Store A Long String Of Text Into A Local Storage Member On A Browser - Character Data Sizes In JS

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?

View 3 Replies


ADVERTISEMENT

JQuery :: Local Storage Instead Of Cookies?

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(){

View 1 Replies View Related

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.

View 2 Replies View Related

Change Cookies To Local Storage?

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.

View 1 Replies View Related

Setinterval - Use Local Storage To Set A Value In My Web App - Subtract A Number ?

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:

View 1 Replies View Related

JQuery :: Deleting From Array Of Local Storage Keys?

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?

View 1 Replies View Related

Chrome Webkit Local Storage Retrieve First / Last / All Records

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) ?

View 1 Replies View Related

Internal String Storage In JavaScript?

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;
}

View 2 Replies View Related

Get The Price Updated Based On Users Dropdown Selection For Member And Non-Member?

Oct 15, 2009

I am trying to get the price updated based on users dropdown selection for Member and Non-Member and also multiply it by how many they want.Should I use javascript on the page or split the page into two where 1st one would collect basic info and if they are member or non members and second would collect quantity?

View 1 Replies View Related

Dropdown Menu Too Long For Browser

Oct 18, 2009

My dropdown menu on my site is too long for my browser window. My submenus are hidden, but cause my page to extend well beyond my footer and I can't figure out how to fix it. Is it my javascript or html code?

View 4 Replies View Related

JQuery :: GetJSON Parameter - Long String?

Jun 25, 2009

I am trying to send with getJSON a very long string as parameter: $.getJSON("/ajax.php",{id:myid, thetext:mytext},myAjaxResult)where "mytext" - is value from my fckeditor.If "mytext" value is not so long, everything is going fine, but if it become a very long, getJSON doesn't work. How can I solve this question?

View 3 Replies View Related

Regular Expression :: String Must Be 6 Characters Long And A-Z, A-z And 0-9

Apr 26, 2007

String must be minimum 6 charcters long and can only contain A-Z, a-z and 0-9 ....

View 2 Replies View Related

Character "&" Is The First Character Of A Delimiter But Occurred As Data

Sep 8, 2004

Heres the code:

case "D": if ((Number(a1)==1) && (t.getDate()<10)) str+="0";str+=t.getDate();b

Its part of a date script. if i use

<!--
<![CDATA[
]]>
//-->

then the script doesnt work - but it is validXhtml....

View 1 Replies View Related

JQuery :: Long-term Browser Support Strategy?

Jan 11, 2010

What is jQuery's long-term strategy for browser support - cut off browsers after a certain number of years or when going below a certain market share? [I'm asking because of the current trend among some webdevs and also
library developers advocating to remove IE6 support and force these users to upgrade their browser. I work with several clients that do not want to "lead the way" in this respect, and need to support IE6 as long as it has a fair usage share, which may be for several more

View 8 Replies View Related

"Save As" File Dialog To Store Local Path

Feb 7, 2010

I am working with a activeX widget that has a method that produces an image which is saved to a users local machine. All the method requires is the path on the local machine. I need to obtain this path (hopefully utilizing a "save as" file dialog) and store its value to a variable so I can pass it to the method. It does work with an input type="file" but they are branded for file uploads an dit is a little misleading and confusing for the user.

example:

var path = $("#saveAsDialog").val();
activeXObj.saveScreenshot(path);

View 1 Replies View Related

Regular Expression - Enter A String That Is 2 - 20 Characters Long And Only Has Letters Doesn't Work

Jun 28, 2010

I wanted to try creating a basic expression first. I want someone to enter a string that is 2 - 20 characters long and only has letters. This is what I use so far, and it doesn't work, nothing happens at all when I run it.

Code:
// Check for a valid name.
var namePattern = new RegExp("/^[a-zA-Z]{2,20}$/");
if (namePattern.test(name))
{
window.alert("Invalid");
}

name comes from a input box I display on screen. Also, I would like to update the expression so that there can be one space in the string, but it cannot be at the beginning or end. So this string is like a persons name. Bob is OK, Bob Smith is also OK. Edit: Actually, it is doing something but its always coming back invalid.

