I find this example confusing

Call a script

In the case of calling scripts let’s assume there is a script with the simple variable defined as integer:

external.js

var a = 10;
Than in jQuery you call it with:

$.ajax({
dataType : ‘script’,
url : ‘http://example.com&/#8217;,
success : function() {
console.log(a);
}
});

Please explain CLARLY how this is working

You have a script called external.js.

You then call ‘http://example.com&/#8217;,

I presume the the external.js script when this loads . Is this correct ?

When explaining this always tell the full story

Start by saying what you want to do .

Then show the code how to do it – all of the code –

Then show the result of running the code including the output .

If you are calling http://example.com/ . Show the code for this as well . We need to see the what is running in this page – i am assuming you are

Remember you are trying to communicate how it works – so we need to be able to piece it together step by step -please don’t leave gaps

Finally – learn to KEEP IT SIMPLE. Avoid complexity , gaps ,jargon or assumptions .