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How much can a client store ?

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Dec 23.2006

Hello

I am looking at writing a large JavaScript file but have a concern..

I would like to store a large amount of objects on the client side.

I will be sending XML and receiving XML via Ajax and would like to keep a history of every POST the user makes via Objects and Arrays.

If a user did over 100 request and i stored results in arrays and custom objects , would the client run into memory issues or anything else ?

Hope you can help

Drew

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JavaScript

4 Comments(s) ↴

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@coppocksDec 23.2006 — The closest I have come with what you are talking about was along the lines of a chat application. Whereby a new request was made every 2 seconds. Now each time a new chat input was detected, a new table row & 2 or 3 cells (objects) was added to the table. I like doing things from scratch, that's how I learn... so here's what happened...

Initially, I added the cells with DOM and used innerHTML to add the cell content, which may or may not have added HTML as part of the innerHTML (ie, adding a <br> tag to a line break in the chat text). That DID cause memory issues with IE. So when I went all DOM and did away with the innerHTML and went to createTextNode, all memory leaks went away. During testing, we got up to several hundred rows with 3 columns each, with no issues.

You just cant add HTML tags as part of createTextNode() or the tag will display as part of the text, so I added code in the JavaScript to detect and add such things ... document.createElement("br") ... and append that to the cell etc.

Additionally, I did not use XML, but PHP returned a text string with each request, which was parsed and displayed accordingly. But the principle is the same. I had more than 100 requests, created multiple objects each time, appending those to existing objects. Core DOM, no issues. I used Drip and sIEve to check IE memory issues.

Maybe this is what you are talking about?
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@shiv_gtmDec 23.2006 — i the similar way i want to know how i send a varible data from client system to server system when i submit the data to server. and how i also read client data in server
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@cgishackauthorDec 23.2006 — shiv_gtm - Look into [B]Ajax [/B]and your favorite [B]server side[/B] language (i.e php )
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@cgishackauthorDec 23.2006 — coppocks -

Thank you very much for the reply.

I will definitely consider all the suggestions you made.!

Drew
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