We Keep Coding

It always show either one output, either it highlight the keywords or only the alert box,how to achieve both at the same time

//grab all div elements in the pages;
let elt = document.getElementsByTagName("div");
var i;
var b = [];
b[0] = "password";
b[1] = "update";
b[2] = "account";
b[3] = "blocked";
b[4] = "alert";
b[5] = "confirm";
b[6] = "cash";
b[7] = "extra";
b[8] = "subscribe";
b[9] = "sample";
b[10] = "winner";
b[11] = "offer";
b[12] = "promotion";
b[13] = "urgent";
b[14] = "action";
b[15] = "update";
b[16] = "luxury";
b[17] = "limited";
b[18] = "login";
b[19] = "alert";
b[20] = "income";
b[21] = "bonus";
b[22] = "verify";
b[23] = "banking";
b[24] = "lowest";
b[25] = "deal";
b[26] = "unusual log in activity";
function scanDOM() {
//loop for html elements;
for (i = 0; i < elt.length; i++) {
var singleDiv = elt[i];
//loop for keywords;
for (j = 0; j < b.length; j++) {
var str = singleDiv.innerHTML;
if (str.indexOf(b[j]) > -1) {
//if found that the keywords match with the one in array, it will highlight the words;
str = str.replace(b[j], '<span style="background-color:#f6ff00;">' + b[j] + '</span>');
singleDiv.innerHTML = str;
popup();
}
}
}
}
// scan through the pages every 5 seconds;
setInterval(scanDOM, 5000);
//alert message;
function popup() {
alert * ("**WARNING!**");*
}

Javascript object that takes another object's property as parameter changes it somehow

