Is it possible to pass the totalScore var to another page onclick so that it can be displayed there? ex: click submit link it goes to yourscore.html and display the score on page
$("#process").click(function() {
var totalScore = 0;
$(".targetKeep").each( function(i, tK) {
if (typeof($(tK).raty('score')) != "undefined") {
totalScore += $(tK).raty('score');
}
});
alert("Total Score = "+totalScore);
});
Let we suppose that your HTML may be as follows:
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("#process").click(function() {
var totalScore = 0;
/*
Your code to calculate Total Score
Remove the next line in real code.
*/
totalScore = 55; //Remove this
alert("Total Score = "+totalScore);
$("#submit-link").attr('href',"http://example.com/yourscore.html?totalScore="+totalScore);
});
});
</script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<button id="process">Process</button>
<br />
Submit Total Score
</body>
</html>
Check out this DEMO
In yourscore.html you may able to know more in the following queation to extract the URL parameter from the URL:
Parse URL with jquery/ javascript?
This is generally done by changing the url of the page. i.e. if you are going go to a new page, just do:
http://example.com/new/page?param1=test
If the page already exists in a new window (like a popup that you own), set the url to something new:
http://example.com/new/page#param
Open a window:
var win = window.open('http://example.com/new/page?totalscore'+totalscore,'window');
Change the location:
win.location.href='http://example.com/new/page?totalscore'+totalscore;
Other ways of doing this could be websockets or cookies or localstorage in HTML5.
if you are aiming to support more modern browsers the elegant solution could be to use sessionStorage or localStorage! Its extremely simple and can be cleared and set as you need it. The maximum size at the low end is 2mb but if your only storing INTs then you should be okay.
DOCS:
http://www.html5rocks.com/en/features/storage
http://dev.w3.org/html5/webstorage/
DEMO:
http://html5demos.com/storage
EXAMPLE:
addEvent(document.querySelector('#local'), 'keyup', function () {
localStorage.setItem('value', this.value);
localStorage.setItem('timestamp', (new Date()).getTime());
//GO TO YOUR NEXT PAGEHERE
});
Related
I want for the user to click a button which leads to another page. Depending on what button the user clicks, the page content should look different despite being on the same page. A simplified example is below:
Starting page html code:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
Click Here
Click Here
<script src="script.js"></script>
</body>
</html>
second-page.html code:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<p id="content-id">*CONTENT SHOULD BE LOADED HERE BASED OFF BUTTON CLICKED*</p>
<script src="script.js"></script>
</body>
</html>
script.js code:
function changeContent(n) {
document.getElementById("content-id").innerHTML = n;
}
The above code does not work. I'm guessing the browser doesn't see the content-id on the first page and fails to change anything before loading the second page. Any way to reference the right id on the right page using JavaScript (no jQuery) when the new page is loaded?
Short answer: there are several approaches, the easier that comes to mind is to use localStorage if you're dealing with same origin pages
What you need is to have user information available across multiple pages. So, unlike sessionStorage, localStorage allows to store data and save it across browser sessions:
localStorage is similar to sessionStorage, except that while localStorage data has no expiration time, sessionStorage data gets cleared when the page session ends — that is, when the page is closed.
To use it, consider adapting your javascript of first page:
function changeContent(n) {
localStorage.setItem('optionChosen', n);
}
Then retrieve it in the second page's javascript.
var opt = localStorage.getItem('optionChosen')
var content = document.querySelector('#content-id')
if (opt == null) console.log("Option null")
if (opt === 'Option One') content.innerText = "Foo"
if (opt === 'Option Two') content.innerText = "Bar"
Edited -
Added 3 working examples that can be copy and pasted.
Problem -
Display content on a new view based on the button clicked to get to that view.
Approach -
You can store the value of ID in the browser to help identify the content that should be displayed in many ways. I will show you three working examples.
Notes -
I am over complicating this a little to show you how you might make this work since I do not know the exact circumstances you are working with. You should be able to use this logic to refactor for your requirements. You will find the following 3 solutions below.
1. Using GET Params
Uses the GET params in the URL to help you track necessary changes in your view.
2. Using Session Storage
A page session lasts as long as the browser is open, and survives over page reloads and restores.
Opening a page in a new tab or window creates a new session with the value of the top-level browsing context, which differs from how session cookies work.
Opening multiple tabs/windows with the same URL creates sessionStorage for each tab/window.
Closing a tab/window ends the session and clears objects in sessionStorage.
3. Using Local Storage
The difference between localStorage and sessionStorage is the time the data persists. LocalStorage spans multiple windows and lasts beyond the current session.
The memory capacity may change by browser.
Similar to cookies, localStorage is not permanent. The data stored within it is specific to the user and their browser.
Solutions -
Working Examples - (Copy and paste any of the below solutions into an HTML file and they will work in your browser.)
