Python 2.7 getting user input and manipulating as string without quotations
testVar = raw_input("Ask user for something.")
Java 32-bit vs 64-bit compatibility
Unless you have native code (machine code compiled for a specific arcitechture) your code will run equally well in a 32-bit and 64-bit JVM.
Note, however, that due to the larger adresses (32-bit is 4 bytes, 64-bit is 8 bytes) a 64-bit JVM will require more memory than a 32-bit JVM for the same task.
How should I do integer division in Perl?
Integer division $x divided by $y ...
$z = -1 & $x / $y
How does it work?
$x / $y
return the floating point division
&
perform a bit-wise AND
-1
stands for
&HFFFFFFFF
for the largest integer ... whence
$z = -1 & $x / $y
gives the integer division ...
Clear dropdownlist with JQuery
I tried both .empty() as well as .remove() for my dropdown and both were slow. Since I had almost 4,000 options there.
I used .html("") which is much faster in my condition.
Which is below
$(dropdown).html("");
Create an ISO date object in javascript
In node, the Mongo driver will give you an ISO string, not the object. (ex: Mon Nov 24 2014 01:30:34 GMT-0800 (PST)) So, simply convert it to a js Date by: new Date(ISOString);
How to reload a page using Angularjs?
Be sure to include the $route service into your scope and do this:
$route.reload();
See this:
Styling a input type=number
I've been struggling with this on mobile and tablet. My solution was to use absolute positioning on the spinners, so I'm just posting it in case it helps anyone else:
<html><head>_x000D_
<style>_x000D_
body {padding: 10px;margin: 10px}_x000D_
input[type=number] {_x000D_
/*for absolutely positioning spinners*/_x000D_
position: relative; _x000D_
padding: 5px;_x000D_
padding-right: 25px;_x000D_
}_x000D_
_x000D_
input[type=number]::-webkit-inner-spin-button,_x000D_
input[type=number]::-webkit-outer-spin-button {_x000D_
opacity: 1;_x000D_
}_x000D_
_x000D_
input[type=number]::-webkit-outer-spin-button, _x000D_
input[type=number]::-webkit-inner-spin-button {_x000D_
-webkit-appearance: inner-spin-button !important;_x000D_
width: 25px;_x000D_
position: absolute;_x000D_
top: 0;_x000D_
right: 0;_x000D_
height: 100%;_x000D_
}_x000D_
</style>_x000D_
<meta name="apple-mobile-web-app-capable" content="yes"/>_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=0"/>_x000D_
</head>_x000D_
<body >_x000D_
<input type="number" value="1" step="1" />_x000D_
_x000D_
</body></html>Return True, False and None in Python
It's impossible to say without seeing your actual code. Likely the reason is a code path through your function that doesn't execute a return statement. When the code goes down that path, the function ends with no value returned, and so returns None.
Updated: It sounds like your code looks like this:
def b(self, p, data):
current = p
if current.data == data:
return True
elif current.data == 1:
return False
else:
self.b(current.next, data)
That else clause is your None path. You need to return the value that the recursive call returns:
else:
return self.b(current.next, data)
BTW: using recursion for iterative programs like this is not a good idea in Python. Use iteration instead. Also, you have no clear termination condition.
Angular 2: Can't bind to 'ngModel' since it isn't a known property of 'input'
It's described on the Angular tutorial: https://angular.io/tutorial/toh-pt1#the-missing-formsmodule
You have to import FormsModule and add it to imports in your @NgModule declaraction.
import { FormsModule } from '@angular/forms';
@NgModule({
declarations: [
AppComponent,
DynamicConfigComponent
],
imports: [
BrowserModule,
AppRoutingModule,
FormsModule
],
providers: [],
bootstrap: [AppComponent]
})
Jenkins - how to build a specific branch
I don't think you can both within the same jenkins job, what you need to do is to configure a new jenkins job which will have access to your github to retrieve branches and then you can choose which one to manually build.
Just mark it as a parameterized build, specify a name, and a parameter configured as git parameter
and now you can configure git options:
Can scripts be inserted with innerHTML?
You could do it like this:
var mydiv = document.getElementById("mydiv");
var content = "<script>alert(\"hi\");<\/script>";
mydiv.innerHTML = content;
var scripts = mydiv.getElementsByTagName("script");
for (var i = 0; i < scripts.length; i++) {
eval(scripts[i].innerText);
}
How to validate a form with multiple checkboxes to have atleast one checked
I checked all answers and even in other similar questions, I tried to find optimal way with help of html class and custom rule.
my html structure for multiple checkboxes are like this
$.validator.addMethod('multicheckbox_rule', function (value, element) {_x000D_
var $parent = $(element).closest('.checkbox_wrapper');_x000D_
if($parent.find('.checkbox_item').is(':checked')) return true;_x000D_
return false;_x000D_
}, 'Please at least select one');<div class="checkbox_wrapper">_x000D_
<label for="checkbox-1"><input class="checkbox_item" id="checkbox-1" name="checkbox_item[1]" type="checkbox" value="1" data-rule-multicheckbox_rule="1" /> Checkbox_item 1</label>_x000D_
<label for="checkbox-2"><input class="checkbox_item" id="checkbox-2" name="checkbox_item[2]" type="checkbox" value="1" data-rule-multicheckbox_rule="1" /> Checkbox_item 1</label>_x000D_
</div>Create Git branch with current changes
If you hadn't made any commit yet, only (1: branch) and (3: checkout) would be enough.
Or, in one command: git checkout -b newBranch
As mentioned in the git reset man page:
$ git branch topic/wip # (1)
$ git reset --hard HEAD~3 # (2) NOTE: use $git reset --soft HEAD~3 (explanation below)
$ git checkout topic/wip # (3)
- You have made some commits, but realize they were premature to be in the "
master" branch. You want to continue polishing them in a topic branch, so create "topic/wip" branch off of the currentHEAD. - Rewind the
masterbranch to get rid of those three commits. - Switch to "
topic/wip" branch and keep working.
Note: due to the "destructive" effect of a git reset --hard command (it does resets the index and working tree. Any changes to tracked files in the working tree since <commit> are discarded), I would rather go with:
$ git reset --soft HEAD~3 # (2)
This would make sure I'm not losing any private file (not added to the index).
The --soft option won't touch the index file nor the working tree at all (but resets the head to <commit>, just like all modes do).
With Git 2.23+, the new command git switch would create the branch in one line (with the same kind of reset --hard, so beware of its effect):
git switch -f -c topic/wip HEAD~3
Is there a need for range(len(a))?
Short answer: mathematically speaking, no, in practical terms, yes, for example for Intentional Programming.
Technically, the answer would be "no, it's not needed" because it's expressible using other constructs. But in practice, I use for i in range(len(a) (or for _ in range(len(a)) if I don't need the index) to make it explicit that I want to iterate as many times as there are items in a sequence without needing to use the items in the sequence for anything.
So: "Is there a need?"? — yes, I need it to express the meaning/intent of the code for readability purposes.
See also: https://en.wikipedia.org/wiki/Intentional_programming
And obviously, if there is no collection that is associated with the iteration at all, for ... in range(len(N)) is the only option, so as to not resort to i = 0; while i < N; i += 1 ...
convert from Color to brush
SolidColorBrush brush = new SolidColorBrush( Color.FromArgb(255,255,139,0) )
How do I create a self-signed certificate for code signing on Windows?
Updated Answer
If you are using the following Windows versions or later: Windows Server 2012, Windows Server 2012 R2, or Windows 8.1 then MakeCert is now deprecated, and Microsoft recommends using the PowerShell Cmdlet New-SelfSignedCertificate.
If you're using an older version such as Windows 7, you'll need to stick with MakeCert or another solution. Some people suggest the Public Key Infrastructure Powershell (PSPKI) Module.
Original Answer
While you can create a self-signed code-signing certificate (SPC - Software Publisher Certificate) in one go, I prefer to do the following:
Creating a self-signed certificate authority (CA)
makecert -r -pe -n "CN=My CA" -ss CA -sr CurrentUser ^
-a sha256 -cy authority -sky signature -sv MyCA.pvk MyCA.cer
(^ = allow batch command-line to wrap line)
This creates a self-signed (-r) certificate, with an exportable private key (-pe). It's named "My CA", and should be put in the CA store for the current user. We're using the SHA-256 algorithm. The key is meant for signing (-sky).
The private key should be stored in the MyCA.pvk file, and the certificate in the MyCA.cer file.
Importing the CA certificate
Because there's no point in having a CA certificate if you don't trust it, you'll need to import it into the Windows certificate store. You can use the Certificates MMC snapin, but from the command line:
certutil -user -addstore Root MyCA.cer
Creating a code-signing certificate (SPC)
makecert -pe -n "CN=My SPC" -a sha256 -cy end ^
-sky signature ^
-ic MyCA.cer -iv MyCA.pvk ^
-sv MySPC.pvk MySPC.cer
It is pretty much the same as above, but we're providing an issuer key and certificate (the -ic and -iv switches).
We'll also want to convert the certificate and key into a PFX file:
pvk2pfx -pvk MySPC.pvk -spc MySPC.cer -pfx MySPC.pfx
If you want to protect the PFX file, add the -po switch, otherwise PVK2PFX creates a PFX file with no passphrase.
Using the certificate for signing code
signtool sign /v /f MySPC.pfx ^
/t http://timestamp.url MyExecutable.exe
(See why timestamps may matter)
If you import the PFX file into the certificate store (you can use PVKIMPRT or the MMC snapin), you can sign code as follows:
signtool sign /v /n "Me" /s SPC ^
/t http://timestamp.url MyExecutable.exe
Some possible timestamp URLs for signtool /t are:
http://timestamp.verisign.com/scripts/timstamp.dllhttp://timestamp.globalsign.com/scripts/timstamp.dllhttp://timestamp.comodoca.com/authenticode
Full Microsoft documentation
Downloads
For those who are not .NET developers, you will need a copy of the Windows SDK and .NET framework. A current link is available here: SDK & .NET (which installs makecert in C:\Program Files\Microsoft SDKs\Windows\v7.1). Your mileage may vary.
MakeCert is available from the Visual Studio Command Prompt. Visual Studio 2015 does have it, and it can be launched from the Start Menu in Windows 7 under "Developer Command Prompt for VS 2015" or "VS2015 x64 Native Tools Command Prompt" (probably all of them in the same folder).
Cannot assign requested address using ServerSocket.socketBind
As the error states, it can't bind - which typically means it's in use by another process. From a command line run:
netstat -a -n -o
Interrogate the output for port 9999 in use in the left hand column.
For more information: http://www.zdnetasia.com/see-what-process-is-using-a-tcp-port-62047950.htm
The correct way to read a data file into an array
Tie::File is what you need:
Synopsis
# This file documents Tie::File version 0.98 use Tie::File; tie @array, 'Tie::File', 'filename' or die ...; $array[13] = 'blah'; # line 13 of the file is now 'blah' print $array[42]; # display line 42 of the file $n_recs = @array; # how many records are in the file? $#array -= 2; # chop two records off the end for (@array) { s/PERL/Perl/g; # Replace PERL with Perl everywhere in the file } # These are just like regular push, pop, unshift, shift, and splice # Except that they modify the file in the way you would expect push @array, new recs...; my $r1 = pop @array; unshift @array, new recs...; my $r2 = shift @array; @old_recs = splice @array, 3, 7, new recs...; untie @array; # all finished
JavaScript Array splice vs slice
slice does not change original array it return new array but splice changes the original array.
example: var arr = [1,2,3,4,5,6,7,8];
arr.slice(1,3); // output [2,3] and original array remain same.
arr.splice(1,3); // output [2,3,4] and original array changed to [1,5,6,7,8].
splice method second argument is different from slice method. second argument in splice represent count of elements to remove and in slice it represent end index.
arr.splice(-3,-1); // output [] second argument value should be greater then
0.
arr.splice(-3,-1); // output [6,7] index in minus represent start from last.
-1 represent last element so it start from -3 to -1. Above are major difference between splice and slice method.
Download multiple files with a single action
To solve this, I created a JS library to stream multiple files directly into a zip on the client-side. The main unique feature is that it has no size limits from memory (everything is streamed) nor zip format (it uses zip64 if the contents are more than 4GB).
Since it doesn't do compression, it is also very performant.
Excel VBA: Copying multiple sheets into new workbook
Try do something like this (the problem was that you trying to use MyBook.Worksheets, but MyBook is not a Workbook object, but string, containing workbook name. I've added new varible Set WB = ActiveWorkbook, so you can use WB.Worksheets instead MyBook.Worksheets):
Sub NewWBandPasteSpecialALLSheets()
MyBook = ActiveWorkbook.Name ' Get name of this book
Workbooks.Add ' Open a new workbook
NewBook = ActiveWorkbook.Name ' Save name of new book
Workbooks(MyBook).Activate ' Back to original book
Set WB = ActiveWorkbook
Dim SH As Worksheet
For Each SH In WB.Worksheets
SH.Range("WholePrintArea").Copy
Workbooks(NewBook).Activate
With SH.Range("A1")
.PasteSpecial (xlPasteColumnWidths)
.PasteSpecial (xlFormats)
.PasteSpecial (xlValues)
End With
Next
End Sub
But your code doesn't do what you want: it doesen't copy something to a new WB. So, the code below do it for you:
Sub NewWBandPasteSpecialALLSheets()
Dim wb As Workbook
Dim wbNew As Workbook
Dim sh As Worksheet
Dim shNew As Worksheet
Set wb = ThisWorkbook
Workbooks.Add ' Open a new workbook
Set wbNew = ActiveWorkbook
On Error Resume Next
For Each sh In wb.Worksheets
sh.Range("WholePrintArea").Copy
'add new sheet into new workbook with the same name
With wbNew.Worksheets
Set shNew = Nothing
Set shNew = .Item(sh.Name)
If shNew Is Nothing Then
.Add After:=.Item(.Count)
.Item(.Count).Name = sh.Name
Set shNew = .Item(.Count)
End If
End With
With shNew.Range("A1")
.PasteSpecial (xlPasteColumnWidths)
.PasteSpecial (xlFormats)
.PasteSpecial (xlValues)
End With
Next
End Sub
How do I show a "Loading . . . please wait" message in Winforms for a long loading form?
Another way of making "Loading screen" only display at certain time is, put it before the event and dismiss it after event finished doing it's job.
For example: you want to display a loading form for an event of saving result as MS Excel file and dismiss it after finished processing, do as follows:
LoadingWindow loadingWindow = new LoadingWindow();
try
{
loadingWindow.Show();
this.exportToExcelfile();
loadingWindow.Close();
}
catch (Exception ex)
{
MessageBox.Show("Exception EXPORT: " + ex.Message);
}
Or you can put loadingWindow.Close() inside finally block.
error: passing xxx as 'this' argument of xxx discards qualifiers
Let's me give a more detail example. As to the below struct:
struct Count{
uint32_t c;
Count(uint32_t i=0):c(i){}
uint32_t getCount(){
return c;
}
uint32_t add(const Count& count){
uint32_t total = c + count.getCount();
return total;
}
};
As you see the above, the IDE(CLion), will give tips Non-const function 'getCount' is called on the const object. In the method add count is declared as const object, but the method getCount is not const method, so count.getCount() may change the members in count.
Compile error as below(core message in my compiler):
error: passing 'const xy_stl::Count' as 'this' argument discards qualifiers [-fpermissive]
To solve the above problem, you can:
- change the method
uint32_t getCount(){...}touint32_t getCount() const {...}. Socount.getCount()won't change the members incount.
or
- change
uint32_t add(const Count& count){...}touint32_t add(Count& count){...}. Socountdon't care about changing members in it.
As to you problem, objects in the std::set are stored as const StudentT, but the method getId and getName are not const, so you give the above error.
You can also see this question Meaning of 'const' last in a function declaration of a class? for more detail.
Target class controller does not exist - Laravel 8
In laravel-8 you can use like this
Route::group(['namespace'=>'App\Http\Controllers', 'prefix'=>'admin',
'as'=>'admin.','middleware'=>['auth:sanctum', 'verified']], function()
{
Route::resource('/dashboard', 'DashboardController')->only([
'index'
]);
});
Thanks
How can prepared statements protect from SQL injection attacks?
Root Cause #1 - The Delimiter Problem
Sql injection is possible because we use quotation marks to delimit strings and also to be parts of strings, making it impossible to interpret them sometimes. If we had delimiters that could not be used in string data, sql injection never would have happened. Solving the delimiter problem eliminates the sql injection problem. Structure queries do that.
Root Cause #2 - Human Nature, People are Crafty and Some Crafty People Are Malicious And All People Make Mistakes
The other root cause of sql injection is human nature. People, including programmers, make mistakes. When you make a mistake on a structured query, it does not make your system vulnerable to sql injection. If you are not using structured queries, mistakes can generate sql injection vulnerability.
How Structured Queries Resolve the Root Causes of SQL Injection
Structured Queries Solve The Delimiter Problem, by by putting sql commands in one statement and putting the data in a separate programming statement. Programming statements create the separation needed.
