SyntaxFix

Programs & Examples On #Xslt 1.0

Use this tag for questions specific to XSL Transformations version 1.0 and no other version.

XSLT string replace

The rouine is pretty good, however it causes my app to hang, so I needed to add the case:

  <xsl:when test="$text = '' or $replace = ''or not($replace)" >
    <xsl:value-of select="$text" />
    <!-- Prevent thsi routine from hanging -->
  </xsl:when>

before the function gets called recursively.

I got the answer from here: When test hanging in an infinite loop

Thank you!

XSL xsl:template match="/"

The value of the match attribute of the <xsl:template> instruction must be a match pattern.

Match patterns form a subset of the set of all possible XPath expressions. The first, natural, limitation is that a match pattern must select a set of nodes. There are also other limitations. In particular, reverse axes are not allowed in the location steps (but can be specified within the predicates). Also, no variable or parameter references are allowed in XSLT 1.0, but using these is legal in XSLT 2.x.

/ in XPath denotes the root or document node. In XPath 2.0 (and hence XSLT 2.x) this can also be written as document-node().

A match pattern can contain the // abbreviation.

Examples of match patterns:

<xsl:template match="table">

can be applied on any element named table.

<xsl:template match="x/y">

can be applied on any element named y whose parent is an element named x.

<xsl:template match="*">

can be applied to any element.

<xsl:template match="/*">

can be applied only to the top element of an XML document.

<xsl:template match="@*">

can be applied to any attribute.

<xsl:template match="text()">

can be applied to any text node.

<xsl:template match="comment()">

can be applied to any comment node.

<xsl:template match="processing-instruction()">

can be applied to any processing instruction node.

<xsl:template match="node()">

can be applied to any node: element, text, comment or processing instructon.

To compare two elements(string type) in XSLT?

First of all, the provided long code:

    <xsl:choose>
        <xsl:when test="OU_NAME='OU_ADDR1'">   --comparing two elements coming from XML             
            <!--remove if  adrees already contain  operating unit name <xsl:value-of select="OU_NAME"/> <fo:block/>-->
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:value-of select="OU_NAME"/>
            <fo:block/>
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>
        </xsl:otherwise>
    </xsl:choose>

is equivalent to this, much shorter code:

<xsl:if test="not(OU_NAME='OU_ADDR1)'">
              <xsl:value-of select="OU_NAME"/>
        </xsl:if>
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>

Now, to your question:

how to compare two elements coming from xml as string

In Xpath 1.0 strings can be compared only for equality (or inequality), using the operator = and the function not() together with the operator =.

$str1 = $str2

evaluates to true() exactly when the string $str1 is equal to the string $str2.

not($str1 = $str2)

evaluates to true() exactly when the string $str1 is not equal to the string $str2.

There is also the != operator. It generally should be avoided because it has anomalous behavior whenever one of its operands is a node-set.

Now, the rules for comparing two element nodes are similar:

$el1 = $el2

evaluates to true() exactly when the string value of $el1 is equal to the string value of $el2.

not($el1 = $el2)

evaluates to true() exactly when the string value of $el1 is not equal to the string value of $el2.

However, if one of the operands of = is a node-set, then 

 $ns = $str

evaluates to true() exactly when there is at least one node in the node-set $ns1, whose string value is equal to the string $str

$ns1 = $ns2

evaluates to true() exactly when there is at least one node in the node-set $ns1, whose string value is equal to the string value of some node from $ns2

Therefore, the expression:

OU_NAME='OU_ADDR1'

evaluates to true() only when there is at least one element child of the current node that is named OU_NAME and whose string value is the string 'OU_ADDR1'.

This is obviously not what you want!

Most probably you want:

OU_NAME=OU_ADDR1

This expression evaluates to true exactly there is at least one OU_NAME child of the current node and one OU_ADDR1 child of the current node with the same string value.

Finally, in XPath 2.0, strings can be compared also using the value comparison operators lt, le, eq, gt, ge and the inherited from XPath 1.0 general comparison operator =.

Trying to evaluate a value comparison operator when one or both of its arguments is a sequence of more than one item results in error.

How do you add an image?

Shouldn't that be:

<xsl:value-of select="/root/Image/img/@src"/>

? It looks like you are trying to copy the entire Image/img node to the attribute @src

Check if a string is null or empty in XSLT

 
test="categoryName != ''"

Edit: This covers the most likely interpretation, in my opinion, of "[not] null or empty" as inferred from the question, including it's pseudo-code and my own early experience with XSLT. I.e., "What is the equivalent of the following Java?":

!(categoryName == null || categoryName.equals(""))

For more details e.g., distinctly identifying null vs. empty, see johnvey's answer below and/or the XSLT 'fiddle' I've adapted from that answer, which includes the option in Michael Kay's comment as well as the sixth possible interpretation.

xsl: how to split strings?

I. Plain XSLT 1.0 solution:

This transformation:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>

 <xsl:template match="text()" name="split">
  <xsl:param name="pText" select="."/>
  <xsl:if test="string-length($pText)">
   <xsl:if test="not($pText=.)">
    <br />
   </xsl:if>
   <xsl:value-of select=
    "substring-before(concat($pText,';'),';')"/>
   <xsl:call-template name="split">
    <xsl:with-param name="pText" select=
     "substring-after($pText, ';')"/>
   </xsl:call-template>
  </xsl:if>
 </xsl:template>
</xsl:stylesheet>

when applied on this XML document:

<t>123 Elm Street;PO Box 222;c/o James Jones</t>

produces the wanted, corrected result:

123 Elm Street<br />PO Box 222<br />c/o James Jones

II. FXSL 1 (for XSLT 1.0):

Here we just use the FXSL template str-map (and do not have to write recursive template for the 999th time):

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:f="http://fxsl.sf.net/"
xmlns:testmap="testmap"
exclude-result-prefixes="xsl f testmap"
>
   <xsl:import href="str-dvc-map.xsl"/>

   <testmap:testmap/>

   <xsl:output omit-xml-declaration="yes" indent="yes"/>

   <xsl:template match="/">
     <xsl:variable name="vTestMap" select="document('')/*/testmap:*[1]"/>
     <xsl:call-template name="str-map">
       <xsl:with-param name="pFun" select="$vTestMap"/>
       <xsl:with-param name="pStr" select=
       "'123 Elm Street;PO Box 222;c/o James Jones'"/>
     </xsl:call-template>
   </xsl:template>

    <xsl:template name="replace" mode="f:FXSL"
         match="*[namespace-uri() = 'testmap']">
      <xsl:param name="arg1"/>

      <xsl:choose>
       <xsl:when test="not($arg1=';')">
        <xsl:value-of select="$arg1"/>
       </xsl:when>
       <xsl:otherwise><br /></xsl:otherwise>
      </xsl:choose>
    </xsl:template>
</xsl:stylesheet>

when this transformation is applied on any XML document (not used), the same, wanted correct result is produced:

123 Elm Street<br/>PO Box 222<br/>c/o James Jones

III. Using XSLT 2.0

<xsl:stylesheet version="2.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>

 <xsl:template match="text()">
  <xsl:for-each select="tokenize(.,';')">
   <xsl:sequence select="."/>
   <xsl:if test="not(position() eq last())"><br /></xsl:if>
  </xsl:for-each>
 </xsl:template>
</xsl:stylesheet>

when this transformation is applied on this XML document:

<t>123 Elm Street;PO Box 222;c/o James Jones</t>

the wanted, correct result is produced:

123 Elm Street<br />PO Box 222<br />c/o James Jones

What does "O(1) access time" mean?

"Big O notation" is a way to express the speed of algorithms. n is the amount of data the algorithm is working with. O(1) means that, no matter how much data, it will execute in constant time. O(n) means that it is proportional to the amount of data.

Delete a row in DataGridView Control in VB.NET

Assuming you are using Windows forms, you could allow the user to select a row and in the delete key click event. It is recommended that you allow the user to select 1 row only and not a group of rows (myDataGridView.MultiSelect = false)

Private Sub pbtnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click

        If myDataGridView.SelectedRows.Count > 0 Then
            'you may want to add a confirmation message, and if the user confirms delete
            myDataGridView.Rows.Remove(myDataGridView.SelectedRows(0))
        Else
            MessageBox.Show("Select 1 row before you hit Delete")
        End If

    End Sub

Note that this will not delete the row form the database until you perform the delete in the database.

How can I add a column that doesn't allow nulls in a Postgresql database?

Specifying a default value would also work, assuming a default value is appropriate.

Converting float to char*

In Arduino:

//temporarily holds data from vals
char charVal[10];                

//4 is mininum width, 3 is precision; float value is copied onto buff
dtostrf(123.234, 4, 3, charVal);

monitor.print("charVal: ");
monitor.println(charVal);

How to close <img> tag properly?

The best use of tags you should use:

<img src="" alt=""/>

Also you can use in HTML5:

<img src="" alt="">

These two are completely valid in HTML5 Pick one of them and stick with that.

Create a map with clickable provinces/states using SVG, HTML/CSS, ImageMap

Sounds like you want a simple imagemap, I'd recommend to not make it more complex than it needs to be. Here's an article on how to improve imagemaps with svg. It's very easy to do clickable regions in svg itself, just add some <a> elements around the shapes you want to have clickable.

A couple of options if you need something more advanced:

Adding files to a GitHub repository

You can use Git GUI on Windows, see instructions:

  1. Open the Git Gui (After installing the Git on your computer).

enter image description here

  1. Clone your repository to your local hard drive:

enter image description here

  1. After cloning, GUI opens, choose: "Rescan" for changes that you made:

enter image description here

  1. You will notice the scanned files:

enter image description here

  1. Click on "Stage Changed":

enter image description here

  1. Approve and click "Commit":

enter image description here

  1. Click on "Push":

enter image description here

  1. Click on "Push":

enter image description here

  1. Wait for the files to upload to git:

enter image description here

enter image description here

How to append the output to a file?

Yeah.

command >> file to redirect just stdout of command.

command >> file 2>&1 to redirect stdout and stderr to the file (works in bash, zsh)

And if you need to use sudo, remember that just

sudo command >> /file/requiring/sudo/privileges does not work, as privilege elevation applies to command but not shell redirection part. However, simply using tee solves the problem:

command | sudo tee -a /file/requiring/sudo/privileges

Installing Java 7 (Oracle) in Debian via apt-get

Managed to get answer after do some google..

echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
# Java 7
apt-get install oracle-java7-installer
# For Java 8 command is:
apt-get install oracle-java8-installer

Concatenate columns in Apache Spark DataFrame

Here is a suggestion for when you don't know the number or name of the columns in the Dataframe.

val dfResults = dfSource.select(concat_ws(",",dfSource.columns.map(c => col(c)): _*))

Ajax Upload image

You can use jquery.form.js plugin to upload image via ajax to the server.

http://malsup.com/jquery/form/

Here is the sample jQuery ajax image upload script

(function() {
$('form').ajaxForm({
    beforeSubmit: function() {  
        //do validation here


    },

    beforeSend:function(){
       $('#loader').show();
       $('#image_upload').hide();
    },
    success: function(msg) {

        ///on success do some here
    }
}); })();

If you have any doubt, please refer following ajax image upload tutorial here

http://www.smarttutorials.net/ajax-image-upload-using-jquery-php-mysql/

Change a column type from Date to DateTime during ROR migration

First in your terminal:

rails g migration change_date_format_in_my_table

Then in your migration file:

For Rails >= 3.2:

class ChangeDateFormatInMyTable < ActiveRecord::Migration
  def up
    change_column :my_table, :my_column, :datetime
  end

  def down
    change_column :my_table, :my_column, :date
  end
end

Failed to connect to mailserver at "localhost" port 25

If you are running your application just on localhost and it is not yet live, I believe it is very difficult to send mail using this.

Once you put your application online, I believe that this problem should be automatically solved. But i think ini_set() helps you to change the values in php.ini during run time.

Python ValueError: too many values to unpack

 
for k, m in self.materials.items():

example:

miles_dict = {'Monday':1, 'Tuesday':2.3, 'Wednesday':3.5, 'Thursday':0.9}
for k, v in miles_dict.items():
    print("%s: %s" % (k, v))

Writing numerical values on the plot with Matplotlib

Use pyplot.text() (import matplotlib.pyplot as plt)

import matplotlib.pyplot as plt

x=[1,2,3]
y=[9,8,7]

plt.plot(x,y)
for a,b in zip(x, y): 
    plt.text(a, b, str(b))
plt.show()

jquery loop on Json data using $.each

Have you converted your data from string to JavaScript object?

You can do it with data = eval('(' + string_data + ')'); or, which is safer, data = JSON.parse(string_data); but later will only works in FF 3.5 or if you include json2.js

jQuery since 1.4.1 also have function for that, $.parseJSON().

But actually, $.getJSON() should give you already parsed json object, so you should just check everything thoroughly, there is little mistake buried somewhere, like you might have forgotten to quote something in json, or one of the brackets is missing.

How do I remove my IntelliJ license in 2019.3?

For Windows : Using batch program.

Write this code in a text file and save it.

REM Delete eval folder with licence key and options.xml which contains a reference  to it
for %%I in ("WebStorm", "IntelliJ", "CLion", "Rider", "GoLand", "PhpStorm") do (
  for /d %%a in ("%USERPROFILE%\.%%I*") do (
    rd /s /q "%%a/config/eval"
    del /q "%%a\config\options\other.xml"
  )
)

REM Delete registry key and jetbrains folder (not sure if needet but however)
rmdir /s /q "%APPDATA%\JetBrains"
reg delete "HKEY_CURRENT_USER\Software\JavaSoft" /f

Now rename the file fileName.txt to fileName.bat

Close phpstorm if running. Disconnect internet. Then run the file. Open phpstorm again. If nothing goes wrong you will see the magic.

worst case : If phpstorm still shows "License Expired", at first uninstall and then apply the above technique.

plot data from CSV file with matplotlib

According to the docs numpy.loadtxt is

a fast reader for simply formatted files. The genfromtxt function provides more sophisticated handling of, e.g., lines with missing values.

so there are only a few options to handle more complicated files. As mentioned numpy.genfromtxt has more options. So as an example you could use

import numpy as np
data = np.genfromtxt('e:\dir1\datafile.csv', delimiter=',', skip_header=10,
                     skip_footer=10, names=['x', 'y', 'z'])

to read the data and assign names to the columns (or read a header line from the file with names=True) and than plot it with

ax1.plot(data['x'], data['y'], color='r', label='the data')

I think numpy is quite well documented now. You can easily inspect the docstrings from within ipython or by using an IDE like spider if you prefer to read them rendered as HTML.

What exactly does big ? notation represent?

First of All Theory

  1. Big O = Upper Limit O(n)

  2. Theta = Order Function - theta(n)

  3. Omega = Q-Notation(Lower Limit) Q(n)

Why People Are so Confused?

