Also, for performance reasons, you might want to look at using list comprehensions to do this:
http://docs.python.org/tutorial/datastructures.html#nested-list-comprehensions
Try this code:
CONVERT(varchar(15), date_started, 103)
My take on this built from a number of resources. https://stackoverflow.com/a/7035036 https://stackoverflow.com/a/1470182/360211
using System;
using System.Drawing;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Security;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media.Imaging;
using Microsoft.Win32.SafeHandles;
namespace WpfHelpers
{
public static class BitmapToBitmapSource
{
public static BitmapSource ToBitmapSource(this Bitmap source)
{
using (var handle = new SafeHBitmapHandle(source))
{
return Imaging.CreateBitmapSourceFromHBitmap(handle.DangerousGetHandle(),
IntPtr.Zero, Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
}
}
[DllImport("gdi32")]
private static extern int DeleteObject(IntPtr o);
private sealed class SafeHBitmapHandle : SafeHandleZeroOrMinusOneIsInvalid
{
[SecurityCritical]
public SafeHBitmapHandle(Bitmap bitmap)
: base(true)
{
SetHandle(bitmap.GetHbitmap());
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
protected override bool ReleaseHandle()
{
return DeleteObject(handle) > 0;
}
}
}
}
In SQL server you would use TOP together with ROW_NUMBER()
ViewBag
is of type dynamic
but, is internally an System.Dynamic.ExpandoObject()
It is declared like this:
dynamic ViewBag = new System.Dynamic.ExpandoObject();
which is why you can do :
ViewBag.Foo = "Bar";
A Sample Expander Object Code:
public class ExpanderObject : DynamicObject, IDynamicMetaObjectProvider
{
public Dictionary<string, object> objectDictionary;
public ExpanderObject()
{
objectDictionary = new Dictionary<string, object>();
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
object val;
if (objectDictionary.TryGetValue(binder.Name, out val))
{
result = val;
return true;
}
result = null;
return false;
}
public override bool TrySetMember(SetMemberBinder binder, object value)
{
try
{
objectDictionary[binder.Name] = value;
return true;
}
catch (Exception ex)
{
return false;
}
}
}
Redux itself is a pretty verbose library, and for such stuff you would have to use something like Redux-thunk, which will give a dispatch
function, so you will be able to dispatch closing of the notification after several seconds.
I have created a library to address issues like verbosity and composability, and your example will look like the following:
import { createTile, createSyncTile } from 'redux-tiles';
import { sleep } from 'delounce';
const notifications = createSyncTile({
type: ['ui', 'notifications'],
fn: ({ params }) => params.data,
// to have only one tile for all notifications
nesting: ({ type }) => [type],
});
const notificationsManager = createTile({
type: ['ui', 'notificationManager'],
fn: ({ params, dispatch, actions }) => {
dispatch(actions.ui.notifications({ type: params.type, data: params.data }));
await sleep(params.timeout || 5000);
dispatch(actions.ui.notifications({ type: params.type, data: null }));
return { closed: true };
},
nesting: ({ type }) => [type],
});
So we compose sync actions for showing notifications inside async action, which can request some info the background, or check later whether the notification was closed manually.
In Bootstrap 4 you can use classes like mt-5
, mb-5
, my-5
, mx-5
(y for both top and bottom, x for both left and right).
According to their site:
The classes are named using the format {property}{sides}-{size} for xs and {property}{sides}-{breakpoint}-{size} for sm, md, lg, and xl.
my issue:
# npm install -g canvas
dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.64.dylib
Referenced from: /usr/local/opt/node@8/bin/node
Reason: image not found
for now 20210118, after many try:
...
brew reinstall https://raw.githubusercontent.com/Homebrew/homebrew-core/master/Formula/icu4c.rb
brew upgrade npm
brew install node
brew uninstall --ignore-dependencies node@8 icu4c
brew install icu4c
...
Final worked solution is:
brew reinstall npm
Another vi command that'll do: :%s/.$//
This removes the last character of each line in the file. The drawback to this search and replace command is that it doesn't care what the last character is, so be careful not to call it twice.
Should be
private ArrayList<String[]> action = new ArrayList<String[]>();
action.add(new String[2]);
...
You can't specify the size of the array within the generic parameter, only add arrays of specific size to the list later. This also means that the compiler can't guarantee that all sub-arrays be of the same size, it must be ensured by you.
A better solution might be to encapsulate this within a class, where you can ensure the uniform size of the arrays as a type invariant.
It is a common misconception that time (a measurable 4th dimension) is different over the world. Timestamp as a moment in time is unique. Date however is influenced how we "see" time but actually it is "time of day".
An example: two people look at the clock at the same moment. The timestamp is the same, right? But one of them is in London and sees 12:00 noon (GMT, timezone offset is 0), and the other is in Belgrade and sees 14:00 (CET, Central Europe, daylight saving now, offset is +2).
Their perception is different but the moment is the same.
You can find more details in this answer.
OK, it's not a duplicate of this question but it is pointless since you are confusing the terms "Timestamp = moment in time (objective)" and "Date[Time] = time of day (subjective)".
Let's look at your original question code broken down like this:
// Get the "original" value from database.
Timestamp momentFromDB = rs.getTimestamp("anytimestampcolumn");
// Turn it into a Joda DateTime with time zone.
DateTime dt = new DateTime(momentFromDB, DateTimeZone.forID("anytimezone"));
// And then turn it back into a timestamp but "with time zone".
Timestamp ts = new Timestamp(dt.getMillis());
I haven't run this code but I am certain it will print true
and the same number of milliseconds each time:
System.out.println("momentFromDB == dt : " + (momentFromDB.getTime() == dt.getTimeInMillis());
System.out.println("momentFromDB == ts : " + (momentFromDB.getTime() == ts.getTime()));
System.out.println("dt == ts : " + (dt.getTimeInMillis() == ts.getTime()));
System.out.println("momentFromDB [ms] : " + momentFromDB.getTime());
System.out.println("ts [ms] : " + ts.getTime());
System.out.println("dt [ms] : " + dt.getTimeInMillis());
But as you said yourself printing them out as strings will result in "different" time because DateTime
applies the time zone. That's why "time" is stored and transferred as Timestamp
objects (which basically wraps a long
) and displayed or entered as Date[Time]
.
In your own answer you are artificially adding an offset and creating a "wrong" time.
If you use that timestamp to create another DateTime
and print it out it will be offset twice.
// Turn it back into a Joda DateTime with time zone.
DateTime dt = new DateTime(ts, DateTimeZone.forID("anytimezone"));
P.S. If you have the time go through the very complex Joda Time source code to see how it holds the time (millis) and how it prints it.
import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.junit.Before;
import org.junit.Test;
public class WorldTimeTest {
private static final int MILLIS_IN_HOUR = 1000 * 60 * 60;
private static final String ISO_FORMAT_NO_TZ = "yyyy-MM-dd'T'HH:mm:ss.SSS";
private static final String ISO_FORMAT_WITH_TZ = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
private TimeZone londonTimeZone;
private TimeZone newYorkTimeZone;
private TimeZone sydneyTimeZone;
private long nowInMillis;
private Date now;
public static SimpleDateFormat createDateFormat(String pattern, TimeZone timeZone) throws Exception {
SimpleDateFormat result = new SimpleDateFormat(pattern);
// Must explicitly set the time zone with "setCalendar()".
result.setCalendar(Calendar.getInstance(timeZone));
return result;
}
public static SimpleDateFormat createDateFormat(String pattern) throws Exception {
return createDateFormat(pattern, TimeZone.getDefault());
}
public static SimpleDateFormat createDateFormat() throws Exception {
return createDateFormat(ISO_FORMAT_WITH_TZ, TimeZone.getDefault());
}
public void printSystemInfo() throws Exception {
final String[] propertyNames = {
"java.runtime.name", "java.runtime.version", "java.vm.name", "java.vm.version",
"os.name", "os.version", "os.arch",
"user.language", "user.country", "user.script", "user.variant",
"user.language.format", "user.country.format", "user.script.format",
"user.timezone" };
System.out.println();
System.out.println("System Information:");
for (String name : propertyNames) {
if (name == null || name.length() == 0) {
continue;
}
String value = System.getProperty(name);
if (value != null && value.length() > 0) {
System.out.println(" " + name + " = " + value);
}
}
final TimeZone defaultTZ = TimeZone.getDefault();
final int defaultOffset = defaultTZ.getOffset(nowInMillis) / MILLIS_IN_HOUR;
final int userOffset = TimeZone.getTimeZone(System
.getProperty("user.timezone")).getOffset(nowInMillis) / MILLIS_IN_HOUR;
final Locale defaultLocale = Locale.getDefault();
System.out.println(" default.timezone-offset (hours) = " + userOffset);
System.out.println(" default.timezone = " + defaultTZ.getDisplayName());
System.out.println(" default.timezone.id = " + defaultTZ.getID());
System.out.println(" default.timezone-offset (hours) = " + defaultOffset);
System.out.println(" default.locale = "
+ defaultLocale.getLanguage() + "_" + defaultLocale.getCountry()
+ " (" + defaultLocale.getDisplayLanguage()
+ "," + defaultLocale.getDisplayCountry() + ")");
System.out.println(" now = " + nowInMillis + " [ms] or "
+ createDateFormat().format(now));
System.out.println();
}
@Before
public void setUp() throws Exception {
// Remember this moment.
now = new Date();
nowInMillis = now.getTime(); // == System.currentTimeMillis();
// Print out some system information.
printSystemInfo();
// "Europe/London" time zone is DST aware, we'll use fixed offset.
londonTimeZone = TimeZone.getTimeZone("GMT");
// The same applies to "America/New York" time zone ...
newYorkTimeZone = TimeZone.getTimeZone("GMT-5");
// ... and for the "Australia/Sydney" time zone.
sydneyTimeZone = TimeZone.getTimeZone("GMT+10");
}
@Test
public void testDateFormatting() throws Exception {
int londonOffset = londonTimeZone.getOffset(nowInMillis) / MILLIS_IN_HOUR; // in hours
Calendar londonCalendar = Calendar.getInstance(londonTimeZone);
londonCalendar.setTime(now);
int newYorkOffset = newYorkTimeZone.getOffset(nowInMillis) / MILLIS_IN_HOUR;
Calendar newYorkCalendar = Calendar.getInstance(newYorkTimeZone);
newYorkCalendar.setTime(now);
int sydneyOffset = sydneyTimeZone.getOffset(nowInMillis) / MILLIS_IN_HOUR;
Calendar sydneyCalendar = Calendar.getInstance(sydneyTimeZone);
sydneyCalendar.setTime(now);
// Check each time zone offset.
assertThat(londonOffset, equalTo(0));
assertThat(newYorkOffset, equalTo(-5));
assertThat(sydneyOffset, equalTo(10));
// Check that calendars are not equals (due to time zone difference).
assertThat(londonCalendar, not(equalTo(newYorkCalendar)));
assertThat(londonCalendar, not(equalTo(sydneyCalendar)));
// Check if they all point to the same moment in time, in milliseconds.
assertThat(londonCalendar.getTimeInMillis(), equalTo(nowInMillis));
assertThat(newYorkCalendar.getTimeInMillis(), equalTo(nowInMillis));
assertThat(sydneyCalendar.getTimeInMillis(), equalTo(nowInMillis));
// Check if they all point to the same moment in time, as Date.
assertThat(londonCalendar.getTime(), equalTo(now));
assertThat(newYorkCalendar.getTime(), equalTo(now));
assertThat(sydneyCalendar.getTime(), equalTo(now));
// Check if hours are all different (skip local time because
// this test could be executed in those exact time zones).
assertThat(newYorkCalendar.get(Calendar.HOUR_OF_DAY),
not(equalTo(londonCalendar.get(Calendar.HOUR_OF_DAY))));
assertThat(sydneyCalendar.get(Calendar.HOUR_OF_DAY),
not(equalTo(londonCalendar.get(Calendar.HOUR_OF_DAY))));
// Display London time in multiple forms.