Structured queries help prevent human error from creating critical security holes. With regard to humans making mistakes, sql injection cannot happen when structure queries are used. There are ways of preventing sql injection that don't involve structured queries, but normal human error in that approaches usually leads to at least some exposure to sql injection. Structured Queries are fail safe from sql injection. You can make all the mistakes in the world, almost, with structured queries, same as any other programming, but none that you can make can be turned into a ssstem taken over by sql injection. That is why people like to say this is the right way to prevent sql injection.
So, there you have it, the causes of sql injection and the nature structured queries that makes them impossible when they are used.
How to open adb and use it to send commands
The adb tool can be found in sdk/platform-tools/
If you don't see this directory in your SDK, launch the SDK Manager and install "Android SDK Platform-tools"
Also update your PATH environment variable to include the platform-tools/ directory, so you can execute adb from any location.
Stored procedure with default parameters
I'd do this one of two ways. Since you're setting your start and end dates in your t-sql code, i wouldn't ask for parameters in the stored proc
Option 1
Create Procedure [Test] AS
DECLARE @StartDate varchar(10)
DECLARE @EndDate varchar(10)
Set @StartDate = '201620' --Define start YearWeek
Set @EndDate = (SELECT CAST(DATEPART(YEAR,getdate()) AS varchar(4)) + CAST(DATEPART(WEEK,getdate())-1 AS varchar(2)))
SELECT
*
FROM
(SELECT DISTINCT [YEAR],[WeekOfYear] FROM [dbo].[DimDate] WHERE [Year]+[WeekOfYear] BETWEEN @StartDate AND @EndDate ) dimd
LEFT JOIN [Schema].[Table1] qad ON (qad.[Year]+qad.[Week of the Year]) = (dimd.[Year]+dimd.WeekOfYear)
Option 2
Create Procedure [Test] @StartDate varchar(10),@EndDate varchar(10) AS
SELECT
*
FROM
(SELECT DISTINCT [YEAR],[WeekOfYear] FROM [dbo].[DimDate] WHERE [Year]+[WeekOfYear] BETWEEN @StartDate AND @EndDate ) dimd
LEFT JOIN [Schema].[Table1] qad ON (qad.[Year]+qad.[Week of the Year]) = (dimd.[Year]+dimd.WeekOfYear)
Then run exec test '2016-01-01','2016-01-25'
Conda: Installing / upgrading directly from github
I found a reference to this in condas issues. The following should now work.
name: sample_env
channels:
dependencies:
- requests
- bokeh>=0.10.0
- pip:
- git+https://github.com/pythonforfacebook/facebook-sdk.git
Change directory in PowerShell
You can simply type Q: and that should solve your problem.
How can I generate random number in specific range in Android?
int min = 65;
int max = 80;
Random r = new Random();
int i1 = r.nextInt(max - min + 1) + min;
Note that nextInt(int max) returns an int between 0 inclusive and max exclusive. Hence the +1.
Call method in directive controller from other controller
You could also expose the directive's controller to the parent scope, like ngForm with name attribute does: http://docs.angularjs.org/api/ng.directive:ngForm
Here you could find a very basic example how it could be achieved http://plnkr.co/edit/Ps8OXrfpnePFvvdFgYJf?p=preview
In this example I have myDirective with dedicated controller with $clear method (sort of very simple public API for the directive). I can publish this controller to the parent scope and use call this method outside the directive.
How to remove an appended element with Jquery and why bind or live is causing elements to repeat
Do you have multiple Radio Buttons on the page..
Because what I see is that you are assigning the events to all the radio button's on the page when you click on a radio button
Can we use join for two different database tables?
You could use Synonyms part in the database.
Then in view wizard from Synonyms tab find your saved synonyms and add to view and set inner join simply.
How to split a String by space
Simple to Spit String by Space
String CurrentString = "First Second Last";
String[] separated = CurrentString.split(" ");
for (int i = 0; i < separated.length; i++) {
if (i == 0) {
Log.d("FName ** ", "" + separated[0].trim() + "\n ");
} else if (i == 1) {
Log.d("MName ** ", "" + separated[1].trim() + "\n ");
} else if (i == 2) {
Log.d("LName ** ", "" + separated[2].trim());
}
}
How to downgrade php from 5.5 to 5.3
Short answer is no.
XAMPP is normally built around a specific PHP version to ensure plugins and modules are all compatible and working correctly.
If your project specifically needs PHP 5.3 - the cleanest method is simply reinstalling an older version of XAMPP with PHP 5.3 packaged into it.
XAMPP 1.7.7 was their last update before moving off PHP 5.3.
How to get hex color value rather than RGB value?
Here is a version that also checks for transparent, I needed this since my object was to insert the result into a style attribute, where the transparent version of a hex color is actually the word "transparent"..
function rgb2hex(rgb) {
if ( rgb.search("rgb") == -1 ) {
return rgb;
}
else if ( rgb == 'rgba(0, 0, 0, 0)' ) {
return 'transparent';
}
else {
rgb = rgb.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(?:,\s*(\d+))?\)$/);
function hex(x) {
return ("0" + parseInt(x).toString(16)).slice(-2);
}
return "#" + hex(rgb[1]) + hex(rgb[2]) + hex(rgb[3]);
}
}
Format datetime to YYYY-MM-DD HH:mm:ss in moment.js
Use different format or pattern to get the information from the date
var myDate = new Date("2015-06-17 14:24:36");_x000D_
console.log(moment(myDate).format("YYYY-MM-DD HH:mm:ss"));_x000D_
console.log("Date: "+moment(myDate).format("YYYY-MM-DD"));_x000D_
console.log("Year: "+moment(myDate).format("YYYY"));_x000D_
console.log("Month: "+moment(myDate).format("MM"));_x000D_
console.log("Month: "+moment(myDate).format("MMMM"));_x000D_
console.log("Day: "+moment(myDate).format("DD"));_x000D_
console.log("Day: "+moment(myDate).format("dddd"));_x000D_
console.log("Time: "+moment(myDate).format("HH:mm")); // Time in24 hour format_x000D_
console.log("Time: "+moment(myDate).format("hh:mm A"));<script src="https://momentjs.com/downloads/moment.js"></script>For more info: https://momentjs.com/docs/#/parsing/string-format/
How to remove all null elements from a ArrayList or String Array?
list.removeAll(Collections.singleton(null));
It will Throws UnsupportedException if you use it on Arrays.asList because it give you Immutable copy so it can not be modified. See below the code. It creates Mutable copy and will not throw any exception.
public static String[] clean(final String[] v) {
List<String> list = new ArrayList<String>(Arrays.asList(v));
list.removeAll(Collections.singleton(null));
return list.toArray(new String[list.size()]);
}
Way to get number of digits in an int?
int num = 02300;
int count = 0;
while(num>0){
if(num == 0) break;
num=num/10;
count++;
}
System.out.println(count);
Changing button text onclick
This worked fine for me. I had multiple buttons which I wanted to toggle the input value text from 'Add Range' to 'Remove Range'
<input type="button" onclick="if(this.value=='Add Range') { this.value='Remove Range'; } else { this.value='Add Range'; }" />
Sending mail attachment using Java
Using Spring Framework , you can add many attachments :
package com.mkyong.common;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.MailParseException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
public class MailMail
{
private JavaMailSender mailSender;
private SimpleMailMessage simpleMailMessage;
public void setSimpleMailMessage(SimpleMailMessage simpleMailMessage) {
this.simpleMailMessage = simpleMailMessage;
}
public void setMailSender(JavaMailSender mailSender) {
this.mailSender = mailSender;
}
public void sendMail(String dear, String content) {
MimeMessage message = mailSender.createMimeMessage();
try{
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(simpleMailMessage.getFrom());
helper.setTo(simpleMailMessage.getTo());
helper.setSubject(simpleMailMessage.getSubject());
helper.setText(String.format(
simpleMailMessage.getText(), dear, content));
FileSystemResource file = new FileSystemResource("/home/abdennour/Documents/cv.pdf");
helper.addAttachment(file.getFilename(), file);
}catch (MessagingException e) {
throw new MailParseException(e);
}
mailSender.send(message);
}
}
To know how to configure your project to deal with this code , complete reading this tutorial .
Switch statement for string matching in JavaScript
Self-contained version that increases job security:
switch((s.match(r)||[null])[0])
function identifyCountry(hostname,only_gov=false){
const exceptionRe = /^(?:uk|ac|eu)$/ ; //https://en.wikipedia.org/wiki/Country_code_top-level_domain#ASCII_ccTLDs_not_in_ISO_3166-1
const h = hostname.split('.');
const len = h.length;
const tld = h[len-1];
const sld = len >= 2 ? h[len-2] : null;
if( tld.length == 2 ) {
if( only_gov && sld != 'gov' ) return null;
switch( ( tld.match(exceptionRe) || [null] )[0] ) {
case 'uk':
//Britain owns+uses this one
return 'gb';
case 'ac':
//Ascension Island is part of the British Overseas territory
//"Saint Helena, Ascension and Tristan da Cunha"
return 'sh';
case null:
//2-letter TLD *not* in the exception list;
//it's a valid ccTLD corresponding to its country
return tld;
default:
//2-letter TLD *in* the exception list (e.g.: .eu);
//it's not a valid ccTLD and we don't know the country
return null;
}
} else if( tld == 'gov' ) {
//AMERICAAA
return 'us';
} else {
return null;
}
}<p>Click the following domains:</p>
<ul onclick="console.log(`${identifyCountry(event.target.textContent)} <= ${event.target.textContent}`);">
<li>example.com</li>
<li>example.co.uk</li>
<li>example.eu</li>
<li>example.ca</li>
<li>example.ac</li>
<li>example.gov</li>
</ul>Honestly, though, you could just do something like
function switchableMatch(s,r){
//returns the FIRST match of r on s; otherwise, null
const m = s.match(r);
if(m) return m[0];
else return null;
}
and then later switch(switchableMatch(s,r)){…}
grep --ignore-case --only
It should be a problem in your version of grep.
Your test cases are working correctly here on my machine:
$ echo "abc" | grep -io abc
abc
$ echo "ABC" | grep -io abc
ABC
And my version is:
$ grep --version
grep (GNU grep) 2.10
Eclipse HotKey: how to switch between tabs?
Custom KeyBinding sequence example : CTRL + TAB to switch between visilble Modules or Editors Forward direction using Eclipse RCP.
you press CTRL + TAB second time to open another editor and close previous editor using RCP Eclipse.
package rcp_demo.Toolbar;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;
import rcp_demo.Editor.EmployeeEditor;
import rcp_demo.Editor.EmployeeEditorInput;
import rcp_demo.Editor.ProductEditor;
import rcp_demo.Editor.ProductEditorInput;
import rcp_demo.Editor.UserEditor;
import rcp_demo.Editor.UserEditorInput;
public class Forward_Editor extends AbstractHandler{
static String Editor_name; // Active Editor name store in Temporary
static int cnt; // close editor count this variable
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
IWorkbenchPage page = window.getActivePage();
UserEditorInput std_input = new UserEditorInput();
EmployeeEditorInput emp_input=new EmployeeEditorInput();
ProductEditorInput product_input=new ProductEditorInput();
IEditorReference[] editors = page.getEditorReferences();
//Blank Editor Window to execute..
if(editors.length==0)
{
//First time close editor can open Student_Editor
if(cnt==1 && Editor_name.equals("Student_Editor"))
{
try {
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("EMP>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First time close editor can open Employee_Editor
else if(cnt==1 && Editor_name.equals("Employee_Editor"))
{
try {
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("PRO>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {e.printStackTrace();
}
}
//First time close editor can open Product_Editor
else if(cnt==1 && Editor_name.equals("Product_Editor"))
{
try {
page.openEditor(std_input, UserEditor.ID);
System.out.println("student Editor open");
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("Close::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First Time call // empty editors
else{
try {
page.openEditor(std_input, UserEditor.ID);
System.out.println("student Editor open");
Editor_name=page.getActiveEditor().getTitle();
} catch (PartInitException e) {
e.printStackTrace();
}
}
}//End if condition
//AvtiveEditor(Student_Editor) close to open Employee Editor
else if(page.getActiveEditor().getTitle().equals("Student_Editor"))
{
try {
//page.closeAllEditors(true);
page.closeEditor(page.getActiveEditor(), true);
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("EMP>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//AvtiveEditor(Employee_Editor) close to open Product Editor
else if(page.getActiveEditor().getTitle().equals("Employee_Editor"))
{
try {
page.closeAllEditors(true);
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("PRO>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//AvtiveEditor(Product_Editor) close to open Student Editor
else if(page.getActiveEditor().getTitle().equals("Product_Editor"))
{
try {
page.closeAllEditors(true);
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("stud>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//by default open Student Editor
else
{
try {
page.closeAllEditors(true);
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("stud_else>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
return null;
}
}
>Custom KeyBinding sequence example : <kbd> SHIFT + TAB </kbd> to switch between visilble Modules or Editors **Backword** direction using Eclipse RCP.
package rcp_demo.Toolbar;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;
import rcp_demo.Editor.EmployeeEditor;
import rcp_demo.Editor.EmployeeEditorInput;
import rcp_demo.Editor.ProductEditor;
import rcp_demo.Editor.ProductEditorInput;
import rcp_demo.Editor.UserEditor;
import rcp_demo.Editor.UserEditorInput;
public class Backword_Editor extends AbstractHandler{
static String Editor_name; // Active Editor name store in Temporary
static int cnt;
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
IWorkbenchPage page = window.getActivePage();
//Three object create in EditorInput
UserEditorInput std_input = new UserEditorInput();
EmployeeEditorInput emp_input=new EmployeeEditorInput();
ProductEditorInput product_input=new ProductEditorInput();
IEditorReference[] editors = page.getEditorReferences();
System.out.println("Length : "+editors.length);
if(editors.length==0)
{
//First time close editor can open Student_Editor
if(cnt==1 && Editor_name.equals("Product_Editor"))
{
try {
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("EMP>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First time close editor can open Employee_Editor
else if(cnt==1 && Editor_name.equals("Employee_Editor"))
{
try {
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("Student>>Len:: "+editors.length+"..student::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First time close editor can open Product_Editor
else if(cnt==1 && Editor_name.equals("Student_Editor"))
{
try {
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("PRO>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First Time or empty editors to check this condition
else{
try {
page.openEditor(product_input,ProductEditor.ID);
System.out.println("product Editor open");
} catch (PartInitException e) {
e.printStackTrace();
}
}
}
//AvtiveEditor(Product_Editor) close to open Employee Editor
else if(page.getActiveEditor().getTitle().equals("Product_Editor"))
{
System.out.println("Product:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("Employee Editor open");
} catch (PartInitException e) {
e.printStackTrace();
}
}
//AvtiveEditor(Employee_Editor) close to open Student Editor
else if(page.getActiveEditor().getTitle().equals("Employee_Editor"))
{
System.out.println("Emp:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("student Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//AvtiveEditor(Student_Editor) close to open Product Editor
else if(page.getActiveEditor().getTitle().equals("Student_Editor"))
{
System.out.println("Product:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("product Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//by default open Student Editor
else
{
try {
page.closeAllEditors(true);
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("product Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
}
Custom KeyBinding sequence example : SHIFT + TAB to switch between visilble Modules or Editors Backword direction using Eclipse RCP.
package rcp_demo.Toolbar;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;
import rcp_demo.Editor.EmployeeEditor;
import rcp_demo.Editor.EmployeeEditorInput;
import rcp_demo.Editor.ProductEditor;
import rcp_demo.Editor.ProductEditorInput;
import rcp_demo.Editor.UserEditor;
import rcp_demo.Editor.UserEditorInput;
public class Backword_Editor extends AbstractHandler{
static String Editor_name; // Active Editor name store in Temporary
static int cnt;
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
IWorkbenchPage page = window.getActivePage();
//Three object create in EditorInput
UserEditorInput std_input = new UserEditorInput();
EmployeeEditorInput emp_input=new EmployeeEditorInput();
ProductEditorInput product_input=new ProductEditorInput();
IEditorReference[] editors = page.getEditorReferences();
System.out.println("Length : "+editors.length);
if(editors.length==0)
{
//First time close editor can open Student_Editor
if(cnt==1 && Editor_name.equals("Product_Editor"))
{
try {
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("EMP>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First time close editor can open Employee_Editor
else if(cnt==1 && Editor_name.equals("Employee_Editor"))
{
try {
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("Student>>Len:: "+editors.length+"..student::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First time close editor can open Product_Editor
else if(cnt==1 && Editor_name.equals("Student_Editor"))
{
try {
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("PRO>>Len:: "+editors.length+"..EDi::"+Editor_name);
} catch (PartInitException e) {
e.printStackTrace();
}
}
//First Time or empty editors to check this condition
else{
try {
page.openEditor(product_input,ProductEditor.ID);
System.out.println("product Editor open");
} catch (PartInitException e) {
e.printStackTrace();
}
}
}
//AvtiveEditor(Product_Editor) close to open Employee Editor
else if(page.getActiveEditor().getTitle().equals("Product_Editor"))
{
System.out.println("Product:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(emp_input, EmployeeEditor.Id);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("Employee Editor open");
} catch (PartInitException e) {
e.printStackTrace();
}
}
//AvtiveEditor(Employee_Editor) close to open Student Editor
else if(page.getActiveEditor().getTitle().equals("Employee_Editor"))
{
System.out.println("Emp:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(std_input, UserEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("student Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//AvtiveEditor(Student_Editor) close to open Product Editor
else if(page.getActiveEditor().getTitle().equals("Student_Editor"))
{
System.out.println("Product:: "+page.getActiveEditor().getTitle());
try {
page.closeAllEditors(true);
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("product Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//by default open Student Editor
else
{
try {
page.closeAllEditors(true);
page.openEditor(product_input,ProductEditor.ID);
cnt=1;
Editor_name=page.getActiveEditor().getTitle();
System.out.println("product Editor open");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
}
Key Sequence
M1 means CTRL
M2 means SHIFT
plugin.xml
<extension point="org.eclipse.ui.commands">
<command
defaultHandler="rcp_demo.Toolbar.Forward_Editor"
id="RCP_Demo.Toolbar.Forward_editor_open_cmd"
name="Forward_Editor">
</command>
<command
defaultHandler="rcp_demo.Toolbar.Backword_Editor"
id="RCP_Demo.Toolbar.backwards_editor_open_cmd"
name="Backword_Editor">
</command>
</extension>
<extension point="org.eclipse.ui.bindings">
<key
commandId="RCP_Demo.Toolbar.Forward_editor_open_cmd"
schemeId="org.eclipse.ui.defaultAcceleratorConfiguration"
sequence="M1+TAB">
</key>
<key
commandId="RCP_Demo.Toolbar.backwards_editor_open_cmd"
schemeId="org.eclipse.ui.defaultAcceleratorConfiguration"
sequence="M2+TAB">
</key>
</extension>
Jquery: how to trigger click event on pressing enter key
Are you trying to mimic a click on a button when the enter key is pressed? If so you may need to use the trigger syntax.
