I have 1 site under foo.com/test1/test1.html and another at foo.com/test2/test2.html
test1.html looks like this:
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script>
document.ready = function(){
var name = localStorage.getItem("name");
if(name){
console.log("name is defined");
}else{
console.log("name is not defined");
localStorage.setItem("name", "test1");
}
$('#name').text(name);
}
</script>
</head>
<body>
<p id="name"></p>
</body>
</html>
And test2.html is like this:
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script>
document.ready = function(){
var name = localStorage.getItem("name");
if(name){
console.log("name is defined");
}else{
console.log("name is not defined");
localStorage.setItem("name", "test2");
}
$('#name').text(name);
}
</script>
</head>
<body>
<p id="name"></p>
</body>
</html>
My question is that is it possible to achieve that that if I go to test1, the value of name is "test1" and if I go to test2 the name will be test2. Basically I suspect that I need to name them differently but I rather not do that. Is there any good work around for this?
Thank you in advance.
local storage is defined per domain. You should keep objects in localstorage to maintain page context.
Here is solution to do it.
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script>
document.ready = function(){
var thispage = JSON.parse(localStorage.getItem("page1"));
if(thispage.name){
console.log("name is defined");
}else{
console.log("name is not defined");
var obj={name : "test1"}
localStorage.setItem("page1", JSON.stringify(obj));
}
}
</script>
</head>
<body>
<p id="name"></p>
</body>
</html>
similar to all pages.
Related
<!DOCTYPE html>
<html>
<head>
<title>The jQuery AJAX Example</title>
<script type = 'text/javascript'
src = 'https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js'></script>
<script type = 'text/javascript' language = 'javascript'>
$.getJSON('https://api.flickr.com/services/feeds/photos_public.gne?tags=frenchay,uwe&tagmode=any&format=json&jsoncallback=?',
function(data){
$.each(data.items, function(i,item){
$('<img/>').attr('src', item.media.m).appendTo('#images');
if ( i == 10 ) return false;
});
});
</script>
</head>
<body>
<h3>Flickr (images tagged with uwe or frenchay)</h3>
<div id = 'images'>
</div>
</body>
</html>
Hello I am trying to run this code:
<!DOCTYPE html>
<html>
<head>
<title>The jQuery AJAX Example</title>
<script type = 'text/javascript'
src = 'https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js'></script>
<script type = 'text/javascript' language = 'javascript'>
$.getJSON('https://api.flickr.com/services/feeds/photos_public.gne?tags=frenchay,uwe&tagmode=any&format=json&jsoncallback=?',
function(data){
$.each(data.items, function(i,item){
$('<img/>').attr('src', item.media.m).appendTo('#images');
if ( i == 10 ) return false;
});
});
</script>
</head>
<body>
<h3>Flickr (images tagged with uwe or frenchay)</h3>
<div id = 'images'>
</div>
</body>
</html>
If I try to run it on my own machine with xampp on my mac it will not show the photos it is like something about jquery is missing on my laptop.
The code runs in jsfiddle.
For future searches I've attached the solved result here, tightening up the spaces between = and "" fixed it for the original poster of the issue:
<!DOCTYPE html>
<html>
<head>
<title>The jQuery AJAX Example</title>
<script type='text/javascript'
src='https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js'></script>
<script type='text/javascript' language='javascript'>
$.getJSON('https://api.flickr.com/services/feeds/photos_public.gne?tags=frenchay,uwe&tagmode=any&format=json&jsoncallback=?',
function(data){
$.each(data.items, function(i,item){
$('<img/>').attr('src', item.media.m).appendTo('#images');
if ( i == 10 ) return false;
});
});
</script>
</head>
<body>
<h3>Flickr (images tagged with uwe or frenchay)</h3>
<div id='images'>
</div>
</body>
</html>
I have a script:
<script src="http://192.168.0.187:3004/socket.io/socket.io.js"></script>
The IP Address is subject to change which I have no control of, so I'm thinking of having the IP dynamic.
Like this:
<script src="http://" + location.host + "/socket.io/socket.io.js"></script>
But of course this doesn't work.
I did however came across this:
<script type="text/javascript" src="">
document.getElementsByTagName("script")[0].src += "http://" + location.host + "/socket.io/socket.io.js";
</script>
But still doesn't work. This is not my strongest point so, any clue?
