Proper Way To Test For Local Storage
May 13, 2011
I have some code that attempts to save a user's preference settings. It first tries to use "localStorage", and if that fails (only old versions of MSIE), then a cookie is used instead.For example, if I intentionally misspell "localStorage" by instead using "localStor" (simulating a browser that doesn't understand the object name), the code simply does not run.unfortunately, that doesn't work.
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Dec 18, 2010
m working on a website that uses a lot of ajax. There is a function to store favorites using the Cookie pluginon the site that works like this:
$(document).ready(function(){
$("#fav").cookieFill();
$(akteurContainer).bind("ajaxComplete",function(){
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Nov 26, 2011
I am working on a web app for the iPad and I am storing all my content in cookies. I am wondering how easy it is to transfer it to Local Storage.
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Apr 19, 2011
What Ive done is use local storage to set a value in my web app.
Then my next task was to write said value on my page (This took me hours but finally got it done).
My next task is using Setinterval(or what ever the correct way to solve my problem) to subtract a number (lets use "1" for this example) Every 5 seconds from the local storage value.So basically After I click the button. Value is set and displayed. After another button is click. Every 5 seconds the localstorage is subtraced by 1. I think the code im looking for is similar to this
Code:
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Dec 15, 2011
I'm trying to present a collapsible list if keys which when expanded will have a delete button at the end of it. My problem is that when this code runs, the confirmation alert shows the key name as the last one read from the array for all items. Here's the complete function:
[Code]...
why this code invokes the deleteNote function with the last key name for all notes?
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Sep 12, 2010
I'm having some experiment with the new html5 features, I got the point where I need to store and retrieve data that I don't know it's key or value. It is appeared that there is no document about I want to do.How can I retrieve the first, the last and all record(s) ?
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Oct 16, 2009
Lets say I wanted store a long string of text into a local storage member on a browser using javascript.
window.localStorage.setItem("key",longStringText);
Now lets assume that the text itself contains characters outside of the normal ISO-8859-1 character set (like asian or russian characters). Would the individual char values be stored as one byte or two bytes?
"hello" -> 5 * 1 bytes = 5 (normal 8859 character sets)
"hello" -> 5 * 2 bytes = 10 (unicode or an extended character set size).
Is ISO-8859-1 still stored like ASCII once was as 8 bits? Or is it 16? If I was to use a 2 byte character set then would that cut the size of my allocated local storage space by half?
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Mar 14, 2009
I'm using the standard module pattern and the problem is once you set a private variable, trying to test that object independently becomes a nightmare as the next test is polluted by the actions of the previous.So, the options are to have some reset method (which is horrible), setters on everything (defeats the point) or delete object and re-load script (hideous).
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Mar 22, 2010
HAVE CLIENT-SIDE FORM COOKIE GET AND SET FUNCTIONS IN THE SECOND WINDOW DOCUMENT EXTERNAL JS.FILE OF A DUMY TEST SITE FOLDER ON MYCOMPUTER. IE8 THROWS 'SYNTAX ERROR' ON THE 'WINDOW.LOAD=FUNCTION, FIRST COOKIE FUNCTION HIGHLIGHTED'. CAN I ACTUALLY TEST COOKIES ON A TEST SITE ON MY COMPUTER WITHOUT THE SERVER (MYCOMPUTER) OR A DOMAIN NAME? YEAH NO HECKLING FROM THE PEANUT GALLERY.[code]...
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Aug 29, 2011
here when i click the test button it will create a new test button inside div tag.But after that if i clicked new generated test button document.getElementById("test" ).onclick = function() is not working.how can i add functions to new dynamically created fields?
<div id="a" >
</div>
<input type="button" value="Test" id="test" class="form-submit"/>
when i click the test button it will create a new test button inside div tag
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Jun 18, 2009
What solutions would you guys recommend for storing data on the client? Is there something better than cookies? I've heard about the flash data storage, but, in my opinion, using flash for something as basic as client-side data caching is like using a sledge hammer to kill a fly.
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Dec 14, 2006
Does anyone have a reputable reference about internal string storage in
JavaScript? (for some particular implementation I mean).
Say having 1,048,576 characters long string from the geometric
progression:
function generateLargeString() {
var s = 'a'
for (var i=1; i<21; ++i) {
s = s.concat(s);
}
return s;
}
- the internal size should be 2 mebibytes and not 1 (?) if strings are
indeed stored as Unicode 16-bit. From the other hand it would be
tempting for an engine developer do not spend extra bytes on ASCII
chars...
So does anyone know of any documented engine optimizations on the
matter? Would be expected on some engine to have the string from above
twice smaller than say
function generateLargeString() {
// 1200 ETHIOPIC SYLLABLE HA
var s = String.fromCharCode(0x1200);
for (var i=1; i<21; ++i) {
s = s.concat(s);
}
return s;
}
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Jun 7, 2011
I'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.
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Mar 19, 2011
i am working as a llinux admin, in my company we are using Apache-tomcat to host the web server.
[URL]
check this url and i need one clarification in this image it clearly display the size of the mail box i 3mb and you are used already 21% like that,
this same scenario only we are going to use in our application , we are developing a H.R based application in that if client bought space from us.
for example if the client bought 250 mb space from us means, we need to intimate like that image which i posted above, -- ur using space is 250 mb ur alredy used 200 mb like that.
for this how is it possible using java??? and for this any server side works are there or using front side application itself we can finish this task?
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Mar 3, 2010
How to store some strings at the client side for firefox, chrome & IE?I use the Prototype JavaScript Framework on Windows Vista Home.
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Mar 3, 2010
How to store some strings at the client side for firefox, chrome & IE?
This code works on firefox & chrome but does not work on IE - no alert window appears.
var key = "localorder";
localStorage.setItem(key, 'asc');
alert('localorder ' + localStorage.getItem(key));
This code does not work on firefox, chrome nor IE - no alert window appears.
var key = "order";
sessionStorage.setItem(key, 'asc');
alert('order ' + sessionStorage.getItem(key));
I use the Prototype JavaScript Framework on Windows Vista Home.
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Jul 23, 2005
I'm sure this is probably the wrong place to ask, but is there a way to execute an SSI script in javascript?
I'm using an SSI script to read a memory address, and I'd like to be able to update the value every few seconds without having to refresh the entire page. Does anyone know a possible way to do this, or am I stuck with refreshing the entire page every 4 seconds?
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Nov 23, 2005
if i want to have a empty link, which way is more proper?
<a href="">
<a href="#">
<a href="javascript:void(0);">
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Oct 19, 2009
I am using jQuery.get to make an AJAX request to the server which should return a JSON object, but it is interpretated by jQuery as a string, not an object.[code]I do not use getJSON because I want to make one request which could return in a JSON object, or just a string, depending on some conditions.
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Aug 10, 2011
Very new using jQuery. Anyway, I have the following few lines which create a component on a web page.[code]...
Upon some analysis, I can see that the css does contain the styles used by my div. So now, I would like to change the colors of the component, but I am not sure what is the best practice. Can one override in the div tag the colors, or should one duplicate the .css and change it?
Seeking the best way to perform this that other in the group use.
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Nov 19, 2010
This is my first jQuery code so I am noob at that case. I have created page with 4 tabs based on that tutorial:Each tab has form to fill out and submit. Starting on first tab, then if passed validation goes to next, etc. But when will not pass a validation I want to keep open that tab where the error occurred. My PHP code for the second tab looks like:
if(count($errors) > 0)
{
echo '<script type="text/javascript">
[code]....
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Nov 6, 2011
So firstly this is likely not in the right place at all, as it's a bit OT but I figured it's the best place to ask. I have to document 4 different tests to my code; what structure should I take when doing this?
I was thinking:
* State the aim of the test
* State the inputs, and what I believe the output should be.
* State the actual output, and whether this positively or negatively affect my code.
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Sep 9, 2009
So I have the following form field:
Code HTML4Strict:
<input type="text" size="9" style="width: auto">
I do this, because in CSS I set all my input fields to 'width:200px;' (looks better), but also require some fields to be shorter (which I do by setting 'width:auto' and attribute size="x"). The problem with this is that I need to get the precise width of all inputs with jQuery!
But if I do the following:
Code JavaScript:
alert( $( "input" ).css( 'width' ) );
It outputs: 'auto'
How do I make it return the element's actual width?
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Dec 4, 2011
I m trying to put a button's value (e.g. a button putting a special character in a form ) in the "selected" form input that the curson is in it and typing characters.. The concept is the following . A form is created and has some input text fields and the user can write the appropiate data in these input fields. Also some buttons are created each one representing a special character and the user can click them in order to put the special character that the button has in the text field he is writing. I'm wondering how after a buttons is click it's value to appear only in the text field that someone's writing.
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Jun 1, 2009
How does one assign the return value of a jQuery method/plug-in to a reference variable?
An IT idiot with apparent zero ability to communicate among Geeks who systematically eschew reading but readily recommend the writing of others.
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Dec 16, 2010
I have to create a table using javascript. Firefox displays the expected result but for IE, the column width is screwed >"< I have to use the col tag to set width because sometimes the first row maybe merged. All I need is to create a table that strictly displays according to the inputted column widths from my program. In below I have setup very short example that construct table in a similar way to my original javascript function. I also draw a ruler to help showing the proper width of 400px on the screen. column 1 should be 100px width and column 2 should be 300px.
<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<body onload="init()">
Hard Coded:
<DIV style="WIDTH: 400px; HEIGHT: 25px;overflow:hidden;">
[Code]....
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