javascript - What is for(;;) in Facebook long poling request? -

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this question has answer here:

hi have question means for (;;); in facebook long polling request ? statement in every file long polled facebook server.

thank you

no way infinite loop executed; try in console. simple operation integer incrementing freeze screen:

      var = 1;     (;;) {         a++;     }

it may small trap tries eval script, or something.


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