Title gets undefined when hovered (jQuery UI Tooltip) -


the following code run every second in setinterval:

for (i = 0; < mt1.length; i++){     $(mt1[i]).each(function(){         $(this).attr('title', $(this).attr('title').split(" ")[0] + " " + $(this).attr('title').split(" ")[1]);     }); }  title = "<img src='/flags/4x3/cn.svg' width='20px'' height='20px'> " + accounting.formatmoney(accounting.unformat($(this).html().split(" ")[0].substr(2).slice(0, -1)) * -6, '¥', 2, ",", "."); $(this).attr('title', title + '|' + $(this).attr('title'));

what happening when not hovered, inspecting element shows correctly, text blinking every second stated in setinterval() method: <span title="55 tests |<img src='/flags/4x3/cn.svg' width='20px'' height='20px'> ¥1.90</span>

but after gets hovered, shows undefined instead of 55 tests. what's happening?

this shown in console.log after hovering:

undefined |<img src='/flags/4x3/cn.svg' width='20px'' height='20px'> ¥1.90

update:

seems tooltip (jqueryui tooltip) using has it, next code in beginning of page. does, turns | <br> move currency value next line:

$(function() {     $( document ).tooltip({         content: function(callback)         {             callback($(this).prop('title').replace(/\|/g, '<br />'));         }     }) });

update: jsfiddle added:

[https://jsfiddle.net/hrklssgk/][1]

i'm not sure if needed code in setinterval, left it. here working fiddle: https://jsfiddle.net/hrklssgk/2/

notice we've changed array contain updated flag each element. once element has had it's title updated, not go through updating again until flag reverted. 

var mt1 = [     [$("#la"), false] /* first element jquery, second flag if it's been updated */ ];

iterate through each element, , execute title-change if it's flag false:

mt1.foreach(function(){         if (!mt1[i][1]) {

if setinterval not necessary, better off moving logic outside of setinterval , function called when needed


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