EDIT:
Here is the sample of my html:
<!DOCTYPE html>
<html>
<head>
<title>SAMPLE</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script id="script" src=""></script>
<script type="text/javascript">
document.getElementById("script").src = "http://" + location.host + "/socket.io/socket.io.js";
</script>
<link rel="stylesheet" href="/styles.css">
</head>
<body bgcolor="#ffffff">
<table id="table" border=1>
<thead>
<th><center>Sample</center></th>
<th></th>
</thead>
<tbody id="online"></tbody>
</table>
<script>
var ipServer = location.host;
var socket = io.connect('ws://' + ipServer);
</script>
</body>
</html>
This is call dynamically loading javascript:
var script = document.createElement('script');
script.setAttribute( 'src', 'socket.io.js');
document.head.appendChild(script);
//script that use socket.io
But there's another problem that you don't know when the script is fully loaded. If you call a function is defined in external script before it's loaded, it's error!
var script = document.createElement('script');
script.onload = function () {
//script that use socket.io
};
script.setAttribute( 'src', 'socket.io.js');
document.head.appendChild(script);
And we can make a utility function:
function loadScript(scriptPath, callback) {
var script= document.createElement('script');
script.setAttribute('src', scriptPath);
script.onload = callback();
document.head.appendChild(s);
};
loadScript('socket.io.js', function() {
//script that use socket.io
});
OR you can use jQuery $.getScript():
$.getScript('socket.io.js', function(data, textStatus, jqxhr) {
//script that use socket.io
});
For more information: https://api.jquery.com/jquery.getscript/
PS: with your code, it will be like this:
<!DOCTYPE html>
<html>
<head>
<title>SAMPLE</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script id="script" src=""></script>
<!--<script type="text/javascript">-->
<!--document.getElementById("script").src = "https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.1.1/socket.io.js";-->
<!--</script>-->
<!--<link rel="stylesheet" href="/styles.css">-->
</head>
<body bgcolor="#ffffff">
<table id="table" border=1>
<thead>
<th><center>Sample</center></th>
<th></th>
</thead>
<tbody id="online"></tbody>
</table>
<script>
var script = document.createElement('script');
script.onload = function () {
var ipServer = location.host;
var socket = io.connect('ws://' + ipServer);
};
script.setAttribute( 'src', 'https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.1.1/socket.io.js');
document.head.appendChild(script);
</script>
</body>
</html>
You can use document write to load the script.
<script type='text/javascript'>
var script = '<script type="text/javascript" src="http://' + location.host + '/socket.io/socket.io.js"><\/script>';
document.write(script);
</script>
You have the right idea; the problem is that you can't combine an external script (using src) with an inline one.
You simply need two different scripts for this, making sure the inline one comes after the reference to an external script:
<script src=""></script>
<script type="text/javascript">
document.getElementsByTagName("script")[0].src = "http://" + location.host + "/socket.io/socket.io.js";
</script>
I am trying to set atributes for my div from Json, but i cannot get it to work. Writing the values manually works, but not when setting them. i cannot figure out what i am doing wrong.
This is my code:
<html>
<head>
<title>ThingSpeak Live Colours</title>
<link rel="stylesheet" href="css/jquery.mobile.structure-1.4.5.min.css" />
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">
var Temp;
var Humidity;
var Light;
$(document).ready(function () {
$.getJSON('http://api.thingspeak.com/channels/200101/feed/last.json', null, function (data) {
Temp = data["field1"];
Humidity = data["field2"];
Light = data["field3"];
var PreviewGaugeMeter_1 = document.getElementById("PreviewGaugeMeter_1");
var Data_percent_1 = PreviewGaugeMeter_1.getAttribute("data-percent");
PreviewGaugeMeter_1.setAttribute("data-percent", Temp);
});
});
</script>
</head>
<body>
<div class="GaugeMeter" id="PreviewGaugeMeter_1" data-percent="" data-append="%" data-size="90" data-theme="Green-Gold-Red" data-animate_gauge_colors="1" data-animate_text_colors="1" data-width="9" data-label="" data-style="Arch" data-label_color="fff"></div>
</html>
And this my JSON output:
{"created_at":"0016-12-12T00:00:00Z","entry_id":37,"field1":" 4","field2":" 7","field3":"4"}
I found a workaround, by getting "$.getJSON" to send variables to another webpage, from there i used $_GET, to retrieve them from the url, and it works.
