In the worker file change to this:

    . &quot;c:\scratch\b.ps1&quot;

    ShowMessage &quot;Hello&quot;

As @RoiDanton mentioned below:

&gt; Attention when using relative pathing: Don&#39;t forget to prepend a dot
&gt; before the path . &quot;.\b.ps1&quot;.


The first dot is an operator used to modify the scope and in that context it has nothing to do with paths. See [Dot Source Notation][1].


  [1]: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_scopes?view=powershell-6

In your worker file, dot-source the library file, this will load all content (functions, variables, etc) to the global scope, and then you&#39;ll be able to call functions from the library file.

    =================== Worker file ==========================
    # dot-source library script
    # notice that you need to have a space 
    # between the dot and the path of the script
    . c:\library.ps1
    
    ShowMessage -AValue Hello
    =================== End Worker file ======================

AS the title says I am trying to check whether a variable is defined in SASS. (I am using compass if that makes any different difference)

I&#39;ve found the Ruby equivalent which is:

&lt;pre&gt;&lt;code&gt;defined? foo&lt;/code&gt;&lt;/pre&gt;

Gave that a shot in the dark but it just gave me the error:

`defined&quot;: expected &quot;{&quot;, was &quot;?`

I&#39;ve found a work around (which is obviously just to define the variable in all cases, which in this case it actually makes more sense) but I&#39;d really like to know if this is possible for the future



Checking if a variable is defined in SASS

How to resize image (Bitmap) to for example 800*480 programatically ? I have retrieved a picture in my app which is ~1MB and I need to scale it down to 800*480
I have loaded that picture and compressed it but how do I do to make it smaller :

    ByteArrayOutputStream bos = new ByteArrayOutputStream(8192);
    photo.compress(CompressFormat.JPEG, 25, bos); 

How to resize image (Bitmap) to a given size?

I have functions in a &#39;library&#39; file to be called from my &#39;worker&#39; script. 

**Library File**

    function ShowMessage($AValue)
    {
      $a = new-object -comobject wscript.shell
      $b = $a.popup( $AValue )
    }
    
    
**Worker File**

    . {c:\scratch\b.ps1}
    
    ShowMessage &quot;Hello&quot;

Running the &#39;worker&#39; script works fine when in the PowerShell IDE but when I right-click the worker file and choose &#39;Run with PowerShell&#39; it cannot find the function &#39;ShowMessage&#39;. Both files are in the same folder. What might be happening?







Call a function in another script when executing using &#39;Run With PowerShell&#39;

I have functions in a 'library' file to be called from my 'worker' script.
Library File
<pre><code class="hljs language-php">function ShowMessage($AValue)
{
 $a = new-object -comobject wscript.shell
 $b = $a.popup( $AValue )
}

</code></pre>
Worker File
<pre><code class="hljs language-arduino">. {c:\scratch\b.ps1}

ShowMessage "Hello"
</code></pre>
Running the 'worker' script works fine when in the PowerShell IDE but when I right-click the worker file and choose 'Run with PowerShell' it cannot find the function 'ShowMessage'. Both files are in the same folder. What might be happening?

I&#39;m looking to write a function that takes an array of pages/categories (from a flat database result) and generates an array of nested page/category items based on the parent ids. I would like to do this recursively, so that any level of nesting can be done.

For example: I&#39;m fetching all the pages in one query, and this is the what the database table looks like

    +-------+---------------+---------------------------+
    |   id  |   parent_id   |           title           |
    +-------+---------------+---------------------------+
    |   1   |       0       |   Parent Page             |
    |   2   |       1       |   Sub Page                |
    |   3   |       2       |   Sub Sub Page            |
    |   4   |       0       |   Another Parent Page     |
    +-------+---------------+---------------------------+
 

And this is the array I would like to end up with to process in my view files:

    Array
    (
        [0] =&gt; Array
    	    (
    			[id] =&gt; 1
    			[parent_id] =&gt; 0
    			[title] =&gt; Parent Page
    			[children] =&gt; Array
    						(
    							[0] =&gt; Array
    								(
    									[id] =&gt; 2
    									[parent_id] =&gt; 1
    									[title] =&gt; Sub Page
    									[children] =&gt; Array
    												(
    													[0] =&gt; Array
    														(
    															[id] =&gt; 3
    															[parent_id] =&gt; 1
    															[title] =&gt; Sub Sub Page
    														)
    												)
    								)
    						)
    	    )
    	[1] =&gt; Array
    		(
    			[id] =&gt; 4
    			[parent_id] =&gt; 0
    			[title] =&gt; Another Parent Page
    		)
    )


I&#39;ve looked and tried nearly every solution I&#39;ve come across (there&#39;s a lot of them here on Stack Overflow, but have had no luck getting something generic enough that will work for both pages and categories.

Here&#39;s the closest I&#39;ve gotten, but it doesn&#39;t work because I&#39;m assigning the children to the first level parent.

    function page_walk($array, $parent_id = FALSE)
    {	
    	$organized_pages = array();
	
    	$children = array();
	
    	foreach($array as $index =&gt; $page)
    	{
    		if ( $page[&#39;parent_id&#39;] == 0) // No, just spit it out and you&#39;re done
    		{
    			$organized_pages[$index] = $page;
    		}
    		else // If it does, 
    		{		
    			$organized_pages[$parent_id][&#39;children&#39;][$page[&#39;id&#39;]] = $this-&gt;page_walk($page, $parent_id);
    		}
    	}

    	return $organized_pages;
    }

    function page_list($array)
    {		
    	$fakepages = array();
    	$fakepages[0] = array(&#39;id&#39; =&gt; 1, &#39;parent_id&#39; =&gt; 0, &#39;title&#39; =&gt; &#39;Parent Page&#39;);
    	$fakepages[1] = array(&#39;id&#39; =&gt; 2, &#39;parent_id&#39; =&gt; 1, &#39;title&#39; =&gt; &#39;Sub Page&#39;);
    	$fakepages[2] = array(&#39;id&#39; =&gt; 3, &#39;parent_id&#39; =&gt; 2, &#39;title&#39; =&gt; &#39;Sub Sub Page&#39;);
    	$fakepages[3] = array(&#39;id&#39; =&gt; 4, &#39;parent_id&#39; =&gt; 3, &#39;title&#39; =&gt; &#39;Another Parent Page&#39;);
	