SimpleDateFormat dfLondonNoTZ = createDateFormat(ISO_FORMAT_NO_TZ, londonTimeZone);
SimpleDateFormat dfLondonWithTZ = createDateFormat(ISO_FORMAT_WITH_TZ, londonTimeZone);
System.out.println("London (" + londonTimeZone.getDisplayName(false, TimeZone.SHORT)
+ ", " + londonOffset + "):");
System.out.println(" time (ISO format w/o TZ) = "
+ dfLondonNoTZ.format(londonCalendar.getTime()));
System.out.println(" time (ISO format w/ TZ) = "
+ dfLondonWithTZ.format(londonCalendar.getTime()));
System.out.println(" time (default format) = "
+ londonCalendar.getTime() + " / " + londonCalendar.toString());
// Using system default time zone.
System.out.println(" time (default TZ) = "
+ createDateFormat(ISO_FORMAT_NO_TZ).format(londonCalendar.getTime())
+ " / " + createDateFormat().format(londonCalendar.getTime()));
// Display New York time in multiple forms.
SimpleDateFormat dfNewYorkNoTZ = createDateFormat(ISO_FORMAT_NO_TZ, newYorkTimeZone);
SimpleDateFormat dfNewYorkWithTZ = createDateFormat(ISO_FORMAT_WITH_TZ, newYorkTimeZone);
System.out.println("New York (" + newYorkTimeZone.getDisplayName(false, TimeZone.SHORT)
+ ", " + newYorkOffset + "):");
System.out.println(" time (ISO format w/o TZ) = "
+ dfNewYorkNoTZ.format(newYorkCalendar.getTime()));
System.out.println(" time (ISO format w/ TZ) = "
+ dfNewYorkWithTZ.format(newYorkCalendar.getTime()));
System.out.println(" time (default format) = "
+ newYorkCalendar.getTime() + " / " + newYorkCalendar.toString());
// Using system default time zone.
System.out.println(" time (default TZ) = "
+ createDateFormat(ISO_FORMAT_NO_TZ).format(newYorkCalendar.getTime())
+ " / " + createDateFormat().format(newYorkCalendar.getTime()));
// Display Sydney time in multiple forms.
SimpleDateFormat dfSydneyNoTZ = createDateFormat(ISO_FORMAT_NO_TZ, sydneyTimeZone);
SimpleDateFormat dfSydneyWithTZ = createDateFormat(ISO_FORMAT_WITH_TZ, sydneyTimeZone);
System.out.println("Sydney (" + sydneyTimeZone.getDisplayName(false, TimeZone.SHORT)
+ ", " + sydneyOffset + "):");
System.out.println(" time (ISO format w/o TZ) = "
+ dfSydneyNoTZ.format(sydneyCalendar.getTime()));
System.out.println(" time (ISO format w/ TZ) = "
+ dfSydneyWithTZ.format(sydneyCalendar.getTime()));
System.out.println(" time (default format) = "
+ sydneyCalendar.getTime() + " / " + sydneyCalendar.toString());
// Using system default time zone.
System.out.println(" time (default TZ) = "
+ createDateFormat(ISO_FORMAT_NO_TZ).format(sydneyCalendar.getTime())
+ " / " + createDateFormat().format(sydneyCalendar.getTime()));
}
@Test
public void testDateParsing() throws Exception {
// Create date parsers that look for time zone information in a date-time string.
final SimpleDateFormat londonFormatTZ = createDateFormat(ISO_FORMAT_WITH_TZ, londonTimeZone);
final SimpleDateFormat newYorkFormatTZ = createDateFormat(ISO_FORMAT_WITH_TZ, newYorkTimeZone);
final SimpleDateFormat sydneyFormatTZ = createDateFormat(ISO_FORMAT_WITH_TZ, sydneyTimeZone);
// Create date parsers that ignore time zone information in a date-time string.
final SimpleDateFormat londonFormatLocal = createDateFormat(ISO_FORMAT_NO_TZ, londonTimeZone);
final SimpleDateFormat newYorkFormatLocal = createDateFormat(ISO_FORMAT_NO_TZ, newYorkTimeZone);
final SimpleDateFormat sydneyFormatLocal = createDateFormat(ISO_FORMAT_NO_TZ, sydneyTimeZone);
// We are looking for the moment this millenium started, the famous Y2K,
// when at midnight everyone welcomed the New Year 2000, i.e. 2000-01-01 00:00:00.
// Which of these is the right one?
// a) "2000-01-01T00:00:00.000-00:00"
// b) "2000-01-01T00:00:00.000-05:00"
// c) "2000-01-01T00:00:00.000+10:00"
// None of them? All of them?
// For those who guessed it - yes, it is a trick question because we didn't specify
// the "where" part, or what kind of time (local/global) we are looking for.
// The first (a) is the local Y2K moment in London, which is at the same time global.
// The second (b) is the local Y2K moment in New York, but London is already celebrating for 5 hours.
// The third (c) is the local Y2K moment in Sydney, and they started celebrating 15 hours before New York did.
// The point here is that each answer is correct because everyone thinks of that moment in terms of "celebration at midnight".
// The key word here is "midnight"! That moment is actually a "time of day" moment illustrating our perception of time based on the movement of our Sun.
// These are global Y2K moments, i.e. the same moment all over the world, UTC/GMT midnight.
final String MIDNIGHT_GLOBAL = "2000-01-01T00:00:00.000-00:00";
final Date milleniumInLondon = londonFormatTZ.parse(MIDNIGHT_GLOBAL);
final Date milleniumInNewYork = newYorkFormatTZ.parse(MIDNIGHT_GLOBAL);
final Date milleniumInSydney = sydneyFormatTZ.parse(MIDNIGHT_GLOBAL);
// Check if they all point to the same moment in time.
// And that parser ignores its own configured time zone and uses the information from the date-time string.
assertThat(milleniumInNewYork, equalTo(milleniumInLondon));
assertThat(milleniumInSydney, equalTo(milleniumInLondon));
// These are all local Y2K moments, a.k.a. midnight at each location on Earth, with time zone information.
final String MIDNIGHT_LONDON = "2000-01-01T00:00:00.000-00:00";
final String MIDNIGHT_NEW_YORK = "2000-01-01T00:00:00.000-05:00";
final String MIDNIGHT_SYDNEY = "2000-01-01T00:00:00.000+10:00";
final Date midnightInLondonTZ = londonFormatLocal.parse(MIDNIGHT_LONDON);
final Date midnightInNewYorkTZ = newYorkFormatLocal.parse(MIDNIGHT_NEW_YORK);
final Date midnightInSydneyTZ = sydneyFormatLocal.parse(MIDNIGHT_SYDNEY);
// Check if they all point to the same moment in time.
assertThat(midnightInNewYorkTZ, not(equalTo(midnightInLondonTZ)));
assertThat(midnightInSydneyTZ, not(equalTo(midnightInLondonTZ)));
// Check if the time zone offset is correct.
assertThat(midnightInLondonTZ.getTime() - midnightInNewYorkTZ.getTime(),
equalTo((long) newYorkTimeZone.getOffset(milleniumInLondon.getTime())));
assertThat(midnightInLondonTZ.getTime() - midnightInSydneyTZ.getTime(),
equalTo((long) sydneyTimeZone.getOffset(milleniumInLondon.getTime())));
// These are also local Y2K moments, just withouth the time zone information.
final String MIDNIGHT_ANYWHERE = "2000-01-01T00:00:00.000";
final Date midnightInLondon = londonFormatLocal.parse(MIDNIGHT_ANYWHERE);
final Date midnightInNewYork = newYorkFormatLocal.parse(MIDNIGHT_ANYWHERE);
final Date midnightInSydney = sydneyFormatLocal.parse(MIDNIGHT_ANYWHERE);
// Check if these are the same as the local moments with time zone information.
assertThat(midnightInLondon, equalTo(midnightInLondonTZ));
assertThat(midnightInNewYork, equalTo(midnightInNewYorkTZ));
assertThat(midnightInSydney, equalTo(midnightInSydneyTZ));
// Check if they all point to the same moment in time.
assertThat(midnightInNewYork, not(equalTo(midnightInLondon)));
assertThat(midnightInSydney, not(equalTo(midnightInLondon)));
// Check if the time zone offset is correct.
assertThat(midnightInLondon.getTime() - midnightInNewYork.getTime(),
equalTo((long) newYorkTimeZone.getOffset(milleniumInLondon.getTime())));
assertThat(midnightInLondon.getTime() - midnightInSydney.getTime(),
equalTo((long) sydneyTimeZone.getOffset(milleniumInLondon.getTime())));
// Final check - if Y2K moment is in London ..
final String Y2K_LONDON = "2000-01-01T00:00:00.000Z";
// .. New York local time would be still 5 hours in 1999 ..
final String Y2K_NEW_YORK = "1999-12-31T19:00:00.000-05:00";
// .. and Sydney local time would be 10 hours in 2000.
final String Y2K_SYDNEY = "2000-01-01T10:00:00.000+10:00";
final String londonTime = londonFormatTZ.format(milleniumInLondon);
final String newYorkTime = newYorkFormatTZ.format(milleniumInLondon);
final String sydneyTime = sydneyFormatTZ.format(milleniumInLondon);
// WHat do you think, will the test pass?
assertThat(londonTime, equalTo(Y2K_LONDON));
assertThat(newYorkTime, equalTo(Y2K_NEW_YORK));
assertThat(sydneyTime, equalTo(Y2K_SYDNEY));
}
}
There is a problem with all those solutions floating around using multipliers. Both kkyy and Christoph's solutions are wrong unfortunately.
Please test your code for number 551.175 with 2 decimal places - it will round to 551.17 while it should be 551.18 ! But if you test for ex. 451.175 it will be ok - 451.18. So it's difficult to spot this error at a first glance.
The problem is with multiplying: try 551.175 * 100 = 55117.49999999999 (ups!)
So my idea is to treat it with toFixed() before using Math.round();
function roundFix(number, precision)
{
var multi = Math.pow(10, precision);
return Math.round( (number * multi).toFixed(precision + 1) ) / multi;
}
Kibana 4 logs to stdout
by default. Here is an excerpt of the config/kibana.yml
defaults:
# Enables you specify a file where Kibana stores log output.
# logging.dest: stdout
So when invoking it with service
, use the log capture method of that service. For example, on a Linux distribution using Systemd / systemctl (e.g. RHEL 7+):
journalctl -u kibana.service
One way may be to modify init scripts to use the --log-file
option (if it still exists), but I think the proper solution is to properly configure your instance YAML file. For example, add this to your config/kibana.yml
:
logging.dest: /var/log/kibana.log
Note that the Kibana process must be able to write to the file you specify, or the process will die without information (it can be quite confusing).