Try changing
$('input[name = butAssignProd]').click();
to
$('input[name = butAssignProd]').trigger("click");
If this isn't the problem then try taking a second look at your key capture syntax by looking at the solutions in this post: jQuery Event Keypress: Which key was pressed?
Reading large text files with streams in C#
You say you have been asked to show a progress bar while a large file is loading. Is that because the users genuinely want to see the exact % of file loading, or just because they want visual feedback that something is happening?
If the latter is true, then the solution becomes much simpler. Just do reader.ReadToEnd() on a background thread, and display a marquee-type progress bar instead of a proper one.
I raise this point because in my experience this is often the case. When you are writing a data processing program, then users will definitely be interested in a % complete figure, but for simple-but-slow UI updates, they are more likely to just want to know that the computer hasn't crashed. :-)
Django auto_now and auto_now_add
auto_now=True didn't work for me in Django 1.4.1, but the below code saved me. It's for timezone aware datetime.
from django.utils.timezone import get_current_timezone
from datetime import datetime
class EntryVote(models.Model):
voted_on = models.DateTimeField(auto_now=True)
def save(self, *args, **kwargs):
self.voted_on = datetime.now().replace(tzinfo=get_current_timezone())
super(EntryVote, self).save(*args, **kwargs)
How to include jQuery in ASP.Net project?
There are actually a few ways this can be done:
1: Download
You can download the latest version of jQuery and then include it in your page with a standard HTML script tag. This can be done within the master or an individual page.
HTML5
<script src="/scripts/jquery-2.1.0.min.js"></script>
HTML4
<script src="/scripts/jquery-2.1.0.min.js" type="text/javascript"></script>
2: Content Delivery Network
You can include jQuery to your site using a CDN (Content Delivery Network) such as Google's. This should help reduce page load times if the user has already visited a site using the same version from the same CDN.
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
3: NuGet Package Manager
Lastly, (my preferred) use NuGet which is shipped with Visual Studio and Visual Studio Express. This is accessed from right-clicking on your project and clicking Manage NuGet Packages.
NuGet is an open source Library Package Manager that comes as a Visual Studio extension and that makes it very easy to add, remove, and update external libraries in your Visual Studio projects and websites. Beginning ASP.NET 4.5 in C# and VB.NET, WROX, 2013
Once installed, a new Folder group will appear in your Solution Explorer called Scripts. Simply drag and drop the file you wish to include onto your page of choice.
This method is ideal for larger projects because if you choose to remove the files, or change versions later (though the package manager) if will automatically remove/update any reference to that file within your project.
The only downside to this approach is it does not use a CDN to host the file so page load time may be slightly slower the first time the user visits your site.
What ports need to be open for TortoiseSVN to authenticate (clear text) and commit?
What's the first part of your Subversion repository URL?
- If your URL looks like: http://subversion/repos/, then you're probably going over Port 80.
- If your URL looks like: https://subversion/repos/, then you're probably going over Port 443.
- If your URL looks like: svn://subversion/, then you're probably going over Port 3690.
- If your URL looks like: svn+ssh://subversion/repos/, then you're probably going over Port 22.
- If your URL contains a port number like: http://subversion/repos:8080, then you're using that port.
I can't guarantee the first four since it's possible to reconfigure everything to use different ports, of if you go through a proxy of some sort.
If you're using a VPN, you may have to configure your VPN client to reroute these to their correct ports. A lot of places don't configure their correctly VPNs to do this type of proxying. It's either because they have some sort of anal-retentive IT person who's being overly security conscious, or because they simply don't know any better. Even worse, they'll give you a client where this stuff can't be reconfigured.
The only way around that is to log into a local machine over the VPN, and then do everything from that system.
Amazon AWS Filezilla transfer permission denied
In my case, after 30 minutes changing permissions, got into account that the XLSX file I was trying to transfer was still open in Excel.
How can I completely uninstall nodejs, npm and node in Ubuntu
Those who installed node.js via the package manager can just run:
sudo apt-get purge nodejs
Optionally if you have installed it by adding the official NodeSource repository as stated in Installing Node.js via package manager, do:
sudo rm /etc/apt/sources.list.d/nodesource.list
If you want to clean up npm cache as well:
rm -rf ~/.npm
It is bad practice to try to remove things manually, as it can mess up the package manager, and the operating system itself. This answer is completely safe to follow
Program does not contain a static 'Main' method suitable for an entry point
As what, I guess pixparker wanted to say, but remained to be not clear enough, for me at least, do ensure that... All "Other Projects" have an "Output Type" of "Class Library" selected while... Only "One Project" being selected as either "Window Application" or "Console Application" output.
How to scanf only integer and repeat reading if the user enters non-numeric characters?
You could create a function that reads an integer between 1 and 23 or returns 0 if non-int
e.g.
int getInt()
{
int n = 0;
char buffer[128];
fgets(buffer,sizeof(buffer),stdin);
n = atoi(buffer);
return ( n > 23 || n < 1 ) ? 0 : n;
}
How to load/edit/run/save text files (.py) into an IPython notebook cell?
I have found it satisfactory to use ls and cd within ipython notebook to find the file. Then type cat your_file_name into the cell, and you'll get back the contents of the file, which you can then paste into the cell as code.
LINQ where clause with lambda expression having OR clauses and null values returning incomplete results
Try writting the lambda with the same conditions as the delegate. like this:
List<AnalysisObject> analysisObjects =
analysisObjectRepository.FindAll().Where(
(x =>
(x.ID == packageId)
|| (x.Parent != null && x.Parent.ID == packageId)
|| (x.Parent != null && x.Parent.Parent != null && x.Parent.Parent.ID == packageId)
).ToList();
jQuery datepicker, onSelect won't work
It should be "datepicker", not "datePicker" if you are using the jQuery UI DatePicker plugin. Perhaps, you have a different but similar plugin that doesn't support the select handler.
When restoring a backup, how do I disconnect all active connections?
I ran across this problem while automating a restore proccess in SQL Server 2008. My (successfull) approach was a mix of two of the answers provided.
First, I run across all the connections of said database, and kill them.
DECLARE @SPID int = (SELECT TOP 1 SPID FROM sys.sysprocess WHERE dbid = db_id('dbName'))
While @spid Is Not Null
Begin
Execute ('Kill ' + @spid)
Select @spid = top 1 spid from master.dbo.sysprocesses
where dbid = db_id('dbName')
End
Then, I set the database to a single_user mode
ALTER DATABASE dbName SET SINGLE_USER
Then, I run the restore...
RESTORE DATABASE and whatnot
Kill the connections again
(same query as above)
And set the database back to multi_user.
ALTER DATABASE dbName SET MULTI_USER
This way, I ensure that there are no connections holding up the database before setting to single mode, since the former will freeze if there are.
Cloning a private Github repo
I think it also worth to mention that in case the SSH protocol can not be used for some reason and modifying a private repository http(s) URL to provide basic authentication credentials is not an option either, there's an alternative as well.
The basic authentication header can be configured using http.extraHeader git-config option:
git config --global --unset-all "http.https://github.com/.extraheader"
git config --global --add "http.https://github.com/.extraheader" \
"AUTHORIZATION: Basic $(base64 <<< [access-token-string]:x-oauth-basic)"
Where [access-token-string] placeholder should be replaced (including square braces) with a generated real token value. You can read more about access tokens here and here.
If the configuration has been applied properly then the configured AUTHORIZATION header will be included in each HTTPS request to the github.com IP address accessed by git command.
String "true" and "false" to boolean
I don't think anything like that is built-in in Ruby. You can reopen String class and add to_bool method there:
class String
def to_bool
return true if self=="true"
return false if self=="false"
return nil
end
end
Then you can use it anywhere in your project, like this: params[:internal].to_bool
Is there any way to set environment variables in Visual Studio Code?
Assuming you mean for a debugging session(?) then you can include a env property in your launch configuration.
If you open the .vscode/launch.json file in your workspace or select Debug > Open Configurations then you should see a set of launch configurations for debugging your code. You can then add to it an env property with a dictionary of string:string.
Here is an example for an ASP.NET Core app from their standard web template setting the ASPNETCORE_ENVIRONMENT to Development :
{
"version": "0.2.0",
"configurations": [
{
"name": ".NET Core Launch (web)",
"type": "coreclr",
"request": "launch",
"preLaunchTask": "build",
// If you have changed target frameworks, make sure to update the program path.
"program": "${workspaceFolder}/bin/Debug/netcoreapp2.0/vscode-env.dll",
"args": [],
"cwd": "${workspaceFolder}",
"stopAtEntry": false,
"internalConsoleOptions": "openOnSessionStart",
"launchBrowser": {
"enabled": true,
"args": "${auto-detect-url}",
"windows": {
"command": "cmd.exe",
"args": "/C start ${auto-detect-url}"
},
"osx": {
"command": "open"
},
"linux": {
"command": "xdg-open"
}
},
"env": {
"ASPNETCORE_ENVIRONMENT": "Development"
},
"sourceFileMap": {
"/Views": "${workspaceFolder}/Views"
}
},
{
"name": ".NET Core Attach",
"type": "coreclr",
"request": "attach",
"processId": "${command:pickProcess}"
}
]
}
Twitter Bootstrap modal on mobile devices
Gil's answer holds promise (the library he linked to) --- but for the time being, it still doesn't work when scrolled down on the mobile device.
I solved the issue for myself using just a snippet of CSS at the end of my CSS files:
@media (max-width: 767px) {
#content .modal.fade.in {
top: 5%;
}
}
The #content selector is simply an id that wraps my html so I can override Bootstrap's specificity (set to your own id wrapping your modal html).
The downside: It's not centered vertically on the mobile devices.
The upside: It's visible, and on smaller devices, a reasonably sized modal will take up much of the screen, so the "non-centering" won't be as apparent.
Why it works:
When you're at low screen sizes with Bootstrap's responsive CSS, for devices with smaller screens, it sets .modal.fade.in's 'top' to 'auto'. For some reason the mobile webkit browsers seem to have a hard time with figuring out the vertical placement with the "auto" assignment. So just switch it back to a fixed value and it works great.
Since the modal is already set to postition: absolute, the value is relative to the viewport's height, not the document height, so it works no matter how long the page is or where you're scrolled to.
Location of the mongodb database on mac
If mongodb is installed via Homebrew the default location is:
/usr/local/var/mongodb
See the answer from @simonbogarde for the location of other interesting files that are different when using Homebrew.
How to remove extension from string (only real extension!)
From the manual, pathinfo:
<?php
$path_parts = pathinfo('/www/htdocs/index.html');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // Since PHP 5.2.0
?>
It doesn't have to be a complete path to operate properly. It will just as happily parse file.jpg as /path/to/my/file.jpg.
How to obtain the start time and end time of a day?
in getEndOfDay, you can add:
calendar.set(Calendar.MILLISECOND, 999);
Although mathematically speaking, you can't specify the end of a day other than by saying it's "before the beginning of the next day".
So instead of saying, if(date >= getStartOfDay(today) && date <= getEndOfDay(today)), you should say: if(date >= getStartOfDay(today) && date < getStartOfDay(tomorrow)). That is a much more solid definition (and you don't have to worry about millisecond precision).
Deserialize Java 8 LocalDateTime with JacksonMapper
You used wrong letter case for year in line:
@JsonFormat(pattern = "YYYY-MM-dd HH:mm")
Should be:
@JsonFormat(pattern = "yyyy-MM-dd HH:mm")
With this change everything is working as expected.
How do I print the percent sign(%) in c
there's no explanation in this topic why to print a percentage sign one must type %% and not for example escape character with percentage - \%.
from comp.lang.c FAQ list · Question 12.6 :
The reason it's tricky to print % signs with printf is that % is essentially printf's escape character. Whenever printf sees a %, it expects it to be followed by a character telling it what to do next. The two-character sequence %% is defined to print a single %.
To understand why \% can't work, remember that the backslash \ is the compiler's escape character, and controls how the compiler interprets source code characters at compile time. In this case, however, we want to control how printf interprets its format string at run-time. As far as the compiler is concerned, the escape sequence \% is undefined, and probably results in a single % character. It would be unlikely for both the \ and the % to make it through to printf, even if printf were prepared to treat the \ specially.
so the reason why one must type printf("%%"); to print single % is that's what is defined in printf function. % is an escape character of printf's, and \ of compiler.
Understanding INADDR_ANY for socket programming
INADDR_ANY is used when you don't need to bind a socket to a specific IP. When you use this value as the address when calling bind(), the socket accepts connections to all the IPs of the machine.
jQuery ajax post file field
I tried this code to accept files using Ajax and on submit file gets store using my php file. Code modified slightly to work. (Uploaded Files: PDF,JPG)
function verify1() {
jQuery.ajax({
type: 'POST',
url:"functions.php",
data: new FormData($("#infoForm1")[0]),
processData: false,
contentType: false,
success: function(returnval) {
$("#show1").html(returnval);
$('#show1').show();
}
});
}
Just print the file details and check. You will get Output. If error let me know.
What does /p mean in set /p?
The /P switch allows you to set the value of a variable to a line of input entered by the user. Displays the specified promptString before reading the line of input. The promptString can be empty.
Two ways I've used it... first:
SET /P variable=
When batch file reaches this point (when left blank) it will halt and wait for user input. Input then becomes variable.
And second:
SET /P variable=<%temp%\filename.txt
Will set variable to contents (the first line) of the txt file. This method won't work unless the /P is included. Both tested on Windows 8.1 Pro, but it's the same on 7 and 10.
laravel 5.4 upload image
public function store()
{
$this->validate(request(), [
'title' => 'required',
'slug' => 'required',
'file' => 'required|image|mimes:jpg,jpeg,png,gif'
]);
$fileName = null;
if (request()->hasFile('file')) {
$file = request()->file('file');
$fileName = md5($file->getClientOriginalName() . time()) . "." . $file->getClientOriginalExtension();
$file->move('./uploads/categories/', $fileName);
}
Category::create([
'title' => request()->get('title'),
'slug' => str_slug(request()->get('slug')),
'description' => request()->get('description'),
'category_img' => $fileName,
'category_status' => 'DEACTIVE'
]);
return redirect()->to('/admin/category');
}
How to get htaccess to work on MAMP
The problem I was having with the rewrite is that some .htaccess files for Codeigniter, etc come with
RewriteBase /
Which doesn't seem to work in MAMP...at least for me.
How to compare 2 dataTables
public static bool AreTablesTheSame( DataTable tbl1, DataTable tbl2)
{
if (tbl1.Rows.Count != tbl2.Rows.Count || tbl1.Columns.Count != tbl2.Columns.Count)
return false;
for ( int i = 0; i < tbl1.Rows.Count; i++)
{
for ( int c = 0; c < tbl1.Columns.Count; c++)
{
if (!Equals(tbl1.Rows[i][c] ,tbl2.Rows[i][c]))
return false;
}
}
return true;
}
Embed YouTube video - Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
You only need to copy <iframe> from the YouTube Embed section (click on SHARE below the video and then EMBED and copy the entire iframe).
