let already_in = True;
while (already_in) {
    let random_index = Math.floor(arr.length * Math.random());
    let already_in = False;
    for (ex of exs) {
        if (ex.id === arr[random_index].id) {
            already_in = True;
        }
    }
}

Yes, this is JavaScript, and yes it didn't work. Found while reviewing some code

By L., 2021-05-17 11:20:12
if HOST == 'AdaLovelace' or HOST == 'vbu' or HOST == 'asus':
    urlpatterns += patterns('',
        (r'^site_media/(?P<path>.*)$', 'django.views.static.serve', {'document_root': MEDIA_ROOT}),
    )
By Kadet, 2016-02-14 16:37:32
  ierr = pxmlIn->GetData(pcTag, *pTData);
  *pbDataValid = bool((ierr==0)&&(iLen>0));  // enabled if: not empty string and vaild (number?)
  if (*pbDataValid)  iErr += ierr;
By Anonymous, 2020-04-07 14:44:12
    if (model.env.Trim().ToUpper() == "Release")
    {
        retVal = false;
        if (!string.IsNullOrEmpty(model.Server_Core))
        {
            // Perform a trim in case user specified just whitespace...
            string tmpStr = model.Server_Core.Trim();
            if (!string.IsNullOrEmpty(tmpStr))
            {
                retVal = true;
            }
        }
    }
By Anonymous, 2019-02-25 17:12:31
try
{
    len = readBufferSize(reader);
}
catch (IOException xcp)
{
    throw xcp;
}

I swear I didn't omit a single symbol (except for tabs at the beginning)

By RusAD, 2019-07-18 09:24:10
from django.http import JsonResponse, HttpResponse
import requests

def download_custom_award(request):
    try:
        custom_img = requests.get(request.GET.get('award'))
        response = HttpResponse(custom_img.content, content_type='application/PNG')
        filename = "Your_Award.png"
        response['Content-Disposition'] = 'attachment; filename=%s' % (filename)
        return response
    except Exception as e:
        return JsonResponse({'Status': 404, "message": e.message})

This developer was trying to force the browser to download a custom image rather than show it inline, so he coded an open reverse proxy and attempted to release it to a production web app. Also, all exceptions are trapped and shown to the user in plaintext in their browser.

By Anonymous, 2020-05-26 10:38:31
#997 Java +16
final int two_fifty_five_hex = 0xFF
final int two_fifty_five_dec = 255

One is in hex but the other is in decimal! Watch out, make sure you use the correct 255, not the other 255.

By Anonymous, 2020-04-28 14:52:27
void MagicUnit::getSomeVoltage(std::uint64_t w_data, double &val)
{
    std::uint64_t r_data = 0;
    hwRead((int)Address::Voltage, 3, w_data, 2, &r_data);
    val = r_data;
    val /= 16; // shit right 4 bits
    val *= 0.004;
    val -= 8.192;
}
By Anonymous, 2019-03-11 08:43:52
scrollToEl($el.parent().parent().parent());

Someones idea of how to select an element to scroll to.... Please no.

By Anonymous, 2019-09-27 15:20:17
/// <summary>
/// Returns true if any component of of Vector3 v is negative
/// </summary>
public static bool Ext_IsNegative(this Vector3 v)
{
    return v.x < 0f && v.y < 0f && v.z < 0f;
}

Either the description is wrong or the method in itself

By SwagridOfficial, 2017-12-13 13:00:34
if (!response ||
    !response.data ||
    !response.data.success ||
    response.data.success == false ) {
        //process stuff
}

Not talking about the '===' warning, here

By Anonymous, 2020-12-02 12:31:00

    def dow_to_dict_from_self(self):
        # res = {'name': self.name, 'enabled': self.enabled }
        res = {'sun': 0, 'mon': 0, 'tue': 0, 'wed': 0, 'thr': 0, 'fri': 0,
               'sat': 0,
               'enabled': 0, 'dow': 0, 'name': 'untitled'}

        if (int(self.days_of_week) & 0x01) == 0x01:  # sun
            res['sun'] = 1
        if (int(self.days_of_week) & 0x02) == 0x02:  # mon
            res['mon'] = 1
        if (int(self.days_of_week) & 0x04) == 0x04:  # tue
            res['tue'] = 1
        if (int(self.days_of_week) & 0x08) == 0x08:  # wed
            res['wed'] = 1
        if (int(self.days_of_week) & 0x10) == 0x10:  # thr
            res['thr'] = 1
            res['thu'] = 1  # '%a' returns thu for Thursday
        if (int(self.days_of_week) & 0x20) == 0x20:  # fri
            res['fri'] = 1
        if (int(self.days_of_week) & 0x40) == 0x40:  # sat
            res['sat'] = 1
        if (int(
                self.days_of_week) & 0x40) == 0x80:  # enabled # new enable#
            # flag -- duplicate in db
            res['enabled'] = 1

        res['enabled'] = self.enabled  # remove this
        res['dow'] = self.days_of_week
        res['name'] = self.name

