Check If Localstorage Is Empty?
Sep 19, 2011How do I check to see if HTML5 localstorage is empty?
I don't need to know what's inside just if there is anything inside.
Code:
This is returning empty all the time.
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How To Check Textbox Empty Or Not
Oct 9, 2009I creating a form, i want submit if it is not empty, how can i do it?
View 1 Replies View RelatedCheck If The Form Is Empty
Apr 24, 2009I need a simple script that will check onclick if the user has entered something into the input text form. If they haven't then just alert that you must enter something to search for a term. I had something like this before, but the problem I was having was that it was alerting but right after you click okay it would continue on to the next page... Which kinda make the whole alert thing pointless... Also, I'm about sick in tired of not knowing JavaScript, where is some great sites to get my learn on?
View 6 Replies View RelatedCheck And See If Three Fields Are Empty?
Sep 12, 2011I am trying to check and see if three fields are empty and if they are then to alert the user saying to fill in one of the three fields. I tried this:
if (StreetNumber.value.length == 0) {
if (StreetName.value.length == 0) {
if (City.value.length == 0) {
alert("Please enter a street number, street name, or city.");
[Code]....
Check If A Span Is Empty?
Feb 4, 2010I need to check if a span is empty but every attempt at doing this has failed. This is in a for loop so it has to be able to change the span its checking.
var ids=new Array('PSN','XBL','xfire','steam','tweet','fbook');
for(i=0;i<=ids.length-1;i++)
{
if (document.getElementById(ids[i]).innerHTML == '')
[Code]....
Never runs... I have tried a few other things I've found on the internet but they don't see to work either.
I've debugged this and found out the code stops running on this line.
if (document.getElementById(ids[i]).innerHTML == '')
JQuery :: Check If Input Is Empty
Dec 26, 2011I have made a forum thats look like this:
<form action="" method="post" id="contactform">
<div id="name-wrap">
<label for="name" class="req">Namn</label><span>Fyll i ditt för- och efternamn</span>
[Code]....
JQuery :: Check If .load() Is Empty?
Jun 30, 2010I'm wondering how to check if load() is empty because if it is, I do not want to show()
$("#orderList").load("OrderListHandler.ashx?action=" + action + "&oid=" + sid +, function()
{
// if nothing came back from the ajax request to .ashx, then I need to hide()
$("#noOrdersContainer").show();
});
JQuery :: How To Check If A Select Is Empty
Sep 26, 2010I have
$('select#species').change(function()
{
if ($(this).val() == "")
{
[Code]....
I'm attempting to check if the #species combobox is empty, if its empty then alert empty.
That code seems like it should work, but it doesn't. How do I check if the selectbox value is ""?
-Rich
Registration - Check For Empty Textboxes?
Dec 25, 2011I'm doing a registration system and as you can see when i verify the fields, if it's empty it says that the FIELD_1 misses. And what i want is if the field is empty says that and then goes back, but i don't wanto the info already written disappears.I'm using ajax, i never worked with it, so i'm gonna ask you if i'm doing everything ok:registration form:
<!---------VALIDAAJAX---------->
<link rel="stylesheet" type="text/css" href="style_val.css" />
<script src="ajaxforms.js" type="text/javascript" language="javascript"></script>
[code]....
JQuery :: Check If Form Has Elements Or Is Empty?
Apr 10, 2011I have a form that is a regular form but in some cases it might be empty.
<form id="myform"></form>
or it might have some elements
<form id="myform"><input name="X" value="X" /><input name="Y" value="Y" /></form>
What is the proper way to count or check if the form has say inputs, select, textarea, etc..., or check if it's empty?
JQuery :: Empty Doesn't Check Values After Loading
May 7, 2009I'm trying to select my textarea only if it is not empty. I have used :empty for this purpose. This works find when you load the page, however if you start typing in it still considers the value as it was when the page loads.
Example. If my textarea is empty when I load the page, it will consider it empty. If I starting typing in, and check if it is empty it still say it is empty.
The same vice versa. If my textarea has text when the page loads, then i clear that data, it still consider it filled not empty.
So how to make the check of :empty in real time?
If A Check Box Is Or Not Empty - Allow User To Have One Box Checked At Any Time In A Form
Mar 31, 2009I'm trying to figure out with Java Script how I would have Java Script check and see if a check box is or not empty. The goal is to only allow the user to have one box checked at any time in a form. That means, if they click on another one and there is already one checked, it would uncheck the one that was checked and make the one that the person checked on next checked.
View 4 Replies View RelatedCheck "all Fields Are Empty" On A Form?
Oct 5, 2011<form name="form2" onSubmit="validateForm2()" action="" method="POST">
<table>
<tr>
<td> <select name="smonth"> <!--some options--> </select></td>
<td><input readonly="readonly" name="day" type="text" size="23"></td>
</tr>
[Code]...
Error Firefox Using LocalStorage
Jul 12, 2010So i am working on a piece that using local storage and saves them to an un ordered list. I have been using Chrome for the console and inspector abilities and it has been going well. I've tested it before in Safari and Opera and I know it works. However, in Firefox (and IE but I don't care about that) I am getting a console error.
Here is the code being executed:
There is some jQuery thrown in there but basically it says, test for a localStorage key of i, if it is not null create the list item, add one to i and repeat.
I am getting the following error in firefox only:
Index or size is negative or greater than the allowed amount" code: "1 [Break on this error] while (localStorage.key(i) != null)
Way To Store An OBJECT In LocalStorage?