In many Blogs & Books How this Statement is emphasised is Like

"This is Big O(n^3)" etc.

and people often Confuse like weather

O(n) == theta(n) == Q(n)

But What Worth keeping in mind is They Are Just Mathematical Function With Names O, Theta & Omega

so they have same General Formula of Polynomial,

Let,

f(n) = 2n4 + 100n2 + 10n + 50 then,

g(n) = n4, So g(n) is Function which Take function as Input and returns Variable with Biggerst Power,

Same f(n) & g(n) for Below all explainations

Big O - Function (Provides Upper Bound)

Big O(n4) = 3n4, Because 3n4 > 2n4

3n4 is value of Big O(n4) Just like f(x) = 3x

n4 is playing a role of x here so,

Replacing n4 with x'so, Big O(x') = 2x', Now we both are happy General Concept is

So 0 = f(n) = O(x')

O(x') = cg(n) = 3n4

Putting Value,

0 = 2n4 + 100n2 + 10n + 50 = 3n4

3n4 is our Upper Bound

Theta(n) Provides Lower Bound

Theta(n4) = cg(n) = 2n4 Because 2n4 = Our Example f(n)

2n4 is Value of Theta(n4)

so, 0 = cg(n) = f(n)

0 = 2n4 = 2n4 + 100n2 + 10n + 50

2n4 is our Lower Bound

Omega n - Order Function

This is Calculated to find out that weather lower Bound is similar to Upper bound,

Case 1). Upper Bound is Similar to Lower Bound

if Upper Bound is Similar to Lower Bound, The Average Case is Similar

Example, 2n4 = f(x) = 2n4,
Then Omega(n) = 2n4

Case 2). if Upper Bound is not Similar to Lower Bound

in this case, Omega(n) is Not fixed but Omega(n) is the set of functions with the same order of growth as g(n).

Example 2n4 = f(x) = 3n4, This is Our Default Case,
Then, Omega(n) = c'n4, is a set of functions with 2 = c' = 3

Hope This Explained!!

Writing handler for UIAlertAction

Instead of self in your handler, put (alert: UIAlertAction!). This should make your code look like this 

    alert.addAction(UIAlertAction(title: "Okay",
                          style: UIAlertActionStyle.Default,
                        handler: {(alert: UIAlertAction!) in println("Foo")}))

this is the proper way to define handlers in Swift.

As Brian pointed out below, there are also easier ways to define these handlers. Using his methods is discussed in the book, look at the section titled Closures

Return Max Value of range that is determined by an Index & Match lookup

You can easily change the match-type to 1 when you are looking for the greatest value or to -1 when looking for the smallest value.

Node.js create folder or use existing

Edit: Because this answer is very popular, I have updated it to reflect up-to-date practices.

Node >=10

The new { recursive: true } option of Node's fs now allows this natively. This option mimics the behaviour of UNIX's mkdir -p. It will recursively make sure every part of the path exist, and will not throw an error if any of them do.

(Note: it might still throw errors such as EPERM or EACCESS, so better still wrap it in a try {} catch (e) {} if your implementation is susceptible to it.)

Synchronous version.

fs.mkdirSync(dirpath, { recursive: true })

Async version

await fs.promises.mkdir(dirpath, { recursive: true })

Older Node versions

Using a try {} catch (err) {}, you can achieve this very gracefully without encountering a race condition.

In order to prevent dead time between checking for existence and creating the directory, we simply try to create it straight up, and disregard the error if it is EEXIST (directory already exists).

If the error is not EEXIST, however, we ought to throw an error, because we could be dealing with something like an EPERM or EACCES

function ensureDirSync (dirpath) {
  try {
    return fs.mkdirSync(dirpath)
  } catch (err) {
    if (err.code !== 'EEXIST') throw err
  }
}

For mkdir -p-like recursive behaviour, e.g. ./a/b/c, you'd have to call it on every part of the dirpath, e.g. ./a, ./a/b, .a/b/c

How to redirect output of systemd service to a file

You possibly get this error:

Failed to parse output specifier, ignoring: /var/log1.log

From the systemd.exec(5) man page:

StandardOutput=

Controls where file descriptor 1 (STDOUT) of the executed processes is connected to. Takes one of inherit, null, tty, journal, syslog, kmsg, journal+console, syslog+console, kmsg+console or socket.

The systemd.exec(5) man page explains other options related to logging. See also the systemd.service(5) and systemd.unit(5) man pages.

Or maybe you can try things like this (all on one line):

ExecStart=/bin/sh -c '/usr/local/bin/binary1 agent -config-dir /etc/sample.d/server 2>&1 > /var/log.log'

How to convert NUM to INT in R?

You can use convert from hablar to change a column of the data frame quickly.

library(tidyverse)
library(hablar)

x <- tibble(var = c(1.34, 4.45, 6.98))

x %>% 
  convert(int(var))

gives you:

# A tibble: 3 x 1
    var
  <int>
1     1
2     4
3     6

How do I create an iCal-type .ics file that can be downloaded by other users?

There is also this tool you can use. It supports multi-events .ics file creation. It also supports timezone as well.

http://apps.marudot.com/ical/

How to loop through file names returned by find?

 
# Doesn't handle whitespace
for x in `find . -name "*.txt" -print`; do
  process_one $x
done

or

# Handles whitespace and newlines
find . -name "*.txt" -print0 | xargs -0 -n 1 process_one

Cast a Double Variable to Decimal

Well this is an old question and I indeed made use of some of the answers shown here. Nevertheless, in my particular scenario it was possible that the double value that I wanted to convert to decimal was often bigger than decimal.MaxValue. So, instead of handling exceptions I wrote this extension method:

    public static decimal ToDecimal(this double @double) => 
        @double > (double) decimal.MaxValue ? decimal.MaxValue : (decimal) @double;

The above approach works if you do not want to bother handling overflow exceptions and if such a thing happen you want just to keep the max possible value(my case), but I am aware that for many other scenarios this would not be the expected behavior and may be the exception handling will be needed.

When and why to 'return false' in JavaScript?

I also came to this page after searching "js, when to use 'return false;' Among the other search results was a page I found far more useful and straightforward, on Chris Coyier's CSS-Tricks site: The difference between ‘return false;’ and ‘e.preventDefault();’

The gist of his article is:

function() { return false; }

// IS EQUAL TO

function(e) { e.preventDefault(); e.stopPropagation(); }

though I would still recommend reading the whole article.

Update: After arguing the merits of using return false; as a replacement for e.preventDefault(); & e.stopPropagation(); one of my co-workers pointed out that return false also stops callback execution, as outlined in this article: jQuery Events: Stop (Mis)Using Return False.

RegEx for matching UK Postcodes

What i have found in nearly all the variations and the regex from the bulk transfer pdf and what is on wikipedia site is this, specifically for the wikipedia regex is, there needs to be a ^ after the first |(vertical bar). I figured this out by testing for AA9A 9AA, because otherwise the format check for A9A 9AA will validate it. For Example checking for EC1D 1BB which should be invalid comes back valid because C1D 1BB is a valid format.

Here is what I've come up with for a good regex:

^([G][I][R] 0[A]{2})|^((([A-Z-[QVX]][0-9]{1,2})|([A-Z-[QVX]][A-HK-Y][0-9]{1,2})|([A-Z-[QVX]][0-9][ABCDEFGHJKPSTUW])|([A-Z-[QVX]][A-HK-Y][0-9][ABEHMNPRVWXY])) [0-9][A-Z-[CIKMOV]]{2})$

R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?

R doesn't have these operations because (most) objects in R are immutable. They do not change. Typically, when it looks like you're modifying an object, you're actually modifying a copy.

Difference between HashMap, LinkedHashMap and TreeMap

All three classes implement the Map interface and offer mostly the same functionality. The most important difference is the order in which iteration through the entries will happen:

  • HashMap makes absolutely no guarantees about the iteration order. It can (and will) even change completely when new elements are added.
  • TreeMap will iterate according to the "natural ordering" of the keys according to their compareTo() method (or an externally supplied Comparator). Additionally, it implements the SortedMap interface, which contains methods that depend on this sort order.
  • LinkedHashMap will iterate in the order in which the entries were put into the map

"Hashtable" is the generic name for hash-based maps. In the context of the Java API, Hashtable is an obsolete class from the days of Java 1.1 before the collections framework existed. It should not be used anymore, because its API is cluttered with obsolete methods that duplicate functionality, and its methods are synchronized (which can decrease performance and is generally useless). Use ConcurrentHashMap instead of Hashtable.

how to open an URL in Swift3

All you need is:

guard let url = URL(string: "http://www.google.com") else {
  return //be safe
}

if #available(iOS 10.0, *) {
    UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
    UIApplication.shared.openURL(url)
}

Differences between Emacs and Vim

I would like to put here a quote from the book "The Art of UNIX Programming":

Many people who regularly use both vi and Emacs tend to use them for different things, and find it valuable to know both.

In general, vi is best for small jobs – quick replies to mail, simple tweaks to system configuration, and the like. It is especially useful when you’re using a new system (or a remote one over a network) and don’t have your Emacs customization files handy.

Emacs comes into its own for extended editing sessions in which you have to handle complex tasks, modify multiple files, and use results from other programs during the session. For programmers using X on their console (which is typical on modern Unixes), it’s normal to start up Emacs shortly after login time in a large window and leave it running forever, possibly visiting dozens of files and even running programs in multiple Emacs subwindows.

What I really want to highlight here is the: «Many people find it valuable to know both.»

AngularJS: Uncaught Error: [$injector:modulerr] Failed to instantiate module?

it turns out that I got this error because my requested module is not bundled in the minification prosses due to path misspelling

so make sure that your module exists in minified js file (do search for a word within it to be sure)

How to set up a squid Proxy with basic username and password authentication?

Here's what I had to do to setup basic auth on Ubuntu 14.04 (didn't find a guide anywhere else)

Basic squid conf

/etc/squid3/squid.conf instead of the super bloated default config file

auth_param basic program /usr/lib/squid3/basic_ncsa_auth /etc/squid3/passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated

# Choose the port you want. Below we set it to default 3128.
http_port 3128

Please note the basic_ncsa_auth program instead of the old ncsa_auth

squid 2.x

For squid 2.x you need to edit /etc/squid/squid.conf file and place:

auth_param basic program /usr/lib/squid/digest_pw_auth /etc/squid/passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated

Setting up a user

sudo htpasswd -c /etc/squid3/passwords username_you_like

and enter a password twice for the chosen username then

sudo service squid3 restart

squid 2.x

sudo htpasswd -c /etc/squid/passwords username_you_like

and enter a password twice for the chosen username then

sudo service squid restart

htdigest vs htpasswd

For the many people that asked me: the 2 tools produce different file formats:

  • htdigest stores the password in plain text.
  • htpasswd stores the password hashed (various hashing algos are available)

Despite this difference in format basic_ncsa_auth will still be able to parse a password file generated with htdigest. Hence you can alternatively use:

sudo htdigest -c /etc/squid3/passwords realm_you_like username_you_like

Beware that this approach is empirical, undocumented and may not be supported by future versions of Squid.

On Ubuntu 14.04 htdigest and htpasswd are both available in the [apache2-utils][1] package.

MacOS

Similar as above applies, but file paths are different.

Install squid

brew install squid

Start squid service

brew services start squid

Squid config file is stored at /usr/local/etc/squid.conf.

Comment or remove following line:

http_access allow localnet

Then similar to linux config (but with updated paths) add this:

auth_param basic program /usr/local/Cellar/squid/4.8/libexec/basic_ncsa_auth /usr/local/etc/squid_passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated

Note that path to basic_ncsa_auth may be different since it depends on installed version when using brew, you can verify this with ls /usr/local/Cellar/squid/. Also note that you should add the above just bellow the following section:

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

Now generate yourself a user:password basic auth credential (note: htpasswd and htdigest are also both available on MacOS)

htpasswd -c /usr/local/etc/squid_passwords username_you_like

Restart the squid service

brew services restart squid

How can I change the Java Runtime Version on Windows (7)?

Since Java 1.6, a java.exe is installed into %windir%\system32 that supports a "-version" command line option. You can use this to select a specific version to run, e.g.:

java -version:1.7 -jar [path to jar file]

will run a jar application in java 1.7, if it is installed.

See Oracle's documentation here: http://docs.oracle.com/javase/6/docs/technotes/tools/windows/java.html

Trigger validation of all fields in Angular Form submit

Here is my global function for showing the form error messages.

 function show_validation_erros(form_error_object) {
        angular.forEach(form_error_object, function (objArrayFields, errorName) {
            angular.forEach(objArrayFields, function (objArrayField, key) {
                objArrayField.$setDirty();
            });
        });
    };

And in my any controllers,

if ($scope.form_add_sale.$invalid) { 
    $scope.global.show_validation_erros($scope.form_add_sale.$error);
}

How does String.Index work in Swift

 
func change(string: inout String) {

    var character: Character = .normal

    enum Character {
        case space
        case newLine
        case normal
    }

    for i in stride(from: string.count - 1, through: 0, by: -1) {
        // first get index
        let index: String.Index?
        if i != 0 {
            index = string.index(after: string.index(string.startIndex, offsetBy: i - 1))
        } else {
            index = string.startIndex
        }

        if string[index!] == "\n" {

            if character != .normal {

                if character == .newLine {
                    string.remove(at: index!)
                } else if character == .space {
                    let number = string.index(after: string.index(string.startIndex, offsetBy: i))
                    if string[number] == " " {
                        string.remove(at: number)
                    }
                    character = .newLine
                }

            } else {
                character = .newLine
            }

        } else if string[index!] == " " {

            if character != .normal {

                string.remove(at: index!)

            } else {
                character = .space
            }

        } else {

            character = .normal

        }

    }

    // startIndex
    guard string.count > 0 else { return }
    if string[string.startIndex] == "\n" || string[string.startIndex] == " " {
        string.remove(at: string.startIndex)
    }

    // endIndex - here is a little more complicated!
    guard string.count > 0 else { return }
    let index = string.index(before: string.endIndex)
    if string[index] == "\n" || string[index] == " " {
        string.remove(at: index)
    }

}

Share link on Google+

Yep! Use the link:

https://m.google.com/app/plus/x/?v=compose&content=YOUR_TEXT

It's SHARE url (not used for plus one) button.

If this will not work (not for me) try this url:

https://plusone.google.com/_/+1/confirm?hl=ru&url=_URL_&title=_TITLE_

Or see this solution:

Adding a Google Plus (one or share) link to an email newsletter

cannot import name patterns

As of Django 1.10, the patterns module has been removed (it had been deprecated since 1.8).