I've been working on a Math Parser project. I'm almost finished but I encountered a problem that I couldn't find the reason for it.
I've got 3 javascript files:
main.js
var button1 = document.getElementById("button");
var text1 = document.getElementById("text");
var output = document.getElementById("result");
button1.addEventListener("click", function(){
var textInput = text1.value;
var cleared = new clearingUnwantedCharacters(textInput);
var marked = new subgroupMarking(cleared.output);
var prioritizedList = new subgroupPrioritization(marked.parenGroups);
for(var i = 0; i <= 360; i++){
var splittedPieces = new splittingOperators(prioritizedList.prioritizedGroups);
var calculatedPieces = new calculatePieces(splittedPieces.seperatedPieces, i, true);
console.log(calculatedPieces.result);
}
});
objects.js
function clearingUnwantedCharacters(inputText){
this.output = inputText;
this.output = this.output.replace(/\s+/g, '');
this.output = this.output.toLowerCase();
}
function subgroupMarking(inputText){
this.parenGroups = [inputText];
this.locLeftParen = markChar(this.parenGroups[0], "(");
this.locRigthParen = markChar(this.parenGroups[0], ")");
for(var i = this.locLeftParen.length-1; i >= 0; i--){
var leftParen = this.locLeftParen[i];
var rightParen = this.locRigthParen.find(function(res){return res > leftParen});
this.parenGroups[i+1] = this.parenGroups[0].substring(leftParen+1, rightParen);
this.parenGroups[0] = changeAt(this.parenGroups[0], leftParen, rightParen+1, "{_"+(i+1)+"}");
this.locLeftParen = markChar(this.parenGroups[0], "(");
this.locRigthParen = markChar(this.parenGroups[0], ")");
}
}
function subgroupPrioritization(subgroupList){
var withParenGroup = [];
var withoutParenGroup = [];
for(var i = 0; i < subgroupList.length; i++){
var content = subgroupList[i].toString();
var hasParenGroup = content.search(/{_\d+}/g);
if(hasParenGroup == -1){
withoutParenGroup.push(content);
}else{
withParenGroup.push(content);
}
}
this.prioritizedGroups = withParenGroup.concat(withoutParenGroup);
}
function splittingOperators(prioritizedGroupList){
this.seperatedPieces = [];
for(var i = prioritizedGroupList.length-1; i >= 0; i--){
var pieces = prioritizedGroupList[i].split(/(\+|\*|\/|\^|\b(?=-)|(?<=})(?=-))/g);
for(var k = 0; k < pieces.length; k++){
if(pieces[k] == ""){
pieces[k] = "+";
}
}
this.seperatedPieces.unshift(pieces);
}
}
function calculatePieces(pieceList, x, degreeOption){
this.result = pieceList;
for(var i = this.result.length-1; i >= 0; i--){ // ["34", "+", "2{_2}"]
for(var k = 0; k < this.result[i].length; k++){ // 34, +, 2{_2}
var specialFlag = false;
var totalMultiplication = (countChar(this.result[i][k], "-")%2 == 0) ? 1 : -1;
var has = {
x : this.result[i][k].includes("x"),
subgroup : (this.result[i][k].search(/{_\d+}/g) != -1),
logarithm : this.result[i][k].includes("log"),
trigonometry : (this.result[i][k].includes("sin") || this.result[i][k].includes("cos") || this.result[i][k].includes("tan") || this.result[i][k].includes("cot"))
};
if(has.trigonometry){
specialFlag = true;
var trigSubgroupIndexes = [];
var trigTypes = [];
var trigsMultiplied = 1;
this.result[i][k] = this.result[i][k].replace(/(?:arc)?(sin|cos|tan|cot){_(\d+)}/g, function(match, type, index){
trigSubgroupIndexes.push(parseInt(index));
if(match.includes("arc")){
trigTypes.push([true, type]);
}else{
trigTypes.push([false, type]);
}
return " ";
});
for(var l = 0; l < trigTypes.length; l++){
var inverseness = trigTypes[l][0];
var type = trigTypes[l][1];
var parameter = (degreeOption) ? convertToRadian(parseFloat(this.result[trigSubgroupIndexes[l]])) : parseFloat(this.result[trigSubgroupIndexes[l]]);
var result;
if(inverseness){
switch(type){
case "sin":
result = Math.asin(parameter);
break;case "cos":
result = Math.acos(parameter);
break;case "tan":
result = Math.atan(parameter);
break;case "cot":
result = 1 / Math.atan(parameter);
break;
}
}else{
switch(type){
case "sin":
result = Math.sin(parameter);
break;case "cos":
result = Math.cos(parameter);
break;case "tan":
result = Math.tan(parameter);
break;case "cot":
result = 1 / Math.tan(parameter);
break;
}
}
trigsMultiplied *= result;
}
totalMultiplication *= trigsMultiplied;
}
if(has.logarithm){
specialFlag = true;
var logSubgroupIndexes = [];
var logsMultiplied = 1;
this.result[i][k] = this.result[i][k].replace(/log{_(\d+)}{_(\d+)}/g, function(match, firstIndex, secondIndex){
logSubgroupIndexes.push([parseInt(firstIndex), parseInt(secondIndex)]);
return " ";
});
for(var l = 0; l < logSubgroupIndexes.length; l++){