Custom Drawable for ProgressBar/ProgressDialog
i do your code .i can run but i need modify two places:
name="android:indeterminateDrawable"instead ofandroid:progressDrawablemodify name attrs.xml ---> styles.xml
What is the difference between attribute and property?
In Python...
class X( object ):
def __init__( self ):
self.attribute
def getAttr( self ):
return self.attribute
def setAttr( self, value ):
self.attribute= value
property_name= property( getAttr, setAttr )
A property is a single attribute-like name that wraps a collection of setter, getter (and deleter) functions.
An attribute is usually a single object within another object.
Having said that, however, Python gives you methods like __getattr__ which allow you extend the definition of "attribute".
Bottom Line - they're almost synonymous. Python makes a technical distinction in how they're implemented.
How to sort an array of objects by multiple fields?
Simplest Way to sort array of object by multiple fields:
let homes = [ {"h_id":"3",
"city":"Dallas",
"state":"TX",
"zip":"75201",
"price":"162500"},
{"h_id":"4",
"city":"Bevery Hills",
"state":"CA",
"zip":"90210",
"price":"319250"},
{"h_id":"6",
"city":"Dallas",
"state":"TX",
"zip":"75000",
"price":"556699"},
{"h_id":"5",
"city":"New York",
"state":"NY",
"zip":"00010",
"price":"962500"}
];
homes.sort((a, b) => (a.city > b.city) ? 1 : -1);
Output: "Bevery Hills" "Dallas" "Dallas" "Dallas" "New York"
Disabling the button after once click
jQuery now has the .one() function that limits any given event (such as "submit") to one occurrence.
Example:
$('#myForm').one('submit', function() {
$(this).find('input[type="submit"]').attr('disabled','disabled');
});
This code will let you submit the form once, then disable the button. Change the selector in the find() function to whatever button you'd like to disable.
Note: Per Francisco Goldenstein, I've changed the selector to the form and the event type to submit. This allows you to submit the form from anywhere (places other than the button) while still disabling the button on submit.
Note 2: Per gorelog, using attr('disabled','disabled') will prevent your form from sending the value of the submit button. If you want to pass the button value, use attr('onclick','this.style.opacity = "0.6"; return false;') instead.
List the queries running on SQL Server
You can run the sp_who command to get a list of all the current users, sessions and processes. You can then run the KILL command on any spid that is blocking others.
read word by word from file in C++
I have edited the function for you,
void readFile()
{
ifstream file;
file.open ("program.txt");
if (!file.is_open()) return;
string word;
while (file >> word)
{
cout<< word << '\n';
}
}
Quantile-Quantile Plot using SciPy
Using qqplot of statsmodels.api is another option:
Very basic example:
import numpy as np
import statsmodels.api as sm
import pylab
test = np.random.normal(0,1, 1000)
sm.qqplot(test, line='45')
pylab.show()
Result:
Documentation and more example are here
How do I set the background color of Excel cells using VBA?
It doesn't work if you use Function, but works if you Sub. However, you cannot call a sub from a cell using formula.
How to format Joda-Time DateTime to only mm/dd/yyyy?
Another way of doing that is:
String date = dateAndTime.substring(0, dateAndTime.indexOf(" "));
I'm not exactly certain, but I think this might be faster/use less memory than using the .split() method.
How to use UIScrollView in Storyboard
Here is a simple solution.
Set the size attribute of your view controller in the storyboard to "Freeform" and set the size you want. Make sure it's big enough to fit the full content of your scroll view.
Add your scroll view and set the constraints as you normally would. i.e. if you wants the scroll view to be the size of your view, then attach your top, bottom, leading, trailing margins to the superview as you normally would.
Now just make sure there are constraints in the subviews of the scrollview that connect the top and bottom of the scroll view. Same for left and right if you have horizontal scrolling.
What is Gradle in Android Studio?
Gradle is like a version of make that puts features before usability, which is why you and 433k readers can't even work out that it's a build system.
Structs data type in php?
I recommend 2 things. First is associative array.
$person = Array();
$person['name'] = "Joe";
$person['age'] = 22;
Second is classes.
Detailed documentation here: http://php.net/manual/en/language.oop5.php
Cannot connect to the Docker daemon on macOS
on OSX assure you have launched the Docker application before issuing
docker ps
or docker build ... etc ... yes it seems strange and somewhat misleading that issuing
docker --version
gives version even though the docker daemon is not running ... ditto for those other version cmds ... I just encountered exactly the same symptoms ... this behavior on OSX is different from on linux
How does the "position: sticky;" property work?
I know this is an old post. But if there's someone like me that just recently started messing around with position: sticky this can be useful.
In my case i was using position: sticky as a grid-item. It was not working and the problem was an overflow-x: hidden on the html element. As soon as i removed that property it worked fine. Having overflow-x: hidden on the body element seemed to work tho, no idea why yet.
Choosing bootstrap vs material design
As far as I know you can use all mentioned technologies separately or together. It's up to you. I think you look at the problem from the wrong angle. Material Design is just the way particular elements of the page are designed, behave and put together. Material Design provides great UI/UX, but it relies on the graphic layout (HTML/CSS) rather than JS (events, interactions).
On the other hand, AngularJS and Bootstrap are front-end frameworks that can speed up your development by saving you from writing tons of code. For example, you can build web app utilizing AngularJS, but without Material Design. Or You can build simple HTML5 web page with Material Design without AngularJS or Bootstrap. Finally you can build web app that uses AngularJS with Bootstrap and with Material Design. This is the best scenario. All technologies support each other.
- Bootstrap = responsive page
- AngularJS = MVC
- Material Design = great UI/UX
You can check awesome material design components for AngularJS:
https://material.angularjs.org
iOS 8 UITableView separator inset 0 not working
simply put this two lines in cellForRowAtIndexPath method
- if you want to all separator lines are start from zero [cell setSeparatorInset:UIEdgeInsetsZero]; [cell setLayoutMargins:UIEdgeInsetsZero];
if you want to Specific separator line are start from zero suppose here is last line is start from zero
if (indexPath.row == array.count-1)
{
[cell setSeparatorInset:UIEdgeInsetsZero];
[cell setLayoutMargins:UIEdgeInsetsZero];
}
else
tblView.separatorInset=UIEdgeInsetsMake(0, 10, 0, 0);
Multiple -and -or in PowerShell Where-Object statement
I found the solution here:
How to properly -filter multiple strings in a PowerShell copy script
You have to use -Include flag for Get-ChildItem
My Example:
$Location = "C:\user\files"
$result = (Get-ChildItem $Location\* -Include *.png, *.gif, *.jpg)
Dont forget put "*" after path location.
How to assign an exec result to a sql variable?
This will work if you wish to simply return an integer:
DECLARE @ResultForPos INT
EXEC @ResultForPos = storedprocedureName 'InputParameter'
SELECT @ResultForPos
Validating an XML against referenced XSD in C#
personally I favor validating without a callback:
public bool ValidateSchema(string xmlPath, string xsdPath)
{
XmlDocument xml = new XmlDocument();
xml.Load(xmlPath);
xml.Schemas.Add(null, xsdPath);
try
{
xml.Validate(null);
}
catch (XmlSchemaValidationException)
{
return false;
}
return true;
}
(see Timiz0r's post in Synchronous XML Schema Validation? .NET 3.5)
Strange out of memory issue while loading an image to a Bitmap object
This code will help to load large bitmap from drawable
public class BitmapUtilsTask extends AsyncTask<Object, Void, Bitmap> {
Context context;
public BitmapUtilsTask(Context context) {
this.context = context;
}
/**
* Loads a bitmap from the specified url.
*
* @param url The location of the bitmap asset
* @return The bitmap, or null if it could not be loaded
* @throws IOException
* @throws MalformedURLException
*/
public Bitmap getBitmap() throws MalformedURLException, IOException {
// Get the source image's dimensions
int desiredWidth = 1000;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(context.getResources(), R.drawable.green_background , options);
int srcWidth = options.outWidth;
int srcHeight = options.outHeight;
// Only scale if the source is big enough. This code is just trying
// to fit a image into a certain width.
if (desiredWidth > srcWidth)
desiredWidth = srcWidth;
// Calculate the correct inSampleSize/scale value. This helps reduce
// memory use. It should be a power of 2
int inSampleSize = 1;
while (srcWidth / 2 > desiredWidth) {
srcWidth /= 2;
srcHeight /= 2;
inSampleSize *= 2;
}
// Decode with inSampleSize
options.inJustDecodeBounds = false;
options.inDither = false;
options.inSampleSize = inSampleSize;
options.inScaled = false;
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
options.inPurgeable = true;
Bitmap sampledSrcBitmap;
sampledSrcBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.green_background , options);
return sampledSrcBitmap;
}
/**
* The system calls this to perform work in a worker thread and delivers
* it the parameters given to AsyncTask.execute()
*/
@Override
protected Bitmap doInBackground(Object... item) {
try {
return getBitmap();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
Cannot find "Package Explorer" view in Eclipse
The simplest, and best long-term solution
Go to the main menu on top of Eclipse and locate Window next to Run and expand it.
Window->Reset Perspective... to restore all views to their defaults
It will reset the default setting.
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class
The problem is that there is no class called com.service.SempediaSearchManager on your webapp's classpath. The most likely root causes are:
the fully qualified classname is incorrect in
/WEB-INF/Sempedia-service.xml; i.e. the class name is something else,the class is not in your webapp's
/WEB-INF/classesdirectory tree or a JAR file in the/WEB-INF/libdirectory.
EDIT : The only other thing that I can think of is that the ClassDefNotFoundException may actually be a result of an earlier class loading / static initialization problem. Check your log files for the first stack trace, and look the nested exceptions, i.e. the "caused by" chain. [If a class load fails one time and you or Spring call Class.forName() again for some reason, then Java won't actually try to load a second time. Instead you will get a ClassDefNotFoundException stack trace that does not explain the real cause of the original failure.]
If you are still stumped, you should take Eclipse out of the picture. Create the WAR file in the form that you are eventually going to deploy it, then from the command line:
manually shutdown Tomcat
clean out your Tomcat webapp directory,
copy the WAR file into the webapp directory,
start Tomcat.
If that doesn't solve the problem directly, look at the deployed webapp directory on Tomcat to verify that the "missing" class is in the right place.
What does mscorlib stand for?
It stands for
Microsoft's Common Object Runtime Library
and it is the primary assembly for the Framework Common Library.
It contains the following namespaces:
System
System.Collections
System.Configuration.Assemblies
System.Diagnostics
System.Diagnostics.SymbolStore
System.Globalization
System.IO
System.IO.IsolatedStorage
System.Reflection
System.Reflection.Emit
System.Resources
System.Runtime.CompilerServices
System.Runtime.InteropServices
System.Runtime.InteropServices.Expando
System.Runtime.Remoting
System.Runtime.Remoting.Activation
System.Runtime.Remoting.Channels
System.Runtime.Remoting.Contexts
System.Runtime.Remoting.Lifetime
System.Runtime.Remoting.Messaging
System.Runtime.Remoting.Metadata
System.Runtime.Remoting.Metadata.W3cXsd2001
System.Runtime.Remoting.Proxies
System.Runtime.Remoting.Services
System.Runtime.Serialization
System.Runtime.Serialization.Formatters
System.Runtime.Serialization.Formatters.Binary
System.Security
System.Security.Cryptography
System.Security.Cryptography.X509Certificates
System.Security.Permissions
System.Security.Policy
System.Security.Principal
System.Text
System.Threading
Microsoft.Win32
Interesting info about MSCorlib:
- The .NET 2.0 assembly will reference and use the 2.0 mscorlib.The
.NET 1.1assembly will reference the1.1 mscorlibbut will use the 2.0 mscorlib at runtime (due to hard-coded version redirects in theruntime itself) - In GAC there is only one version of mscorlib, you dont find 1.1
version on GAC even if you have 1.1 framework installed on your
machine. It would be good if somebody can explain why
MSCorlib 2.0alone is in GAC whereas 1.x version live inside framework folder - Is it possible to force a different runtime to be loaded by the application by making a config setting in your app / web.config? you won’t be able to choose the CLR version by settings in the ConfigurationFile – at that point, a CLR will already be running, and there can only be one per process. Immediately after the CLR is chosen the MSCorlib appropriate for that CLR is loaded.
Last executed queries for a specific database
This works for me to find queries on any database in the instance. I'm sysadmin on the instance (check your privileges):
SELECT deqs.last_execution_time AS [Time], dest.text AS [Query], dest.*
FROM sys.dm_exec_query_stats AS deqs
CROSS APPLY sys.dm_exec_sql_text(deqs.sql_handle) AS dest
WHERE dest.dbid = DB_ID('msdb')
ORDER BY deqs.last_execution_time DESC
This is the same answer that Aaron Bertrand provided but it wasn't placed in an answer.
Optimum way to compare strings in JavaScript?
Well in JavaScript you can check two strings for values same as integers so yo can do this:
"A" < "B""A" == "B""A" > "B"
And therefore you can make your own function that checks strings the same way as the strcmp().
So this would be the function that does the same:
function strcmp(a, b)
{
return (a<b?-1:(a>b?1:0));
}
Where can I find documentation on formatting a date in JavaScript?
Many frameworks (that you might already be using) have date formatting that you may not be aware of. jQueryUI was already mentioned, but other frameworks such as Kendo UI (Globalization), Yahoo UI (Util) and AngularJS have them as well.
// 11/6/2000
kendo.toString(new Date(value), "d")
// Monday, November 06, 2000
kendo.toString(new Date(2000, 10, 6), "D")
How can one create an overlay in css?
Quick answer without seeing examples of your current HTML and CSS is to use z-index
css:
#div1 {
position: relative;
z-index: 1;
}
#div2 {
position: relative;
z-index: 2;
}
Where div2 is the overlay
How to open a new window on form submit
I generally use a small jQuery snippet globally to open any external links in a new tab / window. I've added the selector for a form for my own site and it works fine so far:
// URL target
$('a[href*="//"]:not([href*="'+ location.hostname +'"]),form[action*="//"]:not([href*="'+ location.hostname +'"]').attr('target','_blank');
How can I copy data from one column to another in the same table?
This will update all the rows in that columns if safe mode is not enabled.
UPDATE table SET columnB = columnA;
If safe mode is enabled then you will need to use a where clause. I use primary key as greater than 0 basically all will be updated
UPDATE table SET columnB = columnA where table.column>0;
Can I restore a single table from a full mysql mysqldump file?
This may help too.
# mysqldump -u root -p database0 > /tmp/database0.sql
# mysql -u root -p -e 'create database database0_bkp'
# mysql -u root -p database0_bkp < /tmp/database0.sql
# mysql -u root -p database0 -e 'insert into database0.table_you_want select * from database0_bkp.table_you_want'
sqldeveloper error message: Network adapter could not establish the connection error
Problem - I was not able to connect to DB through sql developer.
Solution - First thing to note is that SQL Developer is only UI to access to your database. I need to connect remote database not the localhost so I need not to install the oracle 8i/9i. Only I need is oracle client to install. After installation it got the path in environment variable like C:\oracle\product\10.2.0\client_1\bin. Still I was not able to connect the db.
Things to be checked.
- Listner/port should be up for the server IP where you want to connect.
- you will be able to ping the server. go to cmd prompt. type ping server Ip then enter.
- telnet the server IP and port. should be succesful.
If all points are ok for you then check from where you are running sql developer .exe file. I pasted sql developer folder to C:\oracle folder and run the .exe file from here and I am able to connect the database. and my problem of 'IO Error: The Network Adapter could not establish the connection' got resolved. Hurrey... :) :)
How to show Alert Message like "successfully Inserted" after inserting to DB using ASp.net MVC3
The 'best' way to do this would be to set a property on a view object once the update is successful. You can then access this property in the view and inform the user accordingly.
Having said that it would be possible to trigger an alert from the controller code by doing something like this -
public ActionResult ActionName(PostBackData postbackdata)
{
//your DB code
return new JavascriptResult { Script = "alert('Successfully registered');" };
}
You can find further info in this question - How to display "Message box" using MVC3 controller
How to get first element in a list of tuples?
when I ran (as suggested above):
>>> a = [(1, u'abc'), (2, u'def')]
>>> import operator
>>> b = map(operator.itemgetter(0), a)
>>> b
instead of returning:
[1, 2]
I received this as the return:
<map at 0xb387eb8>
I found I had to use list():
>>> b = list(map(operator.itemgetter(0), a))
to successfully return a list using this suggestion. That said, I'm happy with this solution, thanks. (tested/run using Spyder, iPython console, Python v3.6)
Trying to Validate URL Using JavaScript
best regex I found from http://angularjs.org/
var urlregex = /^(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/;
Yahoo Finance API
Yahoo is very easy to use and provides customized data. Use the following page to learn more.
finance.yahoo.com/d/quotes.csv?s=AAPL+GOOG+MSFT=pder=.csv
WARNING - there are a few tutorials out there on the web that show you how to do this, but the region where you put in the stock symbols causes an error if you use it as posted. You will get a "MISSING FORMAT VALUE". The tutorials I found omits the commentary around GOOG.
