Step 1. In your startup, register your exception handling route:
// It should be one of your very first registrations
app.UseExceptionHandler("/error"); // Add this
app.UseEndpoints(endpoints => endpoints.MapControllers());
Step 2. Create controller that will handle all exceptions and produce error response:
[ApiExplorerSettings(IgnoreApi = true)]
public class ErrorsController : ControllerBase
{
[Route("error")]
public MyErrorResponse Error()
{
var context = HttpContext.Features.Get<IExceptionHandlerFeature>();
var exception = context.Error; // Your exception
var code = 500; // Internal Server Error by default
if (exception is MyNotFoundException) code = 404; // Not Found
else if (exception is MyUnauthException) code = 401; // Unauthorized
else if (exception is MyException) code = 400; // Bad Request
Response.StatusCode = code; // You can use HttpStatusCode enum instead
return new MyErrorResponse(exception); // Your error model
}
}
A few important notes and observations:
[ApiExplorerSettings(IgnoreApi = true)]
is needed. Otherwise, it may break your Swashbuckle swaggerapp.UseExceptionHandler("/error");
has to be one of the very top registrations in your Startup Configure(...)
method. It's probably safe to place it at the top of the method.app.UseExceptionHandler("/error")
and in controller [Route("error")]
should be the same, to allow the controller handle exceptions redirected from exception handler middleware.Microsoft documentation for this subject is not that great but has some interesting ideas. I'll just leave the link here.
Implement your own response model and exceptions. This example is just a good starting point. Every service would need to handle exceptions in its own way. But with this code, you have full flexibility and control over handling exceptions and returning a proper result to the caller.
An example of error response model (just to give you some ideas):
public class MyErrorResponse
{
public string Type { get; set; }
public string Message { get; set; }
public string StackTrace { get; set; }
public MyErrorResponse(Exception ex)
{
Type = ex.GetType().Name;
Message = ex.Message;
StackTrace = ex.ToString();
}
}
For simpler services, you might want to implement http status code exception that would look like this:
public class HttpStatusException : Exception
{
public HttpStatusCode Status { get; private set; }
public HttpStatusException(HttpStatusCode status, string msg) : base(msg)
{
Status = status;
}
}
This can be thrown like that:
throw new HttpStatusCodeException(HttpStatusCode.NotFound, "User not found");
Then your handling code could be simplified to:
if (exception is HttpStatusException httpException)
{
code = (int) httpException.Status;
}
Why so un-obvious HttpContext.Features.Get<IExceptionHandlerFeature>()
?
ASP.NET Core developers embraced the concept of middlewares where different aspects of functionality such as Auth, Mvc, Swagger etc. are separated and executed sequentially by processing the request and returning the response or passing the execution to the next middleware. With this architecture, MVC itself, for instance, would not be able to handle errors happening in Auth. So, they came up with exception handling middleware that catches all the exceptions happening in middlewares registered down in the pipeline, pushes exception data into HttpContext.Features
, and re-runs the pipeline for specified route (/error
), allowing any middleware to handle this exception, and the best way to handle it is by our Controllers to maintain proper content negotiation.
Update:
Example from Microsoft:
Original
This is how I got client certification working and checking that a specific Root CA had issued it as well as it being a specific certificate.
First I edited <src>\.vs\config\applicationhost.config
and made this change: <section name="access" overrideModeDefault="Allow" />
This allows me to edit <system.webServer>
in web.config
and add the following lines which will require a client certification in IIS Express. Note: I edited this for development purposes, do not allow overrides in production.
For production follow a guide like this to set up the IIS:
https://medium.com/@hafizmohammedg/configuring-client-certificates-on-iis-95aef4174ddb
web.config:
<security>
<access sslFlags="Ssl,SslNegotiateCert,SslRequireCert" />
</security>
API Controller:
[RequireSpecificCert]
public class ValuesController : ApiController
{
// GET api/values
public IHttpActionResult Get()
{
return Ok("It works!");
}
}
Attribute:
public class RequireSpecificCertAttribute : AuthorizationFilterAttribute
{
public override void OnAuthorization(HttpActionContext actionContext)
{
if (actionContext.Request.RequestUri.Scheme != Uri.UriSchemeHttps)
{
actionContext.Response = new HttpResponseMessage(System.Net.HttpStatusCode.Forbidden)
{
ReasonPhrase = "HTTPS Required"
};
}
else
{
X509Certificate2 cert = actionContext.Request.GetClientCertificate();
if (cert == null)
{
actionContext.Response = new HttpResponseMessage(System.Net.HttpStatusCode.Forbidden)
{
ReasonPhrase = "Client Certificate Required"
};
}
else
{
X509Chain chain = new X509Chain();
//Needed because the error "The revocation function was unable to check revocation for the certificate" happened to me otherwise
chain.ChainPolicy = new X509ChainPolicy()
{
RevocationMode = X509RevocationMode.NoCheck,
};
try
{
var chainBuilt = chain.Build(cert);
Debug.WriteLine(string.Format("Chain building status: {0}", chainBuilt));
var validCert = CheckCertificate(chain, cert);
if (chainBuilt == false || validCert == false)
{
actionContext.Response = new HttpResponseMessage(System.Net.HttpStatusCode.Forbidden)
{
ReasonPhrase = "Client Certificate not valid"
};
foreach (X509ChainStatus chainStatus in chain.ChainStatus)
{
Debug.WriteLine(string.Format("Chain error: {0} {1}", chainStatus.Status, chainStatus.StatusInformation));
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
base.OnAuthorization(actionContext);
}
}
private bool CheckCertificate(X509Chain chain, X509Certificate2 cert)
{
var rootThumbprint = WebConfigurationManager.AppSettings["rootThumbprint"].ToUpper().Replace(" ", string.Empty);
var clientThumbprint = WebConfigurationManager.AppSettings["clientThumbprint"].ToUpper().Replace(" ", string.Empty);
//Check that the certificate have been issued by a specific Root Certificate
var validRoot = chain.ChainElements.Cast<X509ChainElement>().Any(x => x.Certificate.Thumbprint.Equals(rootThumbprint, StringComparison.InvariantCultureIgnoreCase));
//Check that the certificate thumbprint matches our expected thumbprint
var validCert = cert.Thumbprint.Equals(clientThumbprint, StringComparison.InvariantCultureIgnoreCase);
return validRoot && validCert;
}
}
Can then call the API with client certification like this, tested from another web project.
[RoutePrefix("api/certificatetest")]
public class CertificateTestController : ApiController
{
public IHttpActionResult Get()
{
var handler = new WebRequestHandler();
handler.ClientCertificateOptions = ClientCertificateOption.Manual;
handler.ClientCertificates.Add(GetClientCert());
handler.UseProxy = false;
var client = new HttpClient(handler);
var result = client.GetAsync("https://localhost:44331/api/values").GetAwaiter().GetResult();
var resultString = result.Content.ReadAsStringAsync().GetAwaiter().GetResult();
return Ok(resultString);
}
private static X509Certificate GetClientCert()
{
X509Store store = null;
try
{
store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
store.Open(OpenFlags.OpenExistingOnly | OpenFlags.ReadOnly);
var certificateSerialNumber= "?81 c6 62 0a 73 c7 b1 aa 41 06 a3 ce 62 83 ae 25".ToUpper().Replace(" ", string.Empty);
//Does not work for some reason, could be culture related
//var certs = store.Certificates.Find(X509FindType.FindBySerialNumber, certificateSerialNumber, true);
//if (certs.Count == 1)
//{
// var cert = certs[0];
// return cert;
//}
var cert = store.Certificates.Cast<X509Certificate>().FirstOrDefault(x => x.GetSerialNumberString().Equals(certificateSerialNumber, StringComparison.InvariantCultureIgnoreCase));
return cert;
}
finally
{
store?.Close();
}
}
}
Try the following snippet, it should be pretty clear:
public class AuthorizeActionFilterAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(FilterExecutingContext filterContext)
{
HttpSessionStateBase session = filterContext.HttpContext.Session;
Controller controller = filterContext.Controller as Controller;
if (controller != null)
{
if (session["Login"] == null)
{
filterContext.Cancel = true;
controller.HttpContext.Response.Redirect("./Login");
}
}
base.OnActionExecuting(filterContext);
}
}
whenever you deal with spaces in filenames, use quotes
net use "m:\Server01\my folder" /USER:mynetwork\Administrator "Mypassword" /persistent:yes
"not equal"
So in this case, $RESULT
is tested to not be equal to zero.
However, the test is done numerically, not alphabetically:
n1 -ne n2 True if the integers n1 and n2 are not algebraically equal.
compared to:
s1 != s2 True if the strings s1 and s2 are not identical.
sudo gem install --no-user-install <gem-name>
will install your gem globally, i.e. it will be available to all user's contexts.
In a past project that had to support IE8+ and I achieved this using a image encoded in data-url format.
The image was 2800x1px, half of the image white, and half transparent. Worked pretty well.
body {
/* 50% right white */
background: red url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACvAAAAABAQAAAAAqT0YHAAAAAnRSTlMAAHaTzTgAAAAOSURBVHgBYxhi4P/QAgDwrK5SDPAOUwAAAABJRU5ErkJggg==) center top repeat-y;
/* 50% left white */
background: red url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACvAAAAABAQAAAAAqT0YHAAAAAnRSTlMAAHaTzTgAAAAPSURBVHgBY/g/tADD0AIAIROuUgYu7kEAAAAASUVORK5CYII=) center top repeat-y;
}
You can see it working here JsFiddle. Hope it can help someone ;)
We had the same issue, working from JS code (i.e. not from HTML anchor). This is how we solved that:
If needed, virtually alter current URL through $location
service. This might be useful if your destination is just a variation on the current URL, so that you can take advantage of $location
helper methods. E.g. we ran $location.search(..., ...)
to just change value of a querystring paramater.
Build up the new destination URL, using current $location.url()
if needed. In order to work, this new one had to include everything after schema, domain and port. So e.g. if you want to move to:
http://yourdomain.com/YourAppFolder/YourAngularApp/#/YourArea/YourAction?culture=en
then you should set URL as in:
var destinationUrl = '/YourAppFolder/YourAngularApp/#/YourArea/YourAction?culture=en';
(with the leading '/'
as well).
Assign new destination URL at low-level: $window.location.href = destinationUrl;
Force reload, still at low-level: $window.location.reload();
If you're changing the layout of an existing ImageView, you should be able to simply get the current LayoutParams, change the width/height, and set it back:
android.view.ViewGroup.LayoutParams layoutParams = myImageView.getLayoutParams();
layoutParams.width = 30;
layoutParams.height = 30;
myImageView.setLayoutParams(layoutParams);
I don't know if that's your goal, but if it is, this is probably the easiest solution.
The answer from brad.v is incorrect! It won't give you a concatenated string.
Here's the correct code, almost like brad.v's but with one important change:
DECLARE @results VarChar(1000)
SELECT @results = CASE
WHEN @results IS NULL THEN CONVERT( VarChar(20), [StudentId])
ELSE @results + ', ' + CONVERT( VarChar(20), [StudentId])
END
FROM Student WHERE condition = abc;
See the difference? :) brad.v please fix your answer, I can't do anything to correct it or comment on it 'cause my reputation here is zero. I guess I can remove mine after you fix yours. Thanks!
Width 100% : It will make content with 100%. margin, border, padding will be added to this width and element will overflow if any of these added.
Width auto : It will fit the element in available space including margin, border and padding. space remaining after adjusting margin + padding + border will be available width/ height.
Width 100% + box-sizing: border box : It will also fits the element in available space including border, padding (margin will make it overflow the container).
You enter the
if (!(cin >> input_var))
statement if an error occurs when taking the input from cin. If an error occurs then an error flag is set and future attempts to get input will fail. That's why you need
cin.clear();
to get rid of the error flag. Also, the input which failed will be sitting in what I assume is some sort of buffer. When you try to get input again, it will read the same input in the buffer and it will fail again. That's why you need
cin.ignore(10000,'\n');
It takes out 10000 characters from the buffer but stops if it encounters a newline (\n). The 10000 is just a generic large value.
In the windows when we open jupyter notebook in command prompt we can see the instructions in first 10 lines in that there is one instruction- "to open notebook, open this file in browser file://C:/Users/{username}/appdata/roaming/jupyetr/runtime/nbserver-xywz-open.html " , open this html with browser of your choice.
From this post:
To get the entire PC CPU and Memory usage:
using System.Diagnostics;
Then declare globally:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Processor", "% Processor Time", "_Total");
Then to get the CPU time, simply call the NextValue()
method:
this.theCPUCounter.NextValue();
This will get you the CPU usage
As for memory usage, same thing applies I believe:
private PerformanceCounter theMemCounter =
new PerformanceCounter("Memory", "Available MBytes");
Then to get the memory usage, simply call the NextValue()
method:
this.theMemCounter.NextValue();
For a specific process CPU and Memory usage:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Process", "% Processor Time",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
private PerformanceCounter theMemCounter =
new PerformanceCounter("Process", "Working Set",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
Note that Working Set may not be sufficient in its own right to determine the process' memory footprint -- see What is private bytes, virtual bytes, working set?
To retrieve all Categories, see Walkthrough: Retrieving Categories and Counters
The difference between Processor\% Processor Time
and Process\% Processor Time
is Processor
is from the PC itself and Process
is per individual process. So the processor time of the processor would be usage on the PC. Processor time of a process would be the specified processes usage. For full description of category names: Performance Monitor Counters
An alternative to using the Performance Counter
Use System.Diagnostics.Process.TotalProcessorTime and System.Diagnostics.ProcessThread.TotalProcessorTime properties to calculate your processor usage as this article describes.
Because $newDate
is an object of type DateTime
, not a string. The documentation is explicit:
Returns new
DateTime
object formatted according to the specified format.
If you want to convert from a string to DateTime
back to string to change the format, call DateTime::format
at the end to get a formatted string out of your DateTime
.
$newDate = DateTime::createFromFormat("l dS F Y", $dateFromDB);
$newDate = $newDate->format('d/m/Y'); // for example
The other way to tackle it is to use this code snippet:
JSON.parse(JSON.stringify(response)).data
This feels so wrong but it works
Apparently a long time ago somebody already decided to try to add the following function to the official scikit's tree export functions (which basically only supports export_graphviz)
def export_dict(tree, feature_names=None, max_depth=None) :
"""Export a decision tree in dict format.
Here is his full commit:
Not exactly sure what happened to this comment. But you could also try to use that function.