As for the --log-file
option, I think this is reserved for CLI operations, rather than automation.
In bootstrap you can use .text-center
to align center. also add .row
and .col-md-*
to your code.
align=
is deprecated,
Added .col-xs-*
for demo
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="footer">
<div class="container">
<div class="row">
<div class="col-xs-4">
<p>Hello there</p>
</div>
<div class="col-xs-4 text-center">
<a href="#" class="btn btn-warning" onclick="changeLook()">Re</a>
<a href="#" class="btn btn-warning" onclick="changeBack()">Rs</a>
</div>
<div class="col-xs-4 text-right">
<a href="#"><i class="fa fa-facebook-square fa-2x"></i></a>
<a href="#"><i class="fa fa-twitter fa-2x"></i></a>
<a href="#"><i class="fa fa-google-plus fa-2x"></i></a>
</div>
</div>
</div>
</div>
_x000D_
For those who are reading this and want to use the new version of bootstrap (beta version), you can do the above in a simpler way, using Boostrap Flexbox utilities classes
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<div class="container footer">
<div class="d-flex justify-content-between">
<div class="p-1">
<p>Hello there</p>
</div>
<div class="p-1">
<a href="#" class="btn btn-warning" onclick="changeLook()">Re</a>
<a href="#" class="btn btn-warning" onclick="changeBack()">Rs</a>
</div>
<div class="p-1">
<a href="#"><i class="fa fa-facebook-square fa-2x"></i></a>
<a href="#"><i class="fa fa-twitter fa-2x"></i></a>
<a href="#"><i class="fa fa-google-plus fa-2x"></i></a>
</div>
</div>
</div>
_x000D_
The first case will fail when JS is off. It's also a little bit slower since JS must be parsed first (DOM must be loaded). However JS is safer since the destination doesn't know the referer and your redirect might be tracked (referers aren't reliable in general yet this is something).
You can also use meta refresh tag. It also requires DOM to be loaded.
How are you generating your data?
See how the output shows that your data is of 'object' type? the groupby operations specifically check whether each column is a numeric dtype first.
In [31]: data
Out[31]:
<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 2557 entries, 2004-01-01 00:00:00 to 2010-12-31 00:00:00
Freq: <1 DateOffset>
Columns: 360 entries, -89.75 to 89.75
dtypes: object(360)
look ?
Did you initialize an empty DataFrame first and then filled it? If so that's probably why it changed with the new version as before 0.9 empty DataFrames were initialized to float type but now they are of object type. If so you can change the initialization to DataFrame(dtype=float)
.
You can also call frame.astype(float)
Well, not sure if this is what You mean but Posgres normally support "dummy" ETL syntax. I created one empty column in table and then needed to fill it by calculated records depending on values in row.
UPDATE table01
SET column03 = column01*column02; /*e.g. for multiplication of 2 values*/
Use: LOGGER.log(Level.INFO, "Got an exception.", e);
or LOGGER.info("Got an exception. " + e.getMessage())
;
As far as I understand getters and setters are to improve encapsulation. There is nothing complex about them in C#.
You define a property of on object like this:
int m_colorValue = 0;
public int Color
{
set { m_colorValue = value; }
get { return m_colorValue; }
}
This is the most simple use. It basically sets an internal variable or retrieves its value. You use a Property like this:
someObject.Color = 222; // sets a color 222
int color = someObject.Color // gets the color of the object
You could eventually do some processing on the value in the setters or getters like this:
public int Color
{
set { m_colorValue = value + 5; }
get { return m_colorValue - 30; }
}
if you skip set or get, your property will be read or write only. That's how I understand the stuff.
See: How to: Attach a Database File to SQL Server Express
Login to the database via sqlcmd:
sqlcmd -S Server\Instance
And then issue the commands:
USE [master]
GO
CREATE DATABASE [database_name] ON
( FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\Data\<database name>.mdf' ),
( FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\Data\<database name>.ldf' )
FOR ATTACH ;
GO
What you're using here are not arrays, but lists (of lists).
If you want multidimensional arrays in Python, you can use Numpy arrays. You'd need to know the shape in advance.
For example:
import numpy as np
arr = np.empty((3, 2), dtype=object)
arr[0, 1] = 'abc'
select database on the left side. Then on the right-central top you can find Operations. In that go for remove database (DROP). That's all.
Use count(d.ertek)
or count(d.id)
instead of count(d)
. This can be happen when you have composite primary key at your entity.
This has been really helpful. Here is my implementation for any given table:
def sql_replace(self, tableobject, dictargs):
#missing check of table object is valid
primarykeys = [key.name for key in inspect(tableobject).primary_key]
filterargs = []
for primkeys in primarykeys:
if dictargs[primkeys] is not None:
filterargs.append(getattr(db.RT_eqmtvsdata, primkeys) == dictargs[primkeys])
else:
return
query = select([db.RT_eqmtvsdata]).where(and_(*filterargs))
if self.r_ExecuteAndErrorChk2(query)[primarykeys[0]] is not None:
# update
filter = and_(*filterargs)
query = tableobject.__table__.update().values(dictargs).where(filter)
return self.w_ExecuteAndErrorChk2(query)
else:
query = tableobject.__table__.insert().values(dictargs)
return self.w_ExecuteAndErrorChk2(query)
# example usage
inrow = {'eqmtvs_id': eqmtvsid, 'datetime': dtime, 'param_id': paramid}
self.sql_replace(tableobject=db.RT_eqmtvsdata, dictargs=inrow)
Merge replication. You can create the subscriber (2008) from the distributor (2008). After the database has fully synchronized, drop the subscription and the publication.
Simply add this to your pom.xml:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.21</version>
</dependency>
You do not have to install something.
parseInt(req.params.year, 10);
should work properly.
console.log(typeof parseInt(req.params.year)); // returns 'number'
What is your output, if you use parseInt? is it still a string?
It took me a while, but here's how I made it dynamic. It doesn't depend on a sorted table.
First I started with a column of state names (Column A) and a column of aircraft in each state (Column B). (Row 1 is a header row).
Finding the cell that contains the number of aircraft was:
=MATCH(MAX($B$2:$B$54),$B$2:$B$54,0)+MIN(ROW($B$2:$B$54))-1
I put that into a cell and then gave that cell a name, "StateRow" Then using the tips from above, I wound up with this:
=INDIRECT(ADDRESS(StateRow,1))
This returns the name of the state from the dynamic value in row "StateRow", column 1
Now, as the values in the count column change over time as more data is entered, I always know which state has the most aircraft.
$ which java
should give you something like
/usr/bin/java
In Lollipop (21), you can use Intent.EXTRA_REPLACEMENT_EXTRAS
to override the intent for Facebook specifically (and specify a link only)
https://developer.android.com/reference/android/content/Intent.html#EXTRA_REPLACEMENT_EXTRAS
private void doShareLink(String text, String link) {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
Intent chooserIntent = Intent.createChooser(shareIntent, getString(R.string.share_via));
// for 21+, we can use EXTRA_REPLACEMENT_EXTRAS to support the specific case of Facebook
// (only supports a link)
// >=21: facebook=link, other=text+link
// <=20: all=link
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
shareIntent.putExtra(Intent.EXTRA_TEXT, text + " " + link);
Bundle facebookBundle = new Bundle();
facebookBundle.putString(Intent.EXTRA_TEXT, link);
Bundle replacement = new Bundle();
replacement.putBundle("com.facebook.katana", facebookBundle);
chooserIntent.putExtra(Intent.EXTRA_REPLACEMENT_EXTRAS, replacement);
} else {
shareIntent.putExtra(Intent.EXTRA_TEXT, link);
}
chooserIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(chooserIntent);
}
You can embed all dlls in you main dll. See: Embedding DLLs in a compiled executable
Recently came across this feature in one of the visual studio code tutorial in www.lynda.com
Press Ctrl + K followed by M, it will open the "Select Language Mode" ( or click on the right hand bottom corner that says HTML before that smiley ), type markdown and press enter
Now Press Ctrl + K followed by V, it will open your html in a near by tab.
Tadaaa !!!
Now emmet commands were not working in this mode in my html file, so I went back to the original state ( note - html tag tellisense were working perfectly )
To go to original state - Press Ctrl + K followed by M, select auto-detect. emmet commands started to work. If you are happy with html only viewer, then there is no need for you to come back to the original state.
Wonder why vscode is not having html viewer option by default, when it is able to dispaly the html file in the markdown mode.
Anyway it is cool. Happy vscoding :)
Yes, I now made think for me. And it works fine!!!
if($("div:contains('CONGRATULATIONS')").length)
{
$('#SignupForm').hide(500);
}
(This is for windows OS but concept can be applied to other OS)
Running command node -v
will be able to confirm if it is installed, however it will not be able to confirm if it is NOT installed. (Executable may not be on your PATH)
Two ways you can check if it is actually installed:
C:\Program Files\nodejs\
or
System Settings -> Add or Remove Programs
and filter by node
, it should show you if you have it installed. For me, it shows as title:"Node.js" and description "Node.js Foundation", with no version specified. Install size is 52.6MBIf you don't have it installed, get it from here https://nodejs.org/en/download/
To generate a number between 10 to 20 inclusive, you can use java.util.Random
int myNumber = new Random().nextInt(11) + 10
// acos(0.0) will return value of pi/2, inverse of cos(0) is pi/2
double pi = 2 * acos(0.0);
int n; // upto 6 digit
scanf("%d",&n); //precision with which you want the value of pi
printf("%.*lf\n",n,pi); // * will get replaced by n which is the required precision
I understand the need for packages in certain situations, but the base language is so elegant and so proven (and debugged and optimized).
Why not:
dt <- as.Date("2014-03-16")
dt2 <- as.POSIXlt(dt)
dt2$yday
[1] 74
And then your choice whether the first week of the year is zero (as in indexing in C) or 1 (as in indexing in R).
No packages to learn, update, worry about bugs in.
The following function returns binary representation of given unsigned integer using pointer arithmetic without leading zeros:
const char* toBinaryString(unsigned long num)
{
static char buffer[CHAR_BIT*sizeof(num)+1];
char* pBuffer = &buffer[sizeof(buffer)-1];
do *--pBuffer = '0' + (num & 1);
while (num >>= 1);
return pBuffer;
}
Note that there is no need to explicity set NUL
terminator, because buffer
repesents an object with static storage duration, that is already filled with all-zeros.
This can be easily adapted to unsigned long long
(or another unsigned integer) by simply modifing type of num
formal parameter.
The CHAR_BIT
requires <limits.h>
to be included.
