Same piece of code, two calls, one pass, one exception:
function Clearselect (obj) {
if (obj && obj.options)
obj.options.length=0;
}
Here are some of the previous experiences:
This is two classical anomalies, it is difficult to locate the principle. You can see the conditions that occur from the following code
<iframe src= "javascript: ' <script>top.ff1={abc:function () {}}<\/script> '" Width=0 height=0 name= "F1" ></iframe>
<button onclick= "f1.location= ' About:blank" settimeout (' Alert (FF1.ABC ()) ', 0) ' > cannot execute code that has been freed </button>
<iframe src= "Javascript: ' <script>top.ff2={abc:function () {}}<\/script> '" Width=0 height=0 name= "F2" ></iframe>
<button onclick= "f2.location= ' About:blank '; settimeout (' Alert (ff2.tostring ()) ', 0)" > accidentally called a method or property access </ Button>
The innerHTML of the P tag cannot be inserted into the center tag:
<p onclick= "innerhtml= ' <CENTER></CENTER>" ><button> unknown run-time error </button></p>
The following is a classic "Unable to open Internet site" Exception:
<div id= "tt" ><div><script>document.getelementbyid ("tt"). Innerhtml= "" </script></div ></div>
From these examples you can see the robustness of IE there is a lot of room for improvement.