Luckily, it should be a simple edit to remove the offending code, since the urlpatterns should now be stored in a plain-old list:

urlpatterns = [
    url(r'^admin/', include(admin.site.urls)),
    # ... your url patterns
]

Java 8: Lambda-Streams, Filter by Method with Exception

Your example can be written as:

import utils.stream.Unthrow;

class Bank{
   ....
   public Set<String> getActiveAccountNumbers() {
       return accounts.values().stream()
           .filter(a -> Unthrow.wrap(() -> a.isActive()))
           .map(a -> Unthrow.wrap(() -> a.getNumber()))
           .collect(Collectors.toSet());
   }
   ....
}

The Unthrow class can be taken here https://github.com/SeregaLBN/StreamUnthrower

Load arrayList data into JTable

You can do something like what i did with my List< Future< String > > or any other Arraylist, Type returned from other class called PingScan that returns List> because it implements service executor. Anyway the code down note that you can use foreach and retrieve data from the List. 

 PingScan p = new PingScan();
 List<Future<String>> scanResult = p.checkThisIP(jFormattedTextField1.getText(), jFormattedTextField2.getText());
                for (final Future<String> f : scanResult) {
                    try {
                        if (f.get() instanceof String) {
                            String ip = f.get();
                            Object[] data = {ip};
                            tableModel.addRow(data);
                        }
                    } catch (InterruptedException | ExecutionException ex) {
                        Logger.getLogger(gui.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }

How to test abstract class in Java with JUnit?

As an option, you can create abstract test class covering logic inside abstract class and extend it for each subclass test. So that in this way you can ensure this logic will be tested for each child separately.

'pip install' fails for every package ("Could not find a version that satisfies the requirement")

Upgrade pip as follows:

curl https://bootstrap.pypa.io/get-pip.py | python

Note: You may need to use sudo python above if not in a virtual environment.

What's happening:

Python.org sites are stopping support for TLS versions 1.0 and 1.1. This means that Mac OS X version 10.12 (Sierra) or older will not be able to use pip unless they upgrade pip as above.

(Note that upgrading pip via pip install --upgrade pip will also not upgrade it correctly. It is a chicken-and-egg issue)

This thread explains it (thanks to this Twitter post):

Mac users who use pip and PyPI:

If you are running macOS/OS X version 10.12 or older, then you ought to upgrade to the latest pip (9.0.3) to connect to the Python Package Index securely:

curl https://bootstrap.pypa.io/get-pip.py | python

and we recommend you do that by April 8th.

Pip 9.0.3 supports TLSv1.2 when running under system Python on macOS < 10.13. Official release notes: https://pip.pypa.io/en/stable/news/

Also, the Python status page:

Completed - The rolling brownouts are finished, and TLSv1.0 and TLSv1.1 have been disabled. Apr 11, 15:37 UTC

Update - The rolling brownouts have been upgraded to a blackout, TLSv1.0 and TLSv1.1 will be rejected with a HTTP 403 at all times. Apr 8, 15:49 UTC

Lastly, to avoid other install errors, make sure you also upgrade setuptools after doing the above:

pip install --upgrade setuptools

How to play an android notification sound

Try this: 

public void ringtone(){
    try {
        Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
        r.play();
     } catch (Exception e) {
         e.printStackTrace();
     }
}

What is recursion and when should I use it?

hey, sorry if my opinion agrees with someone, I'm just trying to explain recursion in plain english.

suppose you have three managers - Jack, John and Morgan. Jack manages 2 programmers, John - 3, and Morgan - 5. you are going to give every manager 300$ and want to know what would it cost. The answer is obvious - but what if 2 of Morgan-s employees are also managers?

HERE comes the recursion. you start from the top of the hierarchy. the summery cost is 0$. you start with Jack, Then check if he has any managers as employees. if you find any of them are, check if they have any managers as employees and so on. Add 300$ to the summery cost every time you find a manager. when you are finished with Jack, go to John, his employees and then to Morgan.

You'll never know, how much cycles will you go before getting an answer, though you know how many managers you have and how many Budget can you spend.

Recursion is a tree, with branches and leaves, called parents and children respectively. When you use a recursion algorithm, you more or less consciously are building a tree from the data.

Regex for Comma delimited list

This one will reject extraneous commas at the start or end of the line, if that's important to you.

((, )?(^)?(possible|value|patterns))*

Replace possible|value|patterns with a regex that matches your allowed values.

C library function to perform sort

There are several C sorting functions available in stdlib.h. You can do man 3 qsort on a unix machine to get a listing of them but they include:

  • heapsort
  • quicksort
  • mergesort

How to remove the arrows from input[type="number"] in Opera

There is no way.

This question is basically a duplicate of Is there a way to hide the new HTML5 spinbox controls shown in Google Chrome & Opera? but maybe not a full duplicate, since the motivation is given.

If the purpose is “browser's awareness of the content being purely numeric”, then you need to consider what that would really mean. The arrows, or spinners, are part of making numeric input more comfortable in some cases. Another part is checking that the content is a valid number, and on browsers that support HTML5 input enhancements, you might be able to do that using the pattern attribute. That attribute may also affect a third input feature, namely the type of virtual keyboard that may appear.

For example, if the input should be exactly five digits (like postal numbers might be, in some countries), then <input type="text" pattern="[0-9]{5}"> could be adequate. It is of course implementation-dependent how it will be handled.

How to run sql script using SQL Server Management Studio?

This website has a concise tutorial on how to use SQL Server Management Studio. As you will see you can open a "Query Window", paste your script and run it. It does not allow you to execute scripts by using the file path. However, you can do this easily by using the command line (cmd.exe):

sqlcmd -S .\SQLExpress -i SqlScript.sql

Where SqlScript.sql is the script file name located at the current directory. See this Microsoft page for more examples

Codeigniter LIKE with wildcard(%)

If you do not want to use the wildcard (%) you can pass to the optional third argument the option 'none'.

$this->db->like('title', 'match', 'none'); 
// Produces: WHERE title LIKE 'match'

Loop over array dimension in plpgsql

Since PostgreSQL 9.1 there is the convenient FOREACH:

DO
$do$
DECLARE
   m   varchar[];
   arr varchar[] := array[['key1','val1'],['key2','val2']];
BEGIN
   FOREACH m SLICE 1 IN ARRAY arr
   LOOP
      RAISE NOTICE 'another_func(%,%)',m[1], m[2];
   END LOOP;
END
$do$

Solution for older versions:

DO
$do$
DECLARE
   arr varchar[] := '{{key1,val1},{key2,val2}}';
BEGIN
   FOR i IN array_lower(arr, 1) .. array_upper(arr, 1)
   LOOP
      RAISE NOTICE 'another_func(%,%)',arr[i][1], arr[i][2];
   END LOOP;
END
$do$

Also, there is no difference between varchar[] and varchar[][] for the PostgreSQL type system. I explain in more detail here.

The DO statement requires at least PostgreSQL 9.0, and LANGUAGE plpgsql is the default (so you can omit the declaration).

How do I sort a list of dictionaries by a value of the dictionary?

It may look cleaner using a key instead a cmp:

newlist = sorted(list_to_be_sorted, key=lambda k: k['name'])

or as J.F.Sebastian and others suggested,

from operator import itemgetter
newlist = sorted(list_to_be_sorted, key=itemgetter('name'))

For completeness (as pointed out in comments by fitzgeraldsteele), add reverse=True to sort descending

newlist = sorted(l, key=itemgetter('name'), reverse=True)

Why there is no ConcurrentHashSet against ConcurrentHashMap

It looks like Java provides a concurrent Set implementation with its ConcurrentSkipListSet. A SkipList Set is just a special kind of set implementation. It still implements the Serializable, Cloneable, Iterable, Collection, NavigableSet, Set, SortedSet interfaces. This might work for you if you only need the Set interface.

Warning - Build path specifies execution environment J2SE-1.4

Whether you're using the maven eclipse plugin or m2eclipse, Eclipse's project configuration is derived from the POM, so you need to configure the maven compiler plugin for 1.6 (it defaults to 1.4).

Add the following to your project's pom.xml, save, then go to your Eclipse project and select Properties > Maven > Update Project Configuration:

<project>
 <build>
  <pluginManagement>
   <plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>          
        <configuration>
            <source>1.6</source>
            <target>1.6</target>
        </configuration>
    </plugin>
   </plugins>
  </pluginManagement>
 </build>
</project>

Session timeout in ASP.NET

if you are want session timeout for website than remove

<authentication mode="Forms">
      <forms timeout="50"/>
</authentication>

tag from web.config file.

Conditional Count on a field

Try this:

SELECT Count(Student_ID) as 'StudentCount' 
FROM CourseSemOne
where Student_ID=3 
Having Count(Student_ID) < 6 and Count(Student_ID) > 0;

Jquery If radio button is checked

This will listen to the changed event. I have tried the answers from others but those did not work for me and finally, this one worked.

$('input:radio[name="postage"]').change(function(){
    if($(this).is(":checked")){
        alert("lksdahflk");
    }
});

How to put a UserControl into Visual Studio toolBox

I found that the user control must have a parameterless constructor or it won't show up in the list. at least that was true in vs2005.

Factorial using Recursion in Java

Your confusion, I believe, comes from the fact that you think there is only one result variable, whereas actually there is a result variable for each function call. Therefor, old results aren't replaced, but returned.

TO ELABORATE:

int fact(int n)
{
    int result;

   if(n==1)
     return 1;

   result = fact(n-1) * n;
   return result;
}

Assume a call to fact(2):

int result;
if ( n == 1 ) // false, go to next statement
result = fact(1) * 2; // calls fact(1):
|    
|fact(1)
|    int result;  //different variable
|    if ( n == 1 )  // true
|        return 1;  // this will return 1, i.e. call to fact(1) is 1
result = 1 * 2; // because fact(1) = 1
return 2;

Hope it's clearer now.

How do I import a .bak file into Microsoft SQL Server 2012?

Using the RESTORE DATABASE command most likely. bak is a common extension used for a database backup file. You'll find documentation for this command on MSDN.

Run a Docker image as a container

The specific way to run it depends on whether you gave the image a tag/name or not.

$ docker images
REPOSITORY          TAG                 ID                  CREATED             SIZE
ubuntu              12.04               8dbd9e392a96        4 months ago        131.5 MB (virtual 131.5 MB)

With a name (let's use Ubuntu):

$ docker run -i -t ubuntu:12.04 /bin/bash

Without a name, just using the ID:

$ docker run -i -t 8dbd9e392a96 /bin/bash

Please see Docker run reference for more information.

Html.RenderPartial() syntax with Razor

Html.RenderPartial() is a void method - you can check whether a method is a void method by placing your mouse over the call to RenderPartial in your code and you will see the text (extension) void HtmlHelper.RenderPartial...

Void methods require a semicolon at the end of the calling code.

In the Webforms view engine you would have encased your Html.RenderPartial() call within the bee stings <% %>

like so

<% Html.RenderPartial("Path/to/my/partial/view"); %>

when you are using the Razor view engine the equivalent is

@{Html.RenderPartial("Path/to/my/partial/view");}

alternative to "!is.null()" in R

If it's just a matter of easy reading, you could always define your own function :

is.not.null <- function(x) !is.null(x)

So you can use it all along your program.

is.not.null(3)
is.not.null(NULL)

Alter a MySQL column to be AUTO_INCREMENT

You can apply the atuto_increment constraint to the data column by the following query:

ALTER TABLE customers MODIFY COLUMN customer_id BIGINT NOT NULL AUTO_INCREMENT;

But, if the columns are part of a foreign key constraint you, will most probably receive an error. Therefore, it is advised to turn off foreign_key_checks by using the following query:

SET foreign_key_checks = 0;

Therefore, use the following query instead:

SET foreign_key_checks = 0;
ALTER TABLE customers MODIFY COLUMN customer_id BIGINT NOT NULL AUTO_INCREMENT;
SET foreign_key_checks = 1;

Default value in an asp.net mvc view model

Set this in the constructor:

public class SearchModel
{
    public bool IsMale { get; set; }
    public bool IsFemale { get; set; }

    public SearchModel()
    { 
        IsMale = true;
        IsFemale = true;
    }
}

Then pass it to the view in your GET action:

[HttpGet]
public ActionResult Search()
{
    return new View(new SearchModel());
}

Volley - POST/GET parameters

This helper class manages parameters for GET and POST requests:

import java.io.UnsupportedEncodingException;
import java.util.Iterator;
import java.util.Map;    

import org.json.JSONException;
import org.json.JSONObject;

import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.toolbox.HttpHeaderParser;

public class CustomRequest extends Request<JSONObject> {
    private int mMethod;
    private String mUrl;
    private Map<String, String> mParams;
    private Listener<JSONObject> mListener;

    public CustomRequest(int method, String url, Map<String, String> params,
            Listener<JSONObject> reponseListener, ErrorListener errorListener) {
        super(method, url, errorListener);
        this.mMethod = method;
        this.mUrl = url;
        this.mParams = params;
        this.mListener = reponseListener;
    }

@Override
public String getUrl() {
    if(mMethod == Request.Method.GET) {
        if(mParams != null) {
            StringBuilder stringBuilder = new StringBuilder(mUrl);
            Iterator<Map.Entry<String, String>> iterator = mParams.entrySet().iterator();
            int i = 1;
            while (iterator.hasNext()) {
                Map.Entry<String, String> entry = iterator.next();
                if (i == 1) {
                    stringBuilder.append("?" + entry.getKey() + "=" + entry.getValue());
                } else {
                    stringBuilder.append("&" + entry.getKey() + "=" + entry.getValue());
                }
                iterator.remove(); // avoids a ConcurrentModificationException
                i++;
            }
            mUrl = stringBuilder.toString();
        }
    }
    return mUrl;
}

    @Override
    protected Map<String, String> getParams()
            throws com.android.volley.AuthFailureError {
        return mParams;
    };

    @Override
    protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) {
        try {
            String jsonString = new String(response.data,
                    HttpHeaderParser.parseCharset(response.headers));
            return Response.success(new JSONObject(jsonString),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } catch (JSONException je) {
            return Response.error(new ParseError(je));
        }
    }

    @Override
    protected void deliverResponse(JSONObject response) {
        // TODO Auto-generated method stub
        mListener.onResponse(response);
    }
}

How to use log levels in java

Generally, you don't need all those levels, SEVERE, WARNING, INFO, FINE might be enough. We're using Log4J (not java.util.logging directly) and the following levels (which might differ in name from other logging frameworks):

  • ERROR: Any error/exception that is or might be critical. Our Logger automatically sends an email for each such message on our servers (usage: logger.error("message"); )

  • WARN: Any message that might warn us of potential problems, e.g. when a user tried to log in with wrong credentials - which might indicate an attack if that happens often or in short periods of time (usage: logger.warn("message"); )

  • INFO: Anything that we want to know when looking at the log files, e.g. when a scheduled job started/ended (usage: logger.info("message"); )

  • DEBUG: As the name says, debug messages that we only rarely turn on. (usage: logger.debug("message"); )

The beauty of this is that if you set the log level to WARN, info and debug messages have next to no performance impact. If you need to get additional information from a production system you just can lower the level to INFO or DEBUG for a short period of time (since you'd get much more log entries which make your log files bigger and harder to read). Adjusting log levels etc. can normally be done at runtime (our JBoss instance checks for changes in that config every minute or so).