I think this warrants a serious documentation request to the good people of scikit-learn to properly document the sklearn.tree.Tree
API which is the underlying tree structure that DecisionTreeClassifier
exposes as its attribute tree_
.
In config/database.php
I changed the default DB connection from mysql to sqlite. I deleted the .env
file (actually renamed it) and created the sqlite file with touch storage/database.sqlite
. The migration worked with sqlite.
Then I switched back the config/database.php
default DB connection to mysql and recovered the .env
file. The migration worked with mysql.
It doesn't make sense I guess. Maybe was something serverside.
Try this:
const strippedString = htmlString.replace(/(<([^>]+)>)/gi, "");
console.log(strippedString);
For those who use NSwag and need a custom header:
app.UseSwaggerUi3(typeof(Startup).GetTypeInfo().Assembly, settings =>
{
settings.GeneratorSettings.IsAspNetCore = true;
settings.GeneratorSettings.OperationProcessors.Add(new OperationSecurityScopeProcessor("custom-auth"));
settings.GeneratorSettings.DocumentProcessors.Add(
new SecurityDefinitionAppender("custom-auth", new SwaggerSecurityScheme
{
Type = SwaggerSecuritySchemeType.ApiKey,
Name = "header-name",
Description = "header description",
In = SwaggerSecurityApiKeyLocation.Header
}));
});
}
Swagger UI will then include an Authorize button.
A referral is sent by an AD server when it doesn't have the information requested itself, but know that another server have the info. It usually appears in trust environment where a DC can refer to a DC in trusted domain.
In your case you are only specifying a domain, relying on automatic lookup of what domain controller to use. I think that you should try to find out what domain controller is used for the query and look if that one really holds the requested information.
If you provide more information on your AD setup, including any trusts/subdomains, global catalogues and the DNS resource records for the domain controllers it will be easier to help you.
I'd recommend gRaphaël for pure JavaScript charting along with the pure JavaScript vector graphics library it's built on (Raphaël).
gRaphaël currently supports Firefox 3.0+, Safari 3.0+, Opera 9.5+ and Internet Explorer 6.0+.
Pyhton3: Most of the solutions listed previously work. However, there are instances when row_number of the dataframe is not required and the each row (record) has to be written individually.
The following method is useful in that case.
import csv
my file= 'C:\Users\John\Desktop\export_dataframe.csv'
records_to_save = data2 #used as in the thread.
colnames = list[records_to_save[0].keys()]
# remember colnames is a list of all keys. All values are written corresponding
# to the keys and "None" is specified in case of missing value
with open(myfile, 'w', newline="",encoding="utf-8") as f:
writer = csv.writer(f)
writer.writerow(colnames)
for d in records_to_save:
writer.writerow([d.get(r, "None") for r in colnames])
What worked for me was to:
..\packages
to ..\..\..\packages
since I moved the project to a deeper folder.just use a jquery event listner , click event. let the class of the link is lb... i am considering body as a div as you said...
$('.lb').click(function() {
$('#body1').show();
$('#body').hide();
});
Your browser's default font-family will be inherited for that case.
You can check the browser default font in chrome: Settings > Web content > Customize fonts...
This refreshes the calculation better than Range(A:B).Calculate
:
Public Sub UpdateMyFunctions()
Dim myRange As Range
Dim rng As Range
' Assume the functions are in this range A1:B10.
Set myRange = ActiveSheet.Range("A1:B10")
For Each rng In myRange
rng.Formula = rng.Formula
Next
End Sub
LocalDate date=LocalDate.now();
System.out.println(date.getDayOfWeek());//prints THURSDAY
System.out.println(date.getDayOfWeek().getDisplayName(TextStyle.SHORT, Locale.US) ); //prints Thu
java.time.DayOfWeek is a enum which returns the singleton instance for the day-of-week of the weekday of the date.
adding this code to my .profile worked for me: :/usr/local/mysql/bin
Thanks.
P.S This .profile is located in your user/ path. Its a hidden file so you will have to get to it either by a command in Terminal or using an html editor.
You can always use an alias:
alias next='printf "blah_%02d" $count;count=$((count+1))'
In typescript it is possible to do an instanceof
check in an if statement and you will have access to the same variable with the Typed
properties.
So let's say MarkerSymbolInfo
has a property on it called marker
. You can do the following:
if (symbolInfo instanceof MarkerSymbol) {
// access .marker here
const marker = symbolInfo.marker
}
It's a nice little trick to get the instance of a variable using the same variable without needing to reassign it to a different variable name.
Check out these two resources for more information:
A different user name is the common cause for this, Nuget downloads everything into: "C:\Users\USER_NAME\source\repos"
and if you had the project previously setup on a different user name the .csproj file may still contain that old user name there, simply open it and do a search replace for "C:\Users\_OLD_USER_NAME\source\repos"
to "C:\Users\NEW_USER_NAME\source\repos"
.
You can also specify a dependency not in a maven repository. Could be usefull when no central maven repository for your team exist or if you have a CI server
<dependency>
<groupId>com.stackoverflow</groupId>
<artifactId>commons-utils</artifactId>
<version>1.3</version>
<scope>system</scope>
<systemPath>${basedir}/lib/commons-utils.jar</systemPath>
</dependency>
def updateJsonFile():
jsonFile = open("replayScript.json", "r") # Open the JSON file for reading
data = json.load(jsonFile) # Read the JSON into the buffer
jsonFile.close() # Close the JSON file
## Working with buffered content
tmp = data["location"]
data["location"] = path
data["mode"] = "replay"
## Save our changes to JSON file
jsonFile = open("replayScript.json", "w+")
jsonFile.write(json.dumps(data))
jsonFile.close()
The following approach is correct:
<context:component-scan base-package="x.y.z.service, x.y.z.controller" />
Note that the error complains about x.y.z.dao.daoservice.LoginDAO
, which is not in the packages mentioned above, perhaps you forgot to add it:
<context:component-scan base-package="x.y.z.service, x.y.z.controller, x.y.z.dao" />
UPDATE
Adding the CSS property elevation: 1
renders shadow in Android without installing any 3rd party library — see the other answers.
One way to get shadows for android is to install react-native-shadow
.
Example (adapted from the readme):
import React, { Component } from "react";
import { TouchableHighlight } from "react-native";
import { BoxShadow } from "react-native-shadow";
export default class ShadowButton extends Component {
render() {
const shadowOpt = {
width: 160,
height: 170,
color: "#000",
border: 2,
radius: 3,
opacity: 0.2,
x: 0,
y: 3,
style: { marginVertical: 5 }
};
return (
<BoxShadow setting={shadowOpt}>
<TouchableHighlight
style={{
position: "relative",
width: 160,
height: 170,
backgroundColor: "#fff",
borderRadius: 3,
// marginVertical: 5,
overflow: "hidden"
}}
>
...
</TouchableHighlight>
</BoxShadow>
);
}
}
Works for me, has nothing to do with PHP 5.3. Just like many such options it cannot be overriden via ini_set()
when safe_mode is enabled. Check your updated php.ini
(and better yet: change the memory_limit there too).
You can kill all node processes using pkill node
or you can do a ps T
to see all processes on this terminal
then you can kill a specific process ID doing a kill [processID]
example: kill 24491
Additionally, you can do a ps -help
to see all the available options
Method if anyone wants to replace all occurrences of the key in a multi-level dictionary.
Function checks if the dictionary has a specific key and then iterates over sub-dictionaries and invokes the function recursively:
def update_keys(old_key,new_key,d):
if isinstance(d,dict):
if old_key in d:
d[new_key] = d[old_key]
del d[old_key]
for key in d:
updateKey(old_key,new_key,d[key])
update_keys('old','new',dictionary)
Why would we want to check if an array is empty
? Arrays don't grow or shrink in the same that lists do. Starting with a 'empty' array, and growing with np.append
is a frequent novice error.
Using a list in if alist:
hinges on its boolean value:
In [102]: bool([])
Out[102]: False
In [103]: bool([1])
Out[103]: True
But trying to do the same with an array produces (in version 1.18):
In [104]: bool(np.array([]))
/usr/local/bin/ipython3:1: DeprecationWarning: The truth value
of an empty array is ambiguous. Returning False, but in
future this will result in an error. Use `array.size > 0` to
check that an array is not empty.
#!/usr/bin/python3
Out[104]: False
In [105]: bool(np.array([1]))
Out[105]: True
and bool(np.array([1,2])
produces the infamous ambiguity error.
The accepted answer suggests size
:
In [11]: x = np.array([])
In [12]: x.size
Out[12]: 0
But I (and most others) check the shape
more than the size
:
In [13]: x.shape
Out[13]: (0,)
Another thing in its favor is that it 'maps' on to an empty
list:
In [14]: x.tolist()
Out[14]: []
But there are other other arrays with 0 size
, that aren't 'empty' in that last sense:
In [15]: x = np.array([[]])
In [16]: x.size
Out[16]: 0
In [17]: x.shape
Out[17]: (1, 0)
In [18]: x.tolist()
Out[18]: [[]]
In [19]: bool(x.tolist())
Out[19]: True
np.array([[],[]])
is also size 0, but shape (2,0) and len
2.
While the concept of an empty
list is well defined, an empty array
is not well defined. One empty list is equal to another. The same can't be said for a size 0
array.
The answer really depends on
$ git config credential.helper store
$ git push/push https://github.com/xxx.git
Then enter your user name and password.
In the AndroidManifest.xml, under the application tag, you can set the theme of your choice. To customize the theme, press Ctrl + Click
on android:theme = "@style/AppTheme"
in the Android manifest file. It will open styles.xml
file where you can change the parent attribute of the style tag.
At parent=
in styles.xml
you can browse all available styles by using auto-complete inside the ""
. E.g. try parent="Theme."
with your cursor right after the .
and then pressing Ctrl + Space
.
You can also preview themes in the preview window in Android Studio.
Python 3.9 adds the zoneinfo
module so now only the standard library is needed!
from zoneinfo import ZoneInfo
from datetime import datetime
unaware = datetime(2020, 10, 31, 12)
Attach a timezone:
>>> unaware.replace(tzinfo=ZoneInfo('Asia/Tokyo'))
datetime.datetime(2020, 10, 31, 12, 0, tzinfo=zoneinfo.ZoneInfo(key='Asia/Tokyo'))
>>> str(_)
'2020-10-31 12:00:00+09:00'
Attach the system's local timezone:
>>> unaware.replace(tzinfo=ZoneInfo('localtime'))
datetime.datetime(2020, 10, 31, 12, 0, tzinfo=zoneinfo.ZoneInfo(key='localtime'))
>>> str(_)
'2020-10-31 12:00:00+01:00'
Subsequently it is properly converted to other timezones:
>>> unaware.replace(tzinfo=ZoneInfo('localtime')).astimezone(ZoneInfo('Asia/Tokyo'))
datetime.datetime(2020, 10, 31, 20, 0, tzinfo=backports.zoneinfo.ZoneInfo(key='Asia/Tokyo'))
>>> str(_)
'2020-10-31 20:00:00+09:00'
Wikipedia list of available time zones
Windows has no system time zone database, so here an extra package is needed:
pip install tzdata
There is a backport to allow use of zoneinfo
in Python 3.6 to 3.8:
pip install backports.zoneinfo
Then:
from backports.zoneinfo import ZoneInfo
You need to set the thumbnail class to position relative then the post-content to absolute.
Check this fiddle
.post-content {
top:0;
left:0;
position: absolute;
}
.thumbnail{
position:relative;
}
Giving it top and left 0 will make it appear in the top left corner.
In my case, just changingTarget JVM Version like this: File > Setting > Kotlin Compiler > Target JVM Version > 1.8 did not help. However, it does resolved compile time error. But failed at runtime.
I also had to add following in app build.gradle file to make it work.
android {
// Other code here...
kotlinOptions {
jvmTarget = "1.8"
}
}
Easy approach:
CREATE TABLE T
(
C [nvarchar](100) NOT NULL UNIQUE,
);
SET XACT_ABORT ON -- Turns on rollback if T-SQL statement raises a run-time error.
SELECT * FROM T; -- Check before.
BEGIN TRAN
INSERT INTO T VALUES ('A');
INSERT INTO T VALUES ('B');
INSERT INTO T VALUES ('B');
INSERT INTO T VALUES ('C');
COMMIT TRAN
SELECT * FROM T; -- Check after.
DELETE T;
listOfStuff =([a,b], [c,d], [e,f], [f,g])
for item in listOfStuff[1:3]:
print item
You have to iterate over a slice of your tuple. The 1
is the first element you need and 3
(actually 2+1) is the first element you don't need.
Elements in a list are numerated from 0:
listOfStuff =([a,b], [c,d], [e,f], [f,g])
0 1 2 3
[1:3]
takes elements 1 and 2.
It's caused by the DOS/Windows line-ending characters. Like Andy Whitfield said, the Unix command dos2unix will help fix the problem. If you want more information, you can read the man pages for that command.
Use <div contenteditable="true">
(supported well) with storing to <input type="hidden">
.
HTML:
<div id="multilineinput" contenteditable="true"></div>
<input type="hidden" id="detailsfield" name="detailsfield">
js (using jQuery)
$("#multilineinput").on('keyup',function(e) {
$("#detailsfield").val($(this).text()); //store content to input[type=hidden]
});
//optional - one line but wrap it
$("#multilineinput").on('keypress',function(e) {
if(e.which == 13) { //on enter
e.preventDefault(); //disallow newlines
// here comes your code to submit
}
});
With Groovy, you can leverage Ant to do:
new AntBuilder().copy( todir:'/path/to/destination/folder' ) {
fileset( dir:'/path/to/src/folder' )
}
AntBuilder is part of the distribution and the automatic imports list which means it is directly available for any groovy code.
You wrote asp.net - are you looking to upload a file?
if so you can use the html
<input type="file" ...
I wrote a JavaScript analogue of a PHP function number_format on a base of Abe Miessler addCommas function. Could be usefull.
number_format = function (number, decimals, dec_point, thousands_sep) {
number = number.toFixed(decimals);
var nstr = number.toString();
nstr += '';
x = nstr.split('.');
x1 = x[0];
x2 = x.length > 1 ? dec_point + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1))
x1 = x1.replace(rgx, '$1' + thousands_sep + '$2');
return x1 + x2;
}
For example:
var some_number = number_format(42661.55556, 2, ',', ' '); //gives 42 661,56
string constr = @"Data Source=(LocalDB)\v11.0;Initial Catalog=Bank;Integrated Security=True;Pooling=False";
SqlConnection con = new SqlConnection(constr);
DataSet ds = new DataSet();
con.Open();
SqlCommand cmd = new SqlCommand(" UPDATE Account SET name = Aleesha, CID = 24 Where name =Areeba and CID =11 )";
cmd.ExecuteNonQuery();
By dynamically allocating a Movie object with new Movie()
, you get a pointer to the new object. You do not need a second vector for the movies, just store the pointers and you can access them. Like Brian wrote, the vector would be defined as
std::vector<Movie *> movies
But be aware that the vector will not delete your objects afterwards, which will result in a memory leak. It probably doesn't matter for your homework, but normally you should delete all pointers when you don't need them anymore.