I'm an angular beginner and it does not seem to respond to me. I'm trying to to a simple ng-click to add and subtract to a counter. I get his error:
Error: [ng:areq] http://errors.angularjs.org/1.3.15/ng/areq?p0=FirstController&p1=not%20a%20function%2C%20got%20undefined...
this is index.html:
controller.js:
var app = angular.module('app', []);
app.controller('FirstController', function($scope) {
$scope.word = "ever";
$scope.counter = 0;
$scope.add = function(amount) {
$scope.counter += amount;
};
$scope.subtract = function(amount) {
$scope.counter -= amount;
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<!DOCTYPE html>
<html ng-app>
<head>
<title>Simple App</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>
</head>
<body>
<div ng-controller="FirstController">
<h4>The simplest adding machine ever</h4>
<button ng-click="add(1)" class="button">Add</button>
<a ng-click="subtract(1)" class="button alert">Subtract</a>
<h4>Current count: {{ counter }}</h4>
</div>
<script type="text/javascript" src="js/controller.js"></script>
</body>
</html>
Any help will be appreciated. Thanks
I think you forgot to specify what app you use , try the following code :
<html ng-app="app">
Check this it seems your missing the ng-app inclusion in the html
<html>
<head>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js#1.3.1" data-semver="1.3.1" src="//code.angularjs.org/1.3.1/angular.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="test">
<div trans-directive></div>
<h1>Hello Plunker!</h1>
<div ng-controller="trans">
<h4>The simplest adding machine ever</h4>
<button ng-click="add(1)" class="button">Add</button>
<button ng-click="subtract(1)" class="button alert">Subtract</button>
<h4>Current count: {{ counter }}</h4>
</div>
</body>
</html>
var app = angular.module("test",[]);
app.controller('trans',function($scope){
$scope.name = 'amruth';
$scope.word = "ever";
$scope.counter = 0;
$scope.add = function(amount) {
$scope.counter += amount;
};
$scope.subtract = function(amount) {
$scope.counter -= amount;
};
});
http://plnkr.co/edit/khFwKUvKkruhMa5CYtRt?p=preview
Here is your code that works: Plunkr.
Changes required :
ng-app should have a value assigned to it.
add ng-app to the body tag, as your angular script is in the head tag, html will not recognize angular
Include your controller.js after the angular but before the script code.
var app = angular.module('app', []);
app.controller('FirstController',function($scope) {
$scope.word = "ever";
$scope.counter = 0;
$scope.add = function(amount) {
$scope.counter += amount;
};
$scope.subtract = function(amount) {
$scope.counter -= amount;
};
});
<!DOCTYPE html>
<html>
<head>
<title>Simple App</title>
<script data-require="angular.js#1.3.1" data-semver="1.3.1" src="//code.angularjs.org/1.3.1/angular.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="app">
<div ng-controller="FirstController">
<h4>The simplest adding machine ever</h4>
<button ng-click="add(1)" class="button">Add</button>
<a ng-click="subtract(1)" class="button alert">Subtract</a>
<h4>Current count: {{ counter }}</h4>
</div>
{{6+2}}
</body>
</html>
1. modify html file
Here is solution for your problem.Add following line inside your html code
<html ng-app='app'>
inside <head> tag add script : <script src="app.js"></script>
2. modify controller.js
app.controller('FirstController',function($scope){});
Error occured because you added extra space between "'FirstController'," and "function($scope){})"
I have started using JQPlot to draw the graph in real time as well. I have got one sample example working in which it will draw the graph with two data only-
var storedData = [70, 10];
Then I have added a button, if I click on that button, it will start rendering some more data. Basically, you can say just like real time data from the server-
But the problem that I am facing currently is, as soon as I clicked on Start Updates button, it doesn't draw anything. So I believe, I messed up something the button click thing. It's been a long time I worked on Javascript and HTML thing so I have forgotten lot of things.
