Waiting till facebook SDK (or any other async SDK) has loaded

I am currently working on a project where we use the Facebook JSSDK extensively. The recommended way of using the SDK is to load it…

28 Aug 2017 ... src = "//connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }( document, 'script', 'facebook-jssdk'));.

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