debug js

((function() {
    
    
  var callbacks = [],
    timeLimit = 50,
    open = false;
  setInterval(loop, 1);
  return {
    
    
    addListener: function(fn) {
    
    
      callbacks.push(fn);
    },
    cancleListenr: function(fn) {
    
    
      callbacks = callbacks.filter(function(v) {
    
    
        return v !== fn;
      });
    }
  }

  function loop() {
    
    
    var startTime = new Date();
    debugger;
    if (new Date() - startTime > timeLimit) {
    
    
      if (!open) {
    
    
        callbacks.forEach(function(fn) {
    
    
          fn.call(null);
        });
      }
      open = true;
      window.stop();
      document.body.innerHTML = "";
    } else {
    
    
      open = false;
    }
  }
})()).addListener(function() {
    
    
  window.location.reload();
});

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转载自blog.csdn.net/dly15873944157/article/details/126440513