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 isAllowSearchLength(text) {
    return text.length > isNaN(parseInt(text, 10)) ? 1 : 0;
}
By Anonymous, 2018-01-24 12:02:46
this.props.HeaderStore.setHeader(true, null, false, false, true, true,'dashboardNavigation');
By Fluttershy, 2018-01-19 08:53:26
// What they did:
var serverCommands = {};
for(var each in commandList.general)
    (dmCommands[commandList.general[each].type] ? dmCommands[commandList.general[each].type] +=
    (config.prefix + each + (commandList.general[each].args ? ' ' + commandList.general[each].args : '') +
    ': ' + commandList.general[each].description + '\n') : (dmCommands[commandList.general[each].type] =
    '\u200B'+ config.prefix + each + (commandList.general[each].args ? ' ' + commandList.general[each].args : '') +
    ': ' + commandList.general[each].description + '\n'))

// What they should've done:
let srvrCmds = new Map();
let gldCmds = commandList[message.guild.id];
for (let each in gldCmds) {
    const cur = gldCmds[each];
    const text = `${config.prefix + each + (cur.args ? " " + cur.args : "")}: ${cur.description}\n`;
    const srvrCmdType = srvrCmds.get(cur.type);
    srvrCmds.set(cur.type, (srvrCmdType || "\u200B") + text);
}
By Anonymous, 2018-01-18 05:57:37
this.onSubmit = this.onSubmit.bind(this)
this.onClose = this.onClose.bind(this)

somewhere in react-native app

By fluttershy, 2018-01-08 08:01:40
// Method put on each input component to unregister
  // itself from the form
  detachFromForm: function detachFromForm(component) {
    var componentPos = this.inputs.indexOf(component);

    if (componentPos !== -1) {
      this.inputs = this.inputs.slice(0, componentPos).concat(this.inputs.slice(componentPos + 1));
    }

    this.validateForm();
  },

oh boy

By Anonymous, 2017-12-21 10:48:00
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