If a Div or it's children contain a specific string/substring?

Question

In JQuery/JavaScript, how can I find out if a Div contains a specific string/substring in one of it's child elements? I've looked into both contains and indexOf but couldn't find any examples of my specific case where I need to commit a different action if a unique string/substring of that string is found.

Pseudo Code:

if (div contains (itself or child nodes) "this string/part of this string")
then do something
else 
then do something else 

Answer 1

You can use text() of div to get all the text of the current div and its childs,

if('#divId').text().indexOf("this string/part of this string") != -1)
{

}
else
{

}