View 9 Replies View Related

Get The Last Character Of String?

Feb 4, 2011

I had a difficult time figuring out how to get or test the last character of a string with javascript.

I found plenty of removing the last character, but not for just checking what the last character of a string is using javascript.

// create string
var str = new String("No Periods Allowed.");
// alternatively get string from field:
// var str = document.getElementById('textbox').value;

[Code]....

Well, finding that easily on a search would have saved me some time.

View 1 Replies View Related

Insert Character Into String?

Dec 1, 2010

I want to insert a character into a string. Whats the best way of doing this? So if I want to insert a hyphen(-) into the string 'oneway' giving me 'one-way'.

View 2 Replies View Related

Remove The First Character Of A String?

Sep 30, 2011

So say if my string was..

a = "Hello";
alert(a);

How do I get it to say;

alert("ello");

So how do I take off the 'H' in this example..

View 1 Replies View Related

Removing Last Character From String?

Sep 11, 2009

The last line in this JS function should remove the final comma from the end of the given string... but for some reason, it does not.Instead of returning something like:

1,2,3,4,5
...it returns:
1,2,3,4,5,

[code]....

View 2 Replies View Related

Tight Loop Of Code Long For A Long Period Of Time Without Freezing The Page?

May 11, 2011

Is their anyway to have a tight loop of code long for a long period of time without freezing the page? I want to be able to do:

for (i=0;i<9999999999;i++){
//some code
if (i%100==0){
yield();
}
}

View 8 Replies View Related

Invalid Character In String Reference

Jul 23, 2005

Is there anything 'wrong' with setting the value of a drop down menu
using the following?

document.frmStep1.drpInvaddress.value = 'A1020761603!>>R2'

This string is a key in our database that I have no control over and I
want to set the value of the menu according to this value because it
is unique. I suspect that the '' or the '>' or the '!' is making
Javascript think that this is a different type of data than string.

Is there a way to 'force' Javascript to interpret this as string?

View 2 Replies View Related

Newline Character In String Constant

Jul 23, 2005

I have a form with a textarea field. I want to validate the input from
the textarea using javascript. Suppose I want to check that the user
has not entered the string:
"Hello
World!"

To do this I am using the script:
form["text"].value == "Hello
World"

But this gives an "unterminated string constant error" because the
browser converts this to:
form["text"].value == "Hello
World"

So how do I do my check?

View 3 Replies View Related

JQuery :: Remove String Before The - Character

Jul 1, 2010

I am trying to split out a string. E.G "Australia - VIC". I want to remove everything before the -. The line of code I am using to do this is: var state = optionText.replace(/.* - /,""); This works in IE7, but in all other browsers is only removing the - resulting in "Australia VIC" rather than the desired "VIC"

View 1 Replies View Related

Find Most Common Character In Within A String?

Jan 24, 2010

what character occurs most frequently in a textarea. Do I really have to store every single character in an array and then sort it? Is there a Regular Expression for this?

View 9 Replies View Related

Using Quote In Bad Character Validation String

Sep 17, 2001

I've got the following form validation script. How can I include the quote marks as
a bad character?

I tried:
var bad_email_chars="/!#$%&*+^ ()_-=|~`?;:,'"""
It didn't help.

if(form1.elements(i).name=="text_website")
{
var bad_email_chars="/!#$%&*+^ ()_-=|~`?;:,'"
var h,j
for(h=0;h<bad_email_chars.length;h++)
{
for(j=0;j<input_str.length;j++)
{
if(bad_email_chars.charAt(h)==input_str.charAt(j))
{
alert("you have atleast one bad character in you website address. You may not submit this form until you correct this.")
window.event.returnValue=false
form1.elements(i).focus();
}}}}

Also, How do I format with indentations and as non wraping text the messages I send to this forum?

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved