Why doesn't this simple jQuery ajax work? - ajax

Why doesn't this simply jQuery ajax code not load pull.php into the div with id of #alert?
...
<script src="jquery.js"></script>
<script>
$(document).ready(function() {
$(".pull_button").click(function() {
$("#alert").load("pull.php");
});
});
</script>
</head>
<body>
<div id="#alert"></div>
<nav>
<a class="pull_button">Pull Data</a>
</nav>
...


Take the # out of <div id="#alert">.
<div id="alert"> -> $('#alert')
<div class="alert"> -> $('.alert')

Related

CKEditor math formula rendering on target div

I am trying to add math formula in ckeditor, from editor should collect entire information(including formula) display on the same page in different div.
When I do with the following approach it is displaying math formula as text(not formatting as formula).
<html>
<head>
<script src="https://cdn.ckeditor.com/4.8.0/full-all/ckeditor.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML"></script>
<script>
function onSubmit(){
var data = CKEDITOR.instances.editor1.getData()
document.getElementById("show").innerHTML=data
}
</script>
</head>
<body>
<form action="#" >
<textarea rows="20" cols="70" class="ckeditor" id="editor1" name="test1">
</textarea>
<input type="button" value="save" onclick="onSubmit()" >
</form>
<div id="show" id='ed2'></div>
<script>
CKEDITOR.replace( 'editor1', {
extraPlugins: 'mathjax',
mathJaxLib: 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML',
height: 320
} );
if ( CKEDITOR.env.ie && CKEDITOR.env.version == 8 ) {
document.getElementById( 'ie8-warning' ).className = 'tip alert';
}
</script>
</body>
</html>

It is faster and easier to use Katex rather than Mathjax for math formula rendering in Html.
For reference(Comparison between katex and latex ) :
https://www.intmath.com/cg5/katex-mathjax-comparison.php
So the solution by using katex will be :
<!DOCTYPE html>
<head>
<script src="https://cdn.ckeditor.com/4.8.0/full-all/ckeditor.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex#0.10.0-beta/dist/katex.min.css" integrity="sha384-9tPv11A+glH/on/wEu99NVwDPwkMQESOocs/ZGXPoIiLE8MU/qkqUcZ3zzL+6DuH"
crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/katex#0.10.0-beta/dist/katex.min.js" integrity="sha384-U8Vrjwb8fuHMt6ewaCy8uqeUXv4oitYACKdB0VziCerzt011iQ/0TqlSlv8MReCm"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/katex#0.10.0-beta/dist/contrib/auto-render.min.js" integrity="sha384-aGfk5kvhIq5x1x5YdvCp4upKZYnA8ckafviDpmWEKp4afOZEqOli7gqSnh8I6enH"
crossorigin="anonymous"></script>
<script>
function onSubmit() {
var data = CKEDITOR.instances.editor1.getData()
document.getElementById("show").innerHTML = data
domChanged();
}
</script>
</head>
<body>
<form action="#">
<textarea rows="20" cols="70" class="ckeditor" id="editor1" name="test1">
</textarea>
<input type="button" value="save" onclick="onSubmit()">
</form>
<div id="show" id='ed2'></div>
<script>
CKEDITOR.replace('editor1', {
extraPlugins: 'mathjax',
mathJaxLib: 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML',
height: 320
});
if (CKEDITOR.env.ie && CKEDITOR.env.version == 8) {
document.getElementById('ie8-warning').className = 'tip alert';
}
function domChanged() {
renderMathInElement(document.body);
}
</script>
</body>
</html>
Good luck !!!

