Summary of various methods for deleting option options in javascript_javascript skills

1. JavaScript

Copy code The code is as follows:

var oSel= document.form1.DropDownCity;
while(oSel.options.length>0){
oSel.removeChild(oSel.options[0]);
}

2. JavaScript

Copy code The code is as follows:

3. JavaScript

Copy code The code is as follows:

4. JavaScript

Copy code The code is as follows:

removeOption Usage in IE

Copy code The code is as follows:

function removeOption(index)
{
document.getElementById("selUnassignedUsers").options.remove(index);
}

removeOption Usage in FF

Copy code The code is as follows:

function removeOption(index)
{
document.getElementById("selUnassignedUsers") .remove(index);
}