In short:
Are you just looking to verify that the file is of a given extension? You can simplify what you are trying to do with something like this:
(.*?)\.(jpg|gif|doc|pdf)$
Then, when you call IsMatch() make sure to pass RegexOptions.IgnoreCase as your second parameter. There is no reason to have to list out the variations for casing.
Edit: As Dario mentions, this is not going to work for the RegularExpressionValidator, as it does not support casing options.
This is a very nice and clean example:(check this great tutorial for a full explanation link)
public static IEnumerable<SelectListItem> ToSelectListItems(
this IEnumerable<Album> albums, int selectedId)
{
return
albums.OrderBy(album => album.Name)
.Select(album =>
new SelectListItem
{
Selected = (album.ID == selectedId),
Text = album.Name,
Value = album.ID.ToString()
});
}
In this MSDN link you can read de DropDownList
method documentation.
Hope it helps.
I recently had the requirement to use JNDI with an embedded Tomcat in Spring Boot.
Actual answers give some interesting hints to solve my task but it was not enough as probably not updated for Spring Boot 2.
Here is my contribution tested with Spring Boot 2.0.3.RELEASE.
Specifying a datasource available in the classpath at runtime
You have multiple choices :
If you don't specify anyone of them, with the default configuration the instantiation of the datasource will throw an exception :
Caused by: javax.naming.NamingException: Could not create resource factory instance at org.apache.naming.factory.ResourceFactory.getDefaultFactory(ResourceFactory.java:50) at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:90) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321) at org.apache.naming.NamingContext.lookup(NamingContext.java:839) at org.apache.naming.NamingContext.lookup(NamingContext.java:159) at org.apache.naming.NamingContext.lookup(NamingContext.java:827) at org.apache.naming.NamingContext.lookup(NamingContext.java:159) at org.apache.naming.NamingContext.lookup(NamingContext.java:827) at org.apache.naming.NamingContext.lookup(NamingContext.java:159) at org.apache.naming.NamingContext.lookup(NamingContext.java:827) at org.apache.naming.NamingContext.lookup(NamingContext.java:173) at org.apache.naming.SelectorContext.lookup(SelectorContext.java:163) at javax.naming.InitialContext.lookup(InitialContext.java:417) at org.springframework.jndi.JndiTemplate.lambda$lookup$0(JndiTemplate.java:156) at org.springframework.jndi.JndiTemplate.execute(JndiTemplate.java:91) at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:156) at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:178) at org.springframework.jndi.JndiLocatorSupport.lookup(JndiLocatorSupport.java:96) at org.springframework.jndi.JndiObjectLocator.lookup(JndiObjectLocator.java:114) at org.springframework.jndi.JndiObjectTargetSource.getTarget(JndiObjectTargetSource.java:140) ... 39 common frames omitted Caused by: java.lang.ClassNotFoundException: org.apache.tomcat.dbcp.dbcp2.BasicDataSourceFactory at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.naming.factory.ResourceFactory.getDefaultFactory(ResourceFactory.java:47) ... 58 common frames omitted
To use Apache JDBC datasource, you don't need to add any dependency but you have to change the default factory class to org.apache.tomcat.jdbc.pool.DataSourceFactory
.
You can do it in the resource declaration :
resource.setProperty("factory", "org.apache.tomcat.jdbc.pool.DataSourceFactory");
I will explain below where add this line.
To use DBCP 2 datasource a dependency is required:
<dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-dbcp</artifactId> <version>8.5.4</version> </dependency>
Of course, adapt the artifact version according to your Spring Boot Tomcat embedded version.
To use HikariCP, add the required dependency if not already present in your configuration (it may be if you rely on persistence starters of Spring Boot) such as :
<dependency> <groupId>com.zaxxer</groupId> <artifactId>HikariCP</artifactId> <version>3.1.0</version> </dependency>
and specify the factory that goes with in the resource declaration:
resource.setProperty("factory", "com.zaxxer.hikari.HikariJNDIFactory");
Datasource configuration/declaration
You have to customize the bean that creates the TomcatServletWebServerFactory
instance.
Two things to do :
enabling the JNDI naming which is disabled by default
creating and add the JNDI resource(s) in the server context
For example with PostgreSQL and a DBCP 2 datasource, do that :
@Bean
public TomcatServletWebServerFactory tomcatFactory() {
return new TomcatServletWebServerFactory() {
@Override
protected TomcatWebServer getTomcatWebServer(org.apache.catalina.startup.Tomcat tomcat) {
tomcat.enableNaming();
return super.getTomcatWebServer(tomcat);
}
@Override
protected void postProcessContext(Context context) {
// context
ContextResource resource = new ContextResource();
resource.setName("jdbc/myJndiResource");
resource.setType(DataSource.class.getName());
resource.setProperty("driverClassName", "org.postgresql.Driver");
resource.setProperty("url", "jdbc:postgresql://hostname:port/dbname");
resource.setProperty("username", "username");
resource.setProperty("password", "password");
context.getNamingResources()
.addResource(resource);
}
};
}
Here the variants for Tomcat JDBC and HikariCP datasource.
In postProcessContext()
set the factory property as explained early for Tomcat JDBC ds :
@Override
protected void postProcessContext(Context context) {
ContextResource resource = new ContextResource();
//...
resource.setProperty("factory", "org.apache.tomcat.jdbc.pool.DataSourceFactory");
//...
context.getNamingResources()
.addResource(resource);
}
};
and for HikariCP :
@Override
protected void postProcessContext(Context context) {
ContextResource resource = new ContextResource();
//...
resource.setProperty("factory", "com.zaxxer.hikari.HikariDataSource");
//...
context.getNamingResources()
.addResource(resource);
}
};
Using/Injecting the datasource
You should now be able to lookup the JNDI ressource anywhere by using a standard InitialContext
instance :
InitialContext initialContext = new InitialContext();
DataSource datasource = (DataSource) initialContext.lookup("java:comp/env/jdbc/myJndiResource");
You can also use JndiObjectFactoryBean
of Spring to lookup up the resource :
JndiObjectFactoryBean bean = new JndiObjectFactoryBean();
bean.setJndiName("java:comp/env/jdbc/myJndiResource");
bean.afterPropertiesSet();
DataSource object = (DataSource) bean.getObject();
To take advantage of the DI container you can also make the DataSource
a Spring bean :
@Bean(destroyMethod = "")
public DataSource jndiDataSource() throws IllegalArgumentException, NamingException {
JndiObjectFactoryBean bean = new JndiObjectFactoryBean();
bean.setJndiName("java:comp/env/jdbc/myJndiResource");
bean.afterPropertiesSet();
return (DataSource) bean.getObject();
}
And so you can now inject the DataSource in any Spring beans such as :
@Autowired
private DataSource jndiDataSource;
Note that many examples on the internet seem to disable the lookup of the JNDI resource on startup :
bean.setJndiName("java:comp/env/jdbc/myJndiResource");
bean.setProxyInterface(DataSource.class);
bean.setLookupOnStartup(false);
bean.afterPropertiesSet();
But I think that it is helpless as it invokes just after afterPropertiesSet()
that does the lookup !
I found this. Using:
galleryIntent.setType("image/*");
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
for one of the intents shows the user the option of selecting 'documents' in Android 4, which I found very confusing. Using this instead shows the 'gallery' option:
Intent pickIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
you need to convert to char first because converting to int adds those days to 1900-01-01
select CONVERT (datetime,convert(char(8),rnwl_efctv_dt ))
here are some examples
select CONVERT (datetime,5)
1900-01-06 00:00:00.000
select CONVERT (datetime,20100101)
blows up, because you can't add 20100101 days to 1900-01-01..you go above the limit
convert to char first
declare @i int
select @i = 20100101
select CONVERT (datetime,convert(char(8),@i))
I think the best ranking is
1.node-schedule
2.later
3.crontab
and the sample of node-schedule is below:
var schedule = require("node-schedule");
var rule = new schedule.RecurrenceRule();
//rule.minute = 40;
rule.second = 10;
var jj = schedule.scheduleJob(rule, function(){
console.log("execute jj");
});
Maybe you can find the answer from node modules.
If you do not have the pandas and sqlalchemy libraries, import using pip
pip install pandas
pip install sqlalchemy
We can use pandas and sqlalchemy to directly insert into the database
import csv
import pandas as pd
from sqlalchemy import create_engine, types
engine = create_engine('mysql://root:*Enter password here*@localhost/*Enter Databse name here*') # enter your password and database names here
df = pd.read_csv("Excel_file_name.csv",sep=',',quotechar='\'',encoding='utf8') # Replace Excel_file_name with your excel sheet name
df.to_sql('Table_name',con=engine,index=False,if_exists='append') # Replace Table_name with your sql table name
UPDATE R
SET R.status = '0'
FROM dbo.ProductReviews AS R
INNER JOIN dbo.products AS P
ON R.pid = P.id
WHERE R.id = '17190'
AND P.shopkeeper = '89137';
I am quite late but any user searching for this can get help from it. Inside the options you can pass a new parameter called chartArea.
var options = {
chartArea:{left:10,top:20,width:"100%",height:"100%"}
};
Left and top options will define the amount of padding from left and top. Hope this will help.
If anyone came here trying to do this with a decimal like me:
myFloat = parseFloat(myString);
If you just need an Int, that's well covered in the other answers.
Your question almost spells the SQL for this:
DELETE FROM table WHERE id IN (1, 4, 6, 7)
Use nth-child, for example: http://www.w3schools.com/cssref/sel_nth-child.asp
driver.find_element(By.CSS_SELECTOR, 'p.content:nth-child(1)')
or http://www.w3schools.com/cssref/sel_firstchild.asp
driver.find_element(By.CSS_SELECTOR, 'p.content:first-child')
I created a simple plugin for YAML settings: Yettings
It works in a similar fashion to the code in khelll's answer, but you only need to add this YAML configuration file:
app/config/yetting.yml
The plugin dynamically creates a class that allows you to access the YML settings as class methods in your app like so:
Yetting.your_setting
Also, if you want to use multiple settings files with unique names, you can place them in a subdirectory inside app/config like this:
app/config/yettings/first.yml
app/config/yettings/second.yml
Then you can access the values like this:
FirstYetting.your_setting
SecondYetting.your_setting
It also provides you with default settings that can be overridden per environment. You can also use erb inside the yml file.
float: right
to.. float the second column to the.. right.overflow: hidden
to clear the floats so that the background color I just put in will be visible.#wrapper{
background:#000;
overflow: hidden
}
#c1 {
float:left;
background:red;
}
#c2 {
background:green;
float: right
}
Because the dot is inside character class (square brackets []
).
Take a look at http://www.regular-expressions.info/reference.html, it says (under char class section):
Any character except ^-]\ add that character to the possible matches for the character class.
Linked lists provide very fast insertion or deletion of a list member. Each member in a linked list contains a pointer to the next member in the list so to insert a member at position i:
The disadvantage to a linked list is that random access is not possible. Accessing a member requires traversing the list until the desired member is found.
Why not just have the parent wait for the child to close. This is more than you need.
// Execute child process
System.Diagnostics.Process proc =
System.Diagnostics.Process.Start("notepad.exe");
proc.WaitForExit();
You will probably get an UAC prompt when importing the reg file. If you accept that, you have more rights.
Since you are writing to the 'policies' key, you need to have elevated rights. This part of the registry protected, because it contains settings that are administered by your system administrator.
Alternatively, you may try to run regedit.exe
from the command prompt.
regedit.exe /S yourfile.reg
.. should silently import the reg file. See RegEdit Command Line Options Syntax for more command line options.
if (!Array.prototype.forEach)
{
Object.defineProperty(Array.prototype, 'forEach',
{
enumerable: false,
value: function(callback)
{
for(var index = 0; index != this.length; index++) { callback(this[index], index, this); }
}
});
}
if(Object.observe)
{
Object.defineProperty(Array.prototype, 'Observe',
{
set: function(callback)
{
Object.observe(this, function(changes)
{
changes.forEach(function(change)
{
if(change.type == 'update') { callback(); }
});
});
}
});
}
else
{
Object.defineProperties(Array.prototype,
{
onchange: { enumerable: false, writable: true, value: function() { } },
Observe:
{
set: function(callback)
{
Object.defineProperty(this, 'onchange', { enumerable: false, writable: true, value: callback });
}
}
});
var names = ['push', 'pop', 'reverse', 'shift', 'unshift'];
names.forEach(function(name)
{
if(!(name in Array.prototype)) { return; }
var pointer = Array.prototype[name];
Array.prototype[name] = function()
{
pointer.apply(this, arguments);
this.onchange();
}
});
}
var a = [1, 2, 3];
a.Observe = function() { console.log("Array changed!"); };
a.push(8);
Corner case:
If you're using Scala and you try to create an any
matcher on a value class, you'll get an unhelpful NPE.
So given case class ValueClass(value: Int) extends AnyVal
, what you want to do is ValueClass(anyInt)
instead of any[ValueClass]
when(mock.someMethod(ValueClass(anyInt))).thenAnswer {
...
val v = ValueClass(invocation.getArguments()(0).asInstanceOf[Int])
...
}
This other SO question is more specifically about that, but you'd miss it when you don't know the issue is with value classes.
To round a number to a resolution, the best way is the following one, which can work with any resolution (0.01 for two decimals or even other steps):
>>> import numpy as np
>>> value = 13.949999999999999
>>> resolution = 0.01
>>> newValue = int(np.round(value/resolution))*resolution
>>> print newValue
13.95
>>> resolution = 0.5
>>> newValue = int(np.round(value/resolution))*resolution
>>> print newValue
14.0
I had this same problem with this part of my code:
const newComment = {
dishId: dishId,
rating: rating,
author: author,
comment: comment
};
newComment.date = new Date().toISOString();
Same error, const is a reserved word.
The thing is, I made the .eslintrc.js from the link you gave in the update and still got the same error. Also, I get an parsing error in the .eslintrc.js
: Unexpected token ':'
.