var base = this.result[logSubgroupIndexes[l][0]];
var power = this.result[logSubgroupIndexes[l][1]];
logsMultiplied *= (Math.log(power) / Math.log(base));
}
totalMultiplication *= logsMultiplied;
}
if(has.subgroup){
specialFlag = true;
var subgroupIndexes = [];
var groupsMultiplied = 1;
this.result[i][k] = this.result[i][k].replace(/{_(\d+)}/g, function(match, index){
subgroupIndexes.push(parseInt(index));
return " ";
});
for(var l = 0; l < subgroupIndexes.length; l++){
groupsMultiplied *= this.result[subgroupIndexes[l]];
}
totalMultiplication *= groupsMultiplied;
}
if(has.x){
specialFlag = true;
var powerX = countChar(this.result[i][k], "x");
this.result[i][k] = this.result[i][k].replace("x", " ");
totalMultiplication *= Math.pow(x, powerX);
}
if(specialFlag == true){
var factors = this.result[i][k].match(/\d+/g);
if(factors !== null){
for(var l = 0; l < factors.length; l++){
totalMultiplication *= parseFloat(factors[l]);
}
}
if(!isFinite(totalMultiplication) || checkNum(this.result[i][k]) || this.result[i][k].includes("(") || this.result[i][k].includes(")")){
this.result[i][k] = NaN;
}else{
this.result[i][k] = totalMultiplication;
}
}
}
var operators = ["^","*","/","+","-"];
for(var k = 0; k < operators.length; k++){
var search = this.result[i].indexOf(operators[k]);
while(search != -1){
switch(operators[k]){
case "+":
this.result[i].splice(search-1, 3, checkParse(this.result[i][search-1]) + checkParse(this.result[i][search+1]));
break;case "-":
this.result[i].splice(search-1, 3, checkParse(this.result[i][search-1]) - checkParse(this.result[i][search+1]));
break;case "*":
this.result[i].splice(search-1, 3, checkParse(this.result[i][search-1]) * checkParse(this.result[i][search+1]));
break;case "/":
this.result[i].splice(search-1, 3, checkParse(this.result[i][search-1]) / checkParse(this.result[i][search+1]));
break;case "^":
this.result[i].splice(search-1, 3, Math.pow(checkParse(this.result[i][search-1]) , checkParse(this.result[i][search+1])));
break;
}
if(this.result[i].indexOf(operators[k], search) == -1){
break;
}else{
search = this.result[i].indexOf(operators[k], search);
}
}
}
}
if(isNaN(this.result[0][0])){
this.result = "An error has occured, please make sure the parameters are correct.";
}else{
this.result = this.result[0][0];
}
}
functions.js
function countChar(str, character){
return str.toString().split(character).length-1;
}
function markChar(str, character){
var charCount = str.split(character).length;
var result = [];
for(var i = 0; i < charCount - 1; i++){
if(result.length == 0){
result.push(str.indexOf(character));
}else{
result.push(str.indexOf(character, result[i-1] + 1));
}
}
return result;
}
function changeAt(str, startingIndex, endingIndex, replacement){ // Returns the given string with the part between startingIndex and endingIndex replaced with replacement.
return str.substring(0, startingIndex) + replacement + str.substring(endingIndex, str.length);
}
function checkParse(str){
if(/[a-z]/.test(str) || countChar(str, ".") > 1){
return NaN;
}else{
return parseFloat(str);
}
}
function checkNum(str){
return (/[a-z]/.test(str) || countChar(str, ".") > 1);
}
function convertToRadian(degrees) {
return degrees * Math.PI / 180;
}
It works as intended when done like above. It puts values to x according to the range specified in the for loop in main.js and console.logs the results. But I don't want to create splittingOperators object everytime I recalculate with another x value. It's unnecessary since the actual formula stays the same.
var button1 = document.getElementById("button");
var text1 = document.getElementById("text");
var output = document.getElementById("result");
button1.addEventListener("click", function(){
var textInput = text1.value;
var cleared = new clearingUnwantedCharacters(textInput);
var marked = new subgroupMarking(cleared.output);
var prioritizedList = new subgroupPrioritization(marked.parenGroups);
var splittedPieces = new splittingOperators(prioritizedList.prioritizedGroups);
for(var i = 0; i <= 360; i++){
var calculatedPieces = new calculatePieces(splittedPieces.seperatedPieces, i, true);
console.log(calculatedPieces.result);
}
});
When I put the object creation outside of the for loop, it calculates and logs the first x value, but it gives
Uncaught TypeError: this.result[i][k].includes is not a function
as error after that. I suspect it's because it changes splittedPieces.seperatedPieces when it shouldn't. I couldn't find any reason for it to do that or maybe I am missing something.

