function uploadimg(file) {
    var ext = file.value.split('.').pop().toLowerCase();
    var size = document.getElementById("uploadpic").files.item(0).size;

    if (size > 3145728) {
        $.messager.alert({
            title: "Error",
            msg: " image to large",
            icon: "error"
        });
        return true;
    }

    return false;
}

var reader = new FileReader();
$("#uploadpic").change(function() {
    var pdfcheck = this;
    var ext = pdfcheck.value.split('.').pop().toLowerCase();
    if (!($.inArray(ext, ['pdf']) == -1)) {
        console.log('upload pdf start');
        if (uploadPdf(pdfcheck)) {
            $("#preview_img").attr("src", "");
            $("#preview_img2").attr("src", "");
            $("#uploadpic").prop("file", "");
            $("#uploadpic").val("");
        }
    } else {
        if (uploadimg(pdfcheck)) {//dude, I think the image you upload to check is your dick, only small enough you would rather keep going producing shitcode.
            return false;
        }
        var upload_file = $("#uploadpic")[0].files[0];
        if (upload_file != null) {
            var chimgarr = ["image/png", "image/PNG", "image/jpg", "image/JPG", "image/jpeg", "image/JPEG", "image/gif", "image/GIF", "image/bmp", "image/BMP"];
            if (chimgarr.indexOf(upload_file.type) != "-1") {
                reader.readAsDataURL(upload_file);
                reader.onload = function(e) {
                    $("#preview_img").attr("src", e.target.result);
                    $("#preview_img2").attr("src", e.target.result);
                    $("#pdf-contents").hide();
                    $("#pdf_name").val("");
                    $("#btn_pdf_view").hide();
                    $("#pic_name").val("");
                }
            } else {
                $.messager.alert("Image format does not match");
                $("#preview_img").attr("src", "");
                $("#preview_img2").attr("src", "");
                $("#uploadpic").prop("file", "");
                $("#uploadpic").val("");
            }
        } else {
            $("#preview_img").attr("src", "");
            $("#preview_img2").attr("src", "");
        }
    }
});

The moment an important image ready to be uploaded It's really important that should be checked again and again.

By shitcode master's friend, 2018-04-20 11:03:15
function isAllowSearchLength(text) {
    return text.length > isNaN(parseInt(text, 10)) ? 1 : 0;
}
By Anonymous, 2018-01-24 12:02:46
for(var j=0;j<10;j++){
    cell=document.createElement('td');
    switch(j)
    {
        case 0: 
            var date1 = events[i]['start'];
            var date2 = events[i]['end'];
            cell.appendChild(document.createTextNode(date1.getFullYear()+'/'+date1.getMonth()+'/'+date1.getDate()+' '+date1.getHours()+':'+date1.getMinutes()+' To '+date2.getFullYear()+'/'+date2.getMonth()+'/'+date2.getDate()+' '+date2.getHours()+':'+date2.getMinutes())); 
            break;
        case 1: cell.appendChild(document.createTextNode(events[i]['title'])); break;
        case 2: cell.appendChild(document.createTextNode(events[i]['description'])); break;
    }
    row.appendChild(cell);
}

The for loop that counts to 10, but the last seven elements are completely useless.

By Anonymous, 2017-12-13 07:16:36
function formatUpToANumberOfZeroesAfterFloatingPoint(number, numberOfZeroes, floatingPointSymbol) {
    numberOfZeroes = (numberOfZeroes === undefined || numberOfZeroes < 0) ? 2 : numberOfZeroes;
    floatingPointSymbol = floatingPointSymbol === undefined ? '.' : floatingPointSymbol;
    let numberSplitByFloatingPoint = number.toString().split(floatingPointSymbol);
    if (numberSplitByFloatingPoint.length !== 2) 
        return `${number}${floatingPointSymbol}${'0'.repeat(+numberOfZeroes)}`;
    
    let numberAfterFloatingPoint = numberSplitByFloatingPoint[1].toString();
    let formattedNumber = `${numberSplitByFloatingPoint[0]}`;
    let numberAfterFloatingPointLength = numberAfterFloatingPoint.toString().length;
    if (+numberOfZeroes > +numberAfterFloatingPointLength) 
        return `${formattedNumber}${floatingPointSymbol}${numberAfterFloatingPoint}${'0'.repeat(+numberOfZeroes - numberAfterFloatingPointLength)}`;
    
    let countOfNumbersAfterFloatingPoint = numberAfterFloatingPointLength;
    for (var i = numberAfterFloatingPointLength - 1; i >= 0; i--) {
        if (+(numberAfterFloatingPoint[i]) !== 0 || +countOfNumbersAfterFloatingPoint === +numberOfZeroes) {
            formattedNumber += `${floatingPointSymbol}${numberAfterFloatingPoint.substring(0, countOfNumbersAfterFloatingPoint)}`;
            break;
        }
        
        countOfNumbersAfterFloatingPoint--;
    }

    return formattedNumber;
}

Well, a junior dev here. A cute female QA came to me with a request - "the field for the price already has precision up to 4 decimal places, but we don't like the 4 ugly zeroes, so if the number ends in zeroes, let it have only 2" - she said in the most innocent-like tone ever known to mankind. How easy I mumbled and accepted the task. As she was leaving she added - "oo almost forgot, we also would like it if all the data fields for the price that are shown in the tables also are formatted that way". As I was watching her better side, while she was getting reunited with her QA tribe, I got shivers down the spine. I had a bad feeling about that one, but I wasn't sure why yet. Suddenly as I was getting up to get a cup of coffe, it dawned on me - "this poor excuse for a project is using jqGrid for displaying the data". To wrap things up - I got a quadruple espresso with a shot of Jacky, developers best friend in a time of need, and came up with this piece of art. Enjoy :)