Here is an example usage:
int main(void)
{
printf(">>>%20s<<<\n", toBinaryString(1));
printf(">>>%-20s<<<\n", toBinaryString(254));
return 0;
}
with its desired output as:
>>> 1<<<
>>>11111110 <<<
Wow!!! 9 years of question but I've just come across a series of internal article on Windows Command Line history and I think some part of it might be relevant Windows side of the question:
For those who care about such things: Many have asked whether Windows is written in C or C++. The answer is that - despite NT's Object-Based design - like most OS', Windows is almost entirely written in 'C'. Why? C++ introduces a cost in terms of memory footprint, and code execution overhead. Even today, the hidden costs of code written in C++ can be surprising, but back in the late 1990's, when memory cost ~$60/MB (yes … $60 per MEGABYTE!), the hidden memory cost of vtables etc. was significant. In addition, the cost of virtual-method call indirection and object-dereferencing could result in very significant performance & scale penalties for C++ code at that time. While one still needs to be careful, the performance overhead of modern C++ on modern computers is much less of a concern, and is often an acceptable trade-off considering its security, readability, and maintainability benefits ... which is why we're steadily upgrading the Console’s code to modern C++.
active directory is the directory service database to store the organizational based data,policy,authentication etc whereas ldap is the protocol used to talk to the directory service database that is ad or adam.
I'm using this since the begin and it always work. =)
System.setProperty("webdriver.chrome.driver", "C:\\pathto\\my\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("http://www.google.com");
Use the std::getline()
from <string>
.
istream & getline(istream & is,std::string& str)
So, for your case it would be:
std::getline(read,x);
If you are newbie, welcome to Symfony2, an open-source project so if you want to learn a lot, you can open the source !
From "Form.php" :
getData() getNormData() getViewData()
You can find more details in this file.
The proper way to install an MSI silently is via the msiexec.exe command line
as follows:
msiexec.exe /i c:\setup.msi /QN /L*V "C:\Temp\msilog.log"
Quick explanation:
/L*V "C:\Temp\msilog.log"= verbose logging
/QN = run completely silently
/i = run install sequence
There is a much more comprehensive answer here: Batch script to install MSI. This answer provides details on the msiexec.exe command line options and a description of how to find the "public properties" that you can set on the command line at install time. These properties are generally different for each MSI.
SFTP will almost always be significantly slower than FTP or FTPS (usually by several orders of magnitude). The reason for the difference is that there is a lot of additional packet, encryption and handshaking overhead inherent in the SSH2 protocol that FTP doesn't have to worry about. FTP is a very lean and comparatively simple protocol with almost no data transfer overhead, and the protocol was specifically designed for transferring files quickly. Encryption will slow FTP down, but not nearly to the level of SFTP.
SFTP runs over SSH2 and is much more susceptible to network latency and client and server machine resource constraints. This increased susceptibility is due to the extra data handshaking involved with every packet sent between the client and server, and with the additional complexity inherent in decoding an SSH2 packet. SSH2 was designed as a replacement for Telnet and other insecure remote shells, not for very high speed communications. The flexibility that SSH2 provides for securely packaging and transferring almost any type of data also contributes a great deal of additional complexity and overhead to the protocol.
However, it is still possible to get a data transfer rate of several MB/s between client and server using SFTP if the right network conditions are present. The following are items to check when trying to maximize SFTP transfer speeds:
Is there a firewall or network device inspecting or throttling SSH2 traffic on your network? That might be slowing things down. Check you firewall settings. We've had users report solving extremely slow SFTP file transfers by modifying their firewall rules. The SFTP client you use can make a big difference. Try several different SFTP clients and see if you get different results. Network latency will drastically affect SFTP. If the link you are on has a high degree of latency then that is going to be a problem for fast transfers. How powerful is the server machine? Encryption with SFTP is very intensive. Make sure you have a sufficiently powerful machine that isn't being overtaxed during SFTP file transfers (high CPU utilization).
I suspect you might not have Customer.equals()
implemented properly (or at all).
List.contains()
uses equals()
to verify whether any of its elements is identical to the object passed as parameter. However, the default implementation of equals
tests for physical identity, not value identity. So if you have not overwritten it in Customer
, it will return false for two distinct Customer objects having identical state.
Here are the nitty-gritty details of how to implement equals
(and hashCode
, which is its pair - you must practically always implement both if you need to implement either of them). Since you haven't shown us the Customer class, it is difficult to give more concrete advice.
As others have noted, you are better off using a Set rather than doing the job by hand, but even for that, you still need to implement those methods.
DON'T be tempted to do things like this:
Select * from [User] U where convert(varchar(10),U.DateCreated, 120) = '2014-02-07'
This is a better way:
Select * from [User] U
where U.DateCreated >= '2014-02-07' and U.DateCreated < dateadd(day,1,'2014-02-07')
see: What does the word “SARGable” really mean?
EDIT + There are 2 fundamental reasons for avoiding use of functions on data in the where clause (or in join conditions).
2014-02-07
. It is far more efficient to alter the criteria to suit the data instead. "Amending the criteria to suit the data" is my way of describing "use SARGABLE
predicates"
And do not use between either.
the best practice with date and time ranges is to avoid BETWEEN and to always use the form:
WHERE col >= '20120101' AND col < '20120201' This form works with all types and all precisions, regardless of whether the time part is applicable.
http://sqlmag.com/t-sql/t-sql-best-practices-part-2 (Itzik Ben-Gan)
One already exists. If you cannot get over the "Move" syntax of the System.IO
namespace. There is a static class FileSystem
within the Microsoft.VisualBasic.FileIO namespace that has both a RenameDirectory
and RenameFile
already within it.
As mentioned by SLaks, this is just a wrapper for Directory.Move
and File.Move
.
Let's say we have the following Spark DataFrame:
df = sqlContext.createDataFrame(
[
(1, "Mark", "Brown"),
(2, "Tom", "Anderson"),
(3, "Joshua", "Peterson")
],
('id', 'firstName', 'lastName')
)
There are typically three different ways you can use to print the content of the dataframe:
Print Spark DataFrame
The most common way is to use show()
function:
>>> df.show()
+---+---------+--------+
| id|firstName|lastName|
+---+---------+--------+
| 1| Mark| Brown|
| 2| Tom|Anderson|
| 3| Joshua|Peterson|
+---+---------+--------+
Print Spark DataFrame vertically
Say that you have a fairly large number of columns and your dataframe doesn't fit in the screen. You can print the rows vertically - For example, the following command will print the top two rows, vertically, without any truncation.
>>> df.show(n=2, truncate=False, vertical=True)
-RECORD 0-------------
id | 1
firstName | Mark
lastName | Brown
-RECORD 1-------------
id | 2
firstName | Tom
lastName | Anderson
only showing top 2 rows
Convert to Pandas and print Pandas DataFrame
Alternatively, you can convert your Spark DataFrame into a Pandas DataFrame using .toPandas()
and finally print()
it.
>>> df_pd = df.toPandas()
>>> print(df_pd)
id firstName lastName
0 1 Mark Brown
1 2 Tom Anderson
2 3 Joshua Peterson
Note that this is not recommended when you have to deal with fairly large dataframes, as Pandas needs to load all the data into memory. If this is the case, the following configuration will help when converting a large spark dataframe to a pandas one:
spark.conf.set("spark.sql.execution.arrow.pyspark.enabled", "true")
For more details you can refer to my blog post Speeding up the conversion between PySpark and Pandas DataFrames
Just in case above solution did not work. In my case , Bitdefender Antivirus was Preventing AAPT2 from making change on certain file.
Note that in PHP 7.4, money_format() function is deprecated. It can be replaced by the intl NumberFormatter functionality, just make sure you enable the php-intl extension. It's a small amount of effort and worth it as you get a lot of customizability.
$f = new NumberFormatter("en", NumberFormatter::CURRENCY);
$f->formatCurrency(12345, "USD"); // Outputs "$12,345.00"
The fast way that will still work for 7.4 is as mentioned by Darryl Hein:
'$' . number_format($money, 2);
I had a similar problem with the jQuery Thickbox (a lightbox-style dialog widget). The way I fixed my problem is as follows:
function setFocusThickboxIframe() {
var iframe = $("#TB_iframeContent")[0];
iframe.contentWindow.focus();
}
$(document).ready(function(){
$("#id_cmd_open").click(function(){
/*
run thickbox code here to open lightbox,
like tb_show("google this!", "http://www.google.com");
*/
setTimeout(setFocusThickboxIframe, 100);
return false;
});
});
The code doesn't seem to work without the setTimeout(). Based on my testing, it works in Firefox3.5, Safari4, Chrome4, IE7 and IE6.
There are certain things you have to take care:
NotFoundException
that are encountered by default in the until
condition.To invoke click()
as soon as the element is returned, you can use:
new WebDriverWait(driver, 10).until(ExpectedConditions.elementToBeClickable(By.xpath("(//div[@id='brandSlider']/div[1]/div/div/div/img)[50]"))).click();
To simply validate if the element is located and clickable, wrap up the WebDriverWait in a try-catch{}
block as follows:
try {
new WebDriverWait(driver, 10).until(ExpectedConditions.elementToBeClickable(By.xpath("(//div[@id='brandSlider']/div[1]/div/div/div/img)[50]")));
System.out.println("Element is clickable");
}
catch(TimeoutException e) {
System.out.println("Element isn't clickable");
}
If WebDriverWait returns the located and clickable element but the element is still not clickable, you need to invoke executeScript()
method as follows:
WebElement element = new WebDriverWait(driver, 10).until(ExpectedConditions.elementToBeClickable(By.xpath("(//div[@id='brandSlider']/div[1]/div/div/div/img)[50]")));
((JavascriptExecutor)driver).executeScript("arguments[0].click();", element);
widthRange.map(function(_, i) { return i });
or
widthRange.map((_, i) => i);
Although Reed Copsey and Marc Gravell already described about IQueryable
(and also IEnumerable
) enough,mI want to add little more here by providing a small example on IQueryable
and IEnumerable
as many users asked for it
Example: I have created two table in database
CREATE TABLE [dbo].[Employee]([PersonId] [int] NOT NULL PRIMARY KEY,[Gender] [nchar](1) NOT NULL)
CREATE TABLE [dbo].[Person]([PersonId] [int] NOT NULL PRIMARY KEY,[FirstName] [nvarchar](50) NOT NULL,[LastName] [nvarchar](50) NOT NULL)
The Primary key(PersonId
) of table Employee
is also a forgein key(personid
) of table Person
Next i added ado.net entity model in my application and create below service class on that
public class SomeServiceClass
{
public IQueryable<Employee> GetEmployeeAndPersonDetailIQueryable(IEnumerable<int> employeesToCollect)
{
DemoIQueryableEntities db = new DemoIQueryableEntities();
var allDetails = from Employee e in db.Employees
join Person p in db.People on e.PersonId equals p.PersonId
where employeesToCollect.Contains(e.PersonId)
select e;
return allDetails;
}
public IEnumerable<Employee> GetEmployeeAndPersonDetailIEnumerable(IEnumerable<int> employeesToCollect)
{
DemoIQueryableEntities db = new DemoIQueryableEntities();
var allDetails = from Employee e in db.Employees
join Person p in db.People on e.PersonId equals p.PersonId
where employeesToCollect.Contains(e.PersonId)
select e;
return allDetails;
}
}
they contains same linq. It called in program.cs
as defined below
class Program
{
static void Main(string[] args)
{
SomeServiceClass s= new SomeServiceClass();
var employeesToCollect= new []{0,1,2,3};
//IQueryable execution part
var IQueryableList = s.GetEmployeeAndPersonDetailIQueryable(employeesToCollect).Where(i => i.Gender=="M");
foreach (var emp in IQueryableList)
{
System.Console.WriteLine("ID:{0}, EName:{1},Gender:{2}", emp.PersonId, emp.Person.FirstName, emp.Gender);
}
System.Console.WriteLine("IQueryable contain {0} row in result set", IQueryableList.Count());
//IEnumerable execution part
var IEnumerableList = s.GetEmployeeAndPersonDetailIEnumerable(employeesToCollect).Where(i => i.Gender == "M");
foreach (var emp in IEnumerableList)
{
System.Console.WriteLine("ID:{0}, EName:{1},Gender:{2}", emp.PersonId, emp.Person.FirstName, emp.Gender);
}
System.Console.WriteLine("IEnumerable contain {0} row in result set", IEnumerableList.Count());
Console.ReadKey();
}
}
The output is same for both obviously
ID:1, EName:Ken,Gender:M
ID:3, EName:Roberto,Gender:M
IQueryable contain 2 row in result set
ID:1, EName:Ken,Gender:M
ID:3, EName:Roberto,Gender:M
IEnumerable contain 2 row in result set
So the question is what/where is the difference? It does not seem to have any difference right? Really!!
Let's have a look on sql queries generated and executed by entity framwork 5 during these period
IQueryable execution part
--IQueryableQuery1
SELECT
[Extent1].[PersonId] AS [PersonId],
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE ([Extent1].[PersonId] IN (0,1,2,3)) AND (N'M' = [Extent1].[Gender])
--IQueryableQuery2
SELECT
[GroupBy1].[A1] AS [C1]
FROM ( SELECT
COUNT(1) AS [A1]
FROM [dbo].[Employee] AS [Extent1]
WHERE ([Extent1].[PersonId] IN (0,1,2,3)) AND (N'M' = [Extent1].[Gender])
) AS [GroupBy1]
IEnumerable execution part
--IEnumerableQuery1
SELECT
[Extent1].[PersonId] AS [PersonId],
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE [Extent1].[PersonId] IN (0,1,2,3)
--IEnumerableQuery2
SELECT
[Extent1].[PersonId] AS [PersonId],
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE [Extent1].[PersonId] IN (0,1,2,3)
Common script for both execution part
/* these two query will execute for both IQueryable or IEnumerable to get details from Person table
Ignore these two queries here because it has nothing to do with IQueryable vs IEnumerable
--ICommonQuery1
exec sp_executesql N'SELECT
[Extent1].[PersonId] AS [PersonId],
[Extent1].[FirstName] AS [FirstName],
[Extent1].[LastName] AS [LastName]
FROM [dbo].[Person] AS [Extent1]
WHERE [Extent1].[PersonId] = @EntityKeyValue1',N'@EntityKeyValue1 int',@EntityKeyValue1=1
--ICommonQuery2
exec sp_executesql N'SELECT
[Extent1].[PersonId] AS [PersonId],
[Extent1].[FirstName] AS [FirstName],
[Extent1].[LastName] AS [LastName]
FROM [dbo].[Person] AS [Extent1]
WHERE [Extent1].[PersonId] = @EntityKeyValue1',N'@EntityKeyValue1 int',@EntityKeyValue1=3
*/
So you have few questions now, let me guess those and try to answer them
Why are different scripts generated for same result?
Lets find out some points here,
all queries has one common part
WHERE [Extent1].[PersonId] IN (0,1,2,3)
why? Because both function IQueryable<Employee> GetEmployeeAndPersonDetailIQueryable
and
IEnumerable<Employee> GetEmployeeAndPersonDetailIEnumerable
of SomeServiceClass
contains one common line in linq queries
where employeesToCollect.Contains(e.PersonId)
Than why is the
AND (N'M' = [Extent1].[Gender])
part is missing in IEnumerable
execution part, while in both function calling we used Where(i => i.Gender == "M") in
program.cs`
Now we are in the point where difference came between
IQueryable
andIEnumerable
What entity framwork does when an IQueryable
method called, it tooks linq statement written inside the method and try to find out if more linq expressions are defined on the resultset, it then gathers all linq queries defined until the result need to fetch and constructs more appropriate sql query to execute.
It provide a lots of benefits like,
like here in example sql server returned to application only two rows after IQueryable execution` but returned THREE rows for IEnumerable query why?
In case of IEnumerable
method, entity framework took linq statement written inside the method and constructs sql query when result need to fetch. it does not include rest linq part to constructs the sql query. Like here no filtering is done in sql server on column gender
.
But the outputs are same? Because 'IEnumerable filters the result further in application level after retrieving result from sql server
SO, what should someone choose?
I personally prefer to define function result as IQueryable<T>
because there are lots of benefit it has over IEnumerable
like, you could join two or more IQueryable functions, which generate more specific script to sql server.
Here in example you can see an IQueryable Query(IQueryableQuery2)
generates a more specific script than IEnumerable query(IEnumerableQuery2)
which is much more acceptable in my point of view.
I have a solution for that, tailor it to your own needs, an excerpt from one of my libs:
elvisStructureSeparator: '.',
// An Elvis operator replacement. See:
// http://coffeescript.org/ --> The Existential Operator
// http://fantom.org/doc/docLang/Expressions.html#safeInvoke
//
// The fn parameter has a SPECIAL SYNTAX. E.g.
// some.structure['with a selector like this'].value transforms to
// 'some.structure.with a selector like this.value' as an fn parameter.
//
// Configurable with tulebox.elvisStructureSeparator.
//
// Usage examples:
// tulebox.elvis(scope, 'arbitrary.path.to.a.function', fnParamA, fnParamB, fnParamC);
// tulebox.elvis(this, 'currentNode.favicon.filename');
elvis: function (scope, fn) {
tulebox.dbg('tulebox.elvis(' + scope + ', ' + fn + ', args...)');
var implicitMsg = '....implicit value: undefined ';
if (arguments.length < 2) {
tulebox.dbg(implicitMsg + '(1)');
return undefined;
}
// prepare args
var args = [].slice.call(arguments, 2);
if (scope === null || fn === null || scope === undefined || fn === undefined
|| typeof fn !== 'string') {
tulebox.dbg(implicitMsg + '(2)');
return undefined;
}
// check levels
var levels = fn.split(tulebox.elvisStructureSeparator);
if (levels.length < 1) {
tulebox.dbg(implicitMsg + '(3)');
return undefined;
}
var lastLevel = scope;
for (var i = 0; i < levels.length; i++) {
if (lastLevel[levels[i]] === undefined) {
tulebox.dbg(implicitMsg + '(4)');
return undefined;
}
lastLevel = lastLevel[levels[i]];
}
// real return value
if (typeof lastLevel === 'function') {
var ret = lastLevel.apply(scope, args);
tulebox.dbg('....function value: ' + ret);
return ret;
} else {
tulebox.dbg('....direct value: ' + lastLevel);
return lastLevel;
}
},
works like a charm. Enjoy the less pain!
maybe a little bit late, but I come to this situation recently and found a simple solution, 2 functions are needed.
load the image.
function getImgFromUrl(logo_url, callback) {
var img = new Image();
img.src = logo_url;
img.onload = function () {
callback(img);
};
}
in onload event on first step, make a callback to use the jspdf doc.
function generatePDF(img){
var options = {orientation: 'p', unit: 'mm', format: custom};
var doc = new jsPDF(options);
doc.addImage(img, 'JPEG', 0, 0, 100, 50);}
use the above functions.
var logo_url = "/images/logo.jpg";
getImgFromUrl(logo_url, function (img) {
generatePDF(img);
});
my solution, hope help
custom ObjectMapper and config to spring xml(register message conveters)
public class PyResponseConfigObjectMapper extends ObjectMapper {
public PyResponseConfigObjectMapper() {
disable(SerializationFeature.WRITE_NULL_MAP_VALUES); //map no_null
setSerializationInclusion(JsonInclude.Include.NON_NULL); // bean no_null
}
}
There are two problems. As in the question, select-string needs to operate on the output string, which can be had from "out-string". Also, select-string doesn't operate linewise on strings that are piped to it. Here is a generic solution
(alias|out-string) -split "`n" | select-string Write
The public
keyword is used only when declaring a class method.
Since you're declaring a simple function and not a class you need to remove public
from your code.
An alternative solution, which is portable and with higher precision, available since C++11, is to use std::chrono
.
Here is an example:
#include <iostream>
#include <chrono>
typedef std::chrono::high_resolution_clock Clock;
int main()
{
auto t1 = Clock::now();
auto t2 = Clock::now();
std::cout << "Delta t2-t1: "
<< std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count()
<< " nanoseconds" << std::endl;
}
Running this on ideone.com gave me:
Delta t2-t1: 282 nanoseconds
Create rectangle.xml
using Shape Drawable Like this put in to your Drawable Folder...
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="@android:color/transparent"/>
<corners android:radius="12px"/>
<stroke android:width="2dip" android:color="#000000"/>
</shape>
put it in to an ImageView
<ImageView
android:id="@+id/rectimage"
android:layout_height="150dp"
android:layout_width="150dp"
android:src="@drawable/rectangle">
</ImageView>
Hope this will help you.
On Windows you can have in your PATH
PATH = ...;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\; ...
remove it from PATH env, then
npm install -g typescript@latest
it worked for me to solve the
"TypeScript error TS1005: ';' expected"
See also how to update TypeScript to latest version with npm?
Instead of using ->bindParam()
you can pass the data only at the time of ->execute()
:
$data = [ ':item_name' => $_POST['item_name'], ':item_type' => $_POST['item_type'], ':item_price' => $_POST['item_price'], ':item_description' => $_POST['item_description'], ':image_location' => 'images/'.$_FILES['file']['name'], ':status' => 0, ':id' => 0, ]; $stmt->execute($data);
In this way you would know exactly what values are going to be sent.
Your question has already been answered, but IIRC you can replace lines like:
if d.has_key(scope_item):
with:
if scope_item in d:
That is, d
references d.keys()
in that construction. Sometimes defaultdict
isn't the best option (for example, if you want to execute multiple lines of code after the else
associated with the above if
), and I find the in
syntax easier to read.
While I like the class decorator from Oz123, you could also do the following, which uses an explicit class wrapper and __new__ with a class Factory method returning the class within a closure:
class B(object):
def __new__(cls, val):
return cls.factory(val)
@classmethod
def factory(cls, val):
private = {'var': 'test'}
class InnerB(object):
def __init__(self):
self.variable = val
pass
@property
def var(self):
return private['var']
return InnerB()
What have you tried? This should work.
h1 { font-size: 20pt; }
h2 { font-size: 16pt; }
This will take care of the empty td:
<td style="min-width: 20px;"></td>
Here's an example of the string "abc" repeated
3 times:
#include <iostream>
#include <sstream>
#include <algorithm>
#include <string>
#include <iterator>
using namespace std;
int main() {
ostringstream repeated;
fill_n(ostream_iterator<string>(repeated), 3, string("abc"));
cout << "repeated: " << repeated.str() << endl; // repeated: abcabcabc
return 0;
}
Assuming that ids are unique and you'll only have to remove the one element splice
should do the trick:
var data = [
{"id":"88","name":"Lets go testing"},
{"id":"99","name":"Have fun boys and girls"},
{"id":"108","name":"You are awesome!"}
],
id = 88;
console.table(data);
$.each(data, function(i, el){
if (this.id == id){
data.splice(i, 1);
}
});
console.table(data);
You can transpose the array if you want to get the length of the other dimension.
len(np.array([[2,3,1,0], [2,3,1,0], [3,2,1,1]]).T)
Unfortunately, it's not in the .NET Framework itself. My wish is that you could integrate with FileZilla, but I don't think it exposes an interface. They do have scripting I think, but it won't be as clean obviously.