Right in this part:
"env": {
"browser": true,
"node": true,
"es6": true
},
...
Using management studio the procedure can be done as follows
You'll need to specify the WITH REPLACE option to overwrite the existing adventure_second database with a backup taken from a different database.
Click option menu and tick Overwrite the existing database(With replace)
When you add a click event, this
returns the element that has been clicked. So you can just use this.id
;
$(".test").click(function(){
alert(this.id);
});
Example: http://jsfiddle.net/jonathon/rfbrp/
There's no way to actively detect if there's a zoom. I found a good entry here on how you can attempt to implement it.
I’ve found two ways of detecting the zoom level. One way to detect zoom level changes relies on the fact that percentage values are not zoomed. A percentage value is relative to the viewport width, and thus unaffected by page zoom. If you insert two elements, one with a position in percentages, and one with the same position in pixels, they’ll move apart when the page is zoomed. Find the ratio between the positions of both elements and you’ve got the zoom level. See test case. http://web.archive.org/web/20080723161031/http://novemberborn.net/javascript/page-zoom-ff3
You could also do it using the tools of the above post. The problem is you're more or less making educated guesses on whether or not the page has zoomed. This will work better in some browsers than other.
There's no way to tell if the page is zoomed if they load your page while zoomed.
The C++ concept of a lambda function originates in the lambda calculus and functional programming. A lambda is an unnamed function that is useful (in actual programming, not theory) for short snippets of code that are impossible to reuse and are not worth naming.
In C++ a lambda function is defined like this
[]() { } // barebone lambda
or in all its glory
[]() mutable -> T { } // T is the return type, still lacking throw()
[]
is the capture list, ()
the argument list and {}
the function body.
The capture list defines what from the outside of the lambda should be available inside the function body and how. It can be either:
You can mix any of the above in a comma separated list [x, &y]
.
The argument list is the same as in any other C++ function.
The code that will be executed when the lambda is actually called.
If a lambda has only one return statement, the return type can be omitted and has the implicit type of decltype(return_statement)
.
If a lambda is marked mutable (e.g. []() mutable { }
) it is allowed to mutate the values that have been captured by value.
The library defined by the ISO standard benefits heavily from lambdas and raises the usability several bars as now users don't have to clutter their code with small functors in some accessible scope.
In C++14 lambdas have been extended by various proposals.
An element of the capture list can now be initialized with =
. This allows renaming of variables and to capture by moving. An example taken from the standard:
int x = 4;
auto y = [&r = x, x = x+1]()->int {
r += 2;
return x+2;
}(); // Updates ::x to 6, and initializes y to 7.
and one taken from Wikipedia showing how to capture with std::move
:
auto ptr = std::make_unique<int>(10); // See below for std::make_unique
auto lambda = [ptr = std::move(ptr)] {return *ptr;};
Lambdas can now be generic (auto
would be equivalent to T
here if
T
were a type template argument somewhere in the surrounding scope):
auto lambda = [](auto x, auto y) {return x + y;};
C++14 allows deduced return types for every function and does not restrict it to functions of the form return expression;
. This is also extended to lambdas.
Add the -l flag in top of your bash script i.e.
#!/usr/bin/env bash -l
...
export NAME1="VALUE1"
export NAME2="VALUE2"
The values with NAME1
and NAME2
will now have been exported to your current environment, however these changes are not permanent. If you want them to be permanent you need to add them to your .bashrc
file or other init file.
From the man pages:
-l Make bash act as if it had been invoked as a login shell (see INVOCATION below).
This is how you can read data from .csv
file using OLEDB
provider.
If OpenFileDialog1.ShowDialog(Me) = DialogResult.OK Then
Try
Dim fi As New FileInfo(OpenFileDialog1.FileName)
Dim sConnectionStringz As String = "Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Text;Data Source=" & fi.DirectoryName
Dim objConn As New OleDbConnection(sConnectionStringz)
objConn.Open()
'DataGridView1.TabIndex = 1
Dim objCmdSelect As New OleDbCommand("SELECT * FROM " & fi.Name, objConn)
Dim objAdapter1 As New OleDbDataAdapter
objAdapter1.SelectCommand = objCmdSelect
Dim objDataset1 As New DataSet
objAdapter1.Fill(objDataset1)
'--objAdapter1.Update(objDataset1) '--updating
DataGridView1.DataSource = objDataset1.Tables(0).DefaultView
Catch ex as Exception
MsgBox("Error: " + ex.Message)
Finally
objConn.Close()
End Try
End If
The simple way to get a date x days in the future is to increment the date:
function addDays(dateObj, numDays) {
return dateObj.setDate(dateObj.getDate() + numDays);
}
Note that this modifies the supplied date object, e.g.
function addDays(dateObj, numDays) {
dateObj.setDate(dateObj.getDate() + numDays);
return dateObj;
}
var now = new Date();
var tomorrow = addDays(new Date(), 1);
var nextWeek = addDays(new Date(), 7);
alert(
'Today: ' + now +
'\nTomorrow: ' + tomorrow +
'\nNext week: ' + nextWeek
);
Modules Preconditions:
The IIS core engine uses preconditions to determine when to enable a particular module. Performance reasons, for example, might determine that you only want to execute managed modules for requests that also go to a managed handler. The precondition in the following example (
precondition="managedHandler"
) only enables the forms authentication module for requests that are also handled by a managed handler, such as requests to .aspx or .asmx files:<add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule" preCondition="managedHandler" />
If you remove the attribute
precondition="managedHandler"
, Forms Authentication also applies to content that is not served by managed handlers, such as .html, .jpg, .doc, but also for classic ASP (.asp) or PHP (.php) extensions. See "How to Take Advantage of IIS Integrated Pipeline" for an example of enabling ASP.NET modules to run for all content.You can also use a shortcut to enable all managed (ASP.NET) modules to run for all requests in your application, regardless of the "
managedHandler
" precondition.To enable all managed modules to run for all requests without configuring each module entry to remove the "
managedHandler
" precondition, use therunAllManagedModulesForAllRequests
property in the<modules>
section:<modules runAllManagedModulesForAllRequests="true" />
When you use this property, the "
managedHandler
" precondition has no effect and all managed modules run for all requests.
Copied from IIS Modules Overview: Preconditions
Another way is to pass the file into mongo in your terminal prompt.
$ mongo < myjstest.js
This will start a mongo session, run the file, then exit. Not sure about calling a 2nd file from the 1st however. I haven't tried it.
$('form[name="myform"]')[0].reset();
An easier and more standard way to simulate a mouse click would be directly using the event constructor to create an event and dispatch it.
Though the
MouseEvent.initMouseEvent()
method is kept for backward compatibility, creating of a MouseEvent object should be done using theMouseEvent()
constructor.
var evt = new MouseEvent("click", {
view: window,
bubbles: true,
cancelable: true,
clientX: 20,
/* whatever properties you want to give it */
});
targetElement.dispatchEvent(evt);
Demo: http://jsfiddle.net/DerekL/932wyok6/
This works on all modern browsers. For old browsers including IE, MouseEvent.initMouseEvent
will have to be used unfortunately though it's deprecated.
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", canBubble, cancelable, view,
detail, screenX, screenY, clientX, clientY,
ctrlKey, altKey, shiftKey, metaKey,
button, relatedTarget);
targetElement.dispatchEvent(evt);
No one mentioned the CSS property scroll-behavior
CSS
html {
scroll-behavior: smooth;
}
JS
window.scrollTo(0,0)
There is advanced version of ping - "fping", which gives possibility to define the timeout in milliseconds.
#!/bin/bash
IP='192.168.1.1'
fping -c1 -t300 $IP 2>/dev/null 1>/dev/null
if [ "$?" = 0 ]
then
echo "Host found"
else
echo "Host not found"
fi
Typing /**
+ then pressing Enter above a method signature will create Javadoc stubs for you.
I might be missing something in your question here... but from what I can gather, by using the subtract method this should be what you're looking to do:
var timeStr = "00:03:15";
timeStr = timeStr.split(':');
var h = timeStr[1],
m = timeStr[2];
var newTime = moment("01:20:00 06-26-2014")
.subtract({'hours': h, 'minutes': m})
.format('hh:mm');
var str = h + " hours and " + m + " minutes earlier: " + newTime;
console.log(str); // 3 hours and 15 minutes earlier: 10:05
$(document).ready(function(){ _x000D_
var timeStr = "00:03:15";_x000D_
timeStr = timeStr.split(':');_x000D_
_x000D_
var h = timeStr[1],_x000D_
m = timeStr[2];_x000D_
_x000D_
var newTime = moment("01:20:00 06-26-2014")_x000D_
.subtract({'hours': h, 'minutes': m})_x000D_
.format('hh:mm');_x000D_
_x000D_
var str = h + " hours and " + m + " minutes earlier: " + newTime;_x000D_
_x000D_
$('#new-time').html(str);_x000D_
})
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment.min.js"></script>_x000D_
_x000D_
_x000D_
<p id="new-time"></p>
_x000D_
This isn't really possible in HTML unless you use absolute positioning or javascript. So one solution would be to give this CSS to #bottom_link:
#bottom_link {
position:absolute;
bottom:0;
}
Otherwise you'd have to use some javascript. Here's a jQuery block that should do the trick, depending on the simplicity of the page.
$('#bottom_link').css({
position: 'relative',
top: $(this).parent().height() - $(this).height()
});
To understand this question, you must first understand what SHA256 is. SHA256 is a Cryptographic Hash Function. A Cryptographic Hash Function is a one-way function, whose output is cryptographically secure. This means it is easy to compute a hash (equivalent to encrypting data), but hard to get the original input using the hash (equivalent to decrypting the data). Since using a Cryptographic hash function means decrypting is computationally infeasible, so therefore you cannot perform decryption with SHA256.
What you want to use is a two-way function, but more specifically, a Block Cipher. A function that allows for both encryption and decryption of data. The functions mcrypt_encrypt
and mcrypt_decrypt
by default use the Blowfish algorithm. PHP's use of mcrypt can be found in this manual. A list of cipher definitions to select the cipher mcrypt uses also exists. A wiki on Blowfish can be found at Wikipedia. A block cipher encrypts the input in blocks of known size and position with a known key, so that the data can later be decrypted using the key. This is what SHA256 cannot provide you.
$key = 'ThisIsTheCipherKey';
$ciphertext = mcrypt_encrypt(MCRYPT_BLOWFISH, $key, 'This is plaintext.', MCRYPT_MODE_CFB);
$plaintext = mcrypt_decrypt(MCRYPT_BLOWFISH, $key, $encrypted, MCRYPT_MODE_CFB);
To set image cource in imageview you can use any of the following ways. First confirm your image is present in which format.
If you have image in the form of bitmap then use
imageview.setImageBitmap(bm);
If you have image in the form of drawable then use
imageview.setImageDrawable(drawable);
If you have image in your resource example if image is present in drawable folder then use
imageview.setImageResource(R.drawable.image);
If you have path of image then use
imageview.setImageURI(Uri.parse("pathofimage"));
You can make the input statement a while True loop so it repeatedly asks for the users input and then break that loop if the user enters the response you would like. And you can use try and except blocks to handle invalid responses.
while True:
var = True
try:
age = int(input("Please enter your age: "))
except ValueError:
print("Invalid input.")
var = False
if var == True:
if age >= 18:
print("You are able to vote in the United States.")
break
else:
print("You are not able to vote in the United States.")
The var variable is just so that if the user enters a string instead of a integer the program wont return "You are not able to vote in the United States."
In some cases, you might want to know when the value is specifically null, which is particularly necessary when using XML which has been serialized from .NET objects. While the accepted answer works for this, it also returns the same result when the string is blank or empty, i.e. '', so you can't differentiate.
<group>
<item>
<id>item 1</id>
<CategoryName xsi:nil="true" />
</item>
</group>
So you can simply test the attribute.
<xsl:if test="CategoryName/@xsi:nil='true'">
Hello World.
</xsl:if>
Sometimes it's necessary to know the exact state and you can't simply check if CategoryName is instantiated, because unlike say Javascript
<xsl:if test="CategoryName">
Hello World.
</xsl:if>
Will return true for a null element.
I think awk
would be the best tool for this as it can both filter and perform the necessary string manipulation functions on filtered lines:
tail -f logfile | awk '/org.springframework/ {print substr($0, 6)}'
or
tail -f logfile | awk '/org.springframework/ && sub(/^.{5}/,"",$0)'
The problem is not that you can't forward-declare a template class. Yes, you do need to know all of the template parameters and their defaults to be able to forward-declare it correctly:
namespace std {
template<class T, class Allocator = std::allocator<T>>
class list;
}
But to make even such a forward declaration in namespace std
is explicitly prohibited by the standard: the only thing you're allowed to put in std
is a template specialisation, commonly std::less
on a user-defined type. Someone else can cite the relevant text if necessary.
Just #include <list>
and don't worry about it.
Oh, incidentally, any name containing double-underscores is reserved for use by the implementation, so you should use something like TEST_H
instead of __TEST__
. It's not going to generate a warning or an error, but if your program has a clash with an implementation-defined identifier, then it's not guaranteed to compile or run correctly: it's ill-formed. Also prohibited are names beginning with an underscore followed by a capital letter, among others. In general, don't start things with underscores unless you know what magic you're dealing with.
I also found another one for SQL Server:
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE OBJECTPROPERTY(OBJECT_ID(CONSTRAINT_SCHEMA + '.' + QUOTENAME(CONSTRAINT_NAME)), 'IsPrimaryKey') = 1
AND TABLE_NAME = 'TableName' AND TABLE_SCHEMA = 'Schema'
Possible problem in relation to answer from "user3616725":
Im on Windows 8.1 and there seems to be a problem with the linked VBA code from accepted answer from "user3616725":
Sub CopyCellContents()
' !!! IMPORTANT !!!:
' CREATE A REFERENCE IN THE VBE TO "Microsft Forms 2.0 Library" OR "Microsft Forms 2.0 Object Library"
' DO THIS BY (IN VBA EDITOR) CLICKING TOOLS -> REFERENCES & THEN TICKING "Microsoft Forms 2.0 Library" OR "Microsft Forms 2.0 Object Library"
Dim objData As New DataObject
Dim strTemp As String
strTemp = ActiveCell.Value
objData.SetText (strTemp)
objData.PutInClipboard
End Sub
Details:
Running above code and pasting clipboard into a cell in Excel I get two symbols composed of squares with a question mark inside, like this: ??. Pasting into Notepad doesn't even show anything.