Android AlertDialog Single Button

Couldn't that just be done by only using a positive button?

AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Look at this dialog!")
       .setCancelable(false)
       .setPositiveButton("OK", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int id) {
                //do things
           }
       });
AlertDialog alert = builder.create();
alert.show();

What is the use of "using namespace std"?
  • using: You are going to use it.
  • namespace: To use what? A namespace.
  • std: The std namespace (where features of the C++ Standard Library, such as string or vector, are declared).

After you write this instruction, if the compiler sees string it will know that you may be referring to std::string, and if it sees vector, it will know that you may be referring to std::vector. (Provided that you have included in your compilation unit the header files where they are defined, of course.)

If you don't write it, when the compiler sees string or vector it will not know what you are refering to. You will need to explicitly tell it std::string or std::vector, and if you don't, you will get a compile error.

Change bootstrap navbar collapse breakpoint without using LESS

Navbars can utilize .navbar-toggler, .navbar-collapse, and .navbar-expand{-sm|-md|-lg|-xl} classes to change when their content collapses behind a button. In combination with other utilities, you can easily choose when to show or hide particular elements.

For navbars that never collapse, add the .navbar-expand class on the navbar. For navbars that always collapse, don’t add any .navbar-expand class.

For example :

<nav class="navbar navbar-expand-lg"></nav>

Mobile menu is showing in large screen.

Reference : https://getbootstrap.com/docs/4.0/components/navbar/

fileReader.readAsBinaryString to upload files

(Following is a late but complete answer)

FileReader methods support

FileReader.readAsBinaryString() is deprecated. Don't use it! It's no longer in the W3C File API working draft:

void abort();
void readAsArrayBuffer(Blob blob);
void readAsText(Blob blob, optional DOMString encoding);
void readAsDataURL(Blob blob);

NB: Note that File is a kind of extended Blob structure.

Mozilla still implements readAsBinaryString() and describes it in MDN FileApi documentation:

void abort();
void readAsArrayBuffer(in Blob blob); Requires Gecko 7.0
void readAsBinaryString(in Blob blob);
void readAsDataURL(in Blob file);
void readAsText(in Blob blob, [optional] in DOMString encoding);

The reason behind readAsBinaryString() deprecation is in my opinion the following: the standard for JavaScript strings are DOMString which only accept UTF-8 characters, NOT random binary data. So don't use readAsBinaryString(), that's not safe and ECMAScript-compliant at all.

We know that JavaScript strings are not supposed to store binary data but Mozilla in some sort can. That's dangerous in my opinion. Blob and typed arrays (ArrayBuffer and the not-yet-implemented but not necessary StringView) were invented for one purpose: allow the use of pure binary data, without UTF-8 strings restrictions.

XMLHttpRequest upload support

XMLHttpRequest.send() has the following invocations options:

void send();
void send(ArrayBuffer data);
void send(Blob data);
void send(Document data);
void send(DOMString? data);
void send(FormData data);

XMLHttpRequest.sendAsBinary() has the following invocations options:

void sendAsBinary(   in DOMString body );

sendAsBinary() is NOT a standard and may not be supported in Chrome.

Solutions

So you have several options:

  1. send() the FileReader.result of FileReader.readAsArrayBuffer ( fileObject ). It is more complicated to manipulate (you'll have to make a separate send() for it) but it's the RECOMMENDED APPROACH.
  2. send() the FileReader.result of FileReader.readAsDataURL( fileObject ). It generates useless overhead and compression latency, requires a decompression step on the server-side BUT it's easy to manipulate as a string in Javascript.
  3. Being non-standard and sendAsBinary() the FileReader.result of FileReader.readAsBinaryString( fileObject )

MDN states that:

The best way to send binary content (like in files upload) is using ArrayBuffers or Blobs in conjuncton with the send() method. However, if you want to send a stringifiable raw data, use the sendAsBinary() method instead, or the StringView (Non native) typed arrays superclass.

Find files and tar them (with spaces)

The best solution seem to be to create a file list and then archive files because you can use other sources and do something else with the list.

For example this allows using the list to calculate size of the files being archived:

#!/bin/sh

backupFileName="backup-big-$(date +"%Y%m%d-%H%M")"
backupRoot="/var/www"
backupOutPath=""

archivePath=$backupOutPath$backupFileName.tar.gz
listOfFilesPath=$backupOutPath$backupFileName.filelist

#
# Make a list of files/directories to archive
#
echo "" > $listOfFilesPath
echo "${backupRoot}/uploads" >> $listOfFilesPath
echo "${backupRoot}/extra/user/data" >> $listOfFilesPath
find "${backupRoot}/drupal_root/sites/" -name "files" -type d >> $listOfFilesPath

#
# Size calculation
#
sizeForProgress=`
cat $listOfFilesPath | while read nextFile;do
    if [ ! -z "$nextFile" ]; then
        du -sb "$nextFile"
    fi
done | awk '{size+=$1} END {print size}'
`

#
# Archive with progress
#
## simple with dump of all files currently archived
#tar -czvf $archivePath -T $listOfFilesPath
## progress bar
sizeForShow=$(($sizeForProgress/1024/1024))
echo -e "\nRunning backup [source files are $sizeForShow MiB]\n"
tar -cPp -T $listOfFilesPath | pv -s $sizeForProgress | gzip > $archivePath

Could not install packages due to an EnvironmentError: [Errno 13]

I was making the same mistakes then I realized that I have created my virtual environment as root user. It was write protected, so please check whether your virtual environment is write protected. make a new venv and try again

How do I enable NuGet Package Restore in Visual Studio?

As already mentioned by Mike, there is no option 'Enable NuGet Package Restore' in VS2015. You'll have to invoke the restore process manually. A nice way - without messing with files and directories - is using the NuGet Package Management Console: Click into the 'Quick start' field (usually in the upper right corner), enter console, open the management console, and enter command:

Update-Package –reinstall

This will re-install all packages of all projects in your solution. To specify a single project, enter:

Update-Package –reinstall -ProjectName MyProject

Of course this is only necessary when the Restore button - sometimes offered by VS2015 - is not available. More useful update commands are listed and explained here: https://docs.microsoft.com/en-us/nuget/consume-packages/reinstalling-and-updating-packages

ruby LoadError: cannot load such file

The problem shall have solved if you specify your path.

e.g.

"require 'st.rb'" --> "require './st.rb'"

See if your problem get solved or not.

Can't pickle <type 'instancemethod'> when using multiprocessing Pool.map()

A potentially trivial solution to this is to switch to using multiprocessing.dummy. This is a thread based implementation of the multiprocessing interface that doesn't seem to have this problem in Python 2.7. I don't have a lot of experience here, but this quick import change allowed me to call apply_async on a class method.

A few good resources on multiprocessing.dummy:

https://docs.python.org/2/library/multiprocessing.html#module-multiprocessing.dummy

http://chriskiehl.com/article/parallelism-in-one-line/

What is the use of verbose in Keras while validating the model?

By default verbose = 1,

verbose = 1, which includes both progress bar and one line per epoch

verbose = 0, means silent

verbose = 2, one line per epoch i.e. epoch no./total no. of epochs

How to read text file in JavaScript

(fiddle: https://jsfiddle.net/ya3ya6/7hfkdnrg/2/ )

  1. Usage

Html:

<textarea id='tbMain' ></textarea>
<a id='btnOpen' href='#' >Open</a>

Js:

document.getElementById('btnOpen').onclick = function(){
    openFile(function(txt){
        document.getElementById('tbMain').value = txt; 
    });
}
  1. Js Helper functions
function openFile(callBack){
  var element = document.createElement('input');
  element.setAttribute('type', "file");
  element.setAttribute('id', "btnOpenFile");
  element.onchange = function(){
      readText(this,callBack);
      document.body.removeChild(this);
      }

  element.style.display = 'none';
  document.body.appendChild(element);

  element.click();
}

function readText(filePath,callBack) {
    var reader;
    if (window.File && window.FileReader && window.FileList && window.Blob) {
        reader = new FileReader();
    } else {
        alert('The File APIs are not fully supported by your browser. Fallback required.');
        return false;
    }
    var output = ""; //placeholder for text output
    if(filePath.files && filePath.files[0]) {           
        reader.onload = function (e) {
            output = e.target.result;
            callBack(output);
        };//end onload()
        reader.readAsText(filePath.files[0]);
    }//end if html5 filelist support
    else { //this is where you could fallback to Java Applet, Flash or similar
        return false;
    }       
    return true;
}

How to identify object types in java

You forgot the .class:

if (value.getClass() == Integer.class) {
    System.out.println("This is an Integer");
} 
else if (value.getClass() == String.class) {
    System.out.println("This is a String");
}
else if (value.getClass() == Float.class) {
    System.out.println("This is a Float");
}

Note that this kind of code is usually the sign of a poor OO design.

Also note that comparing the class of an object with a class and using instanceof is not the same thing. For example:

"foo".getClass() == Object.class

is false, whereas

"foo" instanceof Object

is true.

Whether one or the other must be used depends on your requirements.

Firebase Permission Denied

I was facing similar issue and found out that this error was due to incorrect rules set for read/write operations for real time database. By default google firebase nowadays loads cloud store not real time database. We need to switch to real time and apply the correct rules.

enter image description here

As we can see it says cloud Firestore not real time database, once switched to correct database apply below rules:

{
   "rules": {
       ".read": true,
       ".write": true
     }
 }

Interop type cannot be embedded

I ran into this issue when pulling down a TFS project to my local machine. Allegedly, it was working fine on the guy's machine who wrote it. I simply changed this...

WshShellClass shellClass = new WshShellClass();

To this...

WshShell shellClass = new WshShell();

Now, it is working like a champ!

Eclipse Indigo - Cannot install Android ADT Plugin

Go to Help->Install Software. Add the following link http://dl-ssl.google.com/android/eclipse/ .

Then press next and accept the license, it installs some of the software required then you will be gud to go.

After the eclipse restarts it prompts you to download the android sdk required or give the path of android sdk if already it is downloaded.

This works all the time what ever may be the version.

How to use systemctl in Ubuntu 14.04

I ran across this while on a hunt for answers myself after attempting to follow a guide using pm2. The goal is to automatically start a node.js application on a server. Some guides call out using pm2 startup systemd, which is the path that leads to the question of using systemctl on Ubuntu 14.04. Instead, use pm2 startup ubuntu.

Source: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-node-js-application-for-production-on-ubuntu-14-04

Changing an AIX password via script?

In addition to the other suggestions, you can also achieve this using a HEREDOC.

In your immediate case, this might look like:

$ /usr/bin/passwd root <<EOF
test
test
EOF

Declaring an enum within a class

Nowadays - using C++11 - you can use enum class for this:

enum class Color { RED, BLUE, WHITE };

AFAII this does exactly what you want.

Whoops, looks like something went wrong. Laravel 5.0

In Laravel 5.5, I had the same issue

.env

was added to .gitignore.

So Either remove ".env" it from .gitignore file.

or add it forcefully 

git add .env -f

And Deploy it. It will work.

If above does not help. Try generating the Key Again

php artisan key:generate

Change the location of an object programmatically

If somehow balancePanel won't work, you could use this:

this.Location = new Point(127, 283);

or

anotherObject.Location = new Point(127, 283);

How to call Android contacts list?

 
        Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
        while (phones.moveToNext())
        {
        String Name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)
        String Number=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

        }

Removing a model in rails (reverse of "rails g model Title...")

Try this

rails destroy model Rating

It will remove model, migration, tests and fixtures

Command-line Tool to find Java Heap Size and Memory Used (Linux)?

Using top command is the simplest way to check memory usage of the program. RES column shows the real physical memory that is occupied by a process.

For my case, I had a 10g file read in java and each time I got outOfMemory exception. This happened when the value in the RES column reached to the value set in -Xmx option. Then by increasing the memory using -Xmx option everything went fine.

wordpress contactform7 textarea cols and rows change in smaller screens

In the documentaion http://contactform7.com/text-fields/#textarea

[textarea* message id:contact-message 10x2 placeholder "Your Message"]

The above will generate a textarea with cols="10" and rows="2"

<textarea name="message" cols="10" rows="2" class="wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required" id="contact-message" aria-required="true" aria-invalid="false" placeholder="Your Message"></textarea>

Passing capturing lambda as function pointer

Shafik Yaghmour's answer correctly explains why the lambda cannot be passed as a function pointer if it has a capture. I'd like to show two simple fixes for the problem.

  1. Use std::function instead of raw function pointers.

    This is a very clean solution. Note however that it includes some additional overhead for the type erasure (probably a virtual function call).

    #include <functional>
#include <utility>

struct Decide
{
  using DecisionFn = std::function<bool()>;
  Decide(DecisionFn dec) : dec_ {std::move(dec)} {}
  DecisionFn dec_;
};

int
main()
{
  int x = 5;
  Decide greaterThanThree { [x](){ return x > 3; } };
}

  2. Use a lambda expression that doesn't capture anything.

    Since your predicate is really just a boolean constant, the following would quickly work around the current issue. See this answer for a good explanation why and how this is working.

    // Your 'Decide' class as in your post.

int
main()
{
  int x = 5;
  Decide greaterThanThree {
    (x > 3) ? [](){ return true; } : [](){ return false; }
  };
}

Operand type clash: uniqueidentifier is incompatible with int

Sounds to me like at least one of those tables has defined UserID as a uniqueidentifier, not an int. Did you check the data in each table? What does SELECT TOP 1 UserID FROM each table yield? An int or a GUID?

EDIT

I think you have built a procedure based on all tables that contain a column named UserID. I think you should not have included the aspnet_Membership table in your script, since it's not really one of "your" tables.

If you meant to design your tables around the aspnet_Membership database, then why are the rest of the columns int when that table clearly uses a uniqueidentifier for the UserID column?

ping response "Request timed out." vs "Destination Host unreachable"

Destination Host Unreachable

This message indicates one of two problems: either the local system has no route to the desired destination, or a remote router reports that it has no route to the destination.

If the message is simply "Destination Host Unreachable," then there is no route from the local system, and the packets to be sent were never put on the wire.

If the message is "Reply From < IP address >: Destination Host Unreachable," then the routing problem occurred at a remote router, whose address is indicated by the "< IP address >" field.

Request Timed Out

This message indicates that no Echo Reply messages were received within the default time of 1 second. This can be due to many different causes; the most common include network congestion, failure of the ARP request, packet filtering, routing error, or a silent discard.

For more info Refer: http://technet.microsoft.com/en-us/library/cc940095.aspx

Unit testing private methods in C#

Yes, don't Test private methods.... The idea of a unit test is to test the unit by its public 'API'.