Below is my code-
<!DOCTYPE html>
<html>
<head>
<title>Line Charts and Options</title>
<link class="include" rel="stylesheet" type="text/css" href="../jquery.jqplot.min.css" />
<link rel="stylesheet" type="text/css" href="examples.min.css" />
<link type="text/css" rel="stylesheet" href="syntaxhighlighter/styles/shCoreDefault.min.css" />
<link type="text/css" rel="stylesheet" href="syntaxhighlighter/styles/shThemejqPlot.min.css" />
<!--[if lt IE 9]><script language="javascript" type="text/javascript" src="../excanvas.js"></script><![endif]-->
<script class="include" type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
</head>
<body>
<div class="colmask leftmenu">
<div class="colleft">
<div class="col1" id="example-content">
<div id="chart1" style="height: 300px; width: 500px; position: relative;"></div>
<button>Start Updates</button>
<script class="code" type="text/javascript">
$(document).ready(function(){
var storedData = [70, 10];
var plot1;
renderGraph();
$('button').click( function(){
doUpdate();
$(this).hide();
});
function renderGraph() {
if (plot1) {
plot1.destroy();
}
plot1 = $.jqplot('chart1', [storedData]);
}
var newData = [9, 1, 4, 6, 8, 2, 5];
function doUpdate() {
if (newData.length) {
var val = newData.shift();
$.post('/echo/html/', {
html: val
}, function(response) {
var newVal = new Number(response); /* update storedData array*/
storedData.push(newVal);
renderGraph();
log('New Value '+ newVal+' added')
setTimeout(doUpdate, 3000)
})
} else {
log("All Done")
}
}
function log(msg) {
$('body').append('<div>'+msg+'</div>')
}
});
</script>
<script class="include" type="text/javascript" src="../jquery.jqplot.min.js"></script>
<script type="text/javascript" src="syntaxhighlighter/scripts/shCore.min.js"></script>
<script type="text/javascript" src="syntaxhighlighter/scripts/shBrushJScript.min.js"></script>
<script type="text/javascript" src="syntaxhighlighter/scripts/shBrushXml.min.js"></script>
<script class="include" type="text/javascript" src="../plugins/jqplot.canvasTextRenderer.min.js"></script>
<script class="include" type="text/javascript" src="../plugins/jqplot.canvasAxisLabelRenderer.min.js"></script>
</body>
</html>
I am not able to make the button click event work. As soon as I click on Start Update button, it does not draw anything. Correct behavior should be that it should start rendering on the graph with new datasets.
I tried to make that real-time rendering thing work from this jsfiddle
I copied same bunch of code from the above JSFiddle in my HTML but it doesn't working for me. Can anybody help me with this?
Here you go - you will have to update to your jqplot location in script tags. Also, I had to change the doUpdate to doUpdate2 as $.post will not work without jfiddle as far as I know.
<!DOCTYPE html>
<html>
<head>
<title>Line Charts and Options</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="jqplot/jquery.jqplot.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.canvasAxisTickRenderer.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.canvasTextRenderer.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.canvasAxisLabelRenderer.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.cursor.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.pointLabels.min.js"></script>
<script type="text/javascript" src="jqplot/plugins/jqplot.highlighter.min.js"></script>
<script type="text/javascript">
$(function(){
/* store empty array or array of original data to plot on page load */
var storedData = [70, 10];
/* initialize plot*/
var plot1;
renderGraph();
$('button').click( function(){
doUpdate2();
$(this).hide();
});
function renderGraph() {
if (plot1) {
plot1.destroy();
}
plot1 = $.jqplot('chart1', [storedData]);
}
var newData = [9, 1, 4, 6, 8, 2, 5];
var cp = 0;
function doUpdate2() {
var newVal = new Number(newData[cp]); /* update storedData array*/
storedData.push(newVal);
renderGraph();
log('New Value '+ newVal+' added')
if (cp < newData.length-1) setTimeout(doUpdate2, 3000)
cp++;
}
function doUpdate() {
if (newData.length) {
var val = newData.shift();
$.post('/echo/html/', {
html: val
}, function(response) {
var newVal = new Number(response); /* update storedData array*/
storedData.push(newVal);
renderGraph();
log('New Value '+ newVal+' added')
setTimeout(doUpdate, 3000)
})
} else {
log("All Done")
}
}
function log(msg) {
$('body').append('<div>'+msg+'</div>')
}
});
</script>
</head>
<body>
<div id="chart1" style="height: 300px; width: 500px; position: relative;"></div>
<button>Start Updates</button>
</body>
</html>