Question

I created a wordpress plugin (say P1 ) in which I used fancybox (a jquery plugin). I included its js using wordpress’s wp_enqueue_script() function.

But, on my client wordpress blog, he is using some other wordpress plugin, one of them (say P2) also use fancybox.

When both these P1 and P2 are active, fancybox js loads 2 time one from P1 and another from P2. And due to this it gives error

loading is undefined (on line 36)

can I

1. prevent fancybox to load 2 or more times from my wordpress plugin
2. or handle this js error

prevent

Answer 1

you can prevent loading your script twice from your side (wordpress side) if you have control over it.

You can probably use the typeOf operator to see if a particular fancybox has already loaded and if yes you do not include it twice.