If you are finding you need to test a lot of private behavior, most likely you have a new 'class' hiding within the class you are trying to test, extract it and test it by its public interface.

One piece of advice / Thinking tool..... There is an idea that no method should ever be private. Meaning all methods should live on a public interface of an object.... if you feel you need to make it private, it most likely lives on another object.

This piece of advice doesn't quite work out in practice, but its mostly good advice, and often it will push people to decompose their objects into smaller objects.

ORA-06550: line 1, column 7 (PL/SQL: Statement ignored) Error

If the value stored in PropertyLoader.RET_SECONDARY_V_ARRAY is not "V_ARRAY", then you are using different types; even if they are declared identically (e.g. both are table of number) this will not work.

You're hitting this data type compatibility restriction:

You can assign a collection to a collection variable only if they have the same data type. Having the same element type is not enough.

You're trying to call the procedure with a parameter that is a different type to the one it's expecting, which is what the error message is telling you.

Difference between webdriver.Dispose(), .Close() and .Quit()

Close() - It is used to close the browser or page currently which is having the focus.

Quit() - It is used to shut down the web driver instance or destroy the web driver instance(Close all the windows).

Dispose() - I am not aware of this method.

How to select data of a table from another database in SQL Server?

Using Microsoft SQL Server Management Studio you can create Linked Server. First make connection to current (local) server, then go to Server Objects > Linked Servers > context menu > New Linked Server. In window New Linked Server you have to specify desired server name for remote server, real server name or IP address (Data Source) and credentials (Security page).

And further you can select data from linked server:

select * from [linked_server_name].[database].[schema].[table]

How do I extract text that lies between parentheses (round brackets)?

Use this function:

public string GetSubstringByString(string a, string b, string c)
    {
        return c.Substring((c.IndexOf(a) + a.Length), (c.IndexOf(b) - c.IndexOf(a) - a.Length));
    }

and here is the usage:

GetSubstringByString("(", ")", "User name (sales)")

and the output would be:

sales

How to import set of icons into Android Studio project

Since Android Studio 3.4, there is a new tool called Resource manager. It supports importing many drawables at once (vectors, pngs, ...) . Follow the official documentation.

How to open, read, and write from serial port in C?

For demo code that conforms to POSIX standard as described in Setting Terminal Modes Properly and Serial Programming Guide for POSIX Operating Systems, the following is offered.
This code should execute correctly using Linux on x86 as well as ARM (or even CRIS) processors.
It's essentially derived from the other answer, but inaccurate and misleading comments have been corrected.

This demo program opens and initializes a serial terminal at 115200 baud for non-canonical mode that is as portable as possible.
The program transmits a hardcoded text string to the other terminal, and delays while the output is performed.
The program then enters an infinite loop to receive and display data from the serial terminal.
By default the received data is displayed as hexadecimal byte values.

To make the program treat the received data as ASCII codes, compile the program with the symbol DISPLAY_STRING, e.g.

 cc -DDISPLAY_STRING demo.c

If the received data is ASCII text (rather than binary data) and you want to read it as lines terminated by the newline character, then see this answer for a sample program.

#define TERMINAL    "/dev/ttyUSB0"

#include <errno.h>
#include <fcntl.h> 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>

int set_interface_attribs(int fd, int speed)
{
    struct termios tty;

    if (tcgetattr(fd, &tty) < 0) {
        printf("Error from tcgetattr: %s\n", strerror(errno));
        return -1;
    }

    cfsetospeed(&tty, (speed_t)speed);
    cfsetispeed(&tty, (speed_t)speed);

    tty.c_cflag |= (CLOCAL | CREAD);    /* ignore modem controls */
    tty.c_cflag &= ~CSIZE;
    tty.c_cflag |= CS8;         /* 8-bit characters */
    tty.c_cflag &= ~PARENB;     /* no parity bit */
    tty.c_cflag &= ~CSTOPB;     /* only need 1 stop bit */
    tty.c_cflag &= ~CRTSCTS;    /* no hardware flowcontrol */

    /* setup for non-canonical mode */
    tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
    tty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
    tty.c_oflag &= ~OPOST;

    /* fetch bytes as they become available */
    tty.c_cc[VMIN] = 1;
    tty.c_cc[VTIME] = 1;

    if (tcsetattr(fd, TCSANOW, &tty) != 0) {
        printf("Error from tcsetattr: %s\n", strerror(errno));
        return -1;
    }
    return 0;
}

void set_mincount(int fd, int mcount)
{
    struct termios tty;

    if (tcgetattr(fd, &tty) < 0) {
        printf("Error tcgetattr: %s\n", strerror(errno));
        return;
    }

    tty.c_cc[VMIN] = mcount ? 1 : 0;
    tty.c_cc[VTIME] = 5;        /* half second timer */

    if (tcsetattr(fd, TCSANOW, &tty) < 0)
        printf("Error tcsetattr: %s\n", strerror(errno));
}


int main()
{
    char *portname = TERMINAL;
    int fd;
    int wlen;
    char *xstr = "Hello!\n";
    int xlen = strlen(xstr);

    fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC);
    if (fd < 0) {
        printf("Error opening %s: %s\n", portname, strerror(errno));
        return -1;
    }
    /*baudrate 115200, 8 bits, no parity, 1 stop bit */
    set_interface_attribs(fd, B115200);
    //set_mincount(fd, 0);                /* set to pure timed read */

    /* simple output */
    wlen = write(fd, xstr, xlen);
    if (wlen != xlen) {
        printf("Error from write: %d, %d\n", wlen, errno);
    }
    tcdrain(fd);    /* delay for output */


    /* simple noncanonical input */
    do {
        unsigned char buf[80];
        int rdlen;

        rdlen = read(fd, buf, sizeof(buf) - 1);
        if (rdlen > 0) {
#ifdef DISPLAY_STRING
            buf[rdlen] = 0;
            printf("Read %d: \"%s\"\n", rdlen, buf);
#else /* display hex */
            unsigned char   *p;
            printf("Read %d:", rdlen);
            for (p = buf; rdlen-- > 0; p++)
                printf(" 0x%x", *p);
            printf("\n");
#endif
        } else if (rdlen < 0) {
            printf("Error from read: %d: %s\n", rdlen, strerror(errno));
        } else {  /* rdlen == 0 */
            printf("Timeout from read\n");
        }               
        /* repeat read to get full message */
    } while (1);
}

For an example of an efficient program that provides buffering of received data yet allows byte-by-byte handing of the input, then see this answer.

How do I see if Wi-Fi is connected on Android?

Similar to @Jason Knight answer, but in Kotlin way:

val connManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)

if (mWifi.isConnected) {
     // Do whatever
}

Grouping into interval of 5 minutes within a time range

For postgres, I found it easier and more accurate to use the

date_trunc

function, like:

select name, sum(count), date_trunc('minute',timestamp) as timestamp
FROM table
WHERE xxx
GROUP BY name,date_trunc('minute',timestamp)
ORDER BY timestamp

You can provide various resolutions like 'minute','hour','day' etc... to date_trunc.

How prevent CPU usage 100% because of worker process in iis

If it is not necessary turn off 'Enable 32-bit Applications' from your respective application pool of your website.

This worked for me on my local machine

Android- Error:Execution failed for task ':app:transformClassesWithDexForRelease'

The best way comes from James Riordan's answer from this thread

This can be fixed by updating to Gradle 5.5

The easiest way to do this is to update the wrapper in use:

  • Open gradle/gradle-wrapper.properties

  • Find the line that looks like

distributionUrl=https\://services.gradle.org/distributions/gradle-5.X.X-all.zip
  • Change the version to 5.5-all.zip

Then try running the build again.

WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT

Here is some code I wrote to help us identify and correct untrusted CONSTRAINTs in a DATABASE. It generates the code to fix each issue.

    ;WITH Untrusted (ConstraintType, ConstraintName, ConstraintTable, ParentTable, IsDisabled, IsNotForReplication, IsNotTrusted, RowIndex) AS
(
    SELECT 
        'Untrusted FOREIGN KEY' AS FKType
        , fk.name AS FKName
        , OBJECT_NAME( fk.parent_object_id) AS FKTableName
        , OBJECT_NAME( fk.referenced_object_id) AS PKTableName 
        , fk.is_disabled
        , fk.is_not_for_replication
        , fk.is_not_trusted
        , ROW_NUMBER() OVER (ORDER BY OBJECT_NAME( fk.parent_object_id), OBJECT_NAME( fk.referenced_object_id), fk.name) AS RowIndex
    FROM 
        sys.foreign_keys fk 
    WHERE 
        is_ms_shipped = 0 
        AND fk.is_not_trusted = 1       

    UNION ALL

    SELECT 
        'Untrusted CHECK' AS KType
        , cc.name AS CKName
        , OBJECT_NAME( cc.parent_object_id) AS CKTableName
        , NULL AS ParentTable
        , cc.is_disabled
        , cc.is_not_for_replication
        , cc.is_not_trusted
        , ROW_NUMBER() OVER (ORDER BY OBJECT_NAME( cc.parent_object_id), cc.name) AS RowIndex
    FROM 
        sys.check_constraints cc 
    WHERE 
        cc.is_ms_shipped = 0
        AND cc.is_not_trusted = 1

)
SELECT 
    u.ConstraintType
    , u.ConstraintName
    , u.ConstraintTable
    , u.ParentTable
    , u.IsDisabled
    , u.IsNotForReplication
    , u.IsNotTrusted
    , u.RowIndex
    , 'RAISERROR( ''Now CHECKing {%i of %i)--> %s ON TABLE %s'', 0, 1' 
        + ', ' + CAST( u.RowIndex AS VARCHAR(64))
        + ', ' + CAST( x.CommandCount AS VARCHAR(64))
        + ', ' + '''' + QUOTENAME( u.ConstraintName) + '''' 
        + ', ' + '''' + QUOTENAME( u.ConstraintTable) + '''' 
        + ') WITH NOWAIT;'
    + 'ALTER TABLE ' + QUOTENAME( u.ConstraintTable) + ' WITH CHECK CHECK CONSTRAINT ' + QUOTENAME( u.ConstraintName) + ';' AS FIX_SQL
FROM Untrusted u
CROSS APPLY (SELECT COUNT(*) AS CommandCount FROM Untrusted WHERE ConstraintType = u.ConstraintType) x
ORDER BY ConstraintType, ConstraintTable, ParentTable;

Error: JavaFX runtime components are missing, and are required to run this application with JDK 11

This worked for me:

File >> Project Structure >> Modules >> Dependency >> + (on left-side of window)

clicking the "+" sign will let you designate the directory where you have unpacked JavaFX's "lib" folder.

Scope is Compile (which is the default.) You can then edit this to call it JavaFX by double-clicking on the line.

then in:

Run >> Edit Configurations

Add this line to VM Options:

--module-path /path/to/JavaFX/lib --add-modules=javafx.controls

(oh and don't forget to set the SDK)

How to convert JSON data into a Python object

There are multiple viable answers already, but there are some minor libraries made by individuals that can do the trick for most users.

An example would be json2object. Given a defined class, it deserialises json data to your custom model, including custom attributes and child objects.

Its use is very simple. An example from the library wiki:

_x000D_
_x000D_ 
from json2object import jsontoobject as jo

class Student:
    def __init__(self):
        self.firstName = None
        self.lastName = None
        self.courses = [Course('')]

class Course:
    def __init__(self, name):
        self.name = name

data = '''{
"firstName": "James",
"lastName": "Bond",
"courses": [{
    "name": "Fighting"},
    {
    "name": "Shooting"}
    ]
}
'''

model = Student()
result = jo.deserialize(data, model)
print(result.courses[0].name)
_x000D_
_x000D_
_x000D_

How to change the size of the font of a JLabel to take the maximum size

Source Code for Label - How to change Color and Font (in Netbeans)

jLabel1.setFont(new Font("Serif", Font.BOLD, 12));


jLabel1.setForeground(Color.GREEN);

equivalent of rm and mv in windows .cmd

move in windows is equivalent of mv command in Linux

del in windows is equivalent of rm command in Linux

How to query for today's date and 7 days before data?

Query in Parado's answer is correct, if you want to use MySql too instead GETDATE() you must use (because you've tagged this question with Sql server and Mysql):

select * from tab
where DateCol between adddate(now(),-7) and now()

Subversion ignoring "--password" and "--username" options

Best I can give you is a "works for me" on SVN 1.5. You may try adding --no-auth-cache to your svn update to see if that lets you override more easily.

If you want to permanently switch from user2 to user1, head into ~/.subversion/auth/ on *nix and delete the auth cache file for domain.com (most likely in ~/.subversion/auth/svn.simple/ -- just read through them and you'll find the one you want to drop). While it is possible to update the current auth cache, you have to make sure to update the length tokens as well. Simpler just to get prompted again next time you update.

Read .doc file with python

You can use python-docx2txt library to read text from Microsoft Word documents. It is an improvement over python-docx library as it can, in addition, extract text from links, headers and footers. It can even extract images.

You can install it by running: pip install docx2txt.

Let's download and read the first Microsoft document on here:

import docx2txt
my_text = docx2txt.process("test.docx")
print(my_text)

Here is a screenshot of the Terminal output the above code:

enter image description here

EDIT:

This does NOT work for .doc files. The only reason I am keep this answer is that it seems there are people who find it useful for .docx files.

How to make Sonar ignore some classes for codeCoverage metric?

I am able to achieve the necessary code coverage exclusions by updating jacoco-maven-plugin configuration in pom.xml

<plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>0.8.6</version>
                <executions>
                    <execution>
                        <id>pre-test</id>
                        <goals>
                            <goal>prepare-agent</goal>
                        </goals>
                        <configuration>
                            <propertyName>jacocoArgLine</propertyName>
                            <destFile>${project.test.result.directory}/jacoco/jacoco.exec</destFile>
                        </configuration>
                    </execution>
                    <execution>
                        <id>post-test</id>
                        <phase>test</phase>
                        <goals>
                            <goal>report</goal>
                        </goals>
                        <configuration>
                            <dataFile>${project.test.result.directory}/jacoco/jacoco.exec</dataFile>
                            <outputDirectory>${project.test.result.directory}/jacoco</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
                <configuration>
                    <excludes>
                        <exclude>**/GlobalExceptionHandler*.*</exclude>
                        <exclude>**/ErrorResponse*.*</exclude>
                    </excludes>
                </configuration>
            </plugin>

this configuration excludes the GlobalExceptionHandler.java and ErrorResponse.java in the jacoco coverage.

And the following two lines does the same for sonar coverage .

    <sonar.exclusions> **/*GlobalExceptionHandler*.*, **/*ErrorResponse*.</sonar.exclusions>
        <sonar.coverage.exclusions> **/*GlobalExceptionHandler*.*, **/*ErrorResponse*.* </sonar.coverage.exclusions>

android TextView: setting the background color dynamically doesn't work

 
tv.setTextColor(getResources().getColor(R.color.solid_red));

Dealing with "java.lang.OutOfMemoryError: PermGen space" error

Use the command line parameter -XX:MaxPermSize=128m for a Sun JVM (obviously substituting 128 for whatever size you need).

