php - Algorithm to stop flickering (clear box and re-populate) when adding text -

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i wondering if there's algorithm or resource @ changes made ajax request , not update whole box (causing flicker) add/remove changes made.

this used keypress command.

a example stack overflows "preview" doesn't flicker when add more text parses text adds (though i'm not sure uses ajax in stackoverflow's case).

i'm using jquery so: $('#content').html(response);

thanks! matt mueller

the best (most flexible way) accomplish break target , response chunks. returning json object {object-id: 'html source', ...} , checking if each object has changes associated before updating.

i'm guessing want catch-all parsing-solution, text-difference scanner update changed portions - creates more inflexible problems. because done through ajax call, it's hard determine returned (if it's valid request or not), , how of has changed.

for reference, preview on uses attacklab's showdown, pure-javascript parse.


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