String.prototype.capitalize=function(){return this.charAt(0).toUpperCase()+this.slice(1);};
String.prototype.followCase=function(b){
	if(b==b.toUpperCase()){return this.toUpperCase();}
	if(b==b.toLowerCase()){return this.toLowerCase();}
	if(b==b.capitalize()){return this.capitalize();}
	return this;
};
String.prototype.atRemoveAdd=function(index,n,string){
	return this.substring(0,index)+string+this.substring(index+n,this.length);
};
String.prototype.matchIndex=function(re){
	var a=[];
	while((match=re.exec(this))!==null){
		a.push({chars:match[0].length,index:match.index});
	}
	return a;
};
String.prototype.caseReplace=function(o,n){
	for(var s=this,a=this.matchIndex(o),shift=0,i=0;i<a.length;i++){
		var c=n.followCase(this.substring(a[i].index,a[i].index+a[i].chars));
		s=s.atRemoveAdd(a[i].index+shift,a[i].chars,c);
		shift+=c.length-a[i].chars;
	}
	return s;
};

My code from 2016 for the hall of shame where I realized today that caseReplace could just return this.replace(o,m=>n.followCase(m)) instead.

By Anonymous, 2017-12-19 03:55:58
    function changePassword() {
        if (isInputEmpty()) {
            $.ajax({
                type: 'POST',
                data: '...'
                url: '...',
                success: function (result) {
                    if (result.substring(0, 3) != "!!!") {
                        //success
                    } else {
                        //faliure
                    }
                },
                error: function () {
                    }
            });
        }
    }

And of course,in production, it always reported success and never changed the password, because of equally bad server code.

By You will be proud of our code!, 2017-12-15 11:30:02
if (i === 1 || i === 2 || i === 3 || i === 4 || i === 5 || i === 6 || i === 7 || i === 8 || i === 9 || i === 10){
 return true;
}
By foxy, 2017-12-13 23:25:17
if (botCount < botCount)
    this.reconnect();
}

My friend wrote this code recently

By Anonymous, 2017-12-13 17:47:25
//Calculates x² of an integer up to ±1 million
var square = (function () {
	var s = "if(A==B){return C;}";
	var func = "var A=Math.abs(D|0);";
	for (var i = 0; i <= 1000000; i++) {
		func += s.replace(/B/, i).replace(/C/, i * i);
	}
	return new Function("D", func + "return Infinity;");
})();
By Anonymous, 2017-12-13 16:53:27
function isEmpty(value) {
    if (value === '') {
        return false;
    } else if (value === 0) {
        return false;
    } else if (value === null) {
        return false;
    } else if (value === undefined) {
        return false;
    } else {
        return true;
    }
    return true;
}

javascript empty value check

By mr.js, 2017-12-13 11:43:20
// 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
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
socket.on('newMessage', (messageObj) => {
	if (roomNumber === messageObj.roomNumber) {

		console.log("message received:" + messageObj.message);
		$('#messages').append($('<li>').text(messageObj.userName + ' : ' + messageObj.message));

	}
});

socket.in wasn't behaving as advertised (broadcasting to all rooms). I decided to take matters into my own hands.

By Andrew, 2017-12-13 02:57:58
if(typeof(sortOrder) != "boolean"){        
    return items;
}
filtered.sort(function (a, b) {
    if(sortOrder == true){
        return (CustomOrder(a.status) > CustomOrder(b.status) ? 1 : -1);
    }
    else if(sortOrder == false){
        return (CustomOrder(a.status) < CustomOrder(b.status) ? 1 : -1);
    }
});

The status property is a string ("Started", "Running", "Failed", "Finished", etc.), and CustomOrder is a function with a switch that just returns a predefined integer for each string. I switched CustomOrder to just be a simple lookup table object, and the sort call was changed to filtered.sort((a, b) => CustomOrder[a.status] - CustomOrder[b.status]);

By Anonymous, 2017-12-13 00:06:25
if (!String.prototype.replaceLast) {
        String.prototype.replaceLast = function(find, replace) {
            String.prototype.replaceLast = function (what, replacement) {
                var pcs = this.split(what);
                var lastPc = pcs.pop();
                return pcs.join(what) + replacement + lastPc;
            };
        };
    }

Prototypes are super buggy anyway, I should rewrite that as a pure function.

By Anonymous, 2017-12-12 18:21:40
$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(date.getFullYear() <= 2017) {
    if(date.getMonth() <= 11) {
        if(date.getDate() <= 26) {
            if(date.getHours() <= 23) {
                if(date.getMinutes() <= 59) {
                    if(date.getSeconds() <= 59) {
                        //Display popup before 2017-11-27
                    }
                }
            }
        }
    }
}

    
By Anonymous, 2017-12-12 14:14:55
if (currentDay.day() !== MONDAY) {
    do {
        currentDay = this.$moment(currentDay).subtract(1, 'days');
        days.unshift(currentDay);
    } while (currentDay.day() !== MONDAY);
}
By Anonymous, 2017-10-14 18:44:20
let showDots = typeof project.showDots === 'boolean' ? project.showDots : false;

if (showDots) {
    // Somecode ...
}

Why, just why??

By Anonymous, 2017-08-08 11:41:49