asked on

count number of results in a string search

Hello,
I have this string and I need to check how many times '<li>' is present please:

<li>aho</li><li>hao</li><li>loa</li><li>ola</li>

Open in new window

thank you

karunamoorthy

which long u r using, php or ....

eMisc

ASKER

Experts Exchange- Scripting Languages- JavaScript- Count Number Of Results In A String Search

Tom Beck

Assuming the <li>s are inside a <ul>, then in javascript you could do this:

<body>
<ul id="ul1">
<li>aho</li><li>hao</li><li>loa</li><li>ola</li>
</ul>
<script type="text/javascript">
alert(document.getElementById("ul1").getElementsByTagName("li").length);
</script>
</body>

Open in new window

SOLUTION

JT92677

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

ASKER CERTIFIED SOLUTION

Tom Beck

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

eMisc

ASKER

thank you!

JT92677

eMisc -- tommyboy figured you were doing this in javascript. Okay, if so there are some useful properties and methods in javascript that you might want to check out as alternative ways to deal with strings and javascript.

For example:

mystr = "<li>aho</li><li>hao</li><li>loa</li><li>ola</li>";

You can get the length as lenmystr = mystr.length;

Then use replace method with the global match switch to replace all occurrences in the string

mystr.replace("<li>"/gm, ""); to replace globally all the "<li>" found with nothing.

Now mystr.length; property will be the length of the string without all the "<li>" substrings.

and the number of matches = (lenmystr - mystr.length) / "<li>".length

Check out http://www.w3schools.com/jsref/jsref_obj_string.asp

The /g switch means look for all (global), the /m means multi-line.

Just FYI - I realize the question is closed, but someone else may benefit, who knows.