JavaScript DHTML/Node Operation/queryCommandState
"queryCommandState()" Example
<source lang="html4strict">
<html> <body> <script language="JavaScript"> function function1() {
var myText = document.selection.createRange();
if (!myText==""){
if (myText.queryCommandEnabled("Delete") == true) {
document.execCommand("Delete");
}
}
var m = myText.queryCommandState("Delete");
if (m == false) {
alert("Delete command has not been executed");
}
} </script>
Select text in this paragraph, and then click button.
<input type="button"
value="Click to delete selection and verify command state"
onclick="function1();">
</body> </html>
</source>
