javascript - Error when referencing requestanimationframe from object -


i'm trying call mozrequestanimationframe in firefox, keep getting error. here code:

var obj={     animframe:mozrequestanimationframe }  var animf=mozrequestanimationframe;  function a(){  console.log('a called');    }  animf(a);  obj.animframe(a);

the error occurs obj.animframe(a); error message of:

illegal operation on wrappednative prototype object

i found thread on so: requestanimationframe keyword , figured maybe requestanimationframe didn't have right "this" context, tried

obj.animframe(a).bind(window);

but still got same error message. why error occurring?

i dont know reason why need save pointer requestanimationframe (mozrequestanimationframe) object, try next code avoid error:

var obj={     animframe:mozrequestanimationframe.bind(window) }  function a(){  console.log('a called');    }  obj.animframe(a);

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