Solution:
After searching for quite some time I found another VBA script from user "Nepumuk" which makes use of the Windows API. Here's his code that finally worked for me:
Option Explicit
Private Declare Function OpenClipboard Lib "user32.dll" ( _
ByVal hwnd As Long) As Long
Private Declare Function CloseClipboard Lib "user32.dll" () As Long
Private Declare Function EmptyClipboard Lib "user32.dll" () As Long
Private Declare Function SetClipboardData Lib "user32.dll" ( _
ByVal wFormat As Long, _
ByVal hMem As Long) As Long
Private Declare Function GlobalAlloc Lib "kernel32.dll" ( _
ByVal wFlags As Long, _
ByVal dwBytes As Long) As Long
Private Declare Function GlobalLock Lib "kernel32.dll" ( _
ByVal hMem As Long) As Long
Private Declare Function GlobalUnlock Lib "kernel32.dll" ( _
ByVal hMem As Long) As Long
Private Declare Function GlobalFree Lib "kernel32.dll" ( _
ByVal hMem As Long) As Long
Private Declare Function lstrcpy Lib "kernel32.dll" ( _
ByVal lpStr1 As Any, _
ByVal lpStr2 As Any) As Long
Private Const CF_TEXT As Long = 1&
Private Const GMEM_MOVEABLE As Long = 2
Public Sub Beispiel()
Call StringToClipboard("Hallo ...")
End Sub
Private Sub StringToClipboard(strText As String)
Dim lngIdentifier As Long, lngPointer As Long
lngIdentifier = GlobalAlloc(GMEM_MOVEABLE, Len(strText) + 1)
lngPointer = GlobalLock(lngIdentifier)
Call lstrcpy(ByVal lngPointer, strText)
Call GlobalUnlock(lngIdentifier)
Call OpenClipboard(0&)
Call EmptyClipboard
Call SetClipboardData(CF_TEXT, lngIdentifier)
Call CloseClipboard
Call GlobalFree(lngIdentifier)
End Sub
To use it the same way like the first VBA code from above, change the Sub "Beispiel()" from:
Public Sub Beispiel()
Call StringToClipboard("Hallo ...")
End Sub
To:
Sub CopyCellContents()
Call StringToClipboard(ActiveCell.Value)
End Sub
And run it via Excel macro menu like suggested from "user3616725" from accepted answer:
Back in Excel, go Tools>Macro>Macros and select the macro called "CopyCellContents" and then choose Options from the dialog. Here you can assign the macro to a shortcut key (eg like Ctrl+c for normal copy) - I used Ctrl+q.
Then, when you want to copy a single cell over to Notepad/wherever, just do Ctrl+q (or whatever you chose) and then do a Ctrl+v or Edit>Paste in your chosen destination.
Edit (21st of November in 2015):
@ comment from "dotctor":
No, this seriously is no new question! In my opinion it is a good addition for the accepted answer as my answer addresses problems that you can face when using the code from the accepted answer. If I would have more reputation, I would have created a comment.
@ comment from "Teepeemm":
Yes, you are right, answers beginning with title "Problem:" are misleading. Changed to: "Possible problem in relation to answer from "user3616725":". As a comment I certainly would have written much more compact.
Same as C, you would do
#include <time.h>
#include <stdlib.h>
...
srand(time(NULL));
int r = rand() % 74;
(assuming you meant including 0 but excluding 74, which is what your Java example does)
Edit: Feel free to substitute random()
or arc4random()
for rand()
(which is, as others have pointed out, quite sucky).
Are you trying to view an array with memory allocated dynamically? If not, you can view an array for C++ and C# by putting it in the watch window in the debugger, with its contents visible when you expand the array on the little (+) in the watch window by a left mouse-click.
If it's a pointer to a dynamically allocated array, to view N contents of the pointer, type "pointer, N" in the watch window of the debugger. Note, N must be an integer or the debugger will give you an error saying it can't access the contents. Then, left click on the little (+) icon that appears to view the contents.
here is how you can do it through list comprehension, but this will waste a little bit of your computer's memory as line.strip() has been called twice.
with open('textfile.txt') as file:
lines =[
line.strip()
for line in file
if line.strip() != '']
print("number of lines = {}".format(len(lines)))
The best way in my eyes is to use the concat()
method provided by the String
class itself.
The useage would, in your case, look like this:
String myConcatedString = cursor.getString(numcol).concat('-').
concat(cursor.getString(cursor.getColumnIndexOrThrow(db.KEY_DESTINATIE)));
in laragon delete all internal data files from "C:\laragon\data\mysql" and restart it, that worked for me
The currently top-voted answer by Krzysztof Krason fails with <title>a</title><title>b</title>
. Also, it ignores title tags crossing line boundaries, e.g., for line-length reasons. Finally, it fails with <title >a</title>
(which is valid HTML: White space inside XML/HTML tags).
I therefore propose the following improvement:
import re
def search_title(html):
m = re.search(r"<title\s*>(.*?)</title\s*>", html, re.IGNORECASE | re.DOTALL)
return m.group(1) if m else None
Test cases:
print(search_title("<title >with spaces in tags</title >"))
print(search_title("<title\n>with newline in tags</title\n>"))
print(search_title("<title>first of two titles</title><title>second title</title>"))
print(search_title("<title>with newline\n in title</title\n>"))
Output:
with spaces in tags
with newline in tags
first of two titles
with newline
in title
Ultimately, I go along with others recommending an HTML parser - not only, but also to handle non-standard use of HTML tags.
Try only using -e
(--execute
) option:
$ mysql -u root -proot -e "SHOW GLOBAL VARIABLES LIKE 'PORT';" (8s 26ms)
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port | 3306 |
+---------------+-------+
Replace root
by your "username" and "password"
use
struct arg_struct *args = (struct arg_struct *)arguments;
in place of
struct arg_struct *args = (struct arg_struct *)args;
I would fire up Visual Studio, create a web project (or console app - doesn't matter).
For .Net Standard:
If there is no error, you should simply set the NameSpace you want to use to access the service and it'll be generated for you.
For .Net Core
Any of the methods above will generate a simple, very basic WCF client for you to use. You should find a "YourservicenameClient" class in the generated code.
For reference purpose, the generated cs file can be found in your Obj/debug(or release)/XsdGeneratedCode and you can still find the dlls in the TempPE folder.
The created Service(s) should have methods for each of the defined methods on the WSDL contract.
Instantiate the client and call the methods you want to call - that's all there is!
YourServiceClient client = new YourServiceClient();
client.SayHello("World!");
If you need to specify the remote URL (not using the one created by default), you can easily do this in the constructor of the proxy client:
YourServiceClient client = new YourServiceClient("configName", "remoteURL");
where configName
is the name of the endpoint to use (you will use all the settings except the URL), and the remoteURL
is a string representing the URL to connect to (instead of the one contained in the config).
Vlookup
is good if the reference values (column A, sheet 1) are in ascending order. Another option is Index and Match, which can be used no matter the order (As long as the values in column a, sheet 1 are unique)
This is what you would put in column B on sheet 2
=INDEX(Sheet1!A$1:B$6,MATCH(A1,Sheet1!A$1:A$6),2)
Setting Sheet1!A$1:B$6
and Sheet1!A$1:A$6
as named ranges makes it a little more user friendly.
I rely heavily on commands like this.
python -c 'import sys; print(sys.maxsize)'
Max int returned: 9223372036854775807
For more references for 'sys' you should access
Terminal opens a login shell. This means, ~/.bash_profile
will get executed, ~/.bashrc
not.
The solution on most systems is to "require" the ~/.bashrc
in the ~/.bash_profile
: just put this snippet in your ~/.bash_profile
:
[[ -s ~/.bashrc ]] && source ~/.bashrc
Apache Commons has an IntegerValidator class which appears to do what you want. Java provides no in-built method for doing this.
See here for the groupid/artifactid.
I haven't tried it but if you put a div in your table cell set so that it will have scrollbars if needed, then you could insert in there, with a fixed height on the div and it should keep your table row to a fixed height.
Problem is if you type /public and it will still be available in the url, therefor i created a fix which should be placed in the public/index.php
$uri = urldecode(
parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)
);
if(stristr($uri, '/public/') == TRUE) {
if(file_exists(__DIR__.'/public'.$uri)){
}else{
$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
$actual_link = str_replace('public/', '',$actual_link);
header("HTTP/1.0 404 Not Found");
header("Location: ".$actual_link."");
exit();
return false;
}}
this peace of code will remove public from the url and will give a 404 and then redirects to the url without the public
As the documentation says, this method call returns "a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive)". This means that you will get numbers from 0 to 9 in your case. So you've done everything correctly by adding one to that number.
Generally speaking, if you need to generate numbers from min
to max
(including both), you write
random.nextInt(max - min + 1) + min
I have not been able to find a Firefox option equivalent of --disable-web-security or an addon that does that for me. I really needed it for some testing scenarios where modifying the web server was not possible. What did help was to use Fiddler to auto-modify web responses so that they have the correct headers and CORS is no longer an issue.
The steps are:
Open fiddler.
If on https go to menu Tools -> Options -> Https and tick the Capture & Decrypt https options
Go to menu Rules -> Customize rules. Modify the OnBeforeResponseFunction so that it looks like the following, then save:
static function OnBeforeResponse(oSession: Session) {
//....
oSession.oResponse.headers.Remove("Access-Control-Allow-Origin");
oSession.oResponse.headers.Add("Access-Control-Allow-Origin", "*");
//...
}
This will make every web response to have the Access-Control-Allow-Origin: * header.
This still won't work as the OPTIONS preflight will pass through and cause the request to block before our above rule gets the chance to modify the headers. So to fix this, in the fiddler main window, on the right hand side there's an AutoResponder tab. Add a new rule and response: METHOD:OPTIONS https://yoursite.com/ with auto response: *CORSPreflightAllow and tick the boxes: "Enable Rules" and "Unmatched requests passthrough".
See picture below for reference:
You can use this:
<Button
android:id="@+id/reset_all"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:background="@drawable/btn_med"
android:text="Reset all"
android:textColor="#ffffff" />
<Button
android:id="@+id/undo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:background="@drawable/btn_med"
android:text="Undo"
android:textColor="#ffffff" />
in that i have put an image as background
and also added text..!
Difference between null & empty string. For example: you have a variable named x. If you write in JS,
var x = "";
this means that you have assigned a value which is empty string (length is 0). Actually this is like something but which is feel of nothing :) On the other hand,
var y = null;
this means you've not assigned a value to y that clearly said by writing null to y at the time of declaration. If you write y.length; it will throw an error which indicates that no value assigned to y and as a result can't read length of y.
In terms of ascii code, it's 3 -- since they're 10 and 13 respectively;-).
But seriously, there are many:
\n
is the code for end-of-line, \r
means nothing special\n
is the standard escape sequence for end of line (translated to/from OS-specific sequences as needed)\r
was the code for end-of-line instead\r\n
, in this order\r\n
is the standard line-termination for text formats on the Internet\r
commands the carriage to go back leftwards until it hits the leftmost stop (a slow operation), \n
commands the roller to roll up one line (a much faster operation) -- that's the reason you always have \r
before \n
, so that the roller can move while the carriage is still going leftwards!-) Wikipedia has a more detailed explanation.\r
and \n
act similarly (except both in terms of the cursor, as there is no carriage or roller;-)In practice, in the modern context of writing to a text file, you should always use \n
(the underlying runtime will translate that if you're on a weird OS, e.g., Windows;-). The only reason to use \r
is if you're writing to a character terminal (or more likely a "console window" emulating it) and want the next line you write to overwrite the last one you just wrote (sometimes used for goofy "ascii animation" effects of e.g. progress bars) -- this is getting pretty obsolete in a world of GUIs, though;-).
If you want to print the last 10 lines, use
tail(dataset, 10)
for the first 10, you could also do
head(dataset, 10)
inplace
, contrary to what the name implies, often does not prevent copies from being created, and (almost) never offers any performance benefitsinplace
does not work with method chaininginplace
can lead to SettingWithCopyWarning
if used on a DataFrame column, and may prevent the operation from going though, leading to hard-to-debug errors in codeThe pain points above are common pitfalls for beginners, so removing this option will simplify the API.
I don't advise setting this parameter as it serves little purpose. See this GitHub issue which proposes the inplace
argument be deprecated api-wide.
It is a common misconception that using inplace=True
will lead to more efficient or optimized code. In reality, there are absolutely no performance benefits to using inplace=True
. Both the in-place and out-of-place versions create a copy of the data anyway, with the in-place version automatically assigning the copy back.
inplace=True
is a common pitfall for beginners. For example, it can trigger the SettingWithCopyWarning
:
df = pd.DataFrame({'a': [3, 2, 1], 'b': ['x', 'y', 'z']})
df2 = df[df['a'] > 1]
df2['b'].replace({'x': 'abc'}, inplace=True)
# SettingWithCopyWarning:
# A value is trying to be set on a copy of a slice from a DataFrame
Calling a function on a DataFrame column with inplace=True
may or may not work. This is especially true when chained indexing is involved.
As if the problems described above aren't enough, inplace=True
also hinders method chaining. Contrast the working of
result = df.some_function1().reset_index().some_function2()
As opposed to
temp = df.some_function1()
temp.reset_index(inplace=True)
result = temp.some_function2()
The former lends itself to better code organization and readability.
Another supporting claim is that the API for set_axis
was recently changed such that inplace
default value was switched from True to False. See GH27600. Great job devs!
I've found that the above solution will not work if you have to deal with control characters like 02
(STX) or 03
(ETX), anything under 10
will be read as a single digit and throw off everything after. I ran into this problem trying to parse through serial communications. So, I first took the hex string received and put it in a buffer object then converted the hex string into an array of the strings like so:
buf = Buffer.from(data, 'hex');
l = Buffer.byteLength(buf,'hex');
for (i=0; i<l; i++){
char = buf.toString('hex', i, i+1);
msgArray.push(char);
}
Then .join it
message = msgArray.join('');
then I created a hexToAscii
function just like in @Delan Azabani's answer above...
function hexToAscii(str){
hexString = str;
strOut = '';
for (x = 0; x < hexString.length; x += 2) {
strOut += String.fromCharCode(parseInt(hexString.substr(x, 2), 16));
}
return strOut;
}
then called the hexToAscii
function on 'message'
message = hexToAscii(message);
This approach also allowed me to iterate through the array and slice into the different parts of the transmission using the control characters so I could then deal with only the part of the data I wanted. Hope this helps someone else!
Try adding
to the empty items.
I don't understand why you're not using a <table>
here, though? They will do this kind of stuff automatically.