How to run stored procedures in Entity Framework Core?

I used StoredProcedureEFCore nuget package by https://github.com/verdie-g/StoredProcedureEFCore,EnterpriseLibrary.Data.NetCore,EFCor.SqlServer,EFCore.Tools

I tried DbFirst approach with {Repository pattern}.. i think so

startup.cs

ConfigureServices(IServiceCollection services){
    services.AddDbContext<AppDbContext>(opt => opt
                   .UseSqlServer(Configuration.GetConnectionString("SampleConnectionString")));
    services.AddScoped<ISomeDAL, SomeDAL>();

}
            
    public  class AppDbContext : DbContext{
public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
    {}
}

ISomeDAl Interface has {GetPropertiesResponse GetAllPropertiesByCity(int CityId);}

public class SomeDAL : ISomeDAL
{
     private readonly AppDbContext context;

     public SomeDAL(AppDbContext context)
         {
             this.context = context;
         }
     public  GetPropertiesResponse GetAllPropertiesByCity(int CityId)
     {
         //Create Required Objects for response 
         //wont support ref Objects through params
         context.LoadStoredProc(SQL_STATEMENT)
            .AddParam("CityID", CityId).Exec( r =>
             {
                  while (r.Read())
                  {

                       ORMapping<GenericRespStatus> orm = new  ORMapping<GenericRespStatus>();
                       orm.AssignObject(r, _Status);
                  }

                  if (r.NextResult())
                  {

                       while (r.Read())
                       {
                           Property = new Property();
                           ORMapping<Property> orm = new ORMapping<Property>();
                           orm.AssignObject(r, Property);
                           _propertyDetailsResult.Add(Property);
                       }
                  }    
           });
    return new GetPropertiesResponse{Status=_Status,PropertyDetails=_propertyDetailsResult}; 
    }
}

public class GetPropertiesResponse
{
     public GenericRespStatus Status;
     public List<Property> PropertyDetails;
     public GetPropertiesResponse()
         {
             PropertyDetails = new List<Property>();
         }
}
public class GenericRespStatus
{
     public int ResCode { get; set; }
     public string ResMsg { get; set; }
}
internal class ORMapping<T>
{
    public void AssignObject(IDataReader record, T myClass)
    {
        PropertyInfo[] propertyInfos = typeof(T).GetProperties();
        for (int i = 0; i < record.FieldCount; i++)
        {
            if (propertyInfos.Any(obj => obj.Name == record.GetName(i))) //&& record.GetValue(i) != DBNull.Value
            {
                propertyInfos.Single(obj => obj.Name == record.GetName(i)).SetValue(myClass, Convert.ChangeType(record.GetValue(i), record.GetFieldType(i)));
            }
        }
    }
}

Convert R vector to string vector of 1 element

Use the collapse argument to paste:

paste(a,collapse=" ")
[1] "aa bb cc"

Why use def main()?

Everyone else has already answered it, but I think I still have something else to add.

Reasons to have that if statement calling main() (in no particular order):

  • Other languages (like C and Java) have a main() function that is called when the program is executed. Using this if, we can make Python behave like them, which feels more familiar for many people.

  • Code will be cleaner, easier to read, and better organized. (yeah, I know this is subjective)

  • It will be possible to import that python code as a module without nasty side-effects.

  • This means it will be possible to run tests against that code.

  • This means we can import that code into an interactive python shell and test/debug/run it.

  • Variables inside def main are local, while those outside it are global. This may introduce a few bugs and unexpected behaviors.

But, you are not required to write a main() function and call it inside an if statement.

I myself usually start writing small throwaway scripts without any kind of function. If the script grows big enough, or if I feel putting all that code inside a function will benefit me, then I refactor the code and do it. This also happens when I write bash scripts.

Even if you put code inside the main function, you are not required to write it exactly like that. A neat variation could be:

import sys

def main(argv):
    # My code here
    pass

if __name__ == "__main__":
    main(sys.argv)

This means you can call main() from other scripts (or interactive shell) passing custom parameters. This might be useful in unit tests, or when batch-processing. But remember that the code above will require parsing of argv, thus maybe it would be better to use a different call that pass parameters already parsed.

In an object-oriented application I've written, the code looked like this:

class MyApplication(something):
    # My code here

if __name__ == "__main__":
    app = MyApplication()
    app.run()

So, feel free to write the code that better suits you. :)

Uncaught TypeError: Cannot read property 'msie' of undefined

$.browser was removed from jQuery starting with version 1.9. It is now available as a plugin. It's generally recommended to avoid browser detection, which is why it was removed.

nodeJs callbacks simple example

This blog-post has a good write-up:

https://codeburst.io/javascript-what-the-heck-is-a-callback-aba4da2deced

_x000D_
_x000D_ 
function doHomework(subject, callback) {_x000D_
  alert(`Starting my ${subject} homework.`);_x000D_
  callback();_x000D_
}_x000D_
_x000D_
function alertFinished(){_x000D_
  alert('Finished my homework');_x000D_
}_x000D_
_x000D_
doHomework('math', alertFinished);
_x000D_
_x000D_
_x000D_

What are the aspect ratios for all Android phone and tablet devices?

the best way to calculate the equation is simplified. That is, find the maximum divisor between two numbers and divide:

ex.

1920:1080 maximum common divisor 120 = 16:9
1024:768  maximum common divisor 256 = 4:3
1280:768  maximum common divisor 256 = 5:3

may happen also some approaches

ReferenceError: fetch is not defined

Best one is Axios library for fetching. use npm i --save axios for installng and use it like fetch, just write axios instead of fetch and then get response in then().

How to cast ArrayList<> from List<>

Just try this :

ArrayList<SomeClass> arrayList;

 public SomeConstructor(List<SomeClass> listData) {
        arrayList.addAll(listData);
}

python 2.7: cannot pip on windows "bash: pip: command not found"

As long as pip lives within the scripts folder you can run

python -m pip ....

This will tell python to get pip from inside the scripts folder. This is also a good way to have both python2.7 and pyhton3.5 on you computer and have them in different locations. I currently have both python2 and pyhton3 installed on windows. When I type python it defaults to python2. But if I type python3 I can use python3. (I also had to change the python.exe file for python3 to "python3.exe")If I need to install flask for python 2 I can run

python -m pip install flask

and it will be installed in the pyhton2 folder, but if I need flask for python 3 I run:

python3 -m pip install flask

and I now have it in the python3 folder

How to remove the default link color of the html hyperlink 'a' tag?

 
.cancela,.cancela:link,.cancela:visited,.cancela:hover,.cancela:focus,.cancela:active{
    color: inherit;
    text-decoration: none;
}

I felt it necessary to post the above class definition, many of the answers on SO miss some of the states

How to specify more spaces for the delimiter using cut?

Personally, I tend to use awk for jobs like this. For example:

ps axu| grep jboss | grep -v grep | awk '{print $5}'

How do I dispatch_sync, dispatch_async, dispatch_after, etc in Swift 3, Swift 4, and beyond?

Since the beginning, Swift has provided some facilities for making ObjC and C more Swifty, adding more with each version. Now, in Swift 3, the new "import as member" feature lets frameworks with certain styles of C API -- where you have a data type that works sort of like a class, and a bunch of global functions to work with it -- act more like Swift-native APIs. The data types import as Swift classes, their related global functions import as methods and properties on those classes, and some related things like sets of constants can become subtypes where appropriate.

In Xcode 8 / Swift 3 beta, Apple has applied this feature (along with a few others) to make the Dispatch framework much more Swifty. (And Core Graphics, too.) If you've been following the Swift open-source efforts, this isn't news, but now is the first time it's part of Xcode.

Your first step on moving any project to Swift 3 should be to open it in Xcode 8 and choose Edit > Convert > To Current Swift Syntax... in the menu. This will apply (with your review and approval) all of the changes at once needed for all the renamed APIs and other changes. (Often, a line of code is affected by more than one of these changes at once, so responding to error fix-its individually might not handle everything right.)

The result is that the common pattern for bouncing work to the background and back now looks like this:

// Move to a background thread to do some long running work
DispatchQueue.global(qos: .userInitiated).async {
    let image = self.loadOrGenerateAnImage()
    // Bounce back to the main thread to update the UI
    DispatchQueue.main.async {
        self.imageView.image = image
    }
}

Note we're using .userInitiated instead of one of the old DISPATCH_QUEUE_PRIORITY constants. Quality of Service (QoS) specifiers were introduced in OS X 10.10 / iOS 8.0, providing a clearer way for the system to prioritize work and deprecating the old priority specifiers. See Apple's docs on background work and energy efficiency for details.

By the way, if you're keeping your own queues to organize work, the way to get one now looks like this (notice that DispatchQueueAttributes is an OptionSet, so you use collection-style literals to combine options):

class Foo { 
    let queue = DispatchQueue(label: "com.example.my-serial-queue",
                           attributes: [.serial, .qosUtility])
    func doStuff() {
        queue.async {
            print("Hello World")
        }
    }
}

Using dispatch_after to do work later? That's a method on queues, too, and it takes a DispatchTime, which has operators for various numeric types so you can just add whole or fractional seconds:

DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { // in half a second...
    print("Are we there yet?")
}

You can find your way around the new Dispatch API by opening its interface in Xcode 8 -- use Open Quickly to find the Dispatch module, or put a symbol (like DispatchQueue) in your Swift project/playground and command-click it, then brouse around the module from there. (You can find the Swift Dispatch API in Apple's spiffy new API Reference website and in-Xcode doc viewer, but it looks like the doc content from the C version hasn't moved into it just yet.)

See the Migration Guide for more tips.

How to use color picker (eye dropper)?

To open the Eye Dropper simply:

  1. Open DevTools F12
  2. Go to Elements tab
  3. Under Styles side bar click on any color preview box

enter image description here

Its main functionality is to inspect pixel color values by clicking them though with its new features you can also see your page's existing colors palette or material design palette by clicking on the two arrows icon at the bottom. It can get quite handy when designing your page.

Retrieve last 100 lines logs

 
len=`cat filename | wc -l`
len=$(( $len + 1 ))
l=$(( $len - 99 ))
sed -n "${l},${len}p" filename

first line takes the length (Total lines) of file then +1 in the total lines after that we have to fatch 100 records so, -99 from total length then just put the variables in the sed command to fetch the last 100 lines from file

I hope this will help you.

How to load/reference a file as a File instance from the classpath

This also works, and doesn't require a /path/to/file URI conversion. If the file is on the classpath, this will find it.

File currFile = new File(getClass().getClassLoader().getResource("the_file.txt").getFile());

Spark - Error "A master URL must be set in your configuration" when submitting an app

How does spark context in your application pick the value for spark master?

  • You either provide it explcitly withing SparkConf while creating SC.
  • Or it picks from the System.getProperties (where SparkSubmit earlier put it after reading your --master argument).

Now, SparkSubmit runs on the driver -- which in your case is the machine from where you're executing the spark-submit script. And this is probably working as expected for you too.

However, from the information you've posted it looks like you are creating a spark context in the code that is sent to the executor -- and given that there is no spark.master system property available there, it fails. (And you shouldn't really be doing so, if this is the case.)

Can you please post the GroupEvolutionES code (specifically where you're creating SparkContext(s)).

Example of SOAP request authenticated with WS-UsernameToken

The Hash Password Support and Token Assertion Parameters in Metro 1.2 explains very nicely what a UsernameToken with Digest Password looks like:

Digest Password Support

The WSS 1.1 Username Token Profile allows digest passwords to be sent in a wsse:UsernameToken of a SOAP message. Two more optional elements are included in the wsse:UsernameToken in this case: wsse:Nonce and wsse:Created. A nonce is a random value that the sender creates to include in each UsernameToken that it sends. A creation time is added to combine nonces to a "freshness" time period. The Password Digest in this case is calculated as:

Password_Digest = Base64 ( SHA-1 ( nonce + created + password ) )

This is how a UsernameToken with Digest Password looks like:

<wsse:UsernameToken wsu:Id="uuid_faf0159a-6b13-4139-a6da-cb7b4100c10c">
   <wsse:Username>Alice</wsse:Username>
   <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">6S3P2EWNP3lQf+9VC3emNoT57oQ=</wsse:Password>
   <wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">YF6j8V/CAqi+1nRsGLRbuZhi</wsse:Nonce>
   <wsu:Created>2008-04-28T10:02:11Z</wsu:Created>
</wsse:UsernameToken>

Curl Command to Repeat URL Request

If you want to add an interval before executing the cron the next time you can add a sleep

for i in {1..100}; do echo $i && curl "http://URL" >> /tmp/output.log && sleep 120; done

Understanding Python super() with __init__() methods

The main difference is that ChildA.__init__ will unconditionally call Base.__init__ whereas ChildB.__init__ will call __init__ in whatever class happens to be ChildB ancestor in self's line of ancestors (which may differ from what you expect).

If you add a ClassC that uses multiple inheritance:

class Mixin(Base):
  def __init__(self):
    print "Mixin stuff"
    super(Mixin, self).__init__()

class ChildC(ChildB, Mixin):  # Mixin is now between ChildB and Base
  pass

ChildC()
help(ChildC) # shows that the Method Resolution Order is ChildC->ChildB->Mixin->Base

then Base is no longer the parent of ChildB for ChildC instances. Now super(ChildB, self) will point to Mixin if self is a ChildC instance.

You have inserted Mixin in between ChildB and Base. And you can take advantage of it with super()

So if you are designed your classes so that they can be used in a Cooperative Multiple Inheritance scenario, you use super because you don't really know who is going to be the ancestor at runtime.

The super considered super post and pycon 2015 accompanying video explain this pretty well.

How do I set the default page of my application in IIS7?

Just go to web.config file and add following

<system.webServer>
    <defaultDocument>
      <files>
        <clear />
        <add value="Path of your Page" />
      </files>
    </defaultDocument>
</system.webServer>

Calling a function on bootstrap modal open

You can use belw code for show and hide bootstrap model.

$('#my-model').on('shown.bs.modal', function (e) {
  // do something here...
})

and if you want to hide model then you can use below code.