access items in a nested list in angularJS

I am new to AngularJS and i need your help. I have created a JSON file which consists of a list of items inside another list. I want to access the items in the second list but I don't know how. I have searched all day in the Internet but I hardly found anything useful. Please help me. Below is my code:
categoryItems.json
[
{
"$id":"1",
"name":"Business",
"cat":[
{
"cname":"CyberSecurity",
"img":"img3_1.jpg",
"cat_kurs":"7-course specialization",
"txt":"Rice University"
},
{
"cname":"Google Cloud Platform for Systems Operations",
"img":"img3_2.jpg",
"cat_kurs":"6-course specialization",
"txt":"University of California"
},
{
"cname":"Data Security",
"img":"img3_1.jpg",
"cat_kurs":"7-course specialization",
"txt":"Rice University"
}
]
},
{
"$id":"2",
"name":"Foreign Language",
"cat":[
{
"cname":"Data Security",
"img":"img3_1.jpg",
"cat_kurs":"7-course specialization",
"txt":"Rice University"
},
{
"cname":"Google Cloud",
"img":"img3_2.jpg",
"cat_kurs":"3-course specialization",
"txt":"University of California"
}
]
}
]
script.js
var myItemsApp = angular.module('myItemsApp', []);
myItemsApp.factory('itemsFactory', ['$http', function($http){
var itemsFactory ={
itemDetails: function() {
return $http(
{
url: "categoryItems.json",
method: "GET",
})
.then(function (response) {
return response.data;
angular.forEach(data.itemDetails, function(item) {
});
});
}
};
return itemsFactory;
}]);
myItemsApp.controller('ItemsController', ['$scope', 'itemsFactory', function($scope, itemsFactory){
var promise = itemsFactory.itemDetails();
promise.then(function (data) {
$scope.itemDetails = data;
console.log(data);
});
$scope.select = function(item) {
$scope.selected = item;
};
$scope.selected = {};
}]);
index.html
<!DOCTYPE html>
<html ng-app="myItemsApp">
<head>
<meta charset="utf-8" />
<title>Test</title>
<!-- <link data-require="bootstrap-css" data-semver="3.1.1" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />-->
<link href="css/bootstrap.min.css" rel="stylesheet" media="screen" />
<link href="css/bootstrap-theme.min.css" rel="stylesheet" media="screen"/>
<script src="js/angular.min.js"></script>
<script src="js/angular.js"></script>
<script src="script.js"></script>
<style>
span.el{
background-color:#85929E;
font-size: xx-small;
font-color: #FDFEFE;
width: 60px;
}
span.txt{
font-size:xx-small;
}
div.cat{
background-color:#F2F3F4 ;
}
</style>
</head>
<body>
<div ng-controller="ItemsController">
<div class="row">
<div class="col-md-4">
<div class="panel panel-default">
<ul class="list-group">
<a class="list-group-item" ng-click="select(item)" ng-repeat="item in itemDetails">{{item.name}}</a>
</ul>
</div>
</div>
<div class="col-md-8">
<div class="panel panel-default" style="width: 70%">
<div class="panel-heading">{{selected.name}}</div>
<div class="panel-body">
<div ng-repeat="subcat in item.cat ">
{{subcat.cname}}
</div>
</div>
</div>
</div>
</div>
</body>
</html>
Please HELP ME.

Looks like you need todo another ng-repeat on the sub categories.
<div class="col-md-8" ng-show="selected.name.length">
<div class="panel panel-default" style="width: 70%">
<div class="panel-heading">{{selected.name}}</div>
<div class="panel-body">
<div ng-repeat="subcat in itemDetails | filter:{name:selected.name}">
<div ng-repeat="cat in subcat.cat">
{{cat.cname}}
</div>
</div>
</div>
</div>
Have a look at this example ive mocked up for you

You need to deserialize the response using angular.fromJson
more reference: https://docs.angularjs.org/api/ng/function/angular.fromJson

Ajax auto refresh - Not effecting scrolling

I am using ajax to auto refresh a div tag using this code in my index.php file:
<script type="text/javascript">
$(document).ready(function() {
$.ajaxSetup({ cache: false });
setInterval(function() {
$('#messanges').load('messanges.php');
}, 1000);
});
</script>
<div id="messanges"></div>
<textarea name="chat_input" id="chat_input"></textarea>
In messanges.php I have a auto scroll down code.
Cause I want it to start at the bottom when entering the chat.
<head>
<script>
var chat_height = $('#chat').outerHeight();
$('#chat_box').scrollTop(chat_height);
</script>
</head>
<div id="chat_box" style="height:700px; overflow:auto">
<div id="chat">
<div id="Name">Test user:</div>
<div id="img"><img src="picture.png" /></img></div>
<p class="triangle-isosceles left">
"Test" </p>
</div>
The code is now forcing the scroll to stay at the bottom because of the ajax auto refresh.
How can I make it auto refresh, but if I want to scroll up it will not force me down when it refresh?

try some like this
<head>
<script>
var chat_height = $('#chat').outerHeight();
if($('.doScroll').is(':checked'))
{
$('#chat_box').scrollTop(chat_height);
}
</script>
</head>
<input type="checkbox" class="doScroll" checked />
<div id="chat_box" style="height:700px; overflow:auto">
<div id="chat">
<div id="Name">Test user:</div>
<div id="img"><img src="picture.png" /></img></div>
<p class="triangle-isosceles left">"Test" </p>
</div>