I've used CuteFTP in a project which does SFTP. It exposes a COM component which I created a .NET wrapper around. The catch, you'll find, is permissions. It runs beautifully under the Windows credentials which installed CuteFTP, but running under other credentials requires permissions to be set in DCOM.
The simple one line solution is
datediff(dd,'2010-12-31 15:13:48.593','2010-12-31 00:00:00.000')=0
datediff(dd,'2010-12-31 15:13:48.593','2010-12-31 00:00:00.000')<=1
datediff(dd,'2010-12-31 15:13:48.593','2010-12-31 00:00:00.000')>=1
You can try various option with this other than "dd"
https://www.cloudjojo.com/how-to-connect-ec2-machine-with-ftp/
Make sure you open port 21 on aws security group.
Use both. In fact refer a guide like the OWASP XSS Prevention cheat sheet, on the possible cases for usage of output encoding and input validation.
Input validation helps when you cannot rely on output encoding in certain cases. For instance, you're better off validating inputs appearing in URLs rather than encoding the URLs themselves (Apache will not serve a URL that is url-encoded). Or for that matter, validate inputs that appear in JavaScript expressions.
Ultimately, a simple thumb rule will help - if you do not trust user input enough or if you suspect that certain sources can result in XSS attacks despite output encoding, validate it against a whitelist.
Do take a look at the OWASP ESAPI source code on how the output encoders and input validators are written in a security library.
<c:if test="${ansokanInfo.pSystem eq 'NAT'}">
Here is a Javascript solution (for folks like me who were looking for an answer to the title):
function SaveToDisk(fileURL, fileName) {
// for non-IE
if (!window.ActiveXObject) {
var save = document.createElement('a');
save.href = fileURL;
save.target = '_blank';
save.download = fileName || 'unknown';
var evt = new MouseEvent('click', {
'view': window,
'bubbles': true,
'cancelable': false
});
save.dispatchEvent(evt);
(window.URL || window.webkitURL).revokeObjectURL(save.href);
}
// for IE < 11
else if ( !! window.ActiveXObject && document.execCommand) {
var _window = window.open(fileURL, '_blank');
_window.document.close();
_window.document.execCommand('SaveAs', true, fileName || fileURL)
_window.close();
}
}
source: http://muaz-khan.blogspot.fr/2012/10/save-files-on-disk-using-javascript-or.html
Unfortunately the working for me with IE11, which is not accepting new MouseEvent. I use the following in that case:
//...
try {
var evt = new MouseEvent(...);
} catch (e) {
window.open(fileURL, fileName);
}
//...
Path Customization (tested in laravel 7)
When a user is successfully authenticated, they will be redirected to the /home
URI. You can customize the post-authentication redirect path using the HOME constant defined in your RouteServiceProvider
:
public const HOME = '/home';
Will my existing implementations continue to work? If not, is there an easy to implement alternative.
The answer is yes, but not without a little work.
$.browser is an official plugin which was included in older versions of jQuery, so like any plugin you can simple copy it and incorporate it into your project or you can simply add it to the end of any jQuery release.
I have extracted the code for you incase you wish to use it.
// Limit scope pollution from any deprecated API
(function() {
var matched, browser;
// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
jQuery.uaMatch = function( ua ) {
ua = ua.toLowerCase();
var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
/(webkit)[ \/]([\w.]+)/.exec( ua ) ||
/(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
/(msie) ([\w.]+)/.exec( ua ) ||
ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
[];
return {
browser: match[ 1 ] || "",
version: match[ 2 ] || "0"
};
};
matched = jQuery.uaMatch( navigator.userAgent );
browser = {};
if ( matched.browser ) {
browser[ matched.browser ] = true;
browser.version = matched.version;
}
// Chrome is Webkit, but Webkit is also Safari.
if ( browser.chrome ) {
browser.webkit = true;
} else if ( browser.webkit ) {
browser.safari = true;
}
jQuery.browser = browser;
jQuery.sub = function() {
function jQuerySub( selector, context ) {
return new jQuerySub.fn.init( selector, context );
}
jQuery.extend( true, jQuerySub, this );
jQuerySub.superclass = this;
jQuerySub.fn = jQuerySub.prototype = this();
jQuerySub.fn.constructor = jQuerySub;
jQuerySub.sub = this.sub;
jQuerySub.fn.init = function init( selector, context ) {
if ( context && context instanceof jQuery && !(context instanceof jQuerySub) ) {
context = jQuerySub( context );
}
return jQuery.fn.init.call( this, selector, context, rootjQuerySub );
};
jQuerySub.fn.init.prototype = jQuerySub.fn;
var rootjQuerySub = jQuerySub(document);
return jQuerySub;
};
})();
If you're asking why anyone would need a depreciated plugin, I have prepared the following answer.
First and foremost the answer is compatibility. Since jQuery is plugin based, some developers opted to use $.browser and with the latest releases of jQuery which doesn't include $.browser all those plugins where rendered useless.
jQuery did release a migration plugin, which was created for developers to detect whether their plugin's used any depreciated dependencies such as $.browser.
Although this helped developers patch their plugin's. jQuery dropped $.browser completely so the above fix is probably the only solution until your developers patch or incorporate the above.
About: jQuery.browser
Database in the connection string didn't exist. I thought it did but it hadn't been created yet.
Use below to check file's size and clear if it's greater,
$("input[type='file']").on("change", function () {
if(this.files[0].size > 2000000) {
alert("Please upload file less than 2MB. Thanks!!");
$(this).val('');
}
});
I know this question is quite old, but I have not seen this solution here before:
If you rewrite the <body>
tag to.
<body oncontextmenu="return false;">
you can prevent the right click without using javascript.
However, you can't prevent keyboard shortcuts with HTML. For this, you must use Javascript.
Try adding this to your css
.form { width:985px; margin:0 auto }
and add width:100% to the body tag
Then put:
<div class="form">
before the tag.
My version using variables in a bash script:
Find any backslashes and replace with forward slashes:
input="This has a backslash \\"
output=$(echo "$input" | sed 's,\\,/,g')
echo "$output"
For any CSS3-enabled browser you can use an adjacent sibling selector for styling your labels
input:checked + label {
color: white;
}
MDN's browser compatibility table says essentially all of the current, popular browsers (Chrome, IE, Firefox, Safari), on both desktop and mobile, are compatible.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<form name="myform">
Enter your name
<input type="text" name="inputbox" id='textBox' value="" />
<input type="button" name="button" class="member" value="Click1" />
<input type="button" name="button" value="Click2" onClick="testResults()" />
</form>
<script>
function testResults(n) {
var answer = $("#textBox").val();
if (answer == 2) {
alert("Good !");
} else if (answer == 3) {
alert("very Good !");
} else if (answer == 4) {
alert("better !");
} else if (answer == 5) {
alert("best !");
} else {
alert('wrong');
}
}
$(document).on('click', '.member', function () {
var answer = $("#textBox").val();
if (answer == 2) {
alert("Good !");
} else if (answer == 3) {
alert("very Good !");
} else if (answer == 4) {
alert("better !");
} else if (answer == 5) {
alert("best !");
} else {
alert('wrong');
}
});
</script>
You should not need to access Maven-specific files to get the version information of any given library/class.
You can simply use getClass().getPackage().getImplementationVersion()
to get the version information that is stored in a .jar-files MANIFEST.MF
. Luckily Maven is smart enough Unfortunately Maven does not write the correct information to the manifest as well by default!
Instead one has to modify the <archive>
configuration element of the maven-jar-plugin
to set addDefaultImplementationEntries
and addDefaultSpecificationEntries
to true
, like this:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
<addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
</manifest>
</archive>
</configuration>
</plugin>
Ideally this configuration should be put into the company pom
or another base-pom.
Detailed documentation of the <archive>
element can be found in the Maven Archive documentation.
This worked for me. Each month on X axis
str_month_list = ['January','February','March','April','May','June','July','August','September','October','November','December']
ax.set_xticks(range(0,12))
ax.set_xticklabels(str_month_list)
You might consider adding an additional radio button to each group labeled 'none' or the like. This can create a consistent user experience without complicating the development process.
Use the AsyncTask class (instead of Runnable). It has a method called onProgressUpdate which can affect the UI (it's invoked in the UI thread).
1) It is the only difference in C++.
2) POD: plain old data Other classes -> not POD
In simple terms, environment variables are set when you open a new shell session. At any time if you change any of the variable values, the shell has no way of picking that change. that means the changes you made become effective in new shell sessions.
The export
command, on the other hand, provides the ability to update the current shell session about the change you made to the exported variable. You don't have to wait until new shell session to use the value of the variable you changed.
In order to display the results with the line numbers, you might try this
grep -nr "word to search for" /path/to/file/file
The result should be something like this:
linenumber: other data "word to search for" other data
If you've got the Java EE JDK with Glassfish, it's in glassfish3/glassfish/modules/javax.servlet-api.jar.
search all not (word characters || space):
str.replace(/[^\w ]/, '')
tsc 0.9.1.1 does not seem to have a watch feature.
You could use a PowerShell script like the one:
#watch a directory, for changes to TypeScript files.
#
#when a file changes, then re-compile it.
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "V:\src\MyProject"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true
$changed = Register-ObjectEvent $watcher "Changed" -Action {
if ($($eventArgs.FullPath).EndsWith(".ts"))
{
$command = '"c:\Program Files (x86)\Microsoft SDKs\TypeScript\tsc.exe" "$($eventArgs.FullPath)"'
write-host '>>> Recompiling file ' $($eventArgs.FullPath)
iex "& $command"
}
}
write-host 'changed.Id:' $changed.Id
#to stop the watcher, then close the PowerShell window, OR run this command:
# Unregister-Event < change Id >
Here is answer using Maciej Sawicki's one and implementing Promise
as callback:
function loadScripts(urls, path) {
return new Promise(function(resolve) {
urls.forEach(function(src, i) {
let script = document.createElement('script');
script.type = 'text/javascript';
script.src = (path || "") + src;
script.async = false;
// If last script, bind the callback event to resolve
if(i == urls.length-1) {
// Multiple binding for browser compatibility
script.onreadystatechange = resolve;
script.onload = resolve;
}
// Fire the loading
document.body.appendChild(script);
});
});
}
Use:
let JSDependencies = ["jquery.js",
"LibraryNeedingJquery.js",
"ParametersNeedingLibrary.js"];
loadScripts(JSDependencies,'JavaScript/').then(taskNeedingParameters);
All Javascript files are downloaded as soon as possible and executed in the given order. Then taskNeedingParameters
is called.
