January 31, 2001 - Deleting DOM Substrings | WebReference

January 31, 2001 - Deleting DOM Substrings

Yehuda Shiran January 31, 2001
Deleting DOM Substrings
Tips: January 2001

Yehuda Shiran, Ph.D.
Doc JavaScript

As far as text manipulation is concerned, Netscape 6 is richer in functionality than Internet Explorer. One example of this is the deleteData() method. Using text nodes, it deletes a substring from the text node data. You can specify the offset of the substring and its length. Here is its syntax: 

textObj.deleteData(offset, count);

where:

offset is a long integer value indicating the offset of the substring, in characters, from the beginning of the string.
    • count is a long integer value indicating the number of characters to delete, starting from the specified offset.

    Let's create a text node at the document level. We put the following line in the header of this tip:

    txtObj = document.createTextNode("Doc JavaScript BiWeekly Columns");

    Now we'll delete a substring with an offset of 15 and a length 9. Click this button to get the result in Netscape 6 (Doc JavaScript Columns). Click in Internet Explorer 5.x and you'll receive an error message:

    Here is the button definition: 

    <FORM>
<INPUT TYPE="button" VALUE="Delete a Substring" onClick="javascript:handleClick()">
</FORM>