two jqgrid no data loaded

When I duplicate a working grid with a different id, data are not loaded in both grid.
Both grids are shown and they both query the same url. Json data is sent from php but data is not loaded into grid.
If i comment any of the grids, the other one loads data properly.
Any help greatly appreciated. I'm using jqgrid 4.4.1
Here is my code
<div class="row-fluid">
<script type="text/javascript" language="javascript">
function LoadgridInput () {
jQuery('#gridInput').jqGrid({
height:100,
hoverrows:false,
viewrecords:true,
caption:" ",cellEdit: true,rowNum:10000,
scroll:1,
rowList:[30,100,500],
datatype:"json",
url:"grid.php?sec=Agility&fn=gcSandFInput_V1",
cellurl:"grid.php?sec=Agility&fn=gcSandFInput_V1",
editurl:"grid.php?sec=Agility&fn=gcSandFInput_V1",
sortname:"default",
autowidth:true,
shrinkToFit:true,
gridview:false,
pager:"#gridInputPager",
postData:{oper:"grid"},
jsonReader:{repeatitems:false,root: "rows",page: "page",total: "total",records: "records",repeatitems: true,cell: "cell",id: "id",userdata: "userdata"},
colModel:[
{name:" ",index:"nope",align:"left",search:true,editable:false,width:60},{name:"04-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"05-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"06-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"07-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"08-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"09-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"10-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"11-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"12-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"01-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"02-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"03-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"04-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"05-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"06-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"07-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"08-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"09-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"10-2013",index:"nope",align:"left",search:true,editable:false,width:60 }]})
jQuery('#gridInput').jqGrid('navGrid','#gridInputPager',{refresh:true,edit:false,add:false,del:false,search:true,view:false,"excel":true,"pdf":false,"csv":false,"columns":false},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"errorTextFormat":function(r){ return r.responseText;}},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"errorTextFormat":function(r){ return r.responseText;}},{"errorTextFormat":function(r){ return r.responseText;}}, {"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"closeAfterSearch":true,"multipleSearch":false},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150});
};
</script>
<script type="text/javascript" language="javascript"> runOnLoad(LoadgridInput); </script>
<div id="gridInputWrapper">
<table id="gridInput"></table> <div id="gridInputPager"></div>
<div class="gridInputFooter"></div>
</div>
</div>
<div class="row-fluid">
<script type="text/javascript" language="javascript">
function LoadgridList () {
jQuery('#gridList').jqGrid({
height:100,
hoverrows:false,
viewrecords:true,
caption:" ",cellEdit: true,rowNum:10000,
scroll:1,
rowList:[30,100,500],
datatype:"json",
url:"grid.php?sec=Agility&fn=gcSandFInput_V1",
cellurl:"grid.php?sec=Agility&fn=gcSandFInput_V1",
editurl:"grid.php?sec=Agility&fn=gcSandFInput_V1",
sortname:"default",
autowidth:true,
shrinkToFit:true,
gridview:false,
pager:"#gridListPager",
postData:{oper:"grid"},
jsonReader:{repeatitems:false,root: "rows",page: "page",total: "total",records: "records",repeatitems: true,cell: "cell",id: "id",userdata: "userdata"},
colModel:[
{name:" ",index:"nope",align:"left",search:true,editable:false,width:60},{name:"04-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"05-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"06-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"07-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"08-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"09-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"10-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"11-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"12-2012",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"01-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"02-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"03-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"04-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"05-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"06-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"07-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"08-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"09-2013",index:"nope",align:"left",search:true,editable:false,width:60 },{name:"10-2013",index:"nope",align:"left",search:true,editable:false,width:60 }]})
jQuery('#gridList').jqGrid('navGrid','#gridListPager',{refresh:true,edit:false,add:false,del:false,search:true,view:false,"excel":true,"pdf":false,"csv":false,"columns":false},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"errorTextFormat":function(r){ return r.responseText;}},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"errorTextFormat":function(r){ return r.responseText;}},{"errorTextFormat":function(r){ return r.responseText;}}, {"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150,"closeAfterSearch":true,"multipleSearch":false},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150},{"drag":true,"resize":true,"closeOnEscape":true,"dataheight":150});
};
</script>
<script type="text/javascript" language="javascript">runOnLoad(LoadgridList);</script>
<div id="gridListWrapper">
<table id="gridList"></table> <div id="gridListPager"></div>
<div class="gridListFooter"></div>
</div>
</div>

Updating div elements in Twitter Bootstrap

I tried to write an AJAX-type form with Twitter Bootstrap, but the updated div element disappears. Can I fix that?
<!DOCTYPE html>
<html>
<head><link href="bootstrap.min.css" rel="stylesheet" media="screen"></head>
<script>
function wordCloud(){document.getElementById("cloud").innerHTML = "WordCloud";}
</script>
<body>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="bootstrap.min.js"></script>
<div id="cloud"></div>
<form onsubmit="wordCloud()">
<fieldset>
<button type="submit" class="btn">Submit</button>
</fieldset>
</form></body>
</html>

Change as follows.
function wordCloud(){document.getElementById("cloud").innerHTML = "WordCloud";}
replace
function wordCloud(){document.getElementById("cloud").innerHTML = "WordCloud"; return false; }
and
<form onsubmit="wordCloud()">
replace
<form onsubmit="return wordCloud()">

Resources