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JavaScriptのスニペット

Last updated at Posted at 2016-12-21

第一引数で与えた関数がtrueを返すまで、
第二引数の関数の実行を待つ関数。

function(func, callback, context){
 var args = _.toArray(arguments).slice(3);
 var timer = null;
 var ifunc = function(){
  if(func.apply(context, args)){
   if(!context){
    context = null;
   }
   if(timer){
    clearInterval(timer);
   }
   callback.apply(context, args);
   return true;
  }
  return false;
 };
 if(!ifunc()){
  timer = setInterval(ifunc, 50);
 }
 ifunc = null;
 return timer;
}

こーゆーのもうあるとか、こうしたほうがいいとかあったら教えてほしいなぁ

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