$('#my-model').on('hidden.bs.modal', function() {
    // do something here...
});

I hope this answer is useful for your project.

php - How do I fix this illegal offset type error

check $xml->entry[$i] exists and is an object before trying to get a property of it

 if(isset($xml->entry[$i]) && is_object($xml->entry[$i])){
   $source = $xml->entry[$i]->source;          
   $s[$source] += 1;
 }

or $source might not be a legal array offset but an array, object, resource or possibly null

Add carriage return to a string

Environment.NewLine should be used as Dan Rigby said but there is one problem with the String.Empty. It will remain always empty no matter if it is read before or after it reads. I had a problem in my project yesterday with that. I removed it and it worked the way it was supposed to. It's better to declare the variable and then call it when it's needed. String.Empty will always keep it empty unless the variable needs to be initialized which only then should you use String.Empty. Thought I would throw this tid-bit out for everyone as I've experienced it.

jQuery checkbox check/uncheck

Use .prop() instead and if we go with your code then compare like this:

Look at the example jsbin:

  $("#news_list tr").click(function () {
    var ele = $(this).find(':checkbox');
    if ($(':checked').length) {
      ele.prop('checked', false);
      $(this).removeClass('admin_checked');
    } else {
      ele.prop('checked', true);
      $(this).addClass('admin_checked');
    }
 });

Changes:

  1. Changed input to :checkbox.
  2. Comparing the length of the checked checkboxes.

Maintaining the final state at end of a CSS3 animation

Try adding animation-fill-mode: forwards;. For example like this: 

-webkit-animation: bubble 1.0s forwards; /* for less modern browsers */
        animation: bubble 1.0s forwards;

Is there a way to view past mysql queries with phpmyadmin?

You just need to click on console at the bottom of the screen in phpMyAdmin and you will get the Executed history:

enter image description here

"Cloning" row or column vectors

Use numpy.tile:

>>> tile(array([1,2,3]), (3, 1))
array([[1, 2, 3],
       [1, 2, 3],
       [1, 2, 3]])

or for repeating columns:

>>> tile(array([[1,2,3]]).transpose(), (1, 3))
array([[1, 1, 1],
       [2, 2, 2],
       [3, 3, 3]])

What is the reason for the error message "System cannot find the path specified"?

The following worked for me:

  1. Open the Registry Editor (press windows key, type regedit and hit Enter) .
  2. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun and clear the values.
  3. Also check HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\AutoRun.

Error: Cannot Start Container: stat /bin/sh: no such file or directory"

This error

docker: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"/bin/sh\": stat /bin/sh: no such file or directory": unknown.

occurs when creating a docker image from base image eg. scratch. This is because the resulting image does not have a shell to execute the image. If your use:

ENV EXECUTABLE hello
cmd [$EXECUTABLE]

in your docker file, docker uses /bin/sh to parse the input string. and hence the error. Inspecting on the image, your will find:

$docker inspect <image-name>
"Entrypoint": [
                "/bin/sh",
                "-c",
                "[$HM_APP]"
            ]

This means that the ENTRYPOINT or CMD arguments will be parsed using /bin/sh -c. The solution that worked for me is to parse the command as a JSON array of string e.g.

cmd ["hello"]

and inspecting the image again: 

"Entrypoint": [
                "hello"
            ]

This removes the dependence on /bin/sh the docker app can now execute the binary file. Example:

FROM scratch

# Environmental variables

# Copy files
ADD . /
# Home dir
WORKDIR /bin

EXPOSE 8083
ENTRYPOINT ["hospitalms"]

Hope this helps someone in future.

Extending from two classes

Make an interface. Java doesn't have multiple inheritance.

http://csis.pace.edu/~bergin/patterns/multipleinheritance.html

Tri-state Check box in HTML?

You could use HTML's indeterminate IDL attribute on input elements.

MetadataException: Unable to load the specified metadata resource

I had the same problem. I looked into my complied dll with reflector and have seen that the name of the resource was not right. I renamed and it looks fine now.

onchange event on input type=range is not triggering in firefox while dragging

Andrew Willem's solutions are not mobile device compatible.

Here's a modification of his second solution that works in Edge, IE, Opera, FF, Chrome, iOS Safari and mobile equivalents (that I could test):

Update 1: Removed "requestAnimationFrame" portion, as I agree it's not necessary: 

var listener = function() {
  // do whatever
};

slider1.addEventListener("input", function() {
  listener();
  slider1.addEventListener("change", listener);
});
slider1.addEventListener("change", function() {
  listener();
  slider1.removeEventListener("input", listener);
});

Update 2: Response to Andrew's 2nd Jun 2016 updated answer:

Thanks, Andrew - that appears to work in every browser I could find (Win desktop: IE, Chrome, Opera, FF; Android Chrome, Opera and FF, iOS Safari).

Update 3: if ("oninput in slider) solution

The following appears to work across all the above browsers. (I cannot find the original source now.) I was using this, but it subsequently failed on IE and so I went looking for a different one, hence I ended up here.

if ("oninput" in slider1) {
    slider1.addEventListener("input", function () {
        // do whatever;
    }, false);
}

But before I checked your solution, I noticed this was working again in IE - perhaps there was some other conflict.

Can Google Chrome open local links?

LocalLinks now seems to be obsolete.

LocalExplorer seems to have taken it's place and provides similar functionality:

https://chrome.google.com/webstore/detail/local-explorer-file-manag/eokekhgpaakbkfkmjjcbffibkencdfkl/reviews?hl=en

It's basically a chrome plugin that replaces file:// links with localexplorer:// links, combined with an installable protocol handler that intercepts localexplorer:// links.

Best thing I can find available right now, I have no affiliation with the developer.

What does set -e mean in a bash script?

 
Script 1: without setting -e
#!/bin/bash
decho "hi"
echo "hello"
This will throw error in decho and program continuous to next line

Script 2: With setting -e
#!/bin/bash
set -e
decho "hi" 
echo "hello"
# Up to decho "hi" shell will process and program exit, it will not proceed further

Timer Interval 1000 != 1 second?

The proper interval to get one second is 1000. The Interval property is the time between ticks in milliseconds:

MSDN: Timer.Interval Property

So, it's not the interval that you set that is wrong. Check the rest of your code for something like changing the interval of the timer, or binding the Tick event multiple times.

simple custom event

This is an easy way to create custom events and raise them. You create a delegate and an event in the class you are throwing from. Then subscribe to the event from another part of your code. You have already got a custom event argument class so you can build on that to make other event argument classes. N.B: I have not compiled this code.

public partial class Form1 : Form
{
    private TestClass _testClass;
    public Form1()
    {
        InitializeComponent();
        _testClass = new TestClass();
        _testClass.OnUpdateStatus += new TestClass.StatusUpdateHandler(UpdateStatus);
    }

    private void UpdateStatus(object sender, ProgressEventArgs e)
    {
        SetStatus(e.Status);
    }

    private void SetStatus(string status)
    {
        label1.Text = status;
    }

    private void button1_Click_1(object sender, EventArgs e)
    {
         TestClass.Func();
    }

}

public class TestClass
{
    public delegate void StatusUpdateHandler(object sender, ProgressEventArgs e);
    public event StatusUpdateHandler OnUpdateStatus;

    public static void Func()
    {
        //time consuming code
        UpdateStatus(status);
        // time consuming code
        UpdateStatus(status);
    }

    private void UpdateStatus(string status)
    {
        // Make sure someone is listening to event
        if (OnUpdateStatus == null) return;

        ProgressEventArgs args = new ProgressEventArgs(status);
        OnUpdateStatus(this, args);
    }
}

public class ProgressEventArgs : EventArgs
{
    public string Status { get; private set; }

    public ProgressEventArgs(string status)
    {
        Status = status;
    }
}

Enum String Name from Value

DB to C#

EnumDisplayStatus status = (EnumDisplayStatus)int.Parse(GetValueFromDb());

C# to DB

string dbStatus = ((int)status).ToString();

for each loop in groovy

as simple as:

tmpHM.each{ key, value -> 
  doSomethingWithKeyAndValue key, value
}

How can I pull from remote Git repository and override the changes in my local repository?

Provided that the remote repository is origin, and that you're interested in master:

git fetch origin
git reset --hard origin/master

This tells it to fetch the commits from the remote repository, and position your working copy to the tip of its master branch.

All your local commits not common to the remote will be gone.

How to set Oracle's Java as the default Java in Ubuntu?

If you're doing any sort of development you need to point to the JDK (Java Development Kit). Otherwise, you can point to the JRE (Java Runtime Environment).

The JDK contains everything the JRE has and more. If you're just executing Java programs, you can point to either the JRE or the JDK.

You should set JAVA_HOME based on current Java you are using. readlink will print value of a symbolic link for current Java and sed will adjust it to JRE directory:

export JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:bin/java::")

If you want to set up JAVA_HOME to JDK you should go up one folder more:

export JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:jre/bin/java::")

Can't bind to 'formGroup' since it isn't a known property of 'form'

You need to import the FormsModule, ReactiveFormsModule in this module as well as the top level.

If you used a reactiveForm in another module then you've to do also this step along with above step: import also reactiveFormsModule in that particular module.

For example:

imports: [
  BrowserModule,
  FormsModule,
  ReactiveFormsModule,
  AppRoutingModule,
  HttpClientModule,
  BrowserAnimationsModule
],

warning: assignment makes integer from pointer without a cast

What Jeremiah said, plus the compiler issues the warning because the production: 

*src ="anotherstring";

says: take the address of "anotherstring" -- "anotherstring" IS a char pointer -- and store that pointer indirect through src (*src = ... ) into the first char of the string "abcdef..." The warning might be baffling because there is nowhere in your code any mention of any integer: the warning seems nonsensical. But, out of sight behind the curtain, is the rule that "int" and "char" are synonymous in terms of storage: both occupy the same number of bits. The compiler doesn't differentiate when it issues the warning that you are storing into an integer. Which, BTW, is perfectly OK and legal but probably not exactly what you want in this code.

-- pete

Find the paths between two given nodes?

Breadth-first search traverses a graph and in fact finds all paths from a starting node. Usually, BFS doesn't keep all paths, however. Instead, it updates a prededecessor function p to save the shortest path. You can easily modify the algorithm so that p(n) doesn't only store one predecessor but a list of possible predecessors.

Then all possible paths are encoded in this function, and by traversing p recursively you get all possible path combinations.

One good pseudocode which uses this notation can be found in Introduction to Algorithms by Cormen et al. and has subsequently been used in many University scripts on the subject. A Google search for “BFS pseudocode predecessor p” uproots this hit on Stack Exchange.

How can I verify if an AD account is locked?

If you want to check via command line , then use command "net user username /DOMAIN"

enter image description here

Pass in an array of Deferreds to $.when()

If you're using angularJS or some variant of the Q promise library, then you have a .all() method that solves this exact problem.

var savePromises = [];
angular.forEach(models, function(model){
  savePromises.push(
    model.saveToServer()
  )
});

$q.all(savePromises).then(
  function success(results){...},
  function failed(results){...}
);

see the full API:

https://github.com/kriskowal/q/wiki/API-Reference#promiseall

https://docs.angularjs.org/api/ng/service/$q

Switch statement equivalent in Windows batch file

I searched switch / case in batch files today and stumbled upon this. I used this solution and extended it with a goto exit.

IF "%1"=="red" echo "one selected" & goto exit
IF "%1"=="two" echo "two selected" & goto exit
...

echo "Options: [one | two | ...]

:exit

Which brings in the default state (echo line) and no extra if's when the choice is found.

how to create a window with two buttons that will open a new window

You add your ActionListener twice to button. So correct your code for button2 to

  JButton button2 = new JButton("hello agin2");
  panel.add(button2);
  button2.addActionListener (new Action2());//note the button2 here instead of button

Furthermore, perform your Swing operations on the correct thread by using EventQueue.invokeLater

PHP parse/syntax errors; and how to solve them

Unexpected T_IS_EQUAL
Unexpected T_IS_GREATER_OR_EQUAL
Unexpected T_IS_IDENTICAL
Unexpected T_IS_NOT_EQUAL
Unexpected T_IS_NOT_IDENTICAL
Unexpected T_IS_SMALLER_OR_EQUAL
Unexpected <
Unexpected >

Comparison operators such as ==, >=, ===, !=, <>, !== and <= or < and > mostly should be used just in expressions, such as if expressions. If the parser complains about them, then it often means incorrect paring or mismatched ( ) parens around them.

  1. Parens grouping

    In particular for if statements with multiple comparisons you must take care to correctly count opening and closing parenthesis:

                            ?
if (($foo < 7) && $bar) > 5 || $baz < 9) { ... }
                      ?

    Here the if condition here was already terminated by the )

    Once your comparisons become sufficiently complex it often helps to split it up into multiple and nested if constructs rather.

  2. isset() mashed with comparing

    A common newcomer is pitfal is trying to combine isset() or empty() with comparisons:

                            ?
if (empty($_POST["var"] == 1)) {

    Or even:

                        ?
if (isset($variable !== "value")) {

    This doesn't make sense to PHP, because isset and empty are language constructs that only accept variable names. It doesn't make sense to compare the result either, because the output is only/already a boolean.

  3. Confusing >= greater-or-equal with => array operator

    Both operators look somewhat similar, so they sometimes get mixed up:

             ?
if ($var => 5) { ... }

    You only need to remember that this comparison operator is called "greater than or equal" to get it right.

    See also: If statement structure in PHP

  4. Nothing to compare against

    You also can't combine two comparisons if they pertain the same variable name:

                     ?
if ($xyz > 5 and < 100)

    PHP can't deduce that you meant to compare the initial variable again. Expressions are usually paired according to operator precedence, so by the time the < is seen, there'd be only a boolean result left from the original variable.

    See also: unexpected T_IS_SMALLER_OR_EQUAL

  5. Comparison chains

    You can't compare against a variable with a row of operators:

                      ?
 $reult = (5 < $x < 10);

    This has to be broken up into two comparisons, each against $x.

    This is actually more a case of blacklisted expressions (due to equivalent operator associativity). It's syntactically valid in a few C-style languages, but PHP wouldn't interpret it as expected comparison chain either.

  6. Unexpected >
    Unexpected <

    The greater than > or less than < operators don't have a custom T_XXX tokenizer name. And while they can be misplaced like all they others, you more often see the parser complain about them for misquoted strings and mashed HTML:

                            ?
print "<a href='z">Hello</a>";
                 ?

    This amounts to a string "<a href='z" being compared > to a literal constant Hello and then another < comparison. Or that's at least how PHP sees it. The actual cause and syntax mistake was the premature string " termination.

    It's also not possible to nest PHP start tags:

    <?php echo <?php my_func(); ?>
           ?

See also:

enum Values to NSString (iOS)

  1. a macro:

    #define stringWithLiteral(literal) @#literal

  2. an enum:

    typedef NS_ENUM(NSInteger, EnumType) {
    EnumType0,
    EnumType1,
    EnumType2
};

  3. an array:

    static NSString * const EnumTypeNames[] = {
    stringWithLiteral(EnumType0),
    stringWithLiteral(EnumType1),
    stringWithLiteral(EnumType2)
};

  4. using:

    EnumType enumType = ...;
NSString *enumName = EnumTypeNames[enumType];

==== EDIT ====

Copy the following code to your project and run.

