Search text inside a webpage

How can I search text and count its appearance inside a webpage?
I'll try NodeIterator and NodeFilter but there's an error "NodeFilter is undefined".

Jun 10 '07 #1

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2360

sumittyagi

202

Expert 100+

How can I search text and count its appearance inside a webpage?
I'll try NodeIterator and NodeFilter but there's an error "NodeFilter is undefined".

I don't know about node filters, (havn't heard abt it), But you can iterate nodes, then check if it is a text node, and if it is then get its text and serach for your content.

Jun 11 '07 #2

dmjpro

2,476

2GB

I don't know about node filters, (havn't heard abt it), But you can iterate nodes, then check if it is a text node, and if it is then get its text and serach for your content.

How to check an element if it is text node or not?
Plz help.

Kind regards,
Dmjpro.

Jun 11 '07 #3

sumittyagi

202

Expert 100+

How to check an element if it is text node or not?
Plz help.

Kind regards,
Dmjpro.

Its very simple:
<script language="JavaScript"
type="text/javascript">
window.onload = function() {
var s = "";
with (document.getElementById("para")) {
for (var i=0; i<childNodes.length; i++) {
with (childNodes[i]) {
s += nodeName + ": " + nodeValue +
" (" + nodeType + ")\n";
}
}
}
window.alert(s);
}
</script>
<p id="para"><em>JavaScript</em> Phrasebook</p>

nodeType stores the info of type of node.
these are typical nodeTypes
Node Type
Description

1 Tag

2 Attribute

3 Text (includes whitespace)

8 HTML comment

9 Document

10 DTD

11 Fragment

Jun 11 '07 #4

acoder

16,027

Expert Mod 8TB

How to check an element if it is text node or not?

Check this example .

Jun 11 '07 #5

iam_clint

1,208

Expert 1GB

This is how i would get a word count

Expand|Select|Wrap|Line Numbers

 
<html>

<body>

<script>

function countWords(word) {

var fText = document.body.innerHTML;

fText = fText.split(word);

wordCount = fText.length-2;

alert("Found the word '"+word+"' "+wordCount+" time(s) on this page");

}

</script>

<input type="text" id="theword" value="word"><input type="button" onclick="var theword = document.getElementById('theword').value; countWords(theword);" value="Search">

apples

cherries

apples

pies

quarters

mexico

mexico

</body>

</html>

as an example

Jun 11 '07 #6

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