Example URL for GOOG: http://download.finance.yahoo.com/d/quotes.csv?s=%40%5EDJI,GOOG&f=nsl1op&e=.csv
python .replace() regex
You can use the re module for regexes, but regexes are probably overkill for what you want. I might try something like
z.write(article[:article.index("</html>") + 7]
This is much cleaner, and should be much faster than a regex based solution.
Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
I had a little different problem. In Project - Properties - Libraries - JRE library, I had the wrong JRE lib version. Remove and set the actual one, and voila - all Access restriction... warnings are away.
How to use shell commands in Makefile
Also, in addition to torek's answer: one thing that stands out is that you're using a lazily-evaluated macro assignment.
If you're on GNU Make, use the := assignment instead of =. This assignment causes the right hand side to be expanded immediately, and stored in the left hand variable.
FILES := $(shell ...) # expand now; FILES is now the result of $(shell ...)
FILES = $(shell ...) # expand later: FILES holds the syntax $(shell ...)
If you use the = assignment, it means that every single occurrence of $(FILES) will be expanding the $(shell ...) syntax and thus invoking the shell command. This will make your make job run slower, or even have some surprising consequences.
Hiding an Excel worksheet with VBA
You can do this programmatically using a VBA macro. You can make the sheet hidden or very hidden:
Sub HideSheet()
Dim sheet As Worksheet
Set sheet = ActiveSheet
' this hides the sheet but users will be able
' to unhide it using the Excel UI
sheet.Visible = xlSheetHidden
' this hides the sheet so that it can only be made visible using VBA
sheet.Visible = xlSheetVeryHidden
End Sub
JSON Array iteration in Android/Java
On Arrays, look for:
JSONArray menuitemArray = popupObject.getJSONArray("menuitem");
Regular expression containing one word or another
You just missed an extra pair of brackets for the "OR" symbol. The following should do the trick:
([0-9]+)\s+((\bseconds\b)|(\bminutes\b))
Without those you were either matching a number followed by seconds OR just the word minutes
How to fire an event when v-model changes?
Vue2: if you only want to detect change on input blur (e.g. after press enter or click somewhere else) do (more info here)
<input @change="foo" v-model... >
If you wanna detect single character changes (during user typing) use
<input @keydown="foo" v-model... >
You can also use @keyup and @input events. If you wanna to pass additional parameters use in template e.g. @keyDown="foo($event, param1, param2)". Comparision below (editable version here)
new Vue({_x000D_
el: "#app",_x000D_
data: { _x000D_
keyDown: { key:null, val: null, model: null, modelCopy: null },_x000D_
keyUp: { key:null, val: null, model: null, modelCopy: null },_x000D_
change: { val: null, model: null, modelCopy: null },_x000D_
input: { val: null, model: null, modelCopy: null },_x000D_
_x000D_
_x000D_
},_x000D_
methods: {_x000D_
_x000D_
keyDownFun: function(event){ // type of event: KeyboardEvent _x000D_
console.log(event); _x000D_
this.keyDown.key = event.key; // or event.keyCode_x000D_
this.keyDown.val = event.target.value; // html current input value_x000D_
this.keyDown.modelCopy = this.keyDown.model; // copy of model value at the moment on event handling_x000D_
},_x000D_
_x000D_
keyUpFun: function(event){ // type of event: KeyboardEvent_x000D_
console.log(event); _x000D_
this.keyUp.key = event.key; // or event.keyCode_x000D_
this.keyUp.val = event.target.value; // html current input value_x000D_
this.keyUp.modelCopy = this.keyUp.model; // copy of model value at the moment on event handling_x000D_
},_x000D_
_x000D_
changeFun: function(event) { // type of event: Event_x000D_
console.log(event);_x000D_
this.change.val = event.target.value; // html current input value_x000D_
this.change.modelCopy = this.change.model; // copy of model value at the moment on event handling_x000D_
},_x000D_
_x000D_
inputFun: function(event) { // type of event: Event_x000D_
console.log(event);_x000D_
this.input.val = event.target.value; // html current input value_x000D_
this.input.modelCopy = this.input.model; // copy of model value at the moment on event handling_x000D_
}_x000D_
}_x000D_
})div {_x000D_
margin-top: 20px;_x000D_
}<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>_x000D_
_x000D_
Type in fields below (to see events details open browser console)_x000D_
_x000D_
<div id="app">_x000D_
<div><input type="text" @keyDown="keyDownFun" v-model="keyDown.model"><br> @keyDown (note: model is different than value and modelCopy)<br> key:{{keyDown.key}}<br> value: {{ keyDown.val }}<br> modelCopy: {{keyDown.modelCopy}}<br> model: {{keyDown.model}}</div>_x000D_
_x000D_
<div><input type="text" @keyUp="keyUpFun" v-model="keyUp.model"><br> @keyUp (note: model change value before event occure) <br> key:{{keyUp.key}}<br> value: {{ keyUp.val }}<br> modelCopy: {{keyUp.modelCopy}}<br> model: {{keyUp.model}}</div>_x000D_
_x000D_
<div><input type="text" @change="changeFun" v-model="change.model"><br> @change (occures on enter key or focus change (tab, outside mouse click) etc.)<br> value: {{ change.val }}<br> modelCopy: {{change.modelCopy}}<br> model: {{change.model}}</div>_x000D_
_x000D_
<div><input type="text" @input="inputFun" v-model="input.model"><br> @input<br> value: {{ input.val }}<br> modelCopy: {{input.modelCopy}}<br> model: {{input.model}}</div>_x000D_
_x000D_
</div>The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. on deploying to tomcat
Almost same problem get resolved by creating a geoexplorer.xml file in /opt/apache-tomcat-8.5.37/conf/Catalina/localhost content of geoexplorer.xml file is
<Context displayName="geoexplorer" docBase="/usr/share/opengeo/geoexplorer" path="/geoexplorer"/>
How to change date format (MM/DD/YY) to (YYYY-MM-DD) in date picker
Try this:
$.datepicker.parseDate("yy-mm-dd", minValue);
How do I force "git pull" to overwrite local files?
I did this to get it to work:
On computer where I created the new branch:
git push --all
On computer where I wanted the new branch to show:
git fetch --all
Easiest way to detect Internet connection on iOS?
Alamofire
If you are already using Alamofire for all the RESTful Api, here is what you can benifit from that.
You can add following class to your app, and call MNNetworkUtils.main.isConnected() to get a boolean on whether its connected or not.
#import Alamofire
class MNNetworkUtils {
static let main = MNNetworkUtils()
init() {
manager = NetworkReachabilityManager(host: "google.com")
listenForReachability()
}
private let manager: NetworkReachabilityManager?
private var reachable: Bool = false
private func listenForReachability() {
self.manager?.listener = { [unowned self] status in
switch status {
case .notReachable:
self.reachable = false
case .reachable(_), .unknown:
self.reachable = true
}
}
self.manager?.startListening()
}
func isConnected() -> Bool {
return reachable
}
}
This is a singleton class. Every time, when user connect or disconnect the network, it will override self.reachable to true/false correctly, because we start listening for the NetworkReachabilityManager on singleton initialization.
Also in order to monitor reachability, you need to provide a host, currently I am using google.com feel free to change to any other hosts or one of yours if needed.
Code for a simple JavaScript countdown timer?
Based on the solution presented by @Layton Everson I developed a counter including hours, minutes and seconds:
var initialSecs = 86400;
var currentSecs = initialSecs;
setTimeout(decrement,1000);
function decrement() {
var displayedSecs = currentSecs % 60;
var displayedMin = Math.floor(currentSecs / 60) % 60;
var displayedHrs = Math.floor(currentSecs / 60 /60);
if(displayedMin <= 9) displayedMin = "0" + displayedMin;
if(displayedSecs <= 9) displayedSecs = "0" + displayedSecs;
currentSecs--;
document.getElementById("timerText").innerHTML = displayedHrs + ":" + displayedMin + ":" + displayedSecs;
if(currentSecs !== -1) setTimeout(decrement,1000);
}
How can I initialize a C# List in the same line I declare it. (IEnumerable string Collection Example)
It depends which version of C# you're using, from version 3.0 onwards you can use...
List<string> nameslist = new List<string> { "one", "two", "three" };
Need to find a max of three numbers in java
It would help if you provided the error you are seeing. Look at http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html and you will see that max only returns the max between two numbers, so likely you code is not even compiling.
Solve all your compilation errors first.
Then your homework will consist of finding the max of three numbers by comparing the first two together, and comparing that max result with the third value. You should have enough to find your answer now.
Disable html5 video autoplay
just use preload="none" in your video tag and video will stop autoplay when the page is loading.
Is there a pretty print for PHP?
I pulled a few of these options together into a wee little helper function at
http://github.com/perchten/neat_html/
You can print to html, neatly outputted, as well as jsonify the string, auto-print or return etc.
It handles file includes, objects, arrays, nulls vs false and the like.
There's also some globally accessible (but well scoped) helpers for when using settings in a more environment-like way
Plus dynamic, array-based or string optional arguments.
And, I keep adding to it. So it's supported :D
C char* to int conversion
Use atoi() from <stdlib.h>
http://linux.die.net/man/3/atoi
Or, write your own atoi() function which will convert char* to int
int a2i(const char *s)
{
int sign=1;
if(*s == '-'){
sign = -1;
s++;
}
int num=0;
while(*s){
num=((*s)-'0')+num*10;
s++;
}
return num*sign;
}
MySQL - Selecting data from multiple tables all with same structure but different data
Any of the above answers are valid, or an alternative way is to expand the table name to include the database name as well - eg:
SELECT * from us_music, de_music where `us_music.genre` = 'punk' AND `de_music.genre` = 'punk'
When is the init() function run?
Take for example a framework or a library you're designing for other users, these users eventually will have a main function in their code in order to execute their app. If the user directly imports a sub-package of your library's project then the init of that sub-package will be called(once) first of all. The same for the root package of the library, etc...
There are many times when you may want a code block to be executed without the existence of a main func, directly or not.
If you, as the developer of the imaginary library, import your library's sub-package that has an init function, it will be called first and once, you don't have a main func but you need to make sure that some variables, or a table, will be initialized before the calls of other functions.
A good thing to remember and not to worry about, is that:
the init always execute once per application.
init execution happens:
- right before the
initfunction of the "caller" package, - before the, optionally,
main func, - but after the package-level variables,
var = [...] or cost = [...],
When you import a package it will run all of its init functions, by order.
I'll will give a very good example of an init function. It will add mime types to a standard go's library named mime and a package-level function will use the mime standard package directly to get the custom mime types that are already be initialized at its init function:
package mime
import (
"mime"
"path/filepath"
)
var types = map[string]string{
".3dm": "x-world/x-3dmf",
".3dmf": "x-world/x-3dmf",
".7z": "application/x-7z-compressed",
".a": "application/octet-stream",
".aab": "application/x-authorware-bin",
".aam": "application/x-authorware-map",
".aas": "application/x-authorware-seg",
".abc": "text/vndabc",
".ace": "application/x-ace-compressed",
".acgi": "text/html",
".afl": "video/animaflex",
".ai": "application/postscript",
".aif": "audio/aiff",
".aifc": "audio/aiff",
".aiff": "audio/aiff",
".aim": "application/x-aim",
".aip": "text/x-audiosoft-intra",
".alz": "application/x-alz-compressed",
".ani": "application/x-navi-animation",
".aos": "application/x-nokia-9000-communicator-add-on-software",
".aps": "application/mime",
".apk": "application/vnd.android.package-archive",
".arc": "application/x-arc-compressed",
".arj": "application/arj",
".art": "image/x-jg",
".asf": "video/x-ms-asf",
".asm": "text/x-asm",
".asp": "text/asp",
".asx": "application/x-mplayer2",
".au": "audio/basic",
".avi": "video/x-msvideo",
".avs": "video/avs-video",
".bcpio": "application/x-bcpio",
".bin": "application/mac-binary",
".bmp": "image/bmp",
".boo": "application/book",
".book": "application/book",
".boz": "application/x-bzip2",
".bsh": "application/x-bsh",
".bz2": "application/x-bzip2",
".bz": "application/x-bzip",
".c++": "text/plain",
".c": "text/x-c",
".cab": "application/vnd.ms-cab-compressed",
".cat": "application/vndms-pkiseccat",
".cc": "text/x-c",
".ccad": "application/clariscad",
".cco": "application/x-cocoa",
".cdf": "application/cdf",
".cer": "application/pkix-cert",
".cha": "application/x-chat",
".chat": "application/x-chat",
".chrt": "application/vnd.kde.kchart",
".class": "application/java",
".com": "text/plain",
".conf": "text/plain",
".cpio": "application/x-cpio",
".cpp": "text/x-c",
".cpt": "application/mac-compactpro",
".crl": "application/pkcs-crl",
".crt": "application/pkix-cert",
".crx": "application/x-chrome-extension",
".csh": "text/x-scriptcsh",
".css": "text/css",
".csv": "text/csv",
".cxx": "text/plain",
".dar": "application/x-dar",
".dcr": "application/x-director",
".deb": "application/x-debian-package",
".deepv": "application/x-deepv",
".def": "text/plain",
".der": "application/x-x509-ca-cert",
".dif": "video/x-dv",
".dir": "application/x-director",
".divx": "video/divx",
".dl": "video/dl",
".dmg": "application/x-apple-diskimage",
".doc": "application/msword",
".dot": "application/msword",
".dp": "application/commonground",
".drw": "application/drafting",
".dump": "application/octet-stream",
".dv": "video/x-dv",
".dvi": "application/x-dvi",
".dwf": "drawing/x-dwf=(old)",
".dwg": "application/acad",
".dxf": "application/dxf",
".dxr": "application/x-director",
".el": "text/x-scriptelisp",
".elc": "application/x-bytecodeelisp=(compiled=elisp)",
".eml": "message/rfc822",
".env": "application/x-envoy",
".eps": "application/postscript",
".es": "application/x-esrehber",
".etx": "text/x-setext",
".evy": "application/envoy",
".exe": "application/octet-stream",
".f77": "text/x-fortran",
".f90": "text/x-fortran",
".f": "text/x-fortran",
".fdf": "application/vndfdf",
".fif": "application/fractals",
".fli": "video/fli",
".flo": "image/florian",
".flv": "video/x-flv",
".flx": "text/vndfmiflexstor",
".fmf": "video/x-atomic3d-feature",
".for": "text/x-fortran",
".fpx": "image/vndfpx",
".frl": "application/freeloader",
".funk": "audio/make",
".g3": "image/g3fax",
".g": "text/plain",
".gif": "image/gif",
".gl": "video/gl",
".gsd": "audio/x-gsm",
".gsm": "audio/x-gsm",
".gsp": "application/x-gsp",
".gss": "application/x-gss",
".gtar": "application/x-gtar",
".gz": "application/x-compressed",
".gzip": "application/x-gzip",
".h": "text/x-h",
".hdf": "application/x-hdf",
".help": "application/x-helpfile",
".hgl": "application/vndhp-hpgl",
".hh": "text/x-h",
".hlb": "text/x-script",
".hlp": "application/hlp",
".hpg": "application/vndhp-hpgl",
".hpgl": "application/vndhp-hpgl",
".hqx": "application/binhex",
".hta": "application/hta",
".htc": "text/x-component",
".htm": "text/html",
".html": "text/html",
".htmls": "text/html",
".htt": "text/webviewhtml",
".htx": "text/html",
".ice": "x-conference/x-cooltalk",
".ico": "image/x-icon",
".ics": "text/calendar",
".icz": "text/calendar",
".idc": "text/plain",
".ief": "image/ief",
".iefs": "image/ief",
".iges": "application/iges",
".igs": "application/iges",
".ima": "application/x-ima",
".imap": "application/x-httpd-imap",