        return res

kept the original comments - they're very helpful

By Anonymous, 2018-07-11 19:40:44
public static function getUser(){
    return \App\Models\User::all();
}
By mamadSiah, 2022-02-23 14:35:19
Public Shared Function CompeleteDateStr(DateStr As String) As String
    'MBS 96-09-25: High Caliber DataEntry
    Dim DateVal = CType(DateStr, Integer)
    If DateVal < 1 Then Return ""
    If DateVal < maxDay Then 'DayOnly
        Return MakeJalaliDate(curYear, curMonth, DateVal, _4DigitYear)
    ElseIf DateVal > maxDay Then
        Dim YearPiece? As Short = Nothing, MonthPiece? As Byte = Nothing, DayPiece As Byte
        Select Case DateVal
            Case Is < 100
                MonthPiece = (DateVal \ 10) Mod 10
                DayPiece = DateVal Mod 10
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
            Case Is < 1000
                MonthPiece = DateVal \ 10
                DayPiece = DateVal Mod 10
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                MonthPiece = (DateVal \ 100) Mod 10
                DayPiece = DateVal Mod 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                DayPiece = DateVal \ 10
                MonthPiece = DateVal Mod 10
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                DayPiece = (DateVal \ 100) Mod 10
                MonthPiece = DateVal Mod 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
            Case Is < 10000
                MonthPiece = DateVal \ 100
                DayPiece = DateVal Mod 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                MonthPiece = DateVal Mod 100
                DayPiece = DateVal \ 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                DayPiece = DateVal \ 100
                MonthPiece = DateVal Mod 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                DayPiece = DateVal Mod 100
                MonthPiece = DateVal \ 100
                If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, curYear) Then Return MakeJalaliDate(curYear, MonthPiece, DayPiece, _4DigitYear)
                MonthPiece = (DateVal \ 10) Mod 10
                YearPiece = DateVal \ 100
                If IsValidMonth(MonthPiece) Then
                    DayPiece = DateVal Mod 10
                    If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                Else
                    MonthPiece = (DateVal \ 100) Mod 10
                    YearPiece = DateVal Mod 100
                    DayPiece = DateVal \ 1000
                    If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                End If
            Case Is < 100000
                Dim DaySize As Byte = 2
                MonthPiece = (DateVal Mod 1000) \ 10
                If Not IsValidMonth(MonthPiece) Then
                    MonthPiece = (DateVal \ 100) Mod 10
                    DaySize = 1
                    If Not IsValidMonth(MonthPiece) Then Return ""
                End If
                YearPiece = DateVal \ 1000
                DayPiece = DateVal Mod 10 ^ DaySize
                If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece)
                YearPiece = DateVal Mod 100
                DayPiece = DateVal \ (10000 \ (10 ^ DaySize))
                If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece)
            Case Is < 1000000
                MonthPiece = (DateVal Mod 10000) \ 100
                If IsValidMonth(MonthPiece) Then
                    YearPiece = DateVal \ 10000
                    DayPiece = DateVal Mod 100
                    If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                    YearPiece = DateVal Mod 100
                    DayPiece = DateVal \ 10000
                    If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                End If
                YearPiece = DateVal \ 100
                If YearPiece > 1300 AndAlso YearPiece < 1500 Then
                    MonthPiece = (DateVal \ 10) Mod 10
                    DayPiece = DateVal Mod 10
                    If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                End If
                YearPiece = DateVal Mod 10000
                If YearPiece > 1300 AndAlso YearPiece < 1400 Then
                    DayPiece = DateVal \ 100000
                    MonthPiece = (DateVal \ 10000) Mod 10
                    If IsValidMonth(MonthPiece) AndAlso IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece + If(_4DigitYear, 0, -1300), MonthPiece, DayPiece, _4DigitYear)
                End If
            Case Is < 10000000
                Dim DaySize As Byte = 2
                MonthPiece = (DateVal Mod 1000) \ 10
                If Not IsValidMonth(MonthPiece) Then
                    MonthPiece = (DateVal \ 100) Mod 10
                    DaySize = 2
                    If Not IsValidMonth(MonthPiece) Then Return ""
                End If
                YearPiece = DateVal \ 1000
                DayPiece = DateVal Mod 10 ^ DaySize
                If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece)
                YearPiece = DateVal Mod 10000
                DayPiece = DateVal \ (100000 * (10 ^ DaySize))
                If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece)
            Case Is < 100000000
                MonthPiece = (DateVal Mod 10000) \ 100 '13961229
                If IsValidMonth(MonthPiece) Then
                    YearPiece = DateVal \ 10000
                    DayPiece = DateVal Mod 100
                    If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                    YearPiece = DateVal Mod 10000
                    DayPiece = DateVal \ 1000000
                    If IsValidDay(DayPiece, MonthPiece, YearPiece) Then Return MakeJalaliDate(YearPiece, MonthPiece, DayPiece, _4DigitYear)
                End If
        End Select
        Return ""
    End If
End Function

this code is so wrong in so many different levels

By NoobProger, 2017-12-20 12:37:08
if (isLink($content[$i][$j])) {

					if (isImageLink($content[$i][$j])) {

						$image_src = create_image($content[$i][$j], "img");

						$cell = <<<HTML
							<td>
								<img {$image_src} {$img_style}></td></img>
							</td>
HTML;
					} else if (isNestedLink($content[$i][$j])) {

						$links = explode("!", $content[$i][$j]);

						$cell = <<<HTML
							<td><a style="color: {$cards_button_bg_color};" href="{$links[1]}" $open_links_in >{$links[0]}</a></td>
HTML;
					} else {
						
						//Checking if it's a link or a button

							if ($j == $table_button_column) {
														
							//Button HTML
								$table_button_text = explode("-", $content[0][$j])[0];

								$cell = <<<HTML
									<td><a {$open_links_in} href="{$content[$i][$j]}" style="background-color: {$cards_button_bg_color}; color: {$cards_button_text_color};" class="btn">{$table_button_text}</a></td>
HTML;
							} else {
							
							// Link HTML			
								$cell = <<<HTML
									<td><a style="color: {$cards_button_bg_color};" href="{$content[$i][$j]}" $open_links_in >{$content[0][$j]}</a></td>
HTML;
							}
					}
By PHPhillip, 2020-06-09 23:28:49