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

function atoi(charstring)
{
  if(charstring=="a") return 0x61;if(charstring=="b") return 0x62;
  if(charstring=="c") return 0x63;if(charstring=="d") return 0x64;
  if(charstring=="e") return 0x65;if(charstring=="f") return 0x66;
  if(charstring=="g") return 0x67;if(charstring=="h") return 0x68;
  if(charstring=="i") return 0x69;if(charstring=="j") return 0x6a;
  if(charstring=="k") return 0x6b;if(charstring=="l") return 0x6c;
  if(charstring=="m") return 0x6d;if(charstring=="n") return 0x6e;
  if(charstring=="o") return 0x6f;if(charstring=="p") return 0x70;
  if(charstring=="q") return 0x71;if(charstring=="r") return 0x72;
  if(charstring=="s") return 0x73;if(charstring=="t") return 0x74;
  if(charstring=="u") return 0x75;if(charstring=="v") return 0x76;
  if(charstring=="w") return 0x77;if(charstring=="x") return 0x78;
  if(charstring=="y") return 0x79;if(charstring=="z") return 0x7a;
  if(charstring=="0") return 0x30;if(charstring=="1") return 0x31;
  if(charstring=="2") return 0x32;if(charstring=="3") return 0x33;
  if(charstring=="4") return 0x34;if(charstring=="5") return 0x35;
  if(charstring=="6") return 0x36;if(charstring=="7") return 0x37;
  if(charstring=="8") return 0x38;if(charstring=="9") return 0x39;
  if(charstring==".") return 0x2e;
  return 0x20;
}

found in a proxy script

By Anonymous, 2020-08-10 03:17:52
<Image source={ this.props.pickupOrDropoff == "pickup"
                                    ? i.pickup
                                    ? iconBlue
                                    : iconWhite
                                    : i.dropoff 
                                    ? iconBlue
                                    : iconWhite} style={{
                                      height:this.props.pickupOrDropoff == "pickup"
                                    ? i.pickup
                                    ? 30
                                    : i.sign === 'D' ? 30 : 35
                                    : i.dropoff 
                                    ? 30
                                    : i.sign === 'D' ? 30 : 35,
                                    marginRight:10 ,
                                    width: this.props.pickupOrDropoff == "pickup"
                                    ? i.pickup
                                    ? 40
                                    : 40
                                    : i.dropoff 
                                    ? 40
                                    : 40
                                    ,resizeMode:'contain'}}/>

I love when the code is neat...

By Fluttershy, 2019-03-05 11:40:08
function sortUsers(a, b) {
  return a.last_name.localeCompare(b.last_name) * -1;
}
By Anonymous, 2018-03-06 22:44:30

var move=0;
var kier=0;
var pic=0;
var rol=0;

var rol2=171;
var rol3=343;
var rol4=514;
var rol2_cel=171;
var rol3_cel=343;
var rol4_cel=514;

function onpic(p) {
  pic=p;
}

function offpic(p) {
  if( pic==p ) pic=0;
}

 function next() { if(move<40) move = 40; kier=0; }
 function prev() { if(move<40) move = 60; kier=1; }
 function set() {
  document.getElementById('ba1').style.left=0;
  document.getElementById('ba2').style.left=rol2;
  document.getElementById('ba3').style.left=rol3;
  document.getElementById('ba4').style.left=rol4;
}


function SetOpacity(object,opacityPct)
{
  // IE.
  object.style.filter = 'alpha(opacity=' + opacityPct + ')';
  // Old mozilla and firefox
  object.style.MozOpacity = opacityPct/100;
  // Everything else.
  object.style.opacity = opacityPct/100;
}


var randtim=new Array(110,103,130,125,108,118,112,122,101,100);
var showtimer=0;
var showpic=1;