If you actually make use of spring boot run configurations (currently only supported in the Ultimate Edition) it's easy to pre-configure the profiles in "Active Profiles" setting.
Debounced / throttled model updates for angularjs : http://jsfiddle.net/lgersman/vPsGb/3/
In your case there is nothing more to do than using the directive in the jsfiddle code like this:
<input
id="searchText"
type="search"
placeholder="live search..."
ng-model="searchText"
ng-ampere-debounce
/>
Its basically a small piece of code consisting of a single angular directive named "ng-ampere-debounce" utilizing http://benalman.com/projects/jquery-throttle-debounce-plugin/ which can be attached to any dom element. The directive reorders the attached event handlers so that it can control when to throttle events.
You can use it for throttling/debouncing * model angular updates * angular event handler ng-[event] * jquery event handlers
Have a look : http://jsfiddle.net/lgersman/vPsGb/3/
The directive will be part of the Orangevolt Ampere framework (https://github.com/lgersman/jquery.orangevolt-ampere).
You are to use something like this:
start /d C:\Windows\System32\calc.exe
start /d "C:\Program Files\Mozilla
Firefox" firefox.exe start /d
"C:\Program Files\Microsoft
Office\Office12" EXCEL.EXE
Also I advice you to use special batch files editor - Dr.Batcher
Mr. Curious was curious about this as well. In addition to the #>> '{}'
operator, in 9.6+ one can get the value of a jsonb string with the ->>
operator:
select to_jsonb('Some "text"'::TEXT)->>0;
?column?
-------------
Some "text"
(1 row)
If one has a json value, then the solution is to cast into jsonb first:
select to_json('Some "text"'::TEXT)::jsonb->>0;
?column?
-------------
Some "text"
(1 row)
You should put the statement btnConvertDocuments.setEnabled(false);
in the actionPerformed(ActionEvent event)
method. Your conditional above only get call once in the constructor when IPGUI object is being instantiated.
if (command.equals("w")) {
FileConverter fc = new FileConverter();
btn1Clicked = true;
btnConvertDocuments.setEnabled(false);
}
Just use the __block
prefix to declare and assign any type of variable inside a block.
For example:
__block Person *aPerson = nil;
__block NSString *name = nil;
I would get the part before and after what you want to replace and put them either side.
Like:
var str = 'asd-0.testing';
var regex = /(asd-)\d(\.\w+)/;
var matches = str.match(regex);
var result = matches[1] + "1" + matches[2];
// With ES6:
var result = `${matches[1]}1${matches[2]}`;
Another example. When building a complex map of maps, the computeIfAbsent() method is a replacement for map's get() method. Through chaining of computeIfAbsent() calls together, missing containers are constructed on-the-fly by provided lambda expressions:
// Stores regional movie ratings
Map<String, Map<Integer, Set<String>>> regionalMovieRatings = new TreeMap<>();
// This will throw NullPointerException!
regionalMovieRatings.get("New York").get(5).add("Boyhood");
// This will work
regionalMovieRatings
.computeIfAbsent("New York", region -> new TreeMap<>())
.computeIfAbsent(5, rating -> new TreeSet<>())
.add("Boyhood");
I had a certificate that expired (which generated the error).
Step 1. Go to developer.apple.com, login, and go to IOS provisioning portal
Step 2. Go to certificates (which is now empty), and follow the instructions listed to create a new certificate (open keychain on your computer, create a signing request, save it to disk, upload it to apple)
Step 3. Download and install the files created by apple to your keychain
Step 4. Problem: all of your previous provisioning profiles were associated with your OLD certificate, so you need to go back to developer.apple.com->IOS provising portal-> provisioning profiles and 'modify' each profile you care about. You will see that your identity is no longer assicated with the profile, so just click the check box
Step 5. Download all the profiles you changed
Step 6. Plugin your phone and drag and drop the .mobileprovision file onto xcode icon in the dock bar to install them on the device
$('#pagedwn').bind("click", function () {
$('html, body').animate({ scrollTop:3031 },"fast");
return false;
});
This solution worked for me. It is working in Page Scroll Down fastly.
I still had a dark grey line after attempting the other answers. I had to add the following two lines to make everything "invisible" in terms of row lines between cells.
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
self.tableView.separatorColor = [UIColor clearColor];
For debugging purposes. Recursive write an array of nested arrays to a string. Used foreach. Function stores National Language characters.
function q($input)
{
$glue = ', ';
$function = function ($v, $k) use (&$function, $glue) {
if (is_array($v)) {
$arr = [];
foreach ($v as $key => $value) {
$arr[] = $function($value, $key);
}
$result = "{" . implode($glue, $arr) . "}";
} else {
$result = sprintf("%s=\"%s\"", $k, var_export($v, true));
}
return $result;
};
return implode($glue, array_map($function, $input, array_keys($input))) . "\n";
}
exec is for statement and does not return anything. eval is for expression and returns value of expression.
expression means "something" while statement means "do something".
To find the env vars dialog in Windows 10:
Right Click Start
>> Click Control Panel (Or you may have System in the list)
>> Click System
>> Click Advanced system settings
>> Go to the Advanced Tab
>> Click the "Environment Variables..." button at the bottom of that dialog page.
There is no need to pass anything to ffmpeg
you can just grab the desired format, in this example, it was the "95" format.
So once you know that it is the 95, you just type:
youtube-dl -f 95 https://www.youtube.com/watch\?v\=6aXR-SL5L2o
that is to say:
youtube-dl -f <format number> <url>
It will begin generating on the working directory a <somename>.<probably mp4>.part
which is the partially downloaded file, let it go and just press <Ctrl-C>
to stop the capture.
The file will still be named <something>.part
, rename it to <whatever>.mp4
and there it is...
The ffmpeg
code:
ffmpeg -i $(youtube-dl -f <format number> -g <url>) -copy <file_name>.ts
also worked for me, but sound and video got out of sync, using just youtube-dl
seemed to yield a better result although it too uses ffmpeg
.
The downside of this approach is that you cannot watch the video while downloading, well you can open yet another FF or Chrome, but it seems that mplayer
cannot process the video output till youtube-dl
/ffmpeg
are running.
After changing main port from 80 to 8080 you have to change the config in XAMPP control panel as I show in the images:
Then restart the service and that's it !
You can use Ra-Ajax and have an iframe wrapped inside e.g. a Window control. Though in general terms I don't encourage people to use iframes (for anything)
Another alternative is to load the HTML on the server and send it directly into the Window as the content of a Label or something. Check out how this Ajax RSS parser is loading the RSS items in the source which can be downloaded here (Open Source - LGPL)
(Disclaimer; I work with Ra-Ajax...)
I ran into a similar issue; I wanted a default route handler if none of the route handler matched.
My solutions is to use a wildcard as the path value. ie Also make sure it is the last entry in your routes definition.
<Route path="/" component={App} >
<IndexRoute component={HomePage} />
<Route path="about" component={AboutPage} />
<Route path="home" component={HomePage} />
<Route path="*" component={HomePage} />
</Route>
Explicit Merge: Creates a new merge commit. (This is what you will get if you used --no-ff
.)
Fast Forward Merge: Forward rapidly, without creating a new commit:
Rebase: Establish a new base level:
Squash: Crush or squeeze (something) with force so that it becomes flat:
In some cases _hostingEnvironment.ContentRootPath
and System.IO.Directory.GetCurrentDirectory()
targets to source directory. Here is bug about it.
The solution proposed there helped me
Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
Install the sqlite-devel
package:
yum install sqlite-devel -y
Recompile python from the source:
./configure
make
make altinstall
Use setText(str)
method of JLabel
to dynamically change text displayed. In actionPerform of button write this:
jLabel.setText("new Value");
A simple demo code will be:
JFrame frame = new JFrame("Demo");
frame.setLayout(new BorderLayout());
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setSize(250,100);
final JLabel label = new JLabel("flag");
JButton button = new JButton("Change flag");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
label.setText("new value");
}
});
frame.add(label, BorderLayout.NORTH);
frame.add(button, BorderLayout.CENTER);
frame.setVisible(true);
From the official nodejs.org documentation:
process.exit(code)
Ends the process with the specified code. If omitted, exit uses the 'success' code 0.
To exit with a 'failure' code:
process.exit(1);
If you use an array to back the binary tree, you can determine the next node algebraically. if i
is a node, then its children can be found at 2i + 1
(for the left node) and 2i + 2
(for the right node). A node's next neighbor is given by i + 1
, unless i
is a power of 2
Here's pseudocode for a very naive implementation of breadth first search on an array backed binary search tree. This assumes a fixed size array and therefore a fixed depth tree. It will look at parentless nodes, and could create an unmanageably large stack.
bintree-bfs(bintree, elt, i)
if (i == LENGTH)
return false
else if (bintree[i] == elt)
return true
else
return bintree-bfs(bintree, elt, i+1)
This one disables all bogus verbs and only allows GET and POST
<system.webServer>
<security>
<requestFiltering>
<verbs allowUnlisted="false">
<clear/>
<add verb="GET" allowed="true"/>
<add verb="POST" allowed="true"/>
</verbs>
</requestFiltering>
</security>
</system.webServer>
There's no simple, elegant CSS analog for colspan
.
Searches on this very issue will return a variety of solutions that include a bevy of alternatives, including absolute positioning, sizing, along with a similar variety of browser- and circumstance-specific caveats. Read, and make the best informed decision you can based on what you find.
You're using smart quotes. That is, instead of standard quotation marks ("
), you are using curly quotes (”
). This happens automatically with Microsoft Word and other word processors to make things look prettier, but it also mangles HTML. Make sure to code in a plain text editor, like Notepad or Notepad2.
<html>
<head>
<title>HTML in 10 Simple Steps or Less</title>
<meta http-equiv="refresh" content="5"> <!-- See the difference? -->
</head>
<body>
</body>
</html>
Stumbled across this today. For anyone coding an SMS receiver nowadays, use this code instead of the deprecated in OP:
SmsMessage[] msgs = Telephony.Sms.Intents.getMessagesFromIntent(intent);
SmsMessage smsMessage = msgs[0];
If you have a view with multiple constrains, a much easier way without having to create multiple outlets would be:
In interface builder, give each constraint you wish to modify an identifier:
Then in code you can modify multiple constraints like so:
for constraint in self.view.constraints {
if constraint.identifier == "myConstraint" {
constraint.constant = 50
}
}
myView.layoutIfNeeded()
You can give multiple constrains the same identifier thus allowing you to group together constrains and modify all at once.
A very simple way to create and write to a file in Java:
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
public class CreateFiles {
public static void main(String[] args) {
try{
// Create new file
String content = "This is the content to write into create file";
String path="D:\\a\\hi.txt";
File file = new File(path);
// If file doesn't exists, then create it
if (!file.exists()) {
file.createNewFile();
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
// Write in file
bw.write(content);
// Close connection
bw.close();
}
catch(Exception e){
System.out.println(e);
}
}
}
Normally, you run IE 32 bit.
However, on 64-bit versions of Windows, there is a separate link in the Start Menu to Internet Explorer (64 bit). There's no real reason to use it, though.
In Help, About, the 64-bit version of IE will say 64-bit Edition
(just after the full version string).
The 32-bit and 64-bit versions of IE have separate addons lists (because 32-bit addons cannot be loaded in 64-bit IE, and vice-versa), so you should make sure that Java appears on both lists.
In general, you can tell whether a process is 32-bit or 64-bit by right-clicking the application in Task Manager and clicking Go To Process. 32-bit processes will end with *32
.
There are several ways to prevent line breaks in content. Using
is one way, and works fine between words, but using it between an empty element and some text does not have a well-defined effect. The same would apply to the more logical and more accessible approach where you use an image for an icon.
The most robust alternative is to use nobr
markup, which is nonstandard but universally supported and works even when CSS is disabled:
<td><nobr><i class="flag-bfh-ES"></i> +34 666 66 66 66</nobr></td>
(You can, but need not, use
instead of spaces in this case.)
Another way is the nowrap
attribute (deprecated/obsolete, but still working fine, except for some rare quirks):
<td nowrap><i class="flag-bfh-ES"></i> +34 666 66 66 66</td>
Then there’s the CSS way, which works in CSS enabled browsers and needs a bit more code:
<style>
.nobr { white-space: nowrap }
</style>
...
<td class=nobr><i class="flag-bfh-ES"></i> +34 666 66 66 66</td>
Judging from the comments, you are looking for:
mongoose.mongo.BSONPure.ObjectID.isValid
Or
mongoose.Types.ObjectId.isValid
The most readable way is
x = 10 if a > b else 11
but you can use and
and or
, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variable instead of 10
and it evaluates to False
.
However, if more than the assignment depends on this condition, it will be more readable to write it as you have:
if A[i] > B[j]:
x = A[i]
i += 1
else:
x = A[j]
j += 1
unless you put i
and j
in a container. But if you show us why you need it, it may well turn out that you don't.
var str = '/questions'; // input: "/questions"
while(str.indexOf('/') != -1){
str = str.replace('/', 'http://stackoverflow.com/');
}
alert(str); // output: "http://stackoverflow.com/questions"
The proposed regex /\//g
did not work for me; the rest of the line (//g, replacement);
) was commented out.
Maybe I'm missing something here, but usually calling .SingleOrDefault()
is the way to go to return either the single element in the list, or a default value (null for reference or nullable types) if the list is empty.
It generates an exception if the list contains more than one element.
Use FirstOrDefault()
to cover the case where you could have more than one.
geolocator.js can do that. (I'm the author).
Getting City Name (Limited Address)
geolocator.locateByIP(options, function (err, location) {
console.log(location.address.city);
});
Getting Full Address Information
Example below will first try HTML5 Geolocation API to obtain the exact coordinates. If fails or rejected, it will fallback to Geo-IP look-up. Once it gets the coordinates, it will reverse-geocode the coordinates into an address.
var options = {
enableHighAccuracy: true,
fallbackToIP: true, // fallback to IP if Geolocation fails or rejected
addressLookup: true
};
geolocator.locate(options, function (err, location) {
console.log(location.address.city);
});
This uses Google APIs internally (for address lookup). So before this call, you should configure geolocator with your Google API key.
geolocator.config({
language: "en",
google: {
version: "3",
key: "YOUR-GOOGLE-API-KEY"
}
});
Geolocator supports geo-location (via HTML5 or IP lookups), geocoding, address look-ups (reverse geocoding), distance & durations, timezone information and a lot more features...