".inf": "application/inf",
".ins": "application/x-internett-signup",
".ip": "application/x-ip2",
".isu": "video/x-isvideo",
".it": "audio/it",
".iv": "application/x-inventor",
".ivr": "i-world/i-vrml",
".ivy": "application/x-livescreen",
".jam": "audio/x-jam",
".jav": "text/x-java-source",
".java": "text/x-java-source",
".jcm": "application/x-java-commerce",
".jfif-tbnl": "image/jpeg",
".jfif": "image/jpeg",
".jnlp": "application/x-java-jnlp-file",
".jpe": "image/jpeg",
".jpeg": "image/jpeg",
".jpg": "image/jpeg",
".jps": "image/x-jps",
".js": "application/javascript",
".json": "application/json",
".jut": "image/jutvision",
".kar": "audio/midi",
".karbon": "application/vnd.kde.karbon",
".kfo": "application/vnd.kde.kformula",
".flw": "application/vnd.kde.kivio",
".kml": "application/vnd.google-earth.kml+xml",
".kmz": "application/vnd.google-earth.kmz",
".kon": "application/vnd.kde.kontour",
".kpr": "application/vnd.kde.kpresenter",
".kpt": "application/vnd.kde.kpresenter",
".ksp": "application/vnd.kde.kspread",
".kwd": "application/vnd.kde.kword",
".kwt": "application/vnd.kde.kword",
".ksh": "text/x-scriptksh",
".la": "audio/nspaudio",
".lam": "audio/x-liveaudio",
".latex": "application/x-latex",
".lha": "application/lha",
".lhx": "application/octet-stream",
".list": "text/plain",
".lma": "audio/nspaudio",
".log": "text/plain",
".lsp": "text/x-scriptlisp",
".lst": "text/plain",
".lsx": "text/x-la-asf",
".ltx": "application/x-latex",
".lzh": "application/octet-stream",
".lzx": "application/lzx",
".m1v": "video/mpeg",
".m2a": "audio/mpeg",
".m2v": "video/mpeg",
".m3u": "audio/x-mpegurl",
".m": "text/x-m",
".man": "application/x-troff-man",
".manifest": "text/cache-manifest",
".map": "application/x-navimap",
".mar": "text/plain",
".mbd": "application/mbedlet",
".mc$": "application/x-magic-cap-package-10",
".mcd": "application/mcad",
".mcf": "text/mcf",
".mcp": "application/netmc",
".me": "application/x-troff-me",
".mht": "message/rfc822",
".mhtml": "message/rfc822",
".mid": "application/x-midi",
".midi": "application/x-midi",
".mif": "application/x-frame",
".mime": "message/rfc822",
".mjf": "audio/x-vndaudioexplosionmjuicemediafile",
".mjpg": "video/x-motion-jpeg",
".mm": "application/base64",
".mme": "application/base64",
".mod": "audio/mod",
".moov": "video/quicktime",
".mov": "video/quicktime",
".movie": "video/x-sgi-movie",
".mp2": "audio/mpeg",
".mp3": "audio/mpeg3",
".mp4": "video/mp4",
".mpa": "audio/mpeg",
".mpc": "application/x-project",
".mpe": "video/mpeg",
".mpeg": "video/mpeg",
".mpg": "video/mpeg",
".mpga": "audio/mpeg",
".mpp": "application/vndms-project",
".mpt": "application/x-project",
".mpv": "application/x-project",
".mpx": "application/x-project",
".mrc": "application/marc",
".ms": "application/x-troff-ms",
".mv": "video/x-sgi-movie",
".my": "audio/make",
".mzz": "application/x-vndaudioexplosionmzz",
".nap": "image/naplps",
".naplps": "image/naplps",
".nc": "application/x-netcdf",
".ncm": "application/vndnokiaconfiguration-message",
".nif": "image/x-niff",
".niff": "image/x-niff",
".nix": "application/x-mix-transfer",
".nsc": "application/x-conference",
".nvd": "application/x-navidoc",
".o": "application/octet-stream",
".oda": "application/oda",
".odb": "application/vnd.oasis.opendocument.database",
".odc": "application/vnd.oasis.opendocument.chart",
".odf": "application/vnd.oasis.opendocument.formula",
".odg": "application/vnd.oasis.opendocument.graphics",
".odi": "application/vnd.oasis.opendocument.image",
".odm": "application/vnd.oasis.opendocument.text-master",
".odp": "application/vnd.oasis.opendocument.presentation",
".ods": "application/vnd.oasis.opendocument.spreadsheet",
".odt": "application/vnd.oasis.opendocument.text",
".oga": "audio/ogg",
".ogg": "audio/ogg",
".ogv": "video/ogg",
".omc": "application/x-omc",
".omcd": "application/x-omcdatamaker",
".omcr": "application/x-omcregerator",
".otc": "application/vnd.oasis.opendocument.chart-template",
".otf": "application/vnd.oasis.opendocument.formula-template",
".otg": "application/vnd.oasis.opendocument.graphics-template",
".oth": "application/vnd.oasis.opendocument.text-web",
".oti": "application/vnd.oasis.opendocument.image-template",
".otm": "application/vnd.oasis.opendocument.text-master",
".otp": "application/vnd.oasis.opendocument.presentation-template",
".ots": "application/vnd.oasis.opendocument.spreadsheet-template",
".ott": "application/vnd.oasis.opendocument.text-template",
".p10": "application/pkcs10",
".p12": "application/pkcs-12",
".p7a": "application/x-pkcs7-signature",
".p7c": "application/pkcs7-mime",
".p7m": "application/pkcs7-mime",
".p7r": "application/x-pkcs7-certreqresp",
".p7s": "application/pkcs7-signature",
".p": "text/x-pascal",
".part": "application/pro_eng",
".pas": "text/pascal",
".pbm": "image/x-portable-bitmap",
".pcl": "application/vndhp-pcl",
".pct": "image/x-pict",
".pcx": "image/x-pcx",
".pdb": "chemical/x-pdb",
".pdf": "application/pdf",
".pfunk": "audio/make",
".pgm": "image/x-portable-graymap",
".pic": "image/pict",
".pict": "image/pict",
".pkg": "application/x-newton-compatible-pkg",
".pko": "application/vndms-pkipko",
".pl": "text/x-scriptperl",
".plx": "application/x-pixclscript",
".pm4": "application/x-pagemaker",
".pm5": "application/x-pagemaker",
".pm": "text/x-scriptperl-module",
".png": "image/png",
".pnm": "application/x-portable-anymap",
".pot": "application/mspowerpoint",
".pov": "model/x-pov",
".ppa": "application/vndms-powerpoint",
".ppm": "image/x-portable-pixmap",
".pps": "application/mspowerpoint",
".ppt": "application/mspowerpoint",
".ppz": "application/mspowerpoint",
".pre": "application/x-freelance",
".prt": "application/pro_eng",
".ps": "application/postscript",
".psd": "application/octet-stream",
".pvu": "paleovu/x-pv",
".pwz": "application/vndms-powerpoint",
".py": "text/x-scriptphyton",
".pyc": "application/x-bytecodepython",
".qcp": "audio/vndqcelp",
".qd3": "x-world/x-3dmf",
".qd3d": "x-world/x-3dmf",
".qif": "image/x-quicktime",
".qt": "video/quicktime",
".qtc": "video/x-qtc",
".qti": "image/x-quicktime",
".qtif": "image/x-quicktime",
".ra": "audio/x-pn-realaudio",
".ram": "audio/x-pn-realaudio",
".rar": "application/x-rar-compressed",
".ras": "application/x-cmu-raster",
".rast": "image/cmu-raster",
".rexx": "text/x-scriptrexx",
".rf": "image/vndrn-realflash",
".rgb": "image/x-rgb",
".rm": "application/vndrn-realmedia",
".rmi": "audio/mid",
".rmm": "audio/x-pn-realaudio",
".rmp": "audio/x-pn-realaudio",
".rng": "application/ringing-tones",
".rnx": "application/vndrn-realplayer",
".roff": "application/x-troff",
".rp": "image/vndrn-realpix",
".rpm": "audio/x-pn-realaudio-plugin",
".rt": "text/vndrn-realtext",
".rtf": "text/richtext",
".rtx": "text/richtext",
".rv": "video/vndrn-realvideo",
".s": "text/x-asm",
".s3m": "audio/s3m",
".s7z": "application/x-7z-compressed",
".saveme": "application/octet-stream",
".sbk": "application/x-tbook",
".scm": "text/x-scriptscheme",
".sdml": "text/plain",
".sdp": "application/sdp",
".sdr": "application/sounder",
".sea": "application/sea",
".set": "application/set",
".sgm": "text/x-sgml",
".sgml": "text/x-sgml",
".sh": "text/x-scriptsh",
".shar": "application/x-bsh",
".shtml": "text/x-server-parsed-html",
".sid": "audio/x-psid",
".skd": "application/x-koan",
".skm": "application/x-koan",
".skp": "application/x-koan",
".skt": "application/x-koan",
".sit": "application/x-stuffit",
".sitx": "application/x-stuffitx",
".sl": "application/x-seelogo",
".smi": "application/smil",
".smil": "application/smil",
".snd": "audio/basic",
".sol": "application/solids",
".spc": "text/x-speech",
".spl": "application/futuresplash",
".spr": "application/x-sprite",
".sprite": "application/x-sprite",
".spx": "audio/ogg",
".src": "application/x-wais-source",
".ssi": "text/x-server-parsed-html",
".ssm": "application/streamingmedia",
".sst": "application/vndms-pkicertstore",
".step": "application/step",
".stl": "application/sla",
".stp": "application/step",
".sv4cpio": "application/x-sv4cpio",
".sv4crc": "application/x-sv4crc",
".svf": "image/vnddwg",
".svg": "image/svg+xml",
".svr": "application/x-world",
".swf": "application/x-shockwave-flash",
".t": "application/x-troff",
".talk": "text/x-speech",
".tar": "application/x-tar",
".tbk": "application/toolbook",
".tcl": "text/x-scripttcl",
".tcsh": "text/x-scripttcsh",
".tex": "application/x-tex",
".texi": "application/x-texinfo",
".texinfo": "application/x-texinfo",
".text": "text/plain",
".tgz": "application/gnutar",
".tif": "image/tiff",
".tiff": "image/tiff",
".tr": "application/x-troff",
".tsi": "audio/tsp-audio",
".tsp": "application/dsptype",
".tsv": "text/tab-separated-values",
".turbot": "image/florian",
".txt": "text/plain",
".uil": "text/x-uil",
".uni": "text/uri-list",
".unis": "text/uri-list",
".unv": "application/i-deas",
".uri": "text/uri-list",
".uris": "text/uri-list",
".ustar": "application/x-ustar",
".uu": "text/x-uuencode",
".uue": "text/x-uuencode",
".vcd": "application/x-cdlink",
".vcf": "text/x-vcard",
".vcard": "text/x-vcard",
".vcs": "text/x-vcalendar",
".vda": "application/vda",
".vdo": "video/vdo",
".vew": "application/groupwise",
".viv": "video/vivo",
".vivo": "video/vivo",
".vmd": "application/vocaltec-media-desc",
".vmf": "application/vocaltec-media-file",
".voc": "audio/voc",
".vos": "video/vosaic",
".vox": "audio/voxware",
".vqe": "audio/x-twinvq-plugin",
".vqf": "audio/x-twinvq",
".vql": "audio/x-twinvq-plugin",
".vrml": "application/x-vrml",
".vrt": "x-world/x-vrt",
".vsd": "application/x-visio",
".vst": "application/x-visio",
".vsw": "application/x-visio",
".w60": "application/wordperfect60",
".w61": "application/wordperfect61",
".w6w": "application/msword",
".wav": "audio/wav",
".wb1": "application/x-qpro",
".wbmp": "image/vnd.wap.wbmp",
".web": "application/vndxara",
".wiz": "application/msword",
".wk1": "application/x-123",
".wmf": "windows/metafile",
".wml": "text/vnd.wap.wml",
".wmlc": "application/vnd.wap.wmlc",
".wmls": "text/vnd.wap.wmlscript",
".wmlsc": "application/vnd.wap.wmlscriptc",
".word": "application/msword",
".wp5": "application/wordperfect",
".wp6": "application/wordperfect",
".wp": "application/wordperfect",
".wpd": "application/wordperfect",
".wq1": "application/x-lotus",
".wri": "application/mswrite",
".wrl": "application/x-world",
".wrz": "model/vrml",
".wsc": "text/scriplet",
".wsrc": "application/x-wais-source",
".wtk": "application/x-wintalk",
".x-png": "image/png",
".xbm": "image/x-xbitmap",
".xdr": "video/x-amt-demorun",
".xgz": "xgl/drawing",
".xif": "image/vndxiff",
".xl": "application/excel",
".xla": "application/excel",
".xlb": "application/excel",
".xlc": "application/excel",
".xld": "application/excel",
".xlk": "application/excel",
".xll": "application/excel",
".xlm": "application/excel",
".xls": "application/excel",
".xlt": "application/excel",
".xlv": "application/excel",
".xlw": "application/excel",
".xm": "audio/xm",
".xml": "text/xml",
".xmz": "xgl/movie",
".xpix": "application/x-vndls-xpix",
".xpm": "image/x-xpixmap",
".xsr": "video/x-amt-showrun",
".xwd": "image/x-xwd",
".xyz": "chemical/x-pdb",
".z": "application/x-compress",
".zip": "application/zip",
".zoo": "application/octet-stream",
".zsh": "text/x-scriptzsh",
".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
".docm": "application/vnd.ms-word.document.macroEnabled.12",
".dotx": "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
".dotm": "application/vnd.ms-word.template.macroEnabled.12",
".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
".xlsm": "application/vnd.ms-excel.sheet.macroEnabled.12",
".xltx": "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
".xltm": "application/vnd.ms-excel.template.macroEnabled.12",
".xlsb": "application/vnd.ms-excel.sheet.binary.macroEnabled.12",
".xlam": "application/vnd.ms-excel.addin.macroEnabled.12",
".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
".pptm": "application/vnd.ms-powerpoint.presentation.macroEnabled.12",
".ppsx": "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
".ppsm": "application/vnd.ms-powerpoint.slideshow.macroEnabled.12",
".potx": "application/vnd.openxmlformats-officedocument.presentationml.template",
".potm": "application/vnd.ms-powerpoint.template.macroEnabled.12",
".ppam": "application/vnd.ms-powerpoint.addin.macroEnabled.12",
".sldx": "application/vnd.openxmlformats-officedocument.presentationml.slide",
".sldm": "application/vnd.ms-powerpoint.slide.macroEnabled.12",
".thmx": "application/vnd.ms-officetheme",
".onetoc": "application/onenote",
".onetoc2": "application/onenote",
".onetmp": "application/onenote",
".onepkg": "application/onenote",
".xpi": "application/x-xpinstall",
}
func init() {
for ext, typ := range types {
// skip errors
mime.AddExtensionType(ext, typ)
}
}
// typeByExtension returns the MIME type associated with the file extension ext.
// The extension ext should begin with a leading dot, as in ".html".
// When ext has no associated type, typeByExtension returns "".
//
// Extensions are looked up first case-sensitively, then case-insensitively.
//
// The built-in table is small but on unix it is augmented by the local
// system's mime.types file(s) if available under one or more of these
// names:
//
// /etc/mime.types
// /etc/apache2/mime.types
// /etc/apache/mime.types
//
// On Windows, MIME types are extracted from the registry.
//
// Text types have the charset parameter set to "utf-8" by default.
func TypeByExtension(fullfilename string) string {
ext := filepath.Ext(fullfilename)
typ := mime.TypeByExtension(ext)
// mime.TypeByExtension returns as text/plain; | charset=utf-8 the static .js (not always)
if ext == ".js" && (typ == "text/plain" || typ == "text/plain; charset=utf-8") {
if ext == ".js" {
typ = "application/javascript"
}
}
return typ
}
Hope that helped you and other users, don't hesitate to post again if you have more questions!
Reverse Singly Linked List Java
A more elegant solution would be to use recursion
void ReverseList(ListNode current, ListNode previous) {
if(current.Next != null)
{
ReverseList(current.Next, current);
ListNode temp = current.Next;
temp.Next = current;
current.Next = previous;
}
}
How do you view ALL text from an ntext or nvarchar(max) in SSMS?
The easiest way to quickly view large varchar/text column:
declare @t varchar(max)
select @t = long_column from table
print @t
Apply function to each column in a data frame observing each columns existing data type
If it were an "ordered factor" things would be different. Which is not to say I like "ordered factors", I don't, only to say that some relationships are defined for 'ordered factors' that are not defined for "factors". Factors are thought of as ordinary categorical variables. You are seeing the natural sort order of factors which is alphabetical lexical order for your locale. If you want to get an automatic coercion to "numeric" for every column, ... dates and factors and all, then try:
sapply(df, function(x) max(as.numeric(x)) ) # not generally a useful result
Or if you want to test for factors first and return as you expect then:
sapply( df, function(x) if("factor" %in% class(x) ) {
max(as.numeric(as.character(x)))
} else { max(x) } )
@Darrens comment does work better:
sapply(df, function(x) max(as.character(x)) )
max does succeed with character vectors.
Replace \n with actual new line in Sublime Text
What I did is simple and straightforward.
Enter Space or \n or whatever you want to find to Find.
Then hit Find All at right bottom corner, this will select all results.
Then hit enter on your keyboard and it will break all selected into new lines.
what is difference between success and .done() method of $.ajax
.success() only gets called if your webserver responds with a 200 OK HTTP header - basically when everything is fine.
The callbacks attached to done() will be fired when the deferred is resolved. The callbacks attached to fail() will be fired when the deferred is rejected.
promise.done(doneCallback).fail(failCallback)
.done() has only one callback and it is the success callback
How to read file contents into a variable in a batch file?