You can try this. Override the OnPaint event of the TextBox.
protected override void OnPaint(PaintEventArgs e)
{
SolidBrush drawBrush = new SolidBrush(ForeColor); //Use the ForeColor property
// Draw string to screen.
e.Graphics.DrawString(Text, Font, drawBrush, 0f,0f); //Use the Font property
}
set the ControlStyles to "UserPaint"
public MyTextBox()//constructor
{
// This call is required by the Windows.Forms Form Designer.
this.SetStyle(ControlStyles.UserPaint,true);
InitializeComponent();
// TODO: Add any initialization after the InitForm call
}
Or you can try this hack
In Enter event set the focus
int index=this.Controls.IndexOf(this.textBox1);
this.Controls[index-1].Focus();
So your control will not focussed and behave like disabled.
As per PEP-20 by Tim Peters, "Explicit is better than implicit" and "Readability counts". If all you need from the os
module is under os.path
, import os.path
would be more explicit and let others know what you really care about.
Likewise, PEP-20 also says "Simple is better than complex", so if you also need stuff that resides under the more-general os
umbrella, import os
would be preferred.
I also was annoyed by restrictions on what sort of functions pool.map could accept. I wrote the following to circumvent this. It appears to work, even for recursive use of parmap.
from multiprocessing import Process, Pipe
from itertools import izip
def spawn(f):
def fun(pipe, x):
pipe.send(f(x))
pipe.close()
return fun
def parmap(f, X):
pipe = [Pipe() for x in X]
proc = [Process(target=spawn(f), args=(c, x)) for x, (p, c) in izip(X, pipe)]
[p.start() for p in proc]
[p.join() for p in proc]
return [p.recv() for (p, c) in pipe]
if __name__ == '__main__':
print parmap(lambda x: x**x, range(1, 5))
Follow this for Windows operating system with WAMP installed.
System > Advanced System Settings > Environment Variables
Click new
Variable name : path
Variable value : c:\wamp\bin\php\php5.3.13\
Click ok
As an additional hint to the great accepted answer:
When using a variation of the proposed solution, I got errors because of php setting 'max_execution_time'. So what I did was the following:
set_time_limit(120);
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_NOBODY, true);
$result = curl_exec($curl);
set_time_limit(ini_get('max_execution_time'));
curl_close($curl);
First I set the time limit to a higher number of seconds, in the end I set it back to the value defined in the php settings.
For me, the easiest solution would be keep value when count is equal to the maximum. Therefore, the following one line command is enough :
df[df['count'] == df.groupby(['Mt'])['count'].transform(max)]
Follow this steps:
-Build
-Generate Signed Apk
-Create new
Then fill up "New Key Store" form. If you wand to change .jnk file destination then chick on destination and give a name to get Ok button. After finishing it you will get "Key store password", "Key alias", "Key password" Press next and change your the destination folder. Then press finish, thats all. :)
How about using StringUtils.countMatches from Apache Commons Lang?
String str = "helloslkhellodjladfjhello";
String findStr = "hello";
System.out.println(StringUtils.countMatches(str, findStr));
That outputs:
3
It seems that if
Content-Type: application/json
andThen MVC doesn't really bind the POST body to any particular class. Nor can you just fetch the POST body as a param of the ActionResult (suggested in another answer). Fair enough. You need to fetch it from the request stream yourself and process it.
[HttpPost]
public ActionResult Index(int? id)
{
Stream req = Request.InputStream;
req.Seek(0, System.IO.SeekOrigin.Begin);
string json = new StreamReader(req).ReadToEnd();
InputClass input = null;
try
{
// assuming JSON.net/Newtonsoft library from http://json.codeplex.com/
input = JsonConvert.DeserializeObject<InputClass>(json)
}
catch (Exception ex)
{
// Try and handle malformed POST body
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
//do stuff
}
Update:
for Asp.Net Core, you have to add [FromBody]
attrib beside your param name in your controller action for complex JSON data types:
[HttpPost]
public ActionResult JsonAction([FromBody]Customer c)
Also, if you want to access the request body as string to parse it yourself, you shall use Request.Body
instead of Request.InputStream
:
Stream req = Request.Body;
req.Seek(0, System.IO.SeekOrigin.Begin);
string json = new StreamReader(req).ReadToEnd();
Based on what you all shared I was able to put this together:
#!/usr/bin/env bash
VAR1="192.168.1.20 192.168.1.126 192.168.1.36"
for a in $VAR1; do { ssh -t -t $a -l Administrator "sudo softwareupdate -l"; } & done;
WAITPIDS="$WAITPIDS "$!;...; wait $WAITPIDS
echo "Script has finished"
Exit 1
This lists all the updates on the mac on three machines at once. Later on I used it to perform a software update for all machines when i CAT my ipaddress.txt
Try this one in model class
[Required(ErrorMessage = "Enter full name.")]
[RegularExpression("([A-Za-z])+( [A-Za-z]+)", ErrorMessage = "Enter valid full name.")]
public string FullName { get; set; }
plt.imsave worked for me. You can find the documentation here: https://matplotlib.org/3.2.1/api/_as_gen/matplotlib.pyplot.imsave.html
#file_path = directory address where the image will be stored along with file name and extension
#array = variable where the image is stored. I think for the original post this variable is im_np
plt.imsave(file_path, array)
I would recommend checking the connections to show the maximum thread connection is
show variables like "max_connections";
sample
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| max_connections | 13 |
+-----------------+-------+
1 row in set
Then increase it by example
set global max_connections = 500;
I ran into the same issue, and I fixed it by adding my windows username to SQL and then to my server, here is how I did:
First, create a new login with your Windows username:
Click Search, then type your name in the box and click check names.
Then add your that user to the server:
Right click on the Server > Permissions > Search > Browse > Select your user (You will notice that now the user you created is available in the list)
I hope it helps ;-)
How is 0.2999999999999998 an acceptable answer? If I were the asker I would want an answer of .3. What we have here is false precision, and my experiments with floor, %, etc indicate that Javascript is fond of false precision for these operations. So I think the answers that are using conversion to string are on the right track.
I would do this:
var decPart = (n+"").split(".")[1];
Specifically, I was using 100233.1 and I wanted the answer ".1".
What about wrapping it in a container. Container shoud have style like:
{
width:100%;
border: 10px solid transparent;
}
You can -Xours
or -Xtheirs
with git merge
as well. So:
git reset --hard HEAD
)git merge -Xours
or git merge -Xtheirs
)DISCLAIMER: of course you can choose only one option, either -Xours
or -Xtheirs
, do use different strategy you should of course go file by file.
I do not know if there is a way for checkout
, but I do not honestly think it is terribly useful: selecting the strategy with the checkout command is useful if you want different solutions for different files, otherwise just go for the merge strategy approach.
I had the same problem.
Solved by sharing internet connection (on the hosting OS).
Network Connection Properties -> advanced -> Allow other users to connect...
>>> n = -42
>>> -n # if you know n is negative
42
>>> abs(n) # for any n
42
Don't forget to check the docs.
// change "name" and "value" according to your array data.
// Change "yourDataArrayName" name accroding to your array(NSArray).
let resultPredicate = NSPredicate(format: "SELF.name contains[c] %@", "value")
if let sortedDta = yourDataArrayName.filtered(using: resultPredicate) as? NSArray {
//enter code here.
print(sortedDta)
}
the .data()
method is from jQuery. If you want to use this method you need to include the jQuery library and access the method like this:
function doStuff(item) {
var id = $(item).data('id');
}
I also updated your jsFiffle
UPDATE
with pure angularjs and the jqlite you can achieve the goal like this:
function doStuff(item) {
var id = angular.element(item).data('id');
}
You must not access the element with []
because then you get the pure DOM element without all the jQuery or jqlite extra methods.
From Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning
the following
Excessive GC Time and OutOfMemoryError
The concurrent collector will throw an OutOfMemoryError if too much time is being spent in garbage collection: if more than 98% of the total time is spent in garbage collection and less than 2% of the heap is recovered, an OutOfMemoryError will be thrown. This feature is designed to prevent applications from running for an extended period of time while making little or no progress because the heap is too small. If necessary, this feature can be disabled by adding the option -XX:-UseGCOverheadLimit to the command line.
The policy is the same as that in the parallel collector, except that time spent performing concurrent collections is not counted toward the 98% time limit. In other words, only collections performed while the application is stopped count toward excessive GC time. Such collections are typically due to a concurrent mode failure or an explicit collection request (e.g., a call to System.gc()).
in conjunction with a passage further down
One of the most commonly encountered uses of explicit garbage collection occurs with RMIs distributed garbage collection (DGC). Applications using RMI refer to objects in other virtual machines. Garbage cannot be collected in these distributed applications without occasionally collection the local heap, so RMI forces full collections periodically. The frequency of these collections can be controlled with properties. For example,
java -Dsun.rmi.dgc.client.gcInterval=3600000
-Dsun.rmi.dgc.server.gcInterval=3600000
specifies explicit collection once per hour instead of the default rate of once per minute. However, this may also cause some objects to take much longer to be reclaimed. These properties can be set as high as Long.MAX_VALUE to make the time between explicit collections effectively infinite, if there is no desire for an upper bound on the timeliness of DGC activity.
Seems to imply that the evaluation period for determining the 98% is one minute long, but it might be configurable on Sun's JVM with the correct define.
Of course, other interpretations are possible.
This is not supported by some browsers (IE if I recall), but it works in the rest:
document.getElementById("password-field").attributes["type"] = "password";
or
document.getElementById("password-field").attributes["type"] = "text";
If you don't have formatting or formulas you want to keep, you can try saving your file as a tab delimited text file, closing it, and reopening it with excel. This worked for me.
When you read the string from the GUI control, it is already a "raw" string. If you print out the string you might see the backslashes doubled up, but that's an artifact of how Python displays strings; internally there's still only a single backslash.
>>> a='\nu + \lambda + \theta'
>>> a
'\nu + \\lambda + \theta'
>>> len(a)
20
>>> b=r'\nu + \lambda + \theta'
>>> b
'\\nu + \\lambda + \\theta'
>>> len(b)
22
>>> b[0]
'\\'
>>> print b
\nu + \lambda + \theta
That error is a parse error. The parser is throwing it while going through the code, trying to understand it. No code is being executed yet in the parsing stage. Because of that it hasn't yet executed the error_reporting
line, therefore the error reporting settings aren't changed yet.
You cannot change error reporting settings (or really, do anything) in a file with syntax errors.
You may use this simple plugin:
(function ($) {
$.fn.replaceClass = function (pFromClass, pToClass) {
return this.removeClass(pFromClass).addClass(pToClass);
};
}(jQuery));
Usage:
$('.divFoo').replaceClass('colored','blackAndWhite');
Before:
<div class="divFoo colored"></div>
After:
<div class="divFoo blackAndWhite"></div>
Note: you may use various space separated classes.
HTML:
<div class="thumbnail">
</div>
CSS:
.thumbnail {
background: url(image.jpg) 50% 50% no-repeat; /* 50% 50% centers image in div */
width: 250px;
height: 250px;
}
I've discovered that you can use eval to avoid using a subshell. Thus:
IFS=$'\n' eval 'echo "${my_array[*]}"'
the easiest technique is to just assign float to int, for example:
int i;
float f;
f = 34.0098;
i = f;
this will truncate everything behind floating point or you can round your float number before.
As per Apple's documentation:
(void)beginAppearanceTransition:(BOOL)isAppearing animated:(BOOL)animated;
Description:
Tells a child controller its appearance is about to change.