By Kristopher Alexander, 2019-04-25 15:49:53
function downScaleCanvas(a, b) {
    var c = Math.ceil,
        d = Math.floor;
    if (!(1 > b) || !(0 < b)) throw "scale must be a positive number <1 ";
    var e = b * b,
        f = a.width,
        g = a.height,
        h = d(f * b),
        i = d(g * b),
        j = 0,
        k = 0,
        l = 0,
        m = 0,
        n = 0,
        o = 0,
        p = 0,
        q = 0,
        r = 0,
        s = 0,
        t = 0,
        u = 0,
        v = 0,
        x = 0,
        y = 0,
        z = !1,
        A = !1,
        B = a.getContext("2d").getImageData(0, 0, f, g).data,
        C = new Float32Array(3 * h * i),
        D = 0,
        E = 0,
        F = 0;
    for (k = 0; k < g; k++)
        for (n = k * b, r = 0 | n, o = 3 * r * h, A = r != (0 | n + b), A && (x = r + 1 - n, y = n + b - r - 1), j = 0; j < f; j++, l += 4) m = j * b, q = 0 | m, p = o + 3 * q, z = q != (0 | m + b), z && (u = q + 1 - m, v = m + b - q - 1), D = B[l], E = B[l + 1], F = B[l + 2], z || A ? z && !A ? (s = u * b, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = v * b, C[p + 3] += D * t, C[p + 4] += E * t, C[p + 5] += F * t) : A && !z ? (s = x * b, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = y * b, C[p + 3 * h] += D * t, C[p + 3 * h + 1] += E * t, C[p + 3 * h + 2] += F * t) : (s = u * x, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = v * x, C[p + 3] += D * t, C[p + 4] += E * t, C[p + 5] += F * t, t = u * y, C[p + 3 * h] += D * t, C[p + 3 * h + 1] += E * t, C[p + 3 * h + 2] += F * t, t = v * y, C[p + 3 * h + 3] += D * t, C[p + 3 * h + 4] += E * t, C[p + 3 * h + 5] += F * t) : (C[p] += D * e, C[p + 1] += E * e, C[p + 2] += F * e);
    var G = document.createElement("canvas");
    G.width = h, G.height = i;
    var H = G.getContext("2d"),
        I = H.getImageData(0, 0, h, i),
        J = I.data,
        K = 0;
    for (l = 0, p = 0; K < h * i; l += 3, p += 4, K++) J[p] = c(C[l]), J[p + 1] = c(C[l + 1]), J[p + 2] = c(C[l + 2]), J[p + 3] = 255;
    return H.putImageData(I, 0, 0), G
}

dohhhhhh !!

By fotogena.co sonickseven, 2019-10-13 00:10:25
const errorHandler = () => {
  throw new Error();
};
By Anonymous, 2018-10-08 19:35:38
o.isInsured = function ()
{ return !!this.insured; }

Why don't be like normal people and use bool() cast?

By Anonymous, 2018-09-22 14:31:37
// Is this valid?
function validateStockInItems() {
    if (stockInItemsToUpdate.length === 0)
        return true;
    return true;
}

Found in a legacy code base for a stock management system. I will be rewriting said system soon.

By Anonymous, 2017-12-13 09:15:42
var filter = options.dataSource.filter();

if(e.filter) {
   filter = filter && filter.filters.length ? filter.filters.concat(e.filter.filter) : e.filter.filters;
}
else {
   filter = filter && filter.filters.length ? filter.filters.linqRemove({ field: e.field }) : [];
}
options.dataSource.filter(filter);
By Anonymous, 2018-02-09 19:03:07
function focused(evt, errors) {
	let form = evt.target

	const output = errors.map((error)=> {

		// Find first component with error on form and set focus to it

		let focusedInput = (Object.keys(error) == "phonebookId") ? Object.keys(error) :
			(Object.keys(error) == "phonebook_str") ? Object.keys(error) :
				(Object.keys(error) == "message") ? Object.keys(error) :
					(Object.keys(error) == "image") ? Object.keys(error) :
						(Object.keys(error) == "buttonLink") ? Object.keys(error) :
							(Object.keys(error) == "messageSms") ? Object.keys(error) : false
		return focusedInput.shift()
	})

	const selector = output.shift()
	form.querySelector('[id="' + selector + '"]').focus()

	return selector
}

What can I say... If you plan to work with freelancers with low rate then you should be ready to find it in them code :)