Javascript with localstorage check

var site = document.getElementById('display').innerHTML =
document.getElementById("site").value;
var link = document.getElementById('displayy').innerHTML =
document.getElementById("link").value;
var t = true;
var both = [site,link];
while (t == true){
var s = 0;
var y = 0;
var check = localStorage.getItem(y);
if (check === null){
localStorage.setItem(s , both);
alert(y);
break;
} else {
var s = s + 1;
var y = y + 1;
localStorage.setItem(s , both);
}
}
Javascript should check if 0 = emty if so then add it to localstorarge if no check 1 check 2 check 3 etc. I get the data from html.

Choosing most liked post from facebook group

Well, here is the json file http://herbalista.hol.es/group.json i am working with JSON.parse(); on Google apps script. I temporarily solve with this code by Choosing the post which have more than 15 likes, but i want to choose the one with more likes independently if have or not more than 15 likes.
function repost() {
var UsrAccess_token = "xxxxxxxxx"
var graph = "https://graph.facebook.com/xxxxxx/feed/?access_token="+UsrAccess_token+"";
var jsondata = UrlFetchApp.fetch(graph,{method:"get"}).getContentText();
var object = JSON.parse(jsondata);
var item = object.data;
var currentTime = new Date();
var year = currentTime.getUTCFullYear();
var month = (currentTime.getUTCMonth()) + 1;
var day = (currentTime.getUTCDate()) - 1;
if (day <= 9) {var day = "0"+day+"";}
if (month <= 9) {var month = "0"+month+"";}
var utime = ""+year+"-"+month+"-"+day+"T";
try {
var i = null;
for (i = 0; item.length > i; i += 1) {
var pubDate = item[i].created_time;
if (pubDate.match(utime)) { var likesdata = item[i].likes.data; var len = likesdata.length;
if (len > 15) {var popular = item[i].link;}}
}} catch(err) {
var err = "ERROR";
}
}

For this you can Choose a default value for a variable like var maxLikes = 0; and verify against len variable.
The code would be something like this:
function repost() {
var UsrAccess_token = "xxxxxxxxx"
var graph = "https://graph.facebook.com/xxxxxx/feed/?access_token="+UsrAccess_token+"";
var jsondata = UrlFetchApp.fetch(graph,{method:"get"}).getContentText();
var object = JSON.parse(jsondata);
var item = object.data;
var currentTime = new Date();
var year = currentTime.getUTCFullYear();
var month = (currentTime.getUTCMonth()) + 1;
var day = (currentTime.getUTCDate()) - 1;
if (day <= 9) {var day = "0"+day+"";}
if (month <= 9) {var month = "0"+month+"";}
var utime = ""+year+"-"+month+"-"+day+"T";
try {
var i = null;
var maxLikes = 0;
for (i = 0; item.length > i; i += 1) {
var pubDate = item[i].created_time;
if (pubDate.match(utime)) {
var likesdata = item[i].likes.data;
var len = likesdata.length;
if (len > maxLikes) {
maxLikes = len;
var popular = item[i].link;
}
}
}
} catch(err) {
var err = "ERROR";
}
}
Hope that helps!