If you are implementing a custom container controller, use this method to tell the child that its views are about to appear or disappear. Do not invoke viewWillAppear:
, viewWillDisappear:
, viewDidAppear:
, or viewDidDisappear:
directly.
(void)endAppearanceTransition;
Description:
Tells a child controller its appearance has changed. If you are implementing a custom container controller, use this method to tell the child that the view transition is complete.
Sample code:
(void)applicationDidEnterBackground:(UIApplication *)application
{
[self.window.rootViewController beginAppearanceTransition: NO animated: NO]; // I commented this line
[self.window.rootViewController endAppearanceTransition]; // I commented this line
}
Question: How I fixed?
Ans: I found this piece of lines in application. This lines made my app not recieving any ViewWillAppear notification's. When I commented these lines it's working fine.
After much fighting, this is what worked for me:
.pre {
font-weight: 500;
font-family: Courier New, monospace;
white-space: pre-wrap;
word-wrap: break-word;
word-break: break-all;
-webkit-hyphens: auto;
-moz-hyphens: auto;
hyphens: auto;
}
Works in the latest versions of Chrome, Firefox and Opera.
Note that I excluded many of the white-space
properties the others suggested -- that actually broke the pre
indentation for me.
By using below, solved the problem
android:scrollbarThumbVertical="@null"
Time to contribute now. I am sysadmin role and worked on getting two public access users to execute xp_cmdshell. I am able to execute xp_cmdshell but not the two users.
I did the following steps:
create new role:
use master
CREATE ROLE [CmdShell_Executor] AUTHORIZATION [dbo]
GRANT EXEC ON xp_cmdshell TO [CmdShell_Executor]
add users in master database: Security --> Users. Membership checks only [CmdShell_Executor] that is just created
set up proxy account:
EXEC sp_xp_cmdshell_proxy_account 'domain\user1','users1 Windows password'
EXEC sp_xp_cmdshell_proxy_account 'domain\user2','users2 Windows password'
Then both users can execute the stored procedure that contains xp_cmdshell invoking a R script run. I let the users come to my PC to type in the password, execute the one line code, then delete the password.
I needed to do the same thing and created a method to do it.
// Now you can just call
var ctx = document.getElementById("rounded-rect").getContext("2d");
// Draw using default border radius,
// stroke it but no fill (function's default values)
roundRect(ctx, 5, 5, 50, 50);
// To change the color on the rectangle, just manipulate the context
ctx.strokeStyle = "rgb(255, 0, 0)";
ctx.fillStyle = "rgba(255, 255, 0, .5)";
roundRect(ctx, 100, 5, 100, 100, 20, true);
// Manipulate it again
ctx.strokeStyle = "#0f0";
ctx.fillStyle = "#ddd";
// Different radii for each corner, others default to 0
roundRect(ctx, 300, 5, 200, 100, {
tl: 50,
br: 25
}, true);
/**
* Draws a rounded rectangle using the current state of the canvas.
* If you omit the last three params, it will draw a rectangle
* outline with a 5 pixel border radius
* @param {CanvasRenderingContext2D} ctx
* @param {Number} x The top left x coordinate
* @param {Number} y The top left y coordinate
* @param {Number} width The width of the rectangle
* @param {Number} height The height of the rectangle
* @param {Number} [radius = 5] The corner radius; It can also be an object
* to specify different radii for corners
* @param {Number} [radius.tl = 0] Top left
* @param {Number} [radius.tr = 0] Top right
* @param {Number} [radius.br = 0] Bottom right
* @param {Number} [radius.bl = 0] Bottom left
* @param {Boolean} [fill = false] Whether to fill the rectangle.
* @param {Boolean} [stroke = true] Whether to stroke the rectangle.
*/
function roundRect(ctx, x, y, width, height, radius, fill, stroke) {
if (typeof stroke === 'undefined') {
stroke = true;
}
if (typeof radius === 'undefined') {
radius = 5;
}
if (typeof radius === 'number') {
radius = {tl: radius, tr: radius, br: radius, bl: radius};
} else {
var defaultRadius = {tl: 0, tr: 0, br: 0, bl: 0};
for (var side in defaultRadius) {
radius[side] = radius[side] || defaultRadius[side];
}
}
ctx.beginPath();
ctx.moveTo(x + radius.tl, y);
ctx.lineTo(x + width - radius.tr, y);
ctx.quadraticCurveTo(x + width, y, x + width, y + radius.tr);
ctx.lineTo(x + width, y + height - radius.br);
ctx.quadraticCurveTo(x + width, y + height, x + width - radius.br, y + height);
ctx.lineTo(x + radius.bl, y + height);
ctx.quadraticCurveTo(x, y + height, x, y + height - radius.bl);
ctx.lineTo(x, y + radius.tl);
ctx.quadraticCurveTo(x, y, x + radius.tl, y);
ctx.closePath();
if (fill) {
ctx.fill();
}
if (stroke) {
ctx.stroke();
}
}
_x000D_
<canvas id="rounded-rect" width="500" height="200">
<!-- Insert fallback content here -->
</canvas>
_x000D_
If you want to solve it in a two-liner you can do it like this:
with open('data.json') as f:
data = [json.loads(line) for line in f]
When there is a mouse click ctrlKey is event attribute which can be accessed as e.ctrlKey.
Look down for example
$("xyz").click(function(e)){
if(e.ctrlKey){
//if ctrl key is pressed
}
else{
// if ctrl key is not pressed
}
}
Use a Set
or NSOrderedSet
to remove duplicates, then convert back to an Array
:
let uniqueUnordered = Array(Set(array))
let uniqueOrdered = Array(NSOrderedSet(array: array))
https://scikit-learn.org/stable/modules/generated/sklearn.metrics.mean_squared_error.html
mean_squared_error(y_true, y_pred)
So, final code would be something like:
from sklearn.metrics import mean_squared_error from math import sqrt
RMSD = sqrt(mean_squared_error(testing_y, prediction))
print(RMSD)
Tomalak already gave you a correct answer, but I would like to add that most of the times when you would like to know the VBA code needed to do a certain action in the user interface it is a good idea to record a macro.
In this case click Record Macro on the developer tab of the Ribbon, freeze the top row and then stop recording. Excel will have the following macro recorded for you which also does the job:
With ActiveWindow
.SplitColumn = 0
.SplitRow = 1
End With
ActiveWindow.FreezePanes = True
You can use the HH command to open any website.
hh <http://url>
For example,
hh http://shuvankar.com
Though it will not open the website in the browser, but this will open the website in an HTML help window.
This is kind of Flex/BlazeDS specific, but here's the solution I've come up with. Sorry if answering my own question is a faux pas.
HttpServletRequest request = flex.messaging.FlexContext.getHttpRequest();
Cookie[] cookies = request.getCookies();
for (Cookie c:cookies)
{
log.debug(String.format("Cookie: %s, %s, domain: %s",c.getName(), c.getValue(),c.getDomain()));
}
It works, I get the cookies. My problem was looking to Spring - BlazeDS had it. Spring probably does too, but I still don't know how to get to it.
In the terminal just write : $ mongod --version
Try using:
body {
background-attachment: fixed;
background-image: url(./Images/bg4.jpg);
}
Images
being folder holding the picture that you want to post.
More compact version working with spaces and newlines in the file name:
find . -iname '*.txt' -exec sh -c 'echo "{}" ; ls -l "{}"' \;
Had the same problem when Load external without cache using Javascript
Load external <script> without cache using Javascript
Had a good solution for cache problem here:
But this happend: Uncaught TypeError: Cannot read property 'appendChild' of null.
Here is good explanation: https://stackoverflow.com/a/58824439/14491024
As it said your script tag is in the head, the JavaScript is loaded before your HTML.
In Visual Studio by C# this problem is solved like this by adding Guid:
Here is how it looks in the View page source:
Similar to accepted answer but allows use of ColumnNames and binds to RowDataBound().
Dictionary<string, int> _headerIndiciesForAbcGridView = null;
protected void abcGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (_headerIndiciesForAbcGridView == null) // builds once per http request
{
int index = 0;
_headerIndiciesForAbcGridView = ((Table)((GridView)sender).Controls[0]).Rows[0].Cells
.Cast<TableCell>()
.ToDictionary(c => c.Text, c => index++);
}
e.Row.Cells[_headerIndiciesForAbcGridView["theColumnName"]].Visible = false;
}
Not sure if it works with RowCreated().
Inserts, updates, deletes and reads are generally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn't get corrupted.
The basic answer.
The SqliteOpenHelper object holds on to one database connection. It appears to offer you a read and write connection, but it really doesn't. Call the read-only, and you'll get the write database connection regardless.
So, one helper instance, one db connection. Even if you use it from multiple threads, one connection at a time. The SqliteDatabase object uses java locks to keep access serialized. So, if 100 threads have one db instance, calls to the actual on-disk database are serialized.
So, one helper, one db connection, which is serialized in java code. One thread, 1000 threads, if you use one helper instance shared between them, all of your db access code is serial. And life is good (ish).
If you try to write to the database from actual distinct connections at the same time, one will fail. It will not wait till the first is done and then write. It will simply not write your change. Worse, if you don’t call the right version of insert/update on the SQLiteDatabase, you won’t get an exception. You’ll just get a message in your LogCat, and that will be it.
So, multiple threads? Use one helper. Period. If you KNOW only one thread will be writing, you MAY be able to use multiple connections, and your reads will be faster, but buyer beware. I haven't tested that much.
Here's a blog post with far more detail and an example app.
Gray and I are actually wrapping up an ORM tool, based off of his Ormlite, that works natively with Android database implementations, and follows the safe creation/calling structure I describe in the blog post. That should be out very soon. Take a look.
In the meantime, there is a follow up blog post:
Also checkout the fork by 2point0 of the previously mentioned locking example:
Another good method to get an integer representation from binary is to use eval()
Like so:
def getInt(binNum = 0):
return eval(eval('0b' + str(n)))
I guess this is a way to do it too. I hope this is a satisfactory answer :D
Short answer: You can't.
Long answer: You can use the INFORMATION_SCHEMA to get the table definitions and use this to generate the necessary UPDATE statements dynamically. For example you could start with this:
SELECT TABLE_NAME, COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'your_schema'
I'd try to avoid doing this though if at all possible.
Hey this is happening because u r trying to display value before assignnig it U just fill in the values and submit form it will display correct output Or u can write ur php code below form tags It ll run without any errors
Use the Font Class to set the control's font and styles.
Try Font Constructor (String, Single)
Label lab = new Label();
lab.Text ="Font Bold at 24";
lab.Font = new Font("Arial", 20);
or
lab.Font = new Font(FontFamily.GenericSansSerif,
12.0F, FontStyle.Bold);
To get installed fonts refer this - .NET System.Drawing.Font - Get Available Sizes and Styles
I had also faced same error when i was trying to call bootstrap modal from jquery. But this happens because we are using bootstrap modal and for this we need to attach one cdn bootstrap.min.js which is
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
Hope this will help as I missed that when i was trying to call bootstrap modal from jQuery using
$('#button').on('click',function(){
$('#myModal').modal();
});
myModal
is the id of Bootstrap modal
and you have to give a click event to a button when you call click that button a pop up modal will be displayed.