February 2, 2001 - Extracting DOM Substrings
February 2, 2001|
Extracting DOM Substrings
Tips: January 2001
Yehuda Shiran, Ph.D.
replaceData()method is one example. Operating on text nodes, it replaces a substring from the text node data. You can specify the offset of the substring and its length, as well as the new string to insert. Here is its syntax:
textObj.replaceData(offset, count, data);
offset is a long integer value indicating the offset of the substring to be replaced, in characters, from the beginning of the string.
count is a long integer value indicating the number of characters to replace, starting from the specified offset.
data is a string to insert instead of the replaced substring.
Let's create a text node at the
document level. We put the following line in the header of this tip:
and then let's replace a substring that starts at offset 15 and of length 16, with
Here is the definition of this button: