describe('JavaScript addition operator', function () {
 it('adds two numbers together', function () {
  expect(1 + 2).toEqual(3);
 });
});

define(function () {
    function Song() {
    }

    Song.prototype.persistFavoriteStatus = function (value) {
        // something complicated
        throw new Error("not yet implemented");
    };
});

define(function () {
    function Player() {
    }
    Player.prototype.play = function (song) {
        this.currentlyPlayingSong = song;
        this.isPlaying = true;
    };

    Player.prototype.pause = function () {
        this.isPlaying = false;
    };

    Player.prototype.resume = function () {
        if (this.isPlaying) {
            throw new Error("song is already playing");
        }

        this.isPlaying = true;
    };

    Player.prototype.makeFavorite = function () {
        this.currentlyPlayingSong.persistFavoriteStatus(true);
    };
});

Get-Process | Where-Object { $_.Name -eq 'Dropbox' }

PS /Users/sirwanafifi/Desktop> $block = {
>> $newVar = 10
>> Write-Host $newVar
>> }

PS /Users/sirwanafifi/Desktop> & $block

PS /Users/sirwanafifi/Desktop> & "Get-Process"

PS /Users/sirwanafifi/Desktop> & "1 + 1"
or
PS /Users/sirwanafifi/Desktop> & "Get-Process -Name Slack"

Function Add-Something {
    Write-Host "$_ World"
}

"Hello" | Add-Something

Function Add-Something {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline = $true)]
        [string]$Name
    )

    Write-Host "$Name World"
}

"Hello" | Add-Something

$API_KEY = "...."

Function Read-WeatherData {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline = $true)]
        [string]$CityName
    )

    $Url = "https://api.openweathermap.org/data/2.5/forecast?q=$CityName&cnt=40&appid=$API_KEY&units=metric"
    Try {
        Write-Verbose "Reading weather data for $CityName"
        $Response = Invoke-RestMethod -Uri $Url
        $Response.list | ForEach-Object {
            Write-Verbose "Processing $($_.dt_txt)"
            [PSCustomObject]@{
                City               = $Response.city.name
                DateTime           = [DateTime]::Parse($_.dt_txt)
                Temperature        = $_.main.temp
                Humidity           = $_.main.humidity
                Pressure           = $_.main.pressure
                WindSpeed          = $_.wind.speed
                WindDirection      = $_.wind.deg
                Cloudiness         = $_.clouds.all
                Weather            = $_.weather.main
                WeatherDescription = $_.weather.description
            }
        } | Where-Object { $_.DateTime.Date -eq (Get-Date).Date }
        Write-Verbose "Done processing $CityName"
    }
    Catch {
        Write-Error $_.Exception.Message
    }
}

Read-WeatherData -CityName "London" -Verbose

begin
process
end
dynamicparam

function Show-Pipeline {
    begin { 
        Write-Host "Pipeline start" 
    }
    process { 
        Write-Host  "Pipeline process $_" 
    }
    end { 
        Write-Host  "Pipeline end $_" 
    }
}

PS /> 1..2 | Show-Pipeline                                   
Pipeline start 
Pipeline process 1
Pipeline process 2
Pipeline end 2

Function Ping-Website {
    [CmdletBinding()]
    Param(
        # As before
    )
    process {
        # As before
    }
}

PS /> "www.google.com", "www.yahoo.com" | Ping-Website

Website        Result  Number Of Attempts
-------        ------  ------------------
www.google.com Success                  3
www.yahoo.com  Success                  3

PS /> Read-Csv ./users.csv -Columns name

using namespace System.Management.Automation
Function Read-Csv {
    Param (
        [Parameter(Mandatory = $true, Position = 0)]
        [string]$Path
    )
    DynamicParam {
        $firstLine = Get-Content $Path | Select-Object -First 1
        [String[]]$headers = $firstLine -split ', '
        $parameters = [RuntimeDefinedParameterDictionary]::new()
        $parameter = [RuntimeDefinedParameter]::new(
            'Columns', [String[]], [Attribute[]]@(
                [Parameter]@{ Mandatory = $false; Position = 1 }
                [ValidateSet]::new($headers)
            )
        )
        $parameters.Add($parameter.Name, $parameter) 
        Return $parameters
    }
    Begin {
        $csvContent = Import-Csv $Path
        If ($PSBoundParameters.ContainsKey('Columns')) {
            $columns = $PSBoundParameters['Columns']
            $csvContent | Select-Object -Property $columns
        }
        Else {
            $csvContent
        }
    }
}