To get all the lines of the file loaded into the variable, Delayed Expansion is needed, so do the following:
SETLOCAL EnableDelayedExpansion
for /f "Tokens=* Delims=" %%x in (version.txt) do set Build=!Build!%%x
There is a problem with some special characters, though especially ;, % and !
SQL Select between dates
Special thanks to Jeff and vapcguy your interactivity is really encouraging.
Here is a more complex statement that is useful when the length between '/' is unknown::
SELECT * FROM tableName
WHERE julianday(
substr(substr(date, instr(date, '/')+1), instr(substr(date, instr(date, '/')+1), '/')+1)
||'-'||
case when length(
substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1),'/')-1)
)=2
then
substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1), '/')-1)
else
'0'||substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1), '/')-1)
end
||'-'||
case when length(substr(date,1, instr(date, '/')-1 )) =2
then substr(date,1, instr(date, '/')-1 )
else
'0'||substr(date,1, instr(date, '/')-1 )
end
) BETWEEN julianday('2015-03-14') AND julianday('2015-03-16')
Threading Example in Android
Here is a simple threading example for Android. It's very basic but it should help you to get a perspective.
Android code - Main.java
package test12.tt;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class Test12Activity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final TextView txt1 = (TextView) findViewById(R.id.sm);
new Thread(new Runnable() {
public void run(){
txt1.setText("Thread!!");
}
}).start();
}
}
Android application xml - main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id = "@+id/sm"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"/>
</LinearLayout>
Print DIV content by JQuery
You can follow these steps :
- wrap the div you want to print into another div.
- set the wrapper div display status to none in css.
- keep the div you want to print display status as block, anyway it will be hidden as its parent is hidden.
- simply call
$('SelectorToPrint').printElement();
How to export data from Spark SQL to CSV
enter code here IN DATAFRAME:
val p=spark.read.format("csv").options(Map("header"->"true","delimiter"->"^")).load("filename.csv")
Re-doing a reverted merge in Git
Let's assume you have such history
---o---o---o---M---W---x-------x-------*
/
---A---B
Where A, B failed commits and W - is revert of M
So before I start fixing found problems I do cherry-pick of W commit to my branch
git cherry-pick -x W
Then I revert W commit on my branch
git revert W
After I can continue fixing.
The final history could look like:
---o---o---o---M---W---x-------x-------*
/ /
---A---B---W---W`----------C---D
When I send a PR it will clearly shows that PR is undo revert and adds some new commits.
Java get String CompareTo as a comparator object
Again, don't need the comparator for Arrays.binarySearch(Object[] a, Object key) so long as the types of objects are comparable, but with lambda expressions this is now way easier.
Simply replace the comparator with the method reference: String::compareTo
E.g.:
Arrays.binarySearch(someStringArray, "The String to find.", String::compareTo);
You could also use
Arrays.binarySearch(someStringArray, "The String to find.", (a,b) -> a.compareTo(b));
but even before lambdas, there were always anonymous classes:
Arrays.binarySearch(
someStringArray,
"The String to find.",
new Comparator<String>() {
@Override
public int compare(String o1, String o2) {
return o1.compareTo(o2);
}
});
How can I commit a single file using SVN over a network?
svn add filename.htmlsvn commit -m"your comment"- You dont have to push
Is there an easy way to return a string repeated X number of times?
I would go for Dan Tao's answer, but if you're not using .NET 4.0 you can do something like that:
public static string Repeat(this string str, int count)
{
return Enumerable.Repeat(str, count)
.Aggregate(
new StringBuilder(str.Length * count),
(sb, s) => sb.Append(s))
.ToString();
}
Unable to cast object of type 'System.DBNull' to type 'System.String`
This is the generic method that I use to convert any object that might be a DBNull.Value:
public static T ConvertDBNull<T>(object value, Func<object, T> conversionFunction)
{
return conversionFunction(value == DBNull.Value ? null : value);
}
usage:
var result = command.ExecuteScalar();
return result.ConvertDBNull(Convert.ToInt32);
shorter:
return command
.ExecuteScalar()
.ConvertDBNull(Convert.ToInt32);
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
@Gian Gomen In my case call SUPER solves problem. It seems like more correct solution then commitAllowingStateLoss(), because it solves problem, not hide it.
@Override
public void onRequestPermissionsResult(
final int requestCode,
@NonNull final String[] permissions,
@NonNull final int[] grantResults
) {
super.onRequestPermissionsResult(requestCode,permissions, grantResults); //<--- Without this line crash
switch (requestCode) {
case Constants.REQUEST_CODE_PERMISSION_STORAGE:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
onPermissionGranted(Constants.REQUEST_CODE_PERMISSION_STORAGE);
}
break;
}
How to get a list of column names on Sqlite3 database?
you can use Like statement if you are searching for any particular column
ex:
SELECT * FROM sqlite_master where sql like('%LAST%')
TSQL How do you output PRINT in a user defined function?
I have tended in the past to work on my functions in two stages. The first stage would be to treat them as fairly normal SQL queries and make sure that I am getting the right results out of it. After I am confident that it is performing as desired, then I would convert it into a UDF.
Checking if an input field is required using jQuery
A little bit of a more complete answer, inspired by the accepted answer:
$( '#form_id' ).submit( function( event ) {
event.preventDefault();
//validate fields
var fail = false;
var fail_log = '';
var name;
$( '#form_id' ).find( 'select, textarea, input' ).each(function(){
if( ! $( this ).prop( 'required' )){
} else {
if ( ! $( this ).val() ) {
fail = true;
name = $( this ).attr( 'name' );
fail_log += name + " is required \n";
}
}
});
//submit if fail never got set to true
if ( ! fail ) {
//process form here.
} else {
alert( fail_log );
}
});
In this case we loop all types of inputs and if they are required, we check if they have a value, and if not, a notice that they are required is added to the alert that will run.
Note that this, example assumes the form will be proceed inside the positive conditional via AJAX or similar. If you are submitting via traditional methods, move the second line, event.preventDefault(); to inside the negative conditional.
how to set radio option checked onload with jQuery
I liked the answer by @Amc. I found the expression could be condensed further to not use a filter() call (@chaiko apparently also noticed this). Also, prop() is the way to go vs attr() for jQuery v1.6+, see the jQuery documentation for prop() for the official best practices on the subject.
Consider the same input tags from @Paolo Bergantino's answer.
<input type='radio' name='gender' value='Male'>
<input type='radio' name='gender' value='Female'>
The updated one-liner might read something like:
$('input:radio[name="gender"][value="Male"]').prop('checked', true);
Is there a way to continue broken scp (secure copy) command process in Linux?
This is all you need.
rsync -e ssh file host:/directory/.
Adding a y-axis label to secondary y-axis in matplotlib
For everyone stumbling upon this post because pandas gets mentioned,
you now have the very elegant and straighforward option of directly accessing the
secondary_y axis in pandas with ax.right_ax
So paraphrasing the example initially posted, you would write:
table = sql.read_frame(query,connection)
ax = table[[0, 1]].plot(ylim=(0,100), secondary_y=table[1])
ax.set_ylabel('$')
ax.right_ax.set_ylabel('Your second Y-Axis Label goes here!')
What's the most efficient way to check if a record exists in Oracle?
select NVL ((select 'Y' from dual where exists
(select 1 from sales where sales_type = 'Accessories')),'N') as rec_exists
from dual
1.Dual table will return 'Y' if record exists in sales_type table 2.Dual table will return null if no record exists in sales_type table and NVL will convert that to 'N'
Referencing Row Number in R
These are present by default as rownames when you create a data.frame.
R> df = data.frame('a' = rnorm(10), 'b' = runif(10), 'c' = letters[1:10])
R> df
a b c
1 0.3336944 0.39746731 a
2 -0.2334404 0.12242856 b
3 1.4886706 0.07984085 c
4 -1.4853724 0.83163342 d
5 0.7291344 0.10981827 e
6 0.1786753 0.47401690 f
7 -0.9173701 0.73992239 g
8 0.7805941 0.91925413 h
9 0.2469860 0.87979229 i
10 1.2810961 0.53289335 j
and you can access them via the rownames command.
R> rownames(df)
[1] "1" "2" "3" "4" "5" "6" "7" "8" "9" "10"
if you need them as numbers, simply coerce to numeric by adding as.numeric, as in as.numeric(rownames(df)).
You don't need to add them, as if you know what you are looking for (say item df$c == 'i', you can use the which command:
R> which(df$c =='i')
[1] 9
or if you don't know the column
R> which(df == 'i', arr.ind=T)
row col
[1,] 9 3
you may access the element using df[9, 'c'], or df$c[9].
If you wanted to add them you could use df$rownumber <- as.numeric(rownames(df)), though this may be less robust than df$rownumber <- 1:nrow(df) as there are cases when you might have assigned to rownames so they will no longer be the default index numbers (the which command will continue to return index numbers even if you do assign to rownames).
How to connect to mysql with laravel?
I spent a lot of time trying to figure this one out. Finally, I tried shutting down my development server and booting it up again. Frustratingly, this worked for me.
I came to the conclusion, that after editing the .env file in Laravel 5, you have to exit the server, and run php artisan serve again.
"You tried to execute a query that does not include the specified aggregate function"
I had a similar problem in a MS-Access query, and I solved it by changing my equivalent fName to an "Expression" (as opposed to "Group By" or "Sum"). So long as all of my fields were "Expression", the Access query builder did not require any Group By clause at the end.
How to close a thread from within?
A little late, but I use a _is_running variable to tell the thread when I want to close. It's easy to use, just implement a stop() inside your thread class.
def stop(self):
self._is_running = False
And in run() just loop on while(self._is_running)
How can I convert a string to upper- or lower-case with XSLT?
upper-case(string) and lower-case(string)
NodeJS: How to get the server's port?
const express = require('express');
const morgan = require('morgan')
const PORT = 3000;
morgan.token('port', (req) => {
return req.app.locals.port;
});
const app = express();
app.locals.port = PORT;
app.use(morgan(':method :url :port'))
app.get('/app', function(req, res) {
res.send("Hello world from server");
});
app1.listen(PORT);
Run Excel Macro from Outside Excel Using VBScript From Command Line
I think you are trying to do this? (TRIED AND TESTED)
This code will open the file Test.xls and run the macro TestMacro which will in turn write to the text file TestResult.txt
Option Explicit
Dim xlApp, xlBook
Set xlApp = CreateObject("Excel.Application")
'~~> Change Path here
Set xlBook = xlApp.Workbooks.Open("C:\Test.xls", 0, True)
xlApp.Run "TestMacro"
xlBook.Close
xlApp.Quit
Set xlBook = Nothing
Set xlApp = Nothing
WScript.Echo "Finished."
WScript.Quit
Open CSV file via VBA (performance)
Have you tried the import text function.
python requests get cookies
Alternatively, you can use requests.Session and observe cookies before and after a request:
>>> import requests
>>> session = requests.Session()
>>> print(session.cookies.get_dict())
{}
>>> response = session.get('http://google.com')
>>> print(session.cookies.get_dict())
{'PREF': 'ID=5514c728c9215a9a:FF=0:TM=1406958091:LM=1406958091:S=KfAG0U9jYhrB0XNf', 'NID': '67=TVMYiq2wLMNvJi5SiaONeIQVNqxSc2RAwVrCnuYgTQYAHIZAGESHHPL0xsyM9EMpluLDQgaj3db_V37NjvshV-eoQdA8u43M8UwHMqZdL-S2gjho8j0-Fe1XuH5wYr9v'}
Casting a variable using a Type variable
I will never understand why you need up to 50 reputation to leave a comment but I just had to say that @Curt answer is exactly what I was looking and hopefully someone else.
In my example, I have an ActionFilterAttribute that I was using to update the values of a json patch document. I didn't what the T model was for the patch document to I had to serialize & deserialize it to a plain JsonPatchDocument, modify it, then because I had the type, serialize & deserialize it back to the type again.
Type originalType = //someType that gets passed in to my constructor.
var objectAsString = JsonConvert.SerializeObject(myObjectWithAGenericType);
var plainPatchDocument = JsonConvert.DeserializeObject<JsonPatchDocument>(objectAsString);
var plainPatchDocumentAsString= JsonConvert.SerializeObject(plainPatchDocument);
var modifiedObjectWithGenericType = JsonConvert.DeserializeObject(plainPatchDocumentAsString, originalType );
What's the difference between emulation and simulation?
Here's an example - we recently developed a simulation model to measure the remote transmission response time of a yet-to-be-developed system. An emulation analysis would not have given us the answer in time to upgrade the bandwidth capacity so simulation was our approach. Because we were mostly interested in determining bandwidth needs, we cared primarily about transaction size and volume, not the processing of the system. The simulation model was on a stand-alone piece of software that was designed to model discrete-event processes. To summarize in response to your question, emulation is a type of simulation. But, in this case, simulation was NOT an emulation because it didn't fully represent the new system, only the size and volume of transactions.
"SyntaxError: Unexpected token < in JSON at position 0"
In a nutshell, if you're getting this error or similar error, that means only one thing. That is, in someplace in our codebase we were expecting a valid JSON format to process and we didn't get one. For example:
var string = "some string";
JSON.parse(string)
Will throw an error, saying
Uncaught SyntaxError: Unexpected token s in JSON at position 0
Because, the first character in string is s & it's not a valid JSON now. This can throw error in between also. like:
var invalidJSON= '{"foo" : "bar", "missedquotehere : "value" }';
JSON.parse(invalidJSON)
Will throw error:
VM598:1 Uncaught SyntaxError: Unexpected token v in JSON at position 36
because we intentionally missed a quote in the JSON string invalidJSON at position 36.
And if you fix that:
var validJSON= '{"foo" : "bar", "missedquotehere : "value" }';
JSON.parse(validJSON)
will give you an object in JSON.
Now, this error can be thrown in any place & in any framework/library. Most of the time you may be reading a network response which is not valid JSON. So steps of debugging this issue can be like:
curlor hit the actual API you're calling.- Log/Copy the response and try to parse it with
JSON.parse. If you're getting error, fix it. - If not, make sure your code is not mutating/changing the original response.
C# IPAddress from string
You've probably miss-typed something above that bit of code or created your own class called IPAddress. If you're using the .net one, that function should be available.
Have you tried using System.Net.IPAddress just in case?
System.Net.IPAddress ipaddress = System.Net.IPAddress.Parse("127.0.0.1"); //127.0.0.1 as an example
The docs on Microsoft's site have a complete example which works fine on my machine.
JAX-WS and BASIC authentication, when user names and passwords are in a database
If you put the username and password at clientside into the request this way:
URL url = new URL("http://localhost:8080/myapplication?wsdl");
MyWebService webservice = new MyWebServiceImplService(url).getMyWebServiceImplPort();
Map<String, Object> requestContext = ((BindingProvider) webservice).getRequestContext();
requestContext.put(BindingProvider.USERNAME_PROPERTY, "myusername");
requestContext.put(BindingProvider.PASSWORD_PROPERTY, "mypassword");
and call your webservice
String response = webservice.someMethodAtMyWebservice("test");
Then you can read the Basic Authentication string like this at the server side (you have to add some checks and do some exceptionhandling):
@Resource
WebServiceContext webserviceContext;
public void someMethodAtMyWebservice(String parameter) {
MessageContext messageContext = webserviceContext.getMessageContext();
Map<String, ?> httpRequestHeaders = (Map<String, ?>) messageContext.get(MessageContext.HTTP_REQUEST_HEADERS);
List<?> authorizationList = (List<?>) httpRequestHeaders.get("Authorization");
if (authorizationList != null && !authorizationList.isEmpty()) {
String basicString = (String) authorizationList.get(0);
String encodedBasicString = basicString.substring("Basic ".length());
String decoded = new String(Base64.getDecoder().decode(encodedBasicString), StandardCharsets.UTF_8);
String[] splitter = decoded.split(":");
String usernameFromBasicAuth = splitter[0];
String passwordFromBasicAuth = splitter[1];
}
Angular HttpClient "Http failure during parsing"
I had the same problem and the cause was That at time of returning a string in your backend (spring) you might be returning as return "spring used"; But this isn't parsed right according to spring. Instead use return "\" spring used \""; -Peace out
Best way to create unique token in Rails?
This may be helpful :
SecureRandom.base64(15).tr('+/=', '0aZ')
If you want to remove any special character than put in first argument '+/=' and any character put in second argument '0aZ' and 15 is the length here .
And if you want to remove the extra spaces and new line character than add the things like :
SecureRandom.base64(15).tr('+/=', '0aZ').strip.delete("\n")
Hope this will help to anybody.
Unused arguments in R
You could use dots: ... in your function definition.
myfun <- function(a, b, ...){
cat(a,b)
}
myfun(a=4,b=7,hello=3)
# 4 7
PHP: How to remove specific element from an array?
Will be like this:
function rmv_val($var)
{
return(!($var == 'strawberry'));
}
$array = array('apple', 'orange', 'strawberry', 'blueberry', 'kiwi');
$array_res = array_filter($array, "rmv_val");
Location of ini/config files in linux/unix?