Well... I see that an answer was already accepted... but I think you should see another solutions anyway:
/* EXAMPLE */
DECLARE @UserAliases TABLE(UserId INT , Alias VARCHAR(10))
INSERT INTO @UserAliases (UserId,Alias) SELECT 1,'MrX'
UNION ALL SELECT 1,'MrY' UNION ALL SELECT 1,'MrA'
UNION ALL SELECT 2,'Abc' UNION ALL SELECT 2,'Xyz'
/* QUERY */
;WITH tmp AS ( SELECT DISTINCT UserId FROM @UserAliases )
SELECT
LEFT(tmp.UserId, 10) +
'/ ' +
STUFF(
( SELECT ', '+Alias
FROM @UserAliases
WHERE UserId = tmp.UserId
FOR XML PATH('')
)
, 1, 2, ''
) AS [UserId/Alias]
FROM tmp
/* -- OUTPUT
UserId/Alias
1/ MrX, MrY, MrA
2/ Abc, Xyz
*/
Use:
pandas.set_option('display.max_columns', 7)
This will force Pandas to display the 7 columns you have. Or more generally:
pandas.set_option('display.max_columns', None)
which will force it to display any number of columns.
Explanation: the default for max_columns
is 0
, which tells Pandas to display the table only if all the columns can be squeezed into the width of your console.
Alternatively, you can change the console width (in chars) from the default of 80 using e.g:
pandas.set_option('display.width', 200)
You can use Buffer.from()
to convert a string to buffer. More information on this can be found here
var buf = Buffer.from('some string', 'encoding');
for example
var buf = Buffer.from(bStr, 'utf-8');
memberOf (in AD) is stored as a list of distinguishedNames. Your filter needs to be something like:
(&(objectCategory=user)(memberOf=cn=MyCustomGroup,ou=ouOfGroup,dc=subdomain,dc=domain,dc=com))
If you don't yet have the distinguished name, you can search for it with:
(&(objectCategory=group)(cn=myCustomGroup))
and return the attribute distinguishedName
. Case may matter.
-- i use something like this, with concepts and some code stolen from asktom.
-- suggestions for improvements are welcome
WITH
sess AS
(
SELECT *
FROM V$SESSION
WHERE USERNAME = USER
ORDER BY SID
)
SELECT si.SID,
si.LOCKWAIT,
si.OSUSER,
si.PROGRAM,
si.LOGON_TIME,
si.STATUS,
(
SELECT ROUND(USED_UBLK*8/1024,1)
FROM V$TRANSACTION,
sess
WHERE sess.TADDR = V$TRANSACTION.ADDR
AND sess.SID = si.SID
) rollback_remaining,
(
SELECT (MAX(DECODE(PIECE, 0,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 1,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 2,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 3,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 4,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 5,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 6,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 7,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 8,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 9,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 10,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 11,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 12,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 13,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 14,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 15,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 16,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 17,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 18,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 19,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 20,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 21,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 22,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 23,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 24,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 25,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 26,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 27,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 28,SQL_TEXT,NULL)) ||
MAX(DECODE(PIECE, 29,SQL_TEXT,NULL)))
FROM V$SQLTEXT_WITH_NEWLINES
WHERE ADDRESS = SI.SQL_ADDRESS AND
PIECE < 30
) SQL_TEXT
FROM sess si;
Using !important
is not a good option, as you will most likely want to override your own styles in the future. That leaves us with CSS priorities.
Basically, every selector has its own numerical 'weight':
Among two selector styles browser will always choose the one with more weight. Order of your stylesheets only matters when priorities are even - that's why it is not easy to override Bootstrap.
Your option is to inspect Bootstrap sources, find out how exactly some specific style is defined, and copy that selector so your element has equal priority. But we kinda loose all Bootstrap sweetness in the process.
The easiest way to overcome this is to assign additional arbitrary ID to one of the root elements on your page, like this: <body id="bootstrap-overrides">
This way, you can just prefix any CSS selector with your ID, instantly adding 100 points of weight to the element, and overriding Bootstrap definitions:
/* Example selector defined in Bootstrap */
.jumbotron h1 { /* 10+1=11 priority scores */
line-height: 1;
color: inherit;
}
/* Your initial take at styling */
h1 { /* 1 priority score, not enough to override Bootstrap jumbotron definition */
line-height: 1;
color: inherit;
}
/* New way of prioritization */
#bootstrap-overrides h1 { /* 100+1=101 priority score, yay! */
line-height: 1;
color: inherit;
}
Modify the DataNode class so that it implements Comparable interface.
public int compareTo(DataNode o)
{
return(degree - o.degree);
}
then just use
Collections.sort(nodeList);
Try this one:
$("div.subtab_left li.notebook a").click(function(e) {
e.preventDefault();
return false;
});
A portable way to clear up to the end of a line that you've already tried to read partially is:
int c;
while ( (c = getchar()) != '\n' && c != EOF ) { }
This reads and discards characters until it gets \n
which signals the end of the file. It also checks against EOF
in case the input stream gets closed before the end of the line. The type of c
must be int
(or larger) in order to be able to hold the value EOF
.
There is no portable way to find out if there are any more lines after the current line (if there aren't, then getchar
will block for input).
S3 does not have directories, while you can list files in a pseudo directory manner like you demonstrated, there is no directory "file" per-se.
You may of inadvertently created a data file called users/<user-id>/contacts/<contact-id>/
.
I had the same problem yesterday but I did it in a very clean way which works for both client side and server side validation.
Condition: Based on the value of other property in the model, you want to make another property required. Here is the code
public class RequiredIfAttribute : RequiredAttribute
{
private String PropertyName { get; set; }
private Object DesiredValue { get; set; }
public RequiredIfAttribute(String propertyName, Object desiredvalue)
{
PropertyName = propertyName;
DesiredValue = desiredvalue;
}
protected override ValidationResult IsValid(object value, ValidationContext context)
{
Object instance = context.ObjectInstance;
Type type = instance.GetType();
Object proprtyvalue = type.GetProperty(PropertyName).GetValue(instance, null);
if (proprtyvalue.ToString() == DesiredValue.ToString())
{
ValidationResult result = base.IsValid(value, context);
return result;
}
return ValidationResult.Success;
}
}
Here PropertyName is the property on which you want to make your condition DesiredValue is the particular value of the PropertyName (property) for which your other property has to be validated for required
Say you have the following
public class User
{
public UserType UserType { get; set; }
[RequiredIf("UserType", UserType.Admin, ErrorMessageResourceName = "PasswordRequired", ErrorMessageResourceType = typeof(ResourceString))]
public string Password
{
get;
set;
}
}
At last but not the least , register adapter for your attribute so that it can do client side validation (I put it in global.asax, Application_Start)
DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(RequiredIfAttribute),typeof(RequiredAttributeAdapter));
I know this is an older question, but for reference, a really simple way for formatting dates without any data annotations or any other settings is as follows:
@Html.TextBoxFor(m => m.StartDate, new { @Value = Model.StartDate.ToString("dd-MMM-yyyy") })
The above format can of course be changed to whatever.
Two main purposes for error handling:
So, how would you do this?
First of all, create an error form to display when an unexpected error occurs.
It could look something like this (FYI: Mine is called frmErrors):
Notice the following labels:
Also, the standard command buttons:
There's nothing spectacular in the code for this form:
Option Explicit
Private Sub cmdCancel_Click()
Me.Tag = CMD_CANCEL
Me.Hide
End Sub
Private Sub cmdIgnore_Click()
Me.Tag = CMD_IGNORE
Me.Hide
End Sub
Private Sub cmdRetry_Click()
Me.Tag = CMD_RETRY
Me.Hide
End Sub
Private Sub UserForm_Initialize()
Me.lblErrorTitle.Caption = "Custom Error Title Caption String"
End Sub
Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)
'Prevent user from closing with the Close box in the title bar.
If CloseMode <> 1 Then
cmdCancel_Click
End If
End Sub
Basically, you want to know which button the user pressed when the form closes.
Next, create an Error Handler Module that will be used throughout your VBA app:
'****************************************************************
' MODULE: ErrorHandler
'
' PURPOSE: A VBA Error Handling routine to handle
' any unexpected errors
'
' Date: Name: Description:
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'03/22/2010 Ray Initial Creation
'****************************************************************
Option Explicit
Global Const CMD_RETRY = 0
Global Const CMD_IGNORE = 1
Global Const CMD_CANCEL = 2
Global Const CMD_CONTINUE = 3
Type ErrorType
iErrNum As Long
sHeadline As String
sProblemMsg As String
sResponseMsg As String
sErrorSource As String
sErrorDescription As String
iBtnCap(3) As Integer
iBitmap As Integer
End Type
Global gEStruc As ErrorType
Sub EmptyErrStruc_S(utEStruc As ErrorType)
Dim i As Integer
utEStruc.iErrNum = 0
utEStruc.sHeadline = ""
utEStruc.sProblemMsg = ""
utEStruc.sResponseMsg = ""
utEStruc.sErrorSource = ""
For i = 0 To 2
utEStruc.iBtnCap(i) = -1
Next
utEStruc.iBitmap = 1
End Sub
Function FillErrorStruct_F(EStruc As ErrorType) As Boolean
'Must save error text before starting new error handler
'in case we need it later
EStruc.sProblemMsg = Error(EStruc.iErrNum)
On Error GoTo vbDefaultFill
EStruc.sHeadline = "Error " & Format$(EStruc.iErrNum)
EStruc.sProblemMsg = EStruc.sErrorDescription
EStruc.sErrorSource = EStruc.sErrorSource
EStruc.sResponseMsg = "Contact the Company and tell them you received Error # " & Str$(EStruc.iErrNum) & ". You should write down the program function you were using, the record you were working with, and what you were doing."
Select Case EStruc.iErrNum
'Case Error number here
'not sure what numeric errors user will ecounter, but can be implemented here
'e.g.
'EStruc.sHeadline = "Error 3265"
'EStruc.sResponseMsg = "Contact tech support. Tell them what you were doing in the program."
Case Else
EStruc.sHeadline = "Error " & Format$(EStruc.iErrNum) & ": " & EStruc.sErrorDescription
EStruc.sProblemMsg = EStruc.sErrorDescription
End Select
GoTo FillStrucEnd
vbDefaultFill:
'Error Not on file
EStruc.sHeadline = "Error " & Format$(EStruc.iErrNum) & ": Contact Tech Support"
EStruc.sResponseMsg = "Contact the Company and tell them you received Error # " & Str$(EStruc.iErrNum)
FillStrucEnd:
Exit Function
End Function
Function iErrorHandler_F(utEStruc As ErrorType) As Integer
Static sCaption(3) As String
Dim i As Integer
Dim iMCursor As Integer
Beep
'Setup static array
If Len(sCaption(0)) < 1 Then
sCaption(CMD_IGNORE) = "&Ignore"
sCaption(CMD_RETRY) = "&Retry"
sCaption(CMD_CANCEL) = "&Cancel"
sCaption(CMD_CONTINUE) = "Continue"
End If
Load frmErrors
'Did caller pass error info? If not fill struc with the needed info
If Len(utEStruc.sHeadline) < 1 Then
i = FillErrorStruct_F(utEStruc)
End If
frmErrors!lblHeadline.Caption = utEStruc.sHeadline
frmErrors!lblProblem.Caption = utEStruc.sProblemMsg
frmErrors!lblSource.Caption = utEStruc.sErrorSource
frmErrors!lblResponse.Caption = utEStruc.sResponseMsg
frmErrors.Show
iErrorHandler_F = frmErrors.Tag ' Save user response
Unload frmErrors ' Unload and release form
EmptyErrStruc_S utEStruc ' Release memory
End Function
You may have errors that will be custom only to your application. This would typically be a short list of errors specifically only to your application. If you don't already have a constants module, create one that will contain an ENUM of your custom errors. (NOTE: Office '97 does NOT support ENUMS.). The ENUM should look something like this:
Public Enum CustomErrorName
MaskedFilterNotSupported
InvalidMonthNumber
End Enum
Create a module that will throw your custom errors.
'********************************************************************************************************************************
' MODULE: CustomErrorList
'
' PURPOSE: For trapping custom errors applicable to this application
'
'INSTRUCTIONS: To use this module to create your own custom error:
' 1. Add the Name of the Error to the CustomErrorName Enum
' 2. Add a Case Statement to the raiseCustomError Sub
' 3. Call the raiseCustomError Sub in the routine you may see the custom error
' 4. Make sure the routine you call the raiseCustomError has error handling in it
'
'
' Date: Name: Description:
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'03/26/2010 Ray Initial Creation
'********************************************************************************************************************************
Option Explicit
Const MICROSOFT_OFFSET = 512 'Microsoft reserves error values between vbObjectError and vbObjectError + 512
'************************************************************************************************
' FUNCTION: raiseCustomError
'
' PURPOSE: Raises a custom error based on the information passed
'
'PARAMETERS: customError - An integer of type CustomErrorName Enum that defines the custom error
' errorSource - The place the error came from
'
' Returns: The ASCII vaule that should be used for the Keypress
'
' Date: Name: Description:
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'03/26/2010 Ray Initial Creation
'************************************************************************************************
Public Sub raiseCustomError(customError As Integer, Optional errorSource As String = "")
Dim errorLong As Long
Dim errorDescription As String
errorLong = vbObjectError + MICROSOFT_OFFSET + customError
Select Case customError
Case CustomErrorName.MaskedFilterNotSupported
errorDescription = "The mask filter passed is not supported"
Case CustomErrorName.InvalidMonthNumber
errorDescription = "Invalid Month Number Passed"
Case Else
errorDescription = "The custom error raised is unknown."
End Select
Err.Raise errorLong, errorSource, errorDescription
End Sub
You are now well equipped to trap errors in your program. You sub (or function), should look something like this:
Public Sub MySub(monthNumber as Integer)
On Error GoTo eh
Dim sheetWorkSheet As Worksheet
'Run Some code here
'************************************************
'* OPTIONAL BLOCK 1: Look for a specific error
'************************************************
'Temporarily Turn off Error Handling so that you can check for specific error
On Error Resume Next
'Do some code where you might expect an error. Example below:
Const ERR_SHEET_NOT_FOUND = 9 'This error number is actually subscript out of range, but for this example means the worksheet was not found
Set sheetWorkSheet = Sheets("January")
'Now see if the expected error exists
If Err.Number = ERR_SHEET_NOT_FOUND Then
MsgBox "Hey! The January worksheet is missing. You need to recreate it."
