How to check if a url or url pattern is presnt or not in a string using javascript.