    	$pages = $this-&gt;page_walk($fakepages, 0);

    	print_r($pages);
    }

Recursive function to generate multidimensional array from database result

Searching for appropriate answer proved difficult because of the existence of many other problems related to my keywords, so I&#39;ll ask this here.

As we know, functions in javascript are objects and they have their own properties and methods (more properly, function istances, inherited from Function.prototype).

I was considering adding custom properties for one function (method), let&#39;s skip the &quot;why?&quot; part and go straight to the code:

    var something = {
        myMethod: function () {
            if (something.myMethod.someProperty === undefined) {
                something.myMethod.someProperty = &quot;test&quot;;
            }
            console.log(something.myMethod);
        }
    }

When inspected with Firebug&#39;s DOM explorer, the property is defined as expected. However, as I don&#39;t consider myself a javascript expert, I have the following questions:

 1. Can this method be considered &quot;proper&quot; and standards compliant? It works in Firefox but there are many things working as expected in web browsers and aren&#39;t by any means standards.
 2. Is this kind of altering objects by adding new properties to them a good practice?


Adding custom properties to a function

This &quot;underscoring&quot; seems to occur a lot, and I was wondering if this was a requirement in the Python language, or merely a matter of convention?

Also, could someone name and explain which functions tend to have the underscores, and why (`__init__`, for instance)?

Why do some functions have underscores &quot;__&quot; before and after the function name?

I have a largish table in an Excel worksheet:

    Column_1 | Column_2 | Column_3

    ValueA       ValueB     ValueC
    ....

What I need is a function that will take as input the range and an SQL-like query String and return a range of rows that match the query, e.g.:

    =SQL_SELECT(A1:C1000, &quot;SELECT * WHERE Column_1 = ValueH AND Column_3 = blah&quot;)


Does something like this exist? Or what would be the best way to implement myself?

Excel function to make SQL-like queries on worksheet data?

I want to print the docstring of a python function from inside the function itself.
for eg.

    def my_function(self):
      &quot;&quot;&quot;Doc string for my function.&quot;&quot;&quot;
      # print the Docstring here.

At the moment I am doing this directly after `my_function` has been defined.

    print my_function.__doc__

But would rather let the function do this itself.

I have tried calling `print self.__doc__` `print self.my_function.__doc__` and `print this.__doc__` inside my_function but this did not work.

How to print Docstring of python function from inside the function itself?

When running a PowerShell script on a x64-bit OS platform, how can you determine _in the script_ what version of PowerShell (32-bit or 64-bit) the script is running on?  

**Background**  
Both 32-bit and 64-bit versions of PowerShell are installed by default on a 64-bit platform such as Windows Server 2008.  This can lead to difficulties when a PowerShell script is ran that must target a specific architecture (i.e. using 64-bit for a script for SharePoint 2010, in order to consume the 64-bit libraries).

Related question: 

 - [What is the best way to program against powershell&#39;s x64 vs. x86 variability?](https://stackoverflow.com/questions/602060/what-is-the-best-way-to-program-against-powershells-x64-vs-x86-variability) This question deals with code running against both 32-bit and 64-bit architectures.  My question deals with the case when you want to ensure the script only runs against the correct version.



Determine if current PowerShell Process is 32-bit or 64-bit?

I have an array of objects of the following structure:

    structure Disk
    {
      int UID;
      String Computer;
    }

A computer may have a bunch of shared disks, and a disk may be shared among computers.

I want to find out all the disks common to all the computers. For example, I have computer A, B, and C; Disks 1, 2, and 3.
The disk array is {1,A}, {1,B}, {2,A},{2,B},{2,C},{3,A}.
The result that I want should be the disk 2, because it appears on A, B, and C.

Is there a effective way to achieve this?

With multiple foreach loops it&#39;s achievable, but definitely I want a better way. I&#39;m thinking about operations like intersection, but didn&#39;t find this in PowerShell.


Union and Intersection in PowerShell?

I am working with a regex to match file contents:

    &gt; (get-content $_) -match $somePattern
    the line of text that matches the pattern

this returns true, a match, however my $matches variable remains null. 

    &gt; $matches -eq $null
    True

Shouldn&#39;t $matches have the match groups in it?

Powershell: match operator returns true but $matches is null

I am trying to get the ipaddress from a hostname using Powershell, but I really can&#39;t figure out how.

Any help?

Resolving IP Address from hostname with PowerShell

I am searching for a file in all the folders.

`Copyforbuild.bat` is available in many places, and I would like to search recursively.

    $File = &quot;V:\Myfolder\**\*.CopyForbuild.bat&quot;

How can I do it in PowerShell?


Content Type	Original Author	Original Content on Stackoverflow
Question	Brian Frost	View Question on Stackoverflow
Solution 1 - Function	Andrey Marchuk	View Answer on Stackoverflow
Solution 2 - Function	Shay Levy	View Answer on Stackoverflow

Call a function in another script when executing using 'Run With PowerShell'

Function Problem Overview

Function Solutions

Solution 1 - Function

Solution 2 - Function

How to resize image (Bitmap) to a given size?

Checking if a variable is defined in SASS

Attributions