Default value for function parameter?

Question

So I\'ve been doing this for as long as I can remember, but I\'m curious if this is really what I should be doing. You write a function that takes a parameter, so you antic

Answer 1

Hopefully this answers a bit clearer for someone - I ended up using the ol' check for undefined if(typeof functionparameter !== 'undefined') as per:

$.fn.extend({
    doThing: function(stringparameter = 'FooBar!', functionparameter){
        console.log('Here is your string '+stringparameter);
        // Run it if it's been passed through:
        if(typeof functionparameter !== 'undefined') functionparameter();
});