- Generally system/global config is stored somewhere under /etc.
- User-specific config is stored in the user's home directory, often as a hidden file, sometimes as a hidden directory containing non-hidden files (and possibly more subdirectories).
Generally speaking, command line options will override environment variables which will override user defaults which will override system defaults.
Opacity of div's background without affecting contained element in IE 8?
The opacity style affects the whole element and everything within it. The correct answer to this is to use an rgba background colour instead.
The CSS is fairly simple:
.myelement {
background: rgba(200, 54, 54, 0.5);
}
...where the first three numbers are the red, green and blue values for your background colour, and the fourth is the 'alpha' channel value, which works the same way as the opacity value.
See this page for more info: http://css-tricks.com/rgba-browser-support/
The down-side, is that this doesn't work in IE8 or lower. The page I linked above also lists a few other browsers it doesn't work in, but they're all very old by now; all browsers in current use except IE6/7/8 will work with rgba colours.
The good news is that you can force IE to work with this as well, using a hack called CSS3Pie. CSS3Pie adds a number of modern CSS3 features to older versions of IE, including rgba background colours.
To use CSS3Pie for backgrounds, you need to add a specific -pie-background declaration to your CSS, as well as the PIE behavior style, so your stylesheet would end up looking like this:
.myelement {
background: rgba(200, 54, 54, 0.5);
-pie-background: rgba(200, 54, 54, 0.5);
behavior: url(PIE.htc);
}
Hope that helps.
[EDIT]
For what it's worth, as others have mentioned, you can use IE's filter style, with the gradient keyword. The CSS3Pie solution does actually use this same technique behind the scenes, but removes the need for you to mess around directly with IE's filters, so your stylesheets are much cleaner. (it also adds a whole bunch of other nice features too, but that's not relevant to this discussion)
Linq Query Group By and Selecting First Items
First of all, I wouldn't use a multi-dimensional array. Only ever seen bad things come of it.
Set up your variable like this:
IEnumerable<IEnumerable<string>> data = new[] {
new[]{"...", "...", "..."},
... etc ...
};
Then you'd simply go:
var firsts = data.Select(x => x.FirstOrDefault()).Where(x => x != null);
The Where makes sure it prunes any nulls if you have an empty list as an item inside.
Alternatively you can implement it as:
string[][] = new[] {
new[]{"...","...","..."},
new[]{"...","...","..."},
... etc ...
};
This could be used similarly to a [x,y] array but it's used like this: [x][y]
Select data from date range between two dates
this is easy, use this query to find what you want.
select * from Product_Sales where From_date<='2018-04-11' and To_date>='2018-04-11'
Check if a process is running or not on Windows with Python
Lock files are generally not used on Windows (and rarely on Unix). Typically when a Windows program wants to see if another instance of itself is already running, it will call FindWindow with a known title or class name.
def iTunesRunning():
import win32ui
# may need FindWindow("iTunes", None) or FindWindow(None, "iTunes")
# or something similar
if FindWindow("iTunes", "iTunes"):
print "Found an iTunes window"
return True
How to Find App Pool Recycles in Event Log
As it seems impossible to filter the XPath message data (it isn't in the XML to filter), you can also use powershell to search:
Get-WinEvent -LogName System | Where-Object {$_.Message -like "*recycle*"}
From this, I can see that the event Id for recycling seems to be 5074, so you can filter on this as well. I hope this helps someone as this information seemed to take a lot longer than expected to work out.
This along with @BlackHawkDesign comment should help you find what you need.
I had the same issue. Maybe interesting to mention is that you have to configure in which cases the app pool recycle event is logged. By default it's in a couple of cases, not all of them. You can do that in IIS > app pools > select the app pool > advanced settings > expand generate recycle event log entry – BlackHawkDesign Jan 14 '15 at 10:00
How to link to a <div> on another page?
You simply combine the ideas of a link to another page, as with href=foo.html, and a link to an element on the same page, as with href=#bar, so that the fragment like #bar is written immediately after the URL that refers to another page:
<a href="foo.html#bar">Some nice link text</a>
The target is specified the same was as when linking inside one page, e.g.
<div id="bar">
<h2>Some heading</h2>
Some content
</div>
or (if you really want to link specifically to a heading only)
<h2 id="bar">Some heading</h2>
Can I delete data from the iOS DeviceSupport directory?
Yes, you can delete data from iOS device support by the symbols of the operating system, one for each version for each architecture. It's used for debugging. If you don't need to support those devices any more, you can delete the directory without ill effect
Default parameters with C++ constructors
Sam's answer gives the reason that default arguments are preferable for constructors rather than overloading. I just want to add that C++-0x will allow delegation from one constructor to another, thereby removing the need for defaults.
How to check if a file exists in a folder?
if (File.Exists(localUploadDirectory + "/" + fileName))
{
`Your code here`
}
How to use a BackgroundWorker?
I know this is a bit old, but in case another beginner is going through this, I'll share some code that covers a bit more of the basic operations, here is another example that also includes the option to cancel the process and also report to the user the status of the process. I'm going to add on top of the code given by Alex Aza in the solution above
public Form1()
{
InitializeComponent();
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted; //Tell the user how the process went
backgroundWorker1.WorkerReportsProgress = true;
backgroundWorker1.WorkerSupportsCancellation = true; //Allow for the process to be cancelled
}
//Start Process
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
//Cancel Process
private void button2_Click(object sender, EventArgs e)
{
//Check if background worker is doing anything and send a cancellation if it is
if (backgroundWorker1.IsBusy)
{
backgroundWorker1.CancelAsync();
}
}
private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1000);
backgroundWorker1.ReportProgress(i);
//Check if there is a request to cancel the process
if (backgroundWorker1.CancellationPending)
{
e.Cancel = true;
backgroundWorker1.ReportProgress(0);
return;
}
}
//If the process exits the loop, ensure that progress is set to 100%
//Remember in the loop we set i < 100 so in theory the process will complete at 99%
backgroundWorker1.ReportProgress(100);
}
private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;
}
private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
lblStatus.Text = "Process was cancelled";
}
else if (e.Error != null)
{
lblStatus.Text = "There was an error running the process. The thread aborted";
}
else
{
lblStatus.Text = "Process was completed";
}
}
Print the contents of a DIV
Here is an IFrame solution that works for IE and Chrome:
function printHTML(htmlString) {
var newIframe = document.createElement('iframe');
newIframe.width = '1px';
newIframe.height = '1px';
newIframe.src = 'about:blank';
// for IE wait for the IFrame to load so we can access contentWindow.document.body
newIframe.onload = function() {
var script_tag = newIframe.contentWindow.document.createElement("script");
script_tag.type = "text/javascript";
var script = newIframe.contentWindow.document.createTextNode('function Print(){ window.focus(); window.print(); }');
script_tag.appendChild(script);
newIframe.contentWindow.document.body.innerHTML = htmlString;
newIframe.contentWindow.document.body.appendChild(script_tag);
// for chrome, a timeout for loading large amounts of content
setTimeout(function() {
newIframe.contentWindow.Print();
newIframe.contentWindow.document.body.removeChild(script_tag);
newIframe.parentElement.removeChild(newIframe);
}, 200);
};
document.body.appendChild(newIframe);
}
After MySQL install via Brew, I get the error - The server quit without updating PID file
I had this issue on mac 10.10.5 Yosemite
What I did to solve this
cd /usr/local/var/mysql
sudo rm *.err && sudo rm *.pid
sudo reboot
sudo mysql.server start
Angular-Material DateTime Picker Component?
Unfortunately, the answer to your question of whether there is official Material support for selecting the time is "No", but it's currently an open issue on the official Material2 GitHub repo: https://github.com/angular/material2/issues/5648
Hopefully this changes soon, in the mean time, you'll have to fight with the 3rd-party ones you've already discovered. There are a few people in that GitHub issue that provide their self-made workarounds that you can try.
How to solve Permission denied (publickey) error when using Git?
I was able to get over this issue by following below steps in my ubuntu system. As i was experimenting with passwordless ssh to the system.
sudo vi /etc/ssh/sshd_config
1) Commented below : #Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes PasswordAuthentication no ----> commented this.
2) Then restarted the sshd daemon as below.
service sshd restart
error: command 'gcc' failed with exit status 1 while installing eventlet
This page is gonna save your life, for all further lib issues that are forthcoming,
For Alpine(>=3.6),
use apk --update --upgrade add gcc musl-dev jpeg-dev zlib-dev libffi-dev cairo-dev pango-dev gdk-pixbuf-dev
What is the maximum length of a table name in Oracle?
Oracle database object names maximum length is 30 bytes.
Object Name Rules: http://docs.oracle.com/database/121/SQLRF/sql_elements008.htm
Installing SetupTools on 64-bit Windows
Create a file named python2.7.reg (registry file) and put this content into it:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\Help]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\Help\MainPythonDocumentation]
@="C:\\Python27\\Doc\\python26.chm"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\InstallPath]
@="C:\\Python27\\"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\InstallPath\InstallGroup]
@="Python 2.7"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\Modules]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\PythonPath]
@="C:\\Python27\\Lib;C:\\Python27\\DLLs;C:\\Python27\\Lib\\lib-tk"
And make sure every path is right!
Then run (merge) it and done :)
Warning: mysqli_query() expects parameter 1 to be mysqli, resource given
You are using improper syntax. If you read the docs mysqli_query() you will find that it needs two parameter.
mixed mysqli_query ( mysqli $link , string $query [, int $resultmode = MYSQLI_STORE_RESULT ] )
mysql $link generally means, the resource object of the established mysqli connection to query the database.
So there are two ways of solving this problem
mysqli_query();
$myConnection= mysqli_connect("$db_host","$db_username","$db_pass", "mrmagicadam") or die ("could not connect to mysql");
$sqlCommand="SELECT id, linklabel FROM pages ORDER BY pageorder ASC";
$query=mysqli_query($myConnection, $sqlCommand) or die(mysqli_error($myConnection));
Or, Using mysql_query() (This is now obselete)
$myConnection= mysql_connect("$db_host","$db_username","$db_pass") or die ("could not connect to mysql");
mysql_select_db("mrmagicadam") or die ("no database");
$sqlCommand="SELECT id, linklabel FROM pages ORDER BY pageorder ASC";
$query=mysql_query($sqlCommand) or die(mysql_error());
As pointed out in the comments, be aware of using die to just get the error. It might inadvertently give the viewer some sensitive information .
How can I simulate a click to an anchor tag?
There is a simpler way to achieve it,
HTML
<a href="https://getbootstrap.com/" id="fooLinkID" target="_blank">Bootstrap is life !</a>
JavaScript
// Simulating click after 3 seconds
setTimeout(function(){
document.getElementById('fooLinkID').click();
}, 3 * 1000);
Using plain javascript to simulate a click along with addressing the target property.
You can check working example here on jsFiddle.
How to set OnClickListener on a RadioButton in Android?
Since this question isn't specific to Java, I would like to add how you can do it in Kotlin:
radio_group_id.setOnCheckedChangeListener({ radioGroup, optionId -> {
when (optionId) {
R.id.radio_button_1 -> {
// do something when radio button 1 is selected
}
// add more cases here to handle other buttons in the RadioGroup
}
}
})
Here radio_group_id is the assigned android:id of the concerned RadioGroup. To use it this way you would need to import kotlinx.android.synthetic.main.your_layout_name.* in your activity's Kotlin file. Also note that in case the radioGroup lambda parameter is unused, it can be replaced with _ (an underscore) since Kotlin 1.1.
How to compare strings
You could use strcmp():
/* strcmp example */
#include <stdio.h>
#include <string.h>
int main ()
{
char szKey[] = "apple";
char szInput[80];
do {
printf ("Guess my favourite fruit? ");
gets (szInput);
} while (strcmp (szKey,szInput) != 0);
puts ("Correct answer!");
return 0;
}
Why call git branch --unset-upstream to fixup?
This might solve your problem.
after doing changes you can commit it and then
git remote add origin https://(address of your repo) it can be https or ssh
then
git push -u origin master
hope it works for you.
thanks
How to automatically insert a blank row after a group of data
Select your array, including column labels, DATA > Outline -Subtotal, At each change in: column1, Use function: Count, Add subtotal to: column3, check Replace current subtotals and Summary below data, OK.
Filter and select for Column1, Text Filters, Contains..., Count, OK. Select all visible apart from the labels and delete contents. Remove filter and, if desired, ungroup rows.
Should I use SVN or Git?
I would set up a Subversion repository. By doing it this way, individual developers can choose whether to use Subversion clients or Git clients (with git-svn). Using git-svn doesn't give you all the benefits of a full Git solution, but it does give individual developers a great deal of control over their own workflow.
I believe it will be a relatively short time before Git works just as well on Windows as it does on Unix and Mac OS X (since you asked).
Subversion has excellent tools for Windows, such as TortoiseSVN for Explorer integration and AnkhSVN for Visual Studio integration.
jQuery counter to count up to a target number
I do not know about any existing plugins, but it seems fairly easy to write one yourself using the JavaScript Timing Events.
SQL "select where not in subquery" returns no results
Let's suppose these values for common_id:
Common - 1
Table1 - 2
Table2 - 3, null
We want the row in Common to return, because it doesn't exist in any of the other tables. However, the null throws in a monkey wrench.
With those values, the query is equivalent to:
select *
from Common
where 1 not in (2)
and 1 not in (3, null)
That is equivalent to:
select *
from Common
where not (1=2)
and not (1=3 or 1=null)
This is where the problem starts. When comparing with a null, the answer is unknown. So the query reduces to
select *
from Common
where not (false)
and not (false or unkown)
false or unknown is unknown:
select *
from Common
where true
and not (unknown)
true and not unkown is also unkown:
select *
from Common
where unknown
The where condition does not return records where the result is unkown, so we get no records back.
One way to deal with this is to use the exists operator rather than in. Exists never returns unkown because it operates on rows rather than columns. (A row either exists or it doesn't; none of this null ambiguity at the row level!)
select *
from Common
where not exists (select common_id from Table1 where common_id = Common.common_id)
and not exists (select common_id from Table2 where common_id = Common.common_id)
PHP UML Generator
Here's how I did it (directly from code to PDF drawing without manual drawing of anything):
- Use BOUML for "reverse engineering PHP code" [sic] to extract the class model (BOUML is available from "universe" repository of Ubuntu). I seriously recommend BOUML for this step because it's really fast compared to many other programs I have tried. In addition, it seems that BOUML seems to extract the model correctly (for the parts that BOUML even tries to extract).
- Use BOUML to export model as XMI 1.4 file
- Use ArgoUML to import said XMI file (you can use webstart version for this step)
- Export XMI from ArgoUML (I don't know which XMI version/variant the output is but it is not the same result as the output from BOUML. The argouml-graphviz cannot handle XMI file directly from BOUML).
- Use argouml-graphviz to convert ArgoUML exported XMI file to dot format (you may need to use saxon instead of xsltproc to get it work due to use of XSLT2)
- Use dot or fdp or sfdp to render the class diagram.
Here's an example of suitable command line for using fdp to output PDF diagram (assuming that dot file generated by argouml-graphviz XLST processing is saved as xmi-model.dot):
fdp -Tpdf -Gmaxiter=1000 -Gmindist=0.5 -Gpackmode=node \
-Eweight=0.05 -Elen=1.0 -Eminlen=1.0 -Gsplines=true \
-Goverlap=false xmi-model.dot -oxmi-model.pdf
As an alternative you could try PHP_UML or php2xmi instead of BOUML for doing the "reverse engineering" part. I haven't yet tried that.
(I'm using the phrase "reverse engineering" because it seems that UML people are using those words when they mean extracting class and method information from the source code. I would personally interpret those words as extracting information from executable binary file or captured raw wire data.)
If you prefer drawing the class diagram by hand (instead of using computer to do all the drawing), you can use either BOUML or ArgoUML for the drawing. Using the "reverse engineered" data via BOUML will help in that case.
mysql stored-procedure: out parameter
SET out_number=SQRT(input_number);
Instead of this write:
select SQRT(input_number);
Please don't write SET out_number and your input parameter should be:
PROCEDURE `test`.`my_sqrt`(IN input_number INT, OUT out_number FLOAT)
Dart SDK is not configured
Downloading and Configuring the Dart SDK
If you don’t already have the Dart SDK, install it. You can get it either by itself or by downloading the Flutter SDK, which (as of Flutter 1.21) includes the full Dart SDK.
Choose one:
Here’s one way to configure Dart support:
Start the IDE, and install the
Dartplugin. To find the Dartplugin, from the Welcome screen chooseConfigure > Plugins, then clickInstall JetBrains plugin, and then search or scroll down until you find Dart. Once you've installed the Dart plugin, restart the IDE.Create a new Dart project:
- From the Welcome screen, click
Create New Project. - In the next dialog, click
Dart.
- From the Welcome screen, click
If you don't see a value for the
Dart SDKpath, enter it.- For example, the SDK path might be
<dart installation directory>/dart/dart-sdk.
- For example, the SDK path might be