(function () {
    var itemCtx = {};
    itemCtx.Templates = {};
    itemCtx.Templates.Header = "<div><b title=\"اطلاعات فیلم ها\">Movie Data</b></div><ul>";
    itemCtx.Templates.Item = MyOverrideTemplate;
    itemCtx.Templates.Footer = "</ul>";
    itemCtx.BaseViewID = 1;
    itemCtx.ListTemplateType = 100; 
//For Generic List (More : http://msdn.microsoft.com/en-us/library/ms462947(v=office.12).aspx)

    SPClientTemplates.TemplateManager.RegisterTemplateOverrides(itemCtx);

})();



function GT(val , index)
{
    // example of val : 60 %
    var temp = val.split(' ')[0];
    var v = Number(temp);
    return v > index;
}

function LT(val, index) {
    var temp = val.split(' ')[0];
    var v = Number(temp);
    return v < index;
}

function EQ(val, index) {
    var temp = val.split(' ')[0];
    var v = Number(temp);
    return v == index;
}



function MyOverrideTemplate(ctx) {

   

    if (LT(ctx.CurrentItem.PopularityPercent ,25))
    {
        return "<li title='خیلی کم بازدید' style='color:white;background-color: red;width: 300px;height: 24px;'>" +
            ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
    }
    else
    if (LT(ctx.CurrentItem.PopularityPercent ,50))
    {
        return "<li title='کم بازدید'  style='color:maroon;background-color: #ffcc00;width: 300px;height: 24px;'>" +
            ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
    }
    else
    if (LT(ctx.CurrentItem.PopularityPercent ,75))
    {
        return "<li title='بازدید معمولی'  style='color:#ffcc00;background-color: maroon;width: 300px;height: 24px;'>" +
            ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
    }
    else
    if (LT(ctx.CurrentItem.PopularityPercent ,95))
    {
        return "<li title='پر بازدید'  style='color:yellow;background-color: blue;width: 300px;height: 24px;'>" +
            ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
    }
    else
        if (EQ(ctx.CurrentItem.PopularityPercent, 100)) {
            return "<li  title='بالاترین بازدید'  style='color:black;background-color: green;width: 300px;height: 24px;'>" +
                ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
        }
        else {
            return "<li title='نامعلوم'  style='color:navy;background-color: yellow;width: 300px;height: 24px;'>" +
                ctx.CurrentItem.Title + " – " + ctx.CurrentItem.PopularityPercent + "</li>";
        }
}

~site/_catalogs/masterpage/MyJsLinkSample.js

MethodA().MethodB().MethodC();

public class RepresentativeEmployeeQuery 
{ 
    public dynamic GetById(int id) 
    { 
        throw new NotImplementedException(); 
    } 
} 
public class RepresentativeQuery 
{ 
    public dynamic GetById(int id) 
    { 
        throw new NotImplementedException(); 
    } 
} 
public class CustomerQuery 
{ 
    public dynamic GetById(int id) 
    { 
        throw new NotImplementedException(); 
    } 
}

public static class Programm 
{ 
    static void Main(string[] args) 
    { 
        var customer = new CustomerQuery().GetById(1); 
        var representativeId = customer.RepresentativeId; 
        var representative = new RepresentativeQuery().GetById(representativeId); 
        var managerId = representative.ManagerId; 
        var manager  = new RepresentativeEmployeeQuery().GetById(managerId); 
        var managerName = manager.FullName; 
    } 
}

• کلاس CustomerQuery پرس و جوهای مربوط به مشتری را مدیریت می‌کند.
  
• کلاس RepresentativeQuery پرس و جوهای مربوط به نمایندگی را مدیریت می‌کند .
  
• کلاس RepresentativeEmployeeQuery پرس و جوهای مربوط به کارمندان نمایندگی را مدیریت می‌کند.