Exit Sub
ElseIf Err.Number <> 0 Then
'Uh oh...there was an error we did not expect so just run basic error handling
GoTo eh
End If
'Finished with predictable errors, turn basic error handling back on:
On Error GoTo eh
'**********************************************************************************
'* End of OPTIONAL BLOCK 1
'**********************************************************************************
'**********************************************************************************
'* OPTIONAL BLOCK 2: Raise (a.k.a. "Throw") a Custom Error if applicable
'**********************************************************************************
If not (monthNumber >=1 and monthnumber <=12) then
raiseCustomError CustomErrorName.InvalidMonthNumber, "My Sub"
end if
'**********************************************************************************
'* End of OPTIONAL BLOCK 2
'**********************************************************************************
'Rest of code in your sub
goto sub_exit
eh:
gEStruc.iErrNum = Err.Number
gEStruc.sErrorDescription = Err.Description
gEStruc.sErrorSource = Err.Source
m_rc = iErrorHandler_F(gEStruc)
If m_rc = CMD_RETRY Then
Resume
End If
sub_exit:
'Any final processing you want to do.
'Be careful with what you put here because if it errors out, the error rolls up. This can be difficult to debug; especially if calling routine has no error handling.
Exit Sub 'I was told a long time ago (10+ years) that exit sub was better than end sub...I can't tell you why, so you may not want to put in this line of code. It's habit I can't break :P
End Sub
A copy/paste of the code above may not work right out of the gate, but should definitely give you the gist.
BTW, if you ever need me to do your company logo, look me up at http://www.MySuperCrappyLogoLabels99.com
So if I understand it correctly.
A class
method does not need you to allocate instance of that object to use / process it. A class
method is self contained and can operate without any dependence of the state of any object of that class. A class
method is expected to allocate memory for all its own work and deallocate when done, since no instance of that class will be able to free any memory allocated in previous calls to the class method.
A instance
method is just the opposite. You cannot call it unless you allocate a instance of that class. Its like a normal class that has a constructor and can have a destructor (that cleans up all the allocated memory).
In most probability (unless you are writing a reusable library, you should not need a class
variable.
In addition to what other have said, you may also be interested to know that what in
does is to call the list.__contains__
method, that you can define on any class you write and can get extremely handy to use python at his full extent.
A dumb use may be:
>>> class ContainsEverything:
def __init__(self):
return None
def __contains__(self, *elem, **k):
return True
>>> a = ContainsEverything()
>>> 3 in a
True
>>> a in a
True
>>> False in a
True
>>> False not in a
False
>>>
You can do it in a single command:
git fetch --all && git reset --hard origin/master
Or in a pair of commands:
git fetch --all
git reset --hard origin/master
Note than you will lose ALL your local changes
Although it is probably easiest to generate a new CSR using IIS (like @rainabba said), assuming you have the intermediate certificates there are some online converters out there - for instance: https://www.sslshopper.com/ssl-converter.html
This will allow you to create a PFX from your certificate and private key without having to install another program.
What's wrong with your code? I find it to be quite elegant and simple. The only problem is that if the file doesn't end in a newline, the last line returned won't have a '\n'
as the last character, and therefore doing line = line[:-1]
would incorrectly strip off the last character of the line.
The most elegant way to solve this problem would be to define a generator which took the lines of the file and removed the last character from each line only if that character is a newline:
def strip_trailing_newlines(file):
for line in file:
if line[-1] == '\n':
yield line[:-1]
else:
yield line
f = open("myFile.txt", "r")
for line in strip_trailing_newlines(f):
# do something with line
select distinct 'GRANT '||privilege||' ON '||OWNER||'.'||TABLE_NAME||' TO '||RP.GRANTEE
from DBA_ROLE_PRIVS RP join ROLE_TAB_PRIVS RTP
on (RP.GRANTED_ROLE = RTP.role)
where (OWNER in ('YOUR USER') --Change User Name
OR RP.GRANTEE in ('YOUR USER')) --Change User Name
and RP.GRANTEE not in ('SYS', 'SYSTEM')
;
It sounds like something like the below will suit your needs:
With Sheets("Sheet1")
.Rows( X & ":" & .Rows.Count).Delete
End With
Where X is a variable that = the row number ( 415 )
DSM has the accepted answer, but the coding doesn't seem to work for everyone. Here is one that works with the current version of pandas (0.23.4 as of 8/2018):
import pandas as pd
df = pd.DataFrame({'col1': [1, 2, 2, 3, 1],
'col2': ['negative', 'positive', 'neutral', 'neutral', 'positive']})
conversion_dict = {'negative': -1, 'neutral': 0, 'positive': 1}
df['converted_column'] = df['col2'].replace(conversion_dict)
print(df.head())
You'll see it looks like:
col1 col2 converted_column
0 1 negative -1
1 2 positive 1
2 2 neutral 0
3 3 neutral 0
4 1 positive 1
The docs for pandas.DataFrame.replace are here.
Incremental history searching
in terminal enter:
gedit ~/.inputrc
then copy paste and save
"\e[A": history-search-backward
"\e[B": history-search-forward
"\e[C": forward-char
"\e[D": backward-char
all you need to do to find a previous command is to enter say the first 2 or 3 letters and upward arrow will take you there quickly say i want:
for f in *.mid ; do timidity "$f"; done
all i need to do is enter
fo
and hit upward arrow command will soon appear
jsFiddle:http://jsfiddle.net/7Laf8/1302/
I hope this answers your question.
.wrapper {_x000D_
text-align: center;_x000D_
display: inline-block;_x000D_
position: absolute;_x000D_
top: 50%;_x000D_
left: 50%;_x000D_
}
_x000D_
<div class="wrapper">_x000D_
<button class="button">Hello</button>_x000D_
<button class="button">Another One</button>_x000D_
</div>
_x000D_
Simple, use array_intersect()
instead:
$result = array_intersect($array1, $array2);
use some thing like
import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
//method to convert Document to String
public String getStringFromDocument(Document doc)
{
try
{
DOMSource domSource = new DOMSource(doc);
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.transform(domSource, result);
return writer.toString();
}
catch(TransformerException ex)
{
ex.printStackTrace();
return null;
}
}
not str(myString)
This expression is True for strings that are empty. Non-empty strings, None and non-string objects will all produce False, with the caveat that objects may override __str__ to thwart this logic by returning a falsy value.
Please refer to the glossary: hash()
is used as a shortcut to comparing objects, an object is deemed hashable if it can be compared to other objects. that is why we use hash()
. It's also used to access dict
and set
elements which are implemented as resizable hash tables in CPython.
hash()
function is an order of magnitude (or several) less expensive.If you read about how dictionaries are implemented, they use hash tables, which means deriving a key from an object is a corner stone for retrieving objects in dictionaries in O(1)
. That's however very dependent on your hash function to be collision-resistant. The worst case for getting an item in a dictionary is actually O(n)
.
On that note, mutable objects are usually not hashable. The hashable property means you can use an object as a key. If the hash value is used as a key and the contents of that same object change, then what should the hash function return? Is it the same key or a different one? It depends on how you define your hash function.
Imagine we have this class:
>>> class Person(object):
... def __init__(self, name, ssn, address):
... self.name = name
... self.ssn = ssn
... self.address = address
... def __hash__(self):
... return hash(self.ssn)
... def __eq__(self, other):
... return self.ssn == other.ssn
...
Please note: this is all based on the assumption that the SSN never changes for an individual (don't even know where to actually verify that fact from authoritative source).
And we have Bob:
>>> bob = Person('bob', '1111-222-333', None)
Bob goes to see a judge to change his name:
>>> jim = Person('jim bo', '1111-222-333', 'sf bay area')
This is what we know:
>>> bob == jim
True
But these are two different objects with different memory allocated, just like two different records of the same person:
>>> bob is jim
False
Now comes the part where hash() is handy:
>>> dmv_appointments = {}
>>> dmv_appointments[bob] = 'tomorrow'
Guess what:
>>> dmv_appointments[jim] #?
'tomorrow'
From two different records you are able to access the same information. Now try this:
>>> dmv_appointments[hash(jim)]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 9, in __eq__
AttributeError: 'int' object has no attribute 'ssn'
>>> hash(jim) == hash(hash(jim))
True
What just happened? That's a collision. Because hash(jim) == hash(hash(jim))
which are both integers btw, we need to compare the input of __getitem__
with all items that collide. The builtin int
does not have an ssn
attribute so it trips.
>>> del Person.__eq__
>>> dmv_appointments[bob]
'tomorrow'
>>> dmv_appointments[jim]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: <__main__.Person object at 0x7f611bd37110>
In this last example, I show that even with a collision, the comparison is performed, the objects are no longer equal, which means it successfully raises a KeyError
.
Somebody asked me to post a link to the framework! that I presented at Open World 2012. This is the full blog post that demonstrates how to architect a solution with external tables.
One important point that is alluded to but not directly addressed is the difference between "precision" and "scale" and how they are used in the two statements. "precision" is the total number of significant digits in a number. "scale" is the number of digits to the right of the decimal point.
The MathContext constructor only accepts precision and RoundingMode as arguments, and therefore scale is never specified in the first statement.
setScale()
obviously accepts scale as an argument, as well as RoundingMode, however precision is never specified in the second statement.
If you move the decimal point one place to the right, the difference will become clear:
// 1.
new BigDecimal("35.3456").round(new MathContext(4, RoundingMode.HALF_UP));
//result = 35.35
// 2.
new BigDecimal("35.3456").setScale(4, RoundingMode.HALF_UP);
// result = 35.3456
You can use with jQuery
jQuery(window).load(function(){
jQuery("html,body").animate({scrollTop: 100}, 1000);
});
Use the namespace System.Net.Mail. Here is a link to the MSDN page
You can send emails using SmtpClient class.
I paraphrased the code sample, so checkout MSDNfor details.
MailMessage message = new MailMessage(
"[email protected]",
"[email protected]",
"Subject goes here",
"Body goes here");
SmtpClient client = new SmtpClient(server);
client.Send(message);
The best way to send many emails would be to put something like this in forloop and send away!
I know this is an older issue, but I recently had the same problem and was having issues resolving it, despite attempting the DisplayUnlockCaptcha fix. This is how I got it alive.
Head over to Account Security Settings (https://www.google.com/settings/security/lesssecureapps) and enable "Access for less secure apps", this allows you to use the google smtp for clients other than the official ones.
Update
Google has been so kind as to list all the potential problems and fixes for us. Although I recommend trying the less secure apps setting. Be sure you are applying these to the correct account.
- If you've turned on 2-Step Verification for your account, you might need to enter an App password instead of your regular password.
- Sign in to your account from the web version of Gmail at https://mail.google.com. Once you’re signed in, try signing in
to the mail app again.- Visit http://www.google.com/accounts/DisplayUnlockCaptcha and sign in with your Gmail username and password. If asked, enter the
letters in the distorted picture.- Your app might not support the latest security standards. Try changing a few settings to allow less secure apps access to your account.
- Make sure your mail app isn't set to check for new email too often. If your mail app checks for new messages more than once every 10
minutes, the app’s access to your account could be blocked.
If your version of PHP does not include this function:
<?php
function http_response_code($code = NULL) {
if ($code !== NULL) {
switch ($code) {
case 100: $text = 'Continue';
break;
case 101: $text = 'Switching Protocols';
break;
case 200: $text = 'OK';
break;
case 201: $text = 'Created';
break;
case 202: $text = 'Accepted';
break;
case 203: $text = 'Non-Authoritative Information';
break;
case 204: $text = 'No Content';
break;
case 205: $text = 'Reset Content';
break;
case 206: $text = 'Partial Content';
break;
case 300: $text = 'Multiple Choices';
break;
case 301: $text = 'Moved Permanently';
break;
case 302: $text = 'Moved Temporarily';
break;
case 303: $text = 'See Other';
break;
case 304: $text = 'Not Modified';
break;
case 305: $text = 'Use Proxy';
break;
case 400: $text = 'Bad Request';
break;
case 401: $text = 'Unauthorized';
break;
case 402: $text = 'Payment Required';
break;
case 403: $text = 'Forbidden';
break;
case 404: $text = 'Not Found';
break;
case 405: $text = 'Method Not Allowed';
break;
case 406: $text = 'Not Acceptable';
break;
case 407: $text = 'Proxy Authentication Required';
break;
case 408: $text = 'Request Time-out';
break;
case 409: $text = 'Conflict';
break;
case 410: $text = 'Gone';
break;
case 411: $text = 'Length Required';
break;
case 412: $text = 'Precondition Failed';
break;
case 413: $text = 'Request Entity Too Large';
break;
case 414: $text = 'Request-URI Too Large';
break;
case 415: $text = 'Unsupported Media Type';
break;
case 500: $text = 'Internal Server Error';
break;
case 501: $text = 'Not Implemented';
break;
case 502: $text = 'Bad Gateway';
break;
case 503: $text = 'Service Unavailable';
break;
case 504: $text = 'Gateway Time-out';
break;
case 505: $text = 'HTTP Version not supported';
break;
default:
exit('Unknown http status code "' . htmlentities($code) . '"');
break;
}
$protocol = (isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');
header($protocol . ' ' . $code . ' ' . $text);
$GLOBALS['http_response_code'] = $code;
} else {
$code = (isset($GLOBALS['http_response_code']) ? $GLOBALS['http_response_code'] : 200);
}
return $code;
}
UPDATE 15.3.2017:
I have opened a Django-issue on this and it seems to be preliminary accepted here: https://code.djangoproject.com/ticket/27825
My experience is that when using the Constructor
(ORM
) class by references with Django 1.10.5
there might be some inconsistencies in the data (i.e. the attributes of the created object may get the type of the input data instead of the casted type of the ORM object property)
example:
models
class Payment(models.Model):
amount_cash = models.DecimalField()
some_test.py
- object.create
Class SomeTestCase:
def generate_orm_obj(self, _constructor, base_data=None, modifiers=None):
objs = []
if not base_data:
base_data = {'amount_case': 123.00}
for modifier in modifiers:
actual_data = deepcopy(base_data)
actual_data.update(modifier)
# Hacky fix,
_obj = _constructor.objects.create(**actual_data)
print(type(_obj.amount_cash)) # Decimal
assert created
objs.append(_obj)
return objs
some_test.py
- Constructor()
Class SomeTestCase:
def generate_orm_obj(self, _constructor, base_data=None, modifiers=None):
objs = []
if not base_data:
base_data = {'amount_case': 123.00}
for modifier in modifiers:
actual_data = deepcopy(base_data)
actual_data.update(modifier)
# Hacky fix,
_obj = _constructor(**actual_data)
print(type(_obj.amount_cash)) # Float
assert created
objs.append(_obj)
return objs