By Ya, 2016-10-02 12:16:46
function returnTrue() {
    return true;
}
By Anonymous, 2019-12-19 19:41:56
$scope.$$childHead.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling.$$nextSibling

Was trying to find a very specific text box and as an AngularJS noob, this was the only way I could find it at first. I eventually figured out how to not do this before it ever got committed to production though. :)

By Anonymous, 2017-12-12 16:47:10
if(wyraz.charAt(i) <"A" 
        && wyraz.charAt(i) != "-" 
            && wyraz.charAt(i)  != " " 
                && wyraz.charAt(i) != "." 
                    && wyraz.charAt(i) != "&" 
                        && wyraz.charAt(i) != "_" 
                            && wyraz.charAt(i) != "\"" 
                                && wyraz.charAt(i) != "'" 
                
) {                
    if(polska_litera(wyraz.charAt(i) ) == 0 ) 
                return NO; 
}
if(wyraz.charAt(i) >"Z" 
           && wyraz.charAt(i) != "-" 
                && wyraz.charAt(i)  != " " 
                    && wyraz.charAt(i) != "." 
                        && wyraz.charAt(i) != "&" 
                            && wyraz.charAt(i) != "_" 
                                && wyraz.charAt(i) != "\""
                                    && wyraz.charAt(i) != "'"
)

Just PKP :)

By Slacki, 2015-07-20 22:43:47
var show = true;

function toggleShow(){
    if(show === true){
        show = false;
        return show;
    }else{
        show = true;
        return show;
    }
}

return show = !show, dude...

By Anonymous, 2017-07-14 09:50:57
        var u = "Browser";
        if (this.isIPad) {
            u = "iPad"
        } else {
            if (this.isDDGIgnore) {
                u = "Ignore"
            } else {
                if (/seamonkey/.test(x)) {
                    u = "SeaMonkey"
                } else {
                    if (/iceape/.test(x)) {
                        u = "Iceape"
                    } else {
                        if (/palemoon/.test(x)) {
                            u = "PaleMoon"
                        } else {
                            if (this.isFirefox) {
                                u = "Firefox"
                            } else {
                                if (this.isAndroid) {
                                    u = "Android"
                                } else {
                                    if (/xbox/.test(x)) {
                                        u = "xBox"
                                    } else {
                                        if (/midori/.test(x)) {
                                            u = "Midori"
                                        } else {
                                            if (/opr/.test(x)) {
                                                u = "Opera"
                                            } else {
                                                if (/maxthon/.test(x)) {
                                                    u = "Maxthon"
                                                } else {
                                                    if (this.isYandex) {
                                                        u = "Yandex"
                                                    } else {
                                                        if (/vivaldi/.test(x)) {
                                                            u = "Vivaldi"
                                                        } else {
                                                            if (this.isChrome) {
                                                                u = "Chrome"
                                                            } else {
                                                                if (/fennec/.test(x)) {
                                                                    u = "Fennec"
                                                                } else {
                                                                    if (/epiphany/.test(x)) {
                                                                        u = "Epiphany"
                                                                    } else {
                                                                        if (this.isFirefox) {
                                                                            u = "Firefox"
                                                                        } else {
                                                                            if (/uzbl/.test(x)) {
                                                                                u = "Uzbl"
                                                                            } else {
                                                                                if (this.isEdge) {
                                                                                    u = "Edge"
                                                                                } else {
                                                                                    if (this.isIE && navigator.platform === "Win64" && !k() && Modernizr.touch && document.documentElement.clientWidth == screen.width) {
                                                                                        u = "IEMetro"
                                                                                    } else {
                                                                                        if (this.isIE) {
                                                                                            u = "IE"
                                                                                        } else {
                                                                                            if (this.isOpera) {
                                                                                                u = "Opera"
                                                                                            } else {
                                                                                                if (this.isIPhone) {
                                                                                                    u = "iPhone"
                                                                                                } else {
                                                                                                    if (/arora/.test(x)) {
                                                                                                        u = "Arora"
                                                                                                    } else {
                                                                                                        if (this.isSafari) {
                                                                                                            u = "Safari"
                                                                                                        } else {
                                                                                                            if (this.isKonqueror) {
                                                                                                                u = "Konqueror"
                                                                                                            } else {
                                                                                                                if (this.isBlackberry) {
                                                                                                                    u = "Blackberry"
                                                                                                                } else {
                                                                                                                    if (/phantomjs/.test(x)) {
                                                                                                                        u = "PhantomJS"
                                                                                                                    } else {
                                                                                                                        if (this.isIDevice) {
                                                                                                                            u = "iOS"
                                                                                                                        }
                                                                                                                    }
                                                                                                                }
                                                                                                            }
                                                                                                        }
                                                                                                    }
                                                                                                }
                                                                                            }
                                                                                        }
                                                                                    }
                                                                                }
                                                                            }
                                                                        }
                                                                    }
                                                                }
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

Found when looking at facebook.com code and formatting using google chrome developer tools.

By jcubic, 2017-01-03 18:38:30