Codeigniter Auto completion is not working

Hello Auto completion is not working well in my application.When we type a name it displays only a blank list[ Screenshots attached ].
Controller Code
public function list_UserByName($letters)
{
if(strpos($letters, ","))
{
$letters1 = explode(",",$letters);
$lecount = count($letters1);
$letters = $letters1[$lecount-1];
}
$letters = preg_replace("/[^a-z0-9 ]/si","",$letters);
$response=$this->user_model->getAutoUserList($letters);
}
Model Code
public function getAutoUserList($letters)
{
$letters = preg_replace("/[^a-z0-9 ]/si","",$letters);
//AND user_type='C' AND user_status='A'
$query="select * from gm_users where uname Like '%$letters%'";
$result_query =$this->db->query($query);
foreach($result_query->result() as $result)
{
//echo "###".$result."|";
//$pinlevel =$this->functions->get_pinlevel($result->pinLevel);
//echo $result->userId."###".$result->uname." [ ".$pinlevel." ] "."|";
echo $result->userId."###".$result->uname."".$result->address." ".$result->city."|";
}
}
billing.php
<input type="text" autocomplete="off" size="20" name="txtname" id="txtname" onkeyup="ajax_showOptions(this,'getCountriesByLetters',event);" value=""/>
ajax-dynamic-list.js
/************************************************************************************************************
(C) www.dhtmlgoodies.com, April 2006
This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.
Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.
Thank you!
www.dhtmlgoodies.com
Alf Magne Kalleland
************************************************************************************************************/
var ajaxBox_offsetX = 25;
var ajaxBox_offsetY = 5;
var ajax_list_externalFile = site_url+'/catalog/list_UserByName'; // Path to external file
var minimumLettersBeforeLookup = 1; // Number of letters entered before a lookup is performed.
var ajax_list_objects = new Array();
var ajax_list_cachedLists = new Array();
var ajax_list_activeInput = false;
var ajax_list_activeItem;
var ajax_list_optionDivFirstItem = false;
var ajax_list_currentLetters = new Array();
var ajax_optionDiv = false;
var ajax_optionDiv_iframe = false;
var ajax_list_MSIE = false;
if(navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('Opera')<0)ajax_list_MSIE=true;
var currentListIndex = 0;
function ajax_getTopPos(inputObj)
{
var returnValue = inputObj.offsetTop;
while((inputObj = inputObj.offsetParent) != null){
returnValue += inputObj.offsetTop;
}
return returnValue;
}
function ajax_list_cancelEvent()
{
return false;
}
function ajax_getLeftPos(inputObj)
{
var returnValue = inputObj.offsetLeft;
while((inputObj = inputObj.offsetParent) != null)returnValue += inputObj.offsetLeft;
return returnValue;
}
// Edited
function ajax_option_setValue_bkp(e,inputObj)
{
if(!inputObj)inputObj=this;
var tmpValue = inputObj.innerHTML;
//alert(inputObj.id);
document.getElementById('saleUserId').value=inputObj.id;
if(ajax_list_MSIE)tmpValue = inputObj.innerText;else tmpValue = inputObj.textContent;
if(!tmpValue)tmpValue = inputObj.innerHTML;
val = ajax_list_activeInput.value.split(',');
vals = '';
count = val.length - 1;
for(i=0;i<count;i++)
{
vals = vals + val[i] + ',';
}
ajax_list_activeInput.value = vals + tmpValue;
if(document.getElementById(ajax_list_activeInput.name + '_hidden'))document.getElementById(ajax_list_activeInput.name + '_hidden').value = inputObj.id;
ajax_options_hide();
}
function ajax_option_setValue(e,inputObj)
{
if(!inputObj)inputObj=this;
var tmpValue = inputObj.innerHTML;
//alert(inputObj.id);
document.getElementById('saleUserId').value=inputObj.id;
if(ajax_list_MSIE)tmpValue = inputObj.innerText;else tmpValue = inputObj.textContent;
if(!tmpValue)tmpValue = inputObj.innerHTML;
ajax_list_activeInput.value = tmpValue;