 
 function Animuj() {
   if( pic==0 ) {
     rol2_cel=171;
     rol3_cel=343;
     rol4_cel=514;
   } else if( pic==1 ) {
     rol2_cel=342;
     rol3_cel=457;
     rol4_cel=571;
   } else if( pic==2 ) {
     rol2_cel=115;
     rol3_cel=457;
     rol4_cel=571;
   } else if( pic==3 ) {
     rol2_cel=114;
     rol3_cel=229;
     rol4_cel=571;
   } else if( pic==4 ) {
     rol2_cel=114;
     rol3_cel=228;
     rol4_cel=344;
   }
   var a = (rol2-rol2_cel)/10; if(( a< -0.1 )&&( a> -1 )) a = -1; if(( a>0.1 )&&( a<1 )) a = 1;
   if( rol2!=rol2_cel ) rol2-= a;
   var a = (rol3-rol3_cel)/10; if(( a< -0.1 )&&( a> -1 )) a = -1; if(( a>0.1 )&&( a<1 )) a = 1;
   if( rol3!=rol3_cel ) rol3-= a;
   var a = (rol4-rol4_cel)/10; if(( a< -0.1 )&&( a> -1 )) a = -1; if(( a>0.1 )&&( a<1 )) a = 1;
   if( rol4!=rol4_cel ) rol4-= a;
   set();
    document.getElementById('ba2').style.left=rol2;



 showtimer+=1;
 if(showtimer>100) {
  for( st=0; st<9; ++st ) {
   if(showtimer==randtim[st]) { SetOpacity(document.getElementById("ps"+st), 0); document.getElementById("ps"+st).style.backgroundImage="url('cs/log"+showpic+".jpg')"; }
   if(showtimer==(randtim[st]+1)) SetOpacity(document.getElementById("ps"+st),20); 
   if(showtimer==(randtim[st]+2)) SetOpacity(document.getElementById("ps"+st),40); 
   if(showtimer==(randtim[st]+3)) SetOpacity(document.getElementById("ps"+st),60); 
   if(showtimer==(randtim[st]+4)) SetOpacity(document.getElementById("ps"+st),80); 
   if(showtimer==(randtim[st]+5)) { document.getElementById("pn"+st).style.backgroundImage="url('cs/log"+showpic+".jpg')"; SetOpacity(document.getElementById("ps"+st),0); }
  }
  if(showtimer>150) {
   showtimer=0;
   for( st=0; st<9; ++st ) randtim[st]=Math.floor(Math.random()*26)+100;
   showpic+=1; if(showpic>2) showpic=0;
  }
 }


 }

 window.setInterval("Animuj()", 50);

This is how public money is spent in poland

By Anonymous, 2019-05-29 18:35:09
function urlREPLACER(dtTEXTVALUE){
    
    dtTEXTVALUE.indexOf('http://') != -1 && (dtTEXTVALUE = dtTEXTVALUE.replace('http://','')) && dtTEXTVALUE.indexOf('.aspx') == -1 && (dtTEXTVALUE += '.aspx');
    
    return dtTEXTVALUE;
}
By I'm glad, 2019-02-16 13:10:54
// 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
'use strict'

// exports //

module.exports = Math.sqrt
By Igor, 2021-09-01 21:28:26
const ITEM_COUNT = 100
let visibleItems = []
for (let i = 0; i < ITEM_COUNT; ++i) {
  visibleItems.push(false)
}

function showItem(index) {
  visibleItems = []
  for (let i = 0; i < ITEM_COUNT; ++i) {
    visibleItems.push(false)
  }
  visibleItems[index] = true
}

It was more or less like this. The guy had a collection of React components and wanted to show only one of them at a time. Instead of storing the index of the component to show at the moment, he decided that a boolean array would work much better. O(n) in runtime and space and null readability just because.

By Anonymous, 2019-12-07 11:59:58
> var x = 3;
> '5' + x - x
50
> '5' - x + x
5 // Because fuck math

JS is simply. Oh, wait...

By mademan, 2015-11-18 13:50:39
 filterForProvincia() {
    console.log('ciao');
 }

The last line of code of a parting Developer

By Anonymous, 2019-07-23 11:31:51
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
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
const handleBoolean = value => {
        switch (value) {
            case "true":
                return true;
            case true:
                return "true";
            case "false":
                return false;
            case false:
                return "false"
            default:
                return null;
        }
    }
By Anonymous, 2021-09-29 11:53:22
$("#search-submit").click(function() {
  $("#search form").submit()
});

type="submit" is too mainstream, jquery is the proper way to do it

By Kadet, 2016-02-13 16:44:10