Replace existing class with the one of your choosing. Works well when you want to change a standard icon with a google material icon etc.
var _replaceClass = (elem, className, text) => {
try {
var prevClass = jQuery(elem).attr('class').split(' ');
if(prevClass !=='') {
for(var i=0; i<prevClass.length; i++) {
if(text.length > 0) {
jQuery(elem).removeClass(prevClass[i]).addClass(className).text(text);
}
else {
jQuery(elem).removeClass(prevClass[i]).addClass(className)
}
}
}
} catch(e) {
return null;
}
}