#define stringWithLiteral(literal) @#literal

typedef NS_ENUM(NSInteger, EnumType) {
    EnumType0,
    EnumType1,
    EnumType2
};

static NSString * const EnumTypeNames[] = {
    stringWithLiteral(EnumType0),
    stringWithLiteral(EnumType1),
    stringWithLiteral(EnumType2)
};

- (void)test {
    EnumType enumType = EnumType1;
    NSString *enumName = EnumTypeNames[enumType];
    NSLog(@"enumName: %@", enumName);
}

How do I add slashes to a string in Javascript?

Following JavaScript function handles ', ", \b, \t, \n, \f or \r equivalent of php function addslashes().

function addslashes(string) {
    return string.replace(/\\/g, '\\\\').
        replace(/\u0008/g, '\\b').
        replace(/\t/g, '\\t').
        replace(/\n/g, '\\n').
        replace(/\f/g, '\\f').
        replace(/\r/g, '\\r').
        replace(/'/g, '\\\'').
        replace(/"/g, '\\"');
}

Passing an Object from an Activity to a Fragment

Create a static method in the Fragment and then get it using getArguments().

Example:

public class CommentsFragment extends Fragment {
  private static final String DESCRIBABLE_KEY = "describable_key";
  private Describable mDescribable;

  public static CommentsFragment newInstance(Describable describable) {
    CommentsFragment fragment = new CommentsFragment();
    Bundle bundle = new Bundle();
    bundle.putSerializable(DESCRIBABLE_KEY, describable);
    fragment.setArguments(bundle);

    return fragment;
  }

  @Override
  public View onCreateView(LayoutInflater inflater,
      ViewGroup container, Bundle savedInstanceState) {

    mDescribable = (Describable) getArguments().getSerializable(
        DESCRIBABLE_KEY);

    // The rest of your code
}

You can afterwards call it from the Activity doing something like:

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
Fragment fragment = CommentsFragment.newInstance(mDescribable);
ft.replace(R.id.comments_fragment, fragment);
ft.commit();

When should I really use noexcept?

There are many examples of functions that I know will never throw, but for which the compiler cannot determine so on its own. Should I append noexcept to the function declaration in all such cases?

When you say "I know [they] will never throw", you mean by examining the implementation of the function you know that the function will not throw. I think that approach is inside out.

It is better to consider whether a function may throw exceptions to be part of the design of the function: as important as the argument list and whether a method is a mutator (... const). Declaring that "this function never throws exceptions" is a constraint on the implementation. Omitting it does not mean the function might throw exceptions; it means that the current version of the function and all future versions may throw exceptions. It is a constraint that makes the implementation harder. But some methods must have the constraint to be practically useful; most importantly, so they can be called from destructors, but also for implementation of "roll-back" code in methods that provide the strong exception guarantee.

Renaming branches remotely in Git

Sure. Just rename the branch locally, push the new branch, and push a deletion of the old.

The only real issue is that other users of the repository won't have local tracking branches renamed.

How to get UTC time in Python?

 
import datetime
import pytz

# datetime object with timezone awareness:
datetime.datetime.now(tz=pytz.utc)

# seconds from epoch:
datetime.datetime.now(tz=pytz.utc).timestamp() 

# ms from epoch:
int(datetime.datetime.now(tz=pytz.utc).timestamp() * 1000)

Trigger insert old values- values that was updated

ALTER trigger ETU on Employee FOR UPDATE AS insert into Log (EmployeeId, LogDate, OldName) select EmployeeId, getdate(), name from deleted go

System.Windows.Markup.XamlParseException' occurred in PresentationFramework.dll?

I had this when build my application with "All cpu" target while it referenced a 3rd party x64-only (managed) dll.

Only Add Unique Item To List

If your requirements are to have no duplicates, you should be using a HashSet.

HashSet.Add will return false when the item already exists (if that even matters to you).

You can use the constructor that @pstrjds links to below (or here) to define the equality operator or you'll need to implement the equality methods in RemoteDevice (GetHashCode & Equals).

Convert number to varchar in SQL with formatting

Correción: 3-LEN

declare @t  TINYINT 
set @t =233
SELECT ISNULL(REPLICATE('0',3-LEN(@t)),'') + CAST(@t AS VARCHAR)

How do I set a checkbox in razor view?

If we set "true" in model, It'll always true. But we want to set option value for my checkbox we can use this. Important in here is The name of checkbox "AllowRating", It's must name of var in model if not when we post the value not pass in Database. form of it: 

@Html.CheckBox("NameOfVarInModel", true) ;

for you!

@Html.CheckBox("AllowRating", true) ;

How to setup Tomcat server in Netbeans?

If TomCat is install. Perhaps it is not installed Java EE. Services-> plug-ins-> additional plug-ins-> in the search dial tomcat. and install the module java ee. then in the services, servers, add the tomcat server.

Naming Classes - How to avoid calling everything a "<WhatEver>Manager"?

I think the most important thing to keep in mind is: is the name descriptive enough? Can you tell by looking at the name what the Class is supposed to do? Using words like "Manager", "Service" or "Handler" in your class names can be considered too generic, but since a lot of programmers use them it also helps understanding what the class is for.

I myself have been using the facade-pattern a lot (at least, I think that's what it is called). I could have a User class that describes just one user, and a Users class that keeps track of my "collection of users". I don't call the class a UserManager because I don't like managers in real-life and I don't want to be reminded of them :) Simply using the plural form helps me understand what the class does.

NodeJS/express: Cache and 304 status code

I had the same problem in Safari and Chrome (the only ones I've tested) but I just did something that seems to work, at least I haven't been able to reproduce the problem since I added the solution. What I did was add a metatag to the header with a generated timstamp. Doesn't seem right but it's simple :)

<meta name="304workaround" content="2013-10-24 21:17:23">

Update P.S As far as I can tell, the problem disappears when I remove my node proxy (by proxy i mean both express.vhost and http-proxy module), which is weird...

How to silence output in a Bash script?

If it outputs to stderr as well you'll want to silence that. You can do that by redirecting file descriptor 2:

# Send stdout to out.log, stderr to err.log
myprogram > out.log 2> err.log

# Send both stdout and stderr to out.log
myprogram &> out.log      # New bash syntax
myprogram > out.log 2>&1  # Older sh syntax

# Log output, hide errors.
myprogram > out.log 2> /dev/null

Store a closure as a variable in Swift

I've provide an example not sure if this is what you're after.

var completionHandler: (_ value: Float) -> ()

func printFloat(value: Float) {
    print(value)
}

completionHandler = printFloat

completionHandler(5)

It simply prints 5 using the completionHandler variable declared.

How do you display code snippets in MS Word preserving format and syntax highlighting?

I type my code in Visual Studio, and then copy-paste into word. it preserves the colors.

ASP.NET MVC 404 Error Handling

The response from Marco is the BEST solution. I needed to control my error handling, and I mean really CONTROL it. Of course, I have extended the solution a little and created a full error management system that manages everything. I have also read about this solution in other blogs and it seems very acceptable by most of the advanced developers.

Here is the final code that I am using:

protected void Application_EndRequest()
    {
        if (Context.Response.StatusCode == 404)
        {
            var exception = Server.GetLastError();
            var httpException = exception as HttpException;
            Response.Clear();
            Server.ClearError();
            var routeData = new RouteData();
            routeData.Values["controller"] = "ErrorManager";
            routeData.Values["action"] = "Fire404Error";
            routeData.Values["exception"] = exception;
            Response.StatusCode = 500;

            if (httpException != null)
            {
                Response.StatusCode = httpException.GetHttpCode();
                switch (Response.StatusCode)
                {
                    case 404:
                        routeData.Values["action"] = "Fire404Error";
                        break;
                }
            }
            // Avoid IIS7 getting in the middle
            Response.TrySkipIisCustomErrors = true;
            IController errormanagerController = new ErrorManagerController();
            HttpContextWrapper wrapper = new HttpContextWrapper(Context);
            var rc = new RequestContext(wrapper, routeData);
            errormanagerController.Execute(rc);
        }
    }

and inside my ErrorManagerController :

        public void Fire404Error(HttpException exception)
    {
        //you can place any other error handling code here
        throw new PageNotFoundException("page or resource");
    }

Now, in my Action, I am throwing a Custom Exception that I have created. And my Controller is inheriting from a custom Controller Based class that I have created. The Custom Base Controller was created to override error handling. Here is my custom Base Controller class:

public class MyBasePageController : Controller
{
    protected override void OnException(ExceptionContext filterContext)
    {
        filterContext.GetType();
        filterContext.ExceptionHandled = true;
        this.View("ErrorManager", filterContext).ExecuteResult(this.ControllerContext);
        base.OnException(filterContext);
    }
}

The "ErrorManager" in the above code is just a view that is using a Model based on ExceptionContext

My solution works perfectly and I am able to handle ANY error on my website and display different messages based on ANY exception type.

Jquery find nearest matching element

You could try:

$(this).closest(".column").prev().find(".inputQty").val();

What is the difference between a mutable and immutable string in C#?

Here is the example for Immutable string and Mutable string builder

        Console.WriteLine("Mutable String Builder");
        Console.WriteLine("....................................");
        Console.WriteLine();
        StringBuilder sb = new StringBuilder("Very Good Morning");
        Console.WriteLine(sb.ToString());
        sb.Remove(0, 5);
        Console.WriteLine(sb.ToString());

        Console.WriteLine();

        Console.WriteLine("Immutable String");
        Console.WriteLine("....................................");
        Console.WriteLine();
        string s = "Very Good Morning";
        Console.WriteLine(s);
        s.Substring(0, 5);
        Console.WriteLine(s);
        Console.ReadLine();

ES6 Class Multiple inheritance

https://www.npmjs.com/package/ts-mixer

With the best TS support and many other useful features!

Render Partial View Using jQuery in ASP.NET MVC

You can't render a partial view using only jQuery. You can, however, call a method (action) that will render the partial view for you and add it to the page using jQuery/AJAX. In the below, we have a button click handler that loads the url for the action from a data attribute on the button and fires off a GET request to replace the DIV contained in the partial view with the updated contents.

$('.js-reload-details').on('click', function(evt) {
    evt.preventDefault();
    evt.stopPropagation();

    var $detailDiv = $('#detailsDiv'),
        url = $(this).data('url');

    $.get(url, function(data) {
        $detailDiv.replaceWith(data);         
    });
});

where the user controller has an action named details that does:

public ActionResult Details( int id )
{
    var model = ...get user from db using id...

    return PartialView( "UserDetails", model );
}

This is assuming that your partial view is a container with the id detailsDiv so that you just replace the entire thing with the contents of the result of the call.

Parent View Button

 <button data-url='@Url.Action("details","user", new { id = Model.ID } )'
         class="js-reload-details">Reload</button>

User is controller name and details is action name in @Url.Action(). UserDetails partial view

<div id="detailsDiv">
    <!-- ...content... -->
</div>

Find a file with a certain extension in folder

As per my understanding, this can be done in two ways :

1) You can use Directory Class with Getfiles method and traverse across all files to check our required extension.

Directory.GetFiles("your_folder_path)[i].Contains("*.txt")

2) You can use Path Class with GetExtension Method which takes file path as a parameter and verifies the extension.To get the file path, just have a looping condition that will fetch a single file and return the filepath that can be used for verification.

Path.GetExtension(your_file_path).Equals(".json")

Note : Both the logic has to be inside a looping condition.

How to add a set path only for that batch file executing?

There is an important detail:

set PATH="C:\linutils;C:\wingit\bin;%PATH%"

does not work, while

set PATH=C:\linutils;C:\wingit\bin;%PATH%

works. The difference is the quotes!

UPD also see the comment by venimus

cURL POST command line on WINDOWS RESTful service

We can use below Curl command in Windows Command prompt to send the request. Use the Curl command below, replace single quote with double quotes, remove quotes where they are not there in below format and use the ^ symbol.

curl http://localhost:7101/module/url ^
  -d @D:/request.xml ^
  -H "Content-Type: text/xml" ^
  -H "SOAPAction: process" ^
  -H "Authorization: Basic xyz" ^
  -X POST

how to generate a unique token which expires after 24 hours?

There are two possible approaches; either you create a unique value and store somewhere along with the creation time, for example in a database, or you put the creation time inside the token so that you can decode it later and see when it was created.

To create a unique token:

string token = Convert.ToBase64String(Guid.NewGuid().ToByteArray());

Basic example of creating a unique token containing a time stamp:

byte[] time = BitConverter.GetBytes(DateTime.UtcNow.ToBinary());
byte[] key = Guid.NewGuid().ToByteArray();
string token = Convert.ToBase64String(time.Concat(key).ToArray());

To decode the token to get the creation time:

byte[] data = Convert.FromBase64String(token);
DateTime when = DateTime.FromBinary(BitConverter.ToInt64(data, 0));
if (when < DateTime.UtcNow.AddHours(-24)) {
  // too old
}

Note: If you need the token with the time stamp to be secure, you need to encrypt it. Otherwise a user could figure out what it contains and create a false token.

What is the effect of encoding an image in base64?

It will be bigger in base64.

Base64 uses 6 bits per byte to encode data, whereas binary uses 8 bits per byte. Also, there is a little padding overhead with Base64. Not all bits are used with Base64 because it was developed in the first place to encode binary data on systems that can only correctly process non-binary data.

That means that the encoded image will be around 33%-36% larger (33% from not using 2 of the bits per byte, plus possible padding accounting for the remaining 3%).

Clear contents of cells in VBA using column reference

I just came up with this very simple method of clearing an entire sheet.

Sub ClearThisSheet()

ActiveSheet.UsedRange.ClearContents

End Sub

How to check if memcache or memcached is installed for PHP?

It may be relevant to see if it's running in PHP via command line as well-

<path-to-php-binary>php -i | grep memcache

How to 'update' or 'overwrite' a python list

If you are trying to take a value from the same array and trying to update it, you can use the following code. 

{  'condition': { 
                     'ts': [   '5a81625ba0ff65023c729022',
                               '5a8161ada0ff65023c728f51',
                               '5a815fb4a0ff65023c728dcd']}

If the collection is userData['condition']['ts'] and we need to 

    for i,supplier in enumerate(userData['condition']['ts']): 
        supplier = ObjectId(supplier)
        userData['condition']['ts'][i] = supplier

The output will be 

{'condition': {   'ts': [   ObjectId('5a81625ba0ff65023c729022'),
                            ObjectId('5a8161ada0ff65023c728f51'),
                            ObjectId('5a815fb4a0ff65023c728dcd')]}

Get fragment (value after hash '#') from a URL in php

You can do it by a combination of javascript and php:

<div id="cont"></div>

And by the other side;

<script>
var h = window.location.hash;
var h1 = (win.substr(1));//string with no #
var q1 = '<input type="text" id="hash" name="hash" value="'+h1+'">';

setInterval(function(){
if(win1!="")
{
document.querySelector('#cont').innerHTML = q1;
} else alert("Something went wrong")
},1000);
</script>

Then, on form submit you can retrieve the value via $_POST['hash'] (set the form)