Edit DIVs after .append() - php

Question

My algorithm:
I get the DIV text from php/SQL ($.get( "read.php"...)
APPEND contenteditable div with loaded text by jQuery
check the div value, if there is errors in text I make div red (assign class, $(this).addClass("fill_red");)
on every change of text - check and assign/remove class if needed.
Problem is: with preloaded text - everything is working.
But when I append div using JS - check function don't works.
I searched the web, maybe on() method helps me.
But what event?
It should be something like onload, onchange..?
(yes, I could make div generated by php and solve the problem, but I dont want full refresh)
Thank you!
part of code:
//texts load
$(function() {
$.get( "read.php", function( data ) {
var ionka = data.split(' ');
ionka.forEach(function(item, i, arr) {
var app_text = "<div id=\"segm" + i + "\" contenteditable role=\"textbox\">" + item + "</div>";
$("#textarea").append(app_text);
});
});
//checks
var intRegex = new RegExp('^[0-9/\]{5}$');
$('#textarea div').each(function(i,elem) {
if(!intRegex.test($(this).text())) {
$(this).addClass("fill_red");
}else{
$(this).removeClass();
}
});
// edit on change. Blur because of contenteditable
var segm_array = [];
$('#textarea div').each(function(i,elem) {
$(this).blur(function() {
if (segm_array[i]!=$(this).text()){
segm_array[i] = $(this).text();
if(!intRegex.test(segm_array[i])) {
$(this).addClass("fill_red");
}else{
$(this).removeClass();
}
}
});
});

Answer 1

You dont show much code here, but my guess is that you are trying to add class before new data is loaded into dom
$.get( "read.php" ).done(function( data ) {
// addClass etc
});