if(document.getElementById(ajax_list_activeInput.name + '_hidden'))document.getElementById(ajax_list_activeInput.name + '_hidden').value = inputObj.id;
ajax_options_hide();
}
function ajax_options_hide()
{
if(ajax_optionDiv)ajax_optionDiv.style.display='none';
if(ajax_optionDiv_iframe)ajax_optionDiv_iframe.style.display='none';
}
function ajax_options_rollOverActiveItem(item,fromKeyBoard)
{
if(ajax_list_activeItem)ajax_list_activeItem.className='optionDiv';
item.className='optionDivSelected';
ajax_list_activeItem = item;
if(fromKeyBoard){
if(ajax_list_activeItem.offsetTop>ajax_optionDiv.offsetHeight){
ajax_optionDiv.scrollTop = ajax_list_activeItem.offsetTop - ajax_optionDiv.offsetHeight + ajax_list_activeItem.offsetHeight + 2 ;
}
if(ajax_list_activeItem.offsetTop<ajax_optionDiv.scrollTop)
{
ajax_optionDiv.scrollTop = 0;
}
}
}
function ajax_option_list_buildList(letters,paramToExternalFile)
{
ajax_optionDiv.innerHTML = '';
ajax_list_activeItem = false;
if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length<=1){
ajax_options_hide();
return;
}
ajax_list_optionDivFirstItem = false;
var optionsAdded = false;
for(var no=0;no<ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length;no++){
if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()][no].length==0)continue;
optionsAdded = true;
var div = document.createElement('DIV');
var items = ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()][no].split(/###/gi);
if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length==1 && ajax_list_activeInput.value == items[0]){
ajax_options_hide();
return;
}
div.innerHTML = items[items.length-1];
div.id = items[0];
div.className='optionDiv';
div.onmouseover = function(){ ajax_options_rollOverActiveItem(this,false) }
div.onclick = ajax_option_setValue;
if(!ajax_list_optionDivFirstItem)ajax_list_optionDivFirstItem = div;
ajax_optionDiv.appendChild(div);
}
if(optionsAdded){
ajax_optionDiv.style.display='block';
if(ajax_optionDiv_iframe)ajax_optionDiv_iframe.style.display='';
ajax_options_rollOverActiveItem(ajax_list_optionDivFirstItem,true);
}
}
function ajax_option_list_showContent(ajaxIndex,inputObj,paramToExternalFile,whichIndex)
{
if(whichIndex!=currentListIndex)return;
var letters = inputObj.value;
var content = ajax_list_objects[ajaxIndex].response;
var elements = content.split('|');
//alert(content);
ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()] = elements;
ajax_option_list_buildList(letters,paramToExternalFile);
}
function ajax_option_resize(inputObj)
{
ajax_optionDiv.style.top = (ajax_getTopPos(inputObj) + inputObj.offsetHeight + ajaxBox_offsetY) + 'px';
ajax_optionDiv.style.left = (ajax_getLeftPos(inputObj) + ajaxBox_offsetX) + 'px';
if(ajax_optionDiv_iframe){
ajax_optionDiv_iframe.style.left = ajax_optionDiv.style.left;
ajax_optionDiv_iframe.style.top = ajax_optionDiv.style.top;
}
}
function ajax_showOptions(inputObj,paramToExternalFile,e)
{
document.getElementById('saleUserId').value='';
if(e.keyCode==13 || e.keyCode==9)return;
if(ajax_list_currentLetters[inputObj.name]==inputObj.value)return;
if(!ajax_list_cachedLists[paramToExternalFile])ajax_list_cachedLists[paramToExternalFile] = new Array();
ajax_list_currentLetters[inputObj.name] = inputObj.value;
if(!ajax_optionDiv){
ajax_optionDiv = document.createElement('DIV');
ajax_optionDiv.id = 'ajax_listOfOptions';
document.body.appendChild(ajax_optionDiv);
if(ajax_list_MSIE){
ajax_optionDiv_iframe = document.createElement('IFRAME');
ajax_optionDiv_iframe.border='0';
ajax_optionDiv_iframe.style.width = ajax_optionDiv.clientWidth + 'px';
ajax_optionDiv_iframe.style.height = ajax_optionDiv.clientHeight + 'px';
ajax_optionDiv_iframe.id = 'ajax_listOfOptions_iframe';
document.body.appendChild(ajax_optionDiv_iframe);
}
var allInputs = document.getElementsByTagName('INPUT');
for(var no=0;no<allInputs.length;no++){
if(!allInputs[no].onkeyup)allInputs[no].onfocus = ajax_options_hide;
}
var allSelects = document.getElementsByTagName('SELECT');
for(var no=0;no<allSelects.length;no++){
allSelects[no].onfocus = ajax_options_hide;
}
var oldonkeydown=document.body.onkeydown;
if(typeof oldonkeydown!='function'){
document.body.onkeydown=ajax_option_keyNavigation;
}else{
document.body.onkeydown=function(){
oldonkeydown();
ajax_option_keyNavigation() ;}
}
var oldonresize=document.body.onresize;
if(typeof oldonresize!='function'){
document.body.onresize=function() {ajax_option_resize(inputObj); };
}else{
document.body.onresize=function(){oldonresize();
ajax_option_resize(inputObj) ;}
}
}
if(inputObj.value.length<minimumLettersBeforeLookup){
ajax_options_hide();
return;
}
ajax_optionDiv.style.top = (ajax_getTopPos(inputObj) + inputObj.offsetHeight + ajaxBox_offsetY) + 'px';
ajax_optionDiv.style.left = (ajax_getLeftPos(inputObj) + ajaxBox_offsetX) + 'px';
if(ajax_optionDiv_iframe){
ajax_optionDiv_iframe.style.left = ajax_optionDiv.style.left;
ajax_optionDiv_iframe.style.top = ajax_optionDiv.style.top;
}
ajax_list_activeInput = inputObj;
ajax_optionDiv.onselectstart = ajax_list_cancelEvent;
currentListIndex++;
if(ajax_list_cachedLists[paramToExternalFile][inputObj.value.toLowerCase()]){
ajax_option_list_buildList(inputObj.value,paramToExternalFile,currentListIndex);
}else{
var tmpIndex=currentListIndex/1;
ajax_optionDiv.innerHTML = '';
var ajaxIndex = ajax_list_objects.length;
ajax_list_objects[ajaxIndex] = new sack();
var search_key = inputObj.value.replace(" ","+");
//search_key1 = search_key.replace(",",",");
var url = ajax_list_externalFile + '/' +search_key;
ajax_list_objects[ajaxIndex].requestFile = url; // Specifying which file to get
ajax_list_objects[ajaxIndex].onCompletion = function(){ ajax_option_list_showContent(ajaxIndex,inputObj,paramToExternalFile,tmpIndex); }; // Specify function that will be executed after file has been found
ajax_list_objects[ajaxIndex].runAJAX(); // Execute AJAX function
}
}
function wordcount(string) {
var a = string.split(/\s+/g); // split the sentence into an array of words
return a.length;
}
function ajax_option_keyNavigation(e)
{
if(document.all)e = event;
if(!ajax_optionDiv)return;
if(ajax_optionDiv.style.display=='none')return;
if(e.keyCode==38){ // Up arrow
if(!ajax_list_activeItem)return;
if(ajax_list_activeItem && !ajax_list_activeItem.previousSibling)return;
ajax_options_rollOverActiveItem(ajax_list_activeItem.previousSibling,true);
}
if(e.keyCode==40){ // Down arrow
if(!ajax_list_activeItem){
ajax_options_rollOverActiveItem(ajax_list_optionDivFirstItem,true);
}else{
if(!ajax_list_activeItem.nextSibling)return;
ajax_options_rollOverActiveItem(ajax_list_activeItem.nextSibling,true);
}
}
/*if(e.keyCode==13 || e.keyCode==9){ // Enter key or tab key
if(ajax_list_activeItem && ajax_list_activeItem.className=='optionDivSelected')ajax_option_setValue(false,ajax_list_activeItem);
if(e.keyCode==13)return false; else return true;
}
if(e.keyCode==27){ // Escape key
ajax_options_hide();
}*/
}
//document.documentElement.onclick = autoHideList;
function autoHideList(e)
{
if(document.all)e = event;
if (e.target) source = e.target;
else if (e.srcElement) source = e.srcElement;
if (source.nodeType == 3) // defeat Safari bug
source = source.parentNode;
if(source.tagName.toLowerCase()!='input' && source.tagName.toLowerCase()!='textarea')ajax_options_hide();
}
Am a beginner in php as well as Codeigniter

Just echo your data in your controller
change
$response=$this->user_model->getAutoUserList($letters);
To
echo $this->user_model->getAutoUserList($letters);

change
onkeyup="ajax_showOptions(this,'getCountriesByLetters',event);
to
onkeyup="ajax_showOptions(this,'list_UserByName',event);
there is a question on this topic on stackoverflow, but an entire different process.
My Codeigniter autocomplete with ajax