Using GET Params
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<script type="text/javascript">
let currentURL = window.location.href.split("?")[0];
function appendParams(val) {
if (val === "a") {
window.location.assign(currentURL + "?id=a");
}
if (val === "b") {
window.location.assign(currentURL + "?id=b");
}
}
</script>
<title>Working Example</title>
</head>
<body>
<button onclick="appendParams('a')">Click Here</button>
<button onclick="appendParams('b')">Click Here</button>
<p id="replace-id"></p>
</body>
</html>
<script type="text/javascript">
let url_str = window.location.href;
let url = new URL(url_str);
let search_params = url.searchParams;
let id = search_params.get("id");
document.getElementById("replace-id").id = id;
let ContentOne = "Some text if id is A";
let ContentTwo = "Some text if id is B";
if (id === "a") {
document.getElementById("a").innerHTML = ContentOne;
}
if (id === "b") {
document.getElementById("b").innerHTML = ContentTwo;
}
</script>
Using Session Storage
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<script type="text/javascript">
sessionStorage.setItem("id", "default");
function addSessionStorage(val) {
sessionStorage.setItem("id", val);
updateContent();
}
function updateContent() {
let id = sessionStorage.getItem("id");
let ContentOne = "Some text if id is A";
let ContentTwo = "Some text if id is B";
if (id === "a") {
document.getElementById("replace-content").innerHTML =
ContentOne;
}
if (id === "b") {
document.getElementById("replace-content").innerHTML =
ContentTwo;
}
}
</script>
<title>Working Example</title>
</head>
<body>
<button onclick="addSessionStorage('a')">Click Here</button>
<button onclick="addSessionStorage('b')">Click Here</button>
<p id="replace-content">Default Content</p>
</body>
</html>
Using Local Storage
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<script type="text/javascript">
localStorage.setItem("id", "default");
function addLocalStorage(val) {
localStorage.setItem("id", val);
updateContent();
}
function updateContent() {
let id = localStorage.getItem("id");
let ContentOne = "Some text if id is A";
let ContentTwo = "Some text if id is B";
if (id === "a") {
document.getElementById("replace-content").innerHTML =
ContentOne;
}
if (id === "b") {
document.getElementById("replace-content").innerHTML =
ContentTwo;
}
}
</script>
<title>Working Example</title>
</head>
<body>
<button onclick="addLocalStorage('a')">Click Here</button>
<button onclick="addLocalStorage('b')">Click Here</button>
<p id="replace-content">Default Content</p>
</body>
</html>
I made a button click counter for a website using some JavaScript.
The counter works well, but now I'm stuck in making the saving of the count. You know, if I click the button 3 times, the text says 3 Times. But I want to save that value so if the user refreshes the page, it should display 3 Times again.
I knew of using localStorage, I followed a simple tutorial and applied it to my code, but it does not seem to be working. When I run the page in Microsoft Edge and see the Debug page (F12), the console throws an error that says: Unable to get property 'getItem' of undefined or null reference. I searched in other posts but no one of these could solve my problem. It seems to be stuck when retrieving the value in localStorage.
This is my code:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Increment count when button is clicked</title>
</head>
<body>
<input type="button" value="Registrar" id="countButton" />
<input id="ocityField" type="text" value="" placeholder="Ciudad de Origen"/>
<input id="cityField" type="text" value="" placeholder="Ciudad de participación"/>
<input id="name" type="text" value="" placeholder="Nombre"/>
<p>Personas Registradas: <span id="displayCount">0</span></p>
<script type="text/javascript">
var count = 0;
var button = document.getElementById("countButton");
var display = document.getElementById("displayCount");
var textbox = document.getElementById("ocityField");
var textboxa = document.getElementById("cityField");
var textboxb = document.getElementById("name");
if(window.localStorage.getItem('count')){
var savedcount = window.localStorage.getItem('count');
count = window.localStorage.getItem('count');
}else{
count = 0;
}
display.innerHTML = count;
button.onclick = function(){
var mystring = textbox.value;
var mystring2 = textboxa.value;
var mystring3 = textboxb.value;
if(!mystring.match(/\S/) || !mystring2.match(/\S/) || !mystring3.match(/\S/)) {
alert ('Empty value is not allowed');
return false;
} else {
count++;
window.localStorage.setItem('count', count);
display.innerHTML = count;
textbox.value = "";
textboxa.value = "";
textboxb.value = "";
return true;
}
}
</script>
</body>
</html>
I tried using window.localStorage and just localStorage but no one did work.
May be that you use the IE browser does not support localStorage，The code can run in Chrome49.
Can I Use localStorage, here you can check what browser supports localStorage with version numbers.
Alternate way to store data on client side is cookies if localStorage doesn't supported by browser.
You can also use third party plugins like Modernizer, to check whether browser supports or not.
