https://etarg.network/etarg/js/assets/gradient-text/jquery.measurer.js

1$measurer=function(){var
2    callbacks=[],interval=500,curHeight,el=null,isInit=false,isDocReady=false;$(function(){isDocReady=true;isInit&&initBlock();});function createBlock(){if(el==null){el=$('<div></div>').css('height','1em').css('left','0').css('lineHeight','1em').css('margin','0').css('position','absolute').css('padding','0').css('top','-1em').css('visibility','hidden').css('width','1em').appendTo('body');curHeight=el.height();}}
3    function getHeight(){return curHeight;}
4    function initBlock(){createBlock();$(window).resize(callFuncs);curHeight=el.height();setInterval(function(){var newHeight=el.height();if(newHeight!=curHeight){curHeight=newHeight;callFuncs();}},interval);}
5    function callFuncs(){for(var i=0;i<callbacks.length;i++){callbacks[i]();}}
6    return{resize:callFuncs,bind:function(func){if(!el){isInit=true;isDocReady&&initBlock();}
7        callbacks.push(func);},unbind:function(func){for(var i=0;i<callbacks.length;i++){callbacks[i]==func&&callbacks.splice(i,1);}},getHeight:getHeight,createBlock:createBlock};}();