Mar 21, 2011I've been experimenting with Local Storage. I can do things like this just fine:
But if I do this:
...then place it in local storage, reading it back gives me a TEXT STRING that says "[Object object]" and not the actual object.
I would like to be able to store multiple values in one object, but it doesn't seem to work.
I also tried to store a variable obtained with "document.getElementById" and when read back it just says [HTMLDivElement] (something like that) instead of the actual element.
Am I doing something wrong, or does local storage not support objects? (btw, tested on FF 3.6).
LocalStorage: Cannot Get Storage Event To Fire
Jun 7, 2011I'm attempting to track changes to values I've stored in the localStorage object. From everything thing I've read, this is done by adding a "storage" event listener to the window object but the test file I made doesn't seem to fire the event. I was under the impression that there was pretty good support for this (although I do realize the spec is still under revision).
Code:
if(localStorage) {
// Set Item
button1 = document.createElement("input");
[Code].....
I create two buttons on the page - the first to write a value to localStorage (which works) and the second to clear all values from localStorage (also works). The problem is the event just does not want to fire for me. Even if I set the event on the window's "onstorage" property rather than use addEventListener, no event fires. I've tried in the most recent Chrome, Firefox and Safari browsers.
JQuery :: Access LocalStorage Files Also From Other Apps
Nov 27, 2010For a calendar project implemented with pure HTML/CSS/JS I need to access local data files (.ICS). These ICS/iCal data has to be accessed also by other applications (eg. sync, backup, etc).Can anyone point to a possible solution to use HTML5 compatible calls (or jQ plugin) AND how to access the localStorage files also from the other apps.
View 2 Replies View RelatedConvert Cookie Script Over To HTML 5 LocalStorage ?
Jul 7, 2010How to convert my cookie script over to HTML 5 LocalStorage.
Here's my cookie script:
LocalStorage And SessionStorage Aimed At Mobile Browsing?
Oct 14, 2010I've recently written a small javascript library that creates a unified interface for localStorage and sessionStorage.
The code is here[URL]... I'm looking for people to give me feedback and to help me work on it should you so wish.
Jquery :: LocalStorage.removeItem Not Working When Passing Id?
Sep 14, 2011Im playing with HTML5 LocalStorage and it seems pretty straight forward for the most part. Load the page with the following to insert the test values.
Code:
localStorage.setItem("artist-0", "0"); //saves to the database, key/value
localStorage.setItem("artist-1", "1");
localStorage.setItem("artist-2", "2");
localStorage.setItem("artist-3", "3");
[Code]...
Password Protected HTHL5 LocalStorage Security?
Apr 21, 2011I've just started my venture into HTML5 localStorage. I now have a javascript my server sends to those who visit my ip address. I store all their data using localStorage. I have a few security questions regarding the HTML5 localStorage situation:
1. Can a script that did not create the local storage retrieve/modify the localStorage of another script just by guessing the key maliciously or unintentionally?
2. Can another script use the clear() method to remove my scripts data? Edit: I just tried this myself. And, yes, I deleted my data, all of it with clear() using a different script. Is there any way to prevent this? Is it only my end that will be able to do it or could I load a script from a site has a hidden clear() method and destory all other javascript apps data?
3. If item (2) is true, any ideas on how to protect my scripts data for the user from the clear method?
4. if item (2) is false, cool, my first idea is to create a uniqnue string random string and ask the user to creat a password to encrpt that string and just use that string with enumeration added to it for the keys.
5. Does anyone know where localData is stored? Is it encrypted already, in plain text, in well-known or hidden location?
Using LocalStorage To Store A Large Amount Of Data - > 5mb
Dec 13, 2011I've been using localStorage to store a large amount of data (> 5mb). I know that most browsers limit localStorage to 5mb. However, on the specification site it states,
Quote:
User agents may prompt the user when quotas are reached, allowing the user to grant a site more space. This enables sites to store many user-created documents on the user's computer, for instance.
Is this available yet? If so, how would I use it?
Function - Check On A Check Box Another Check Box Appears
Jan 28, 2009I want a function that when you check on a check box another check box appears.
View 10 Replies View RelatedJQuery :: Uncheck And Check (re-check) A Radio Input On Page Load?
Oct 4, 2011Here is the HTML: [URL] I'm trying to uncheck the selected radio button, then set the value to 1 (Yes), basically overwriting theinitialvalue to 1. I've looked at prop(), val(), and attr(), and just don't know where to start. Should I select $('#set_q157 input') or$('#set_q157 input:radio'), or each individual radio?
Do I need to each them, and check if its checked, then change its value, or is there a way to select all three inputs as just one radial button? It would also need to work if the input has not yet been checked.
How To Count Number Of Check Boxes In A Check Box List.
Mar 29, 2006i have a list of checkboxes, the number of checkboxes is dynamic. All the checkboxes have same name. i am trying to get the length of selected checkboxes.
<input type=checkbox name=name1 value=1>
<input type=checkbox name=name1 value=2>
........ get dynamically.
when i try to get the length in javascript like document.form.name1.length, it works fine if number of checkboxes selected are more than 1, but not for 1.
Auto Check Multiple Check Boxes Onclick ?
Mar 11, 2010I have a code that I got from a tutorial website. The goal is when someone clicks the first check box with the value of yes then the two other sets of check boxes will autmatically be checked for no.
The issue is their are three sets of 2 check boxes each.
So here is my code code I am trying to use
PHP Code:
Here is my form code
PHP Code:
So Ideally when a representative clicks that the customer has three services (clicks the Yes checkbox) all the other checkboxes will default to No.
How I would change the above javascript to do this.