Modernizr.localstorage if it evaluate to true the browser supports localStorage.
Following example demonstrates localStorage and cookies depending on browser compatibility. uses Modernizer and jQuery
codepen
I'm trying to create a project which involves users being able to vote, and taking or adding to a global bank of points.
This is my very basic prototype, but I need to find a way to have the localstorage value be global, and the same for every user, using serverstorage.
The code:
<!DOCTYPE HTML>
<html>
<head>
<title>Javascript variable testing</title>
<script type="text/javascript">
var clicks;
function onClick() {
clicks = +clicks + 1;
document.getElementById("clicks").innerHTML = clicks;
localStorage.setItem('clicks', clicks); // set the value to localStorage
};
window.onload = function() {
clicks = localStorage.getItem('clicks') || 500000; // get the value from localStorage
document.getElementById("clicks").innerHTML = clicks;
};
</script>
</head>
<body>
<button type="button" onclick="onClick()">Click this bit</button>
<p>Clicks: <a id="clicks">500000</a>
</p>
</body>
</html>
localStorage is meant for storing data in the User's Browser. You might need to store data into your Server for your requirement. You can use AJAX for the same.
I am looking for a quick script that will update a number daily. This is for something like the number of days without an accident in the work place.
I want it to to put an link to the HTML page for it in the startup group in XP (yes XP, company is a little behind) and have it run at bootup. I may add more stuff later but this is the main purpose.
So each day it needs to update the number by 1 based on the previous days number, so it is most likely going to have to be read and written to a file. If the browser is closed or the system rebooted it should not update increment the browser unless it is a different day.
Can someone point me to a good way of doing this. I was thinking javascript, but I am open. I have no access to a database.
Thanks
This script should do the trick
HTML
<div id="counter">1</div>
<button id="reset">Reset</button>
JS
setInterval(function(){
var value = parseInt(document.getElementById('counter').innerHTML);
document.getElementById('counter').innerHTML = (value+1).toString();
},86400000); //86400000 = 1 day in milliseconds
var btn = document.getElementById('reset');
btn.onclick=function(){
document.getElementById('counter').innerHTML = "0";
};
http://jsfiddle.net/khe67/3/
Well than you may wanna use HTML5 to save variables within the web browser, so if you happen to reload or reboot the computer you still have your variables saved. Code may look something like this:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Hello HTML5</title>
<script>
window.onload = function (){
if(typeof(Storage)!=="undefined"){
var goodDays;
var oldTime = localStorage.getItem("oldTime");
var timestamp = new Date().getTime();
if(!oldTime || oldTime==""){
goodDays = 1;
localStorage.setItem("oldTime", timestamp);
localStorage.setItem("dayCounter", goodDays);
}else{
var timeCheck = oldTime + (24 * 60 * 60 * 1000);
goodDays = localStorage.getItem("dayCounter");
if(timestamp > timeCheck){
goodDays++;
localStorage.setItem("oldTime", timestamp);
localStorage.setItem("dayCounter", goodDays);
}
}
document.getElementById("dCounter").innerHTML=goodDays;
}else{
alert("geat a real browser");
}
}
function resetDays(){
localStorage.setItem("oldTime", "");
localStorage.setItem("dayCounter", "");
location.reload();
}
</script>
</head>
<body>
<div style="display:inline">DAYS WITH OUT INCENDENTS </div><div style="display:inline" id="dCounter"></div>
<div style="cursor:pointer" onclick="resetDays()">Reset</div>
</body>
</html>
So, I've found this JSFiddle example. In JSFiddle works well, the problem is that, even if I search any != from "advogados" (just testing), the browser goes to: http://www.site.com/index.html?procura=teste
No jQuery conflict, no html issue.
Here's JS
$("#procura").on("submit", function(event){
// prevent form from being truely submitted
event.preventDefault();
// get value of text box
name = $("#procura_texto").val();
// compare lower case, as you don't know what they will enter into the field.
if (name.toLowerCase() == "advogados")
{
//redirect the user..
window.location.href = "http://jornalexemplo.com.br/lista%20online/advogados.html";
}
else
{
alert("no redirect..(entered: " + name + ")");
}
});
If your javascript is somewhere in your HTML before your <form> your $("#procura") will be an empty set, so the submit-action won't be bound to anything. Try following code:
<html>
<head>
<script type="text/javascript" src="/path/to/your/jquery.js"></script>
<script type="text/javascript">
$(function() {
// This code will be run if your document is completely
// parsed by the browser, thus all below elements are
// accessible
$('#procura').on('submit', ....);
});
</script>
</head>
<body>
<form id="procura">...</form>
</body>
</html>
$(function() {}) is also known as $(document).ready(function() {}), (documentation)
You aren't defining the variable name. http://jsfiddle.net/zwbRa/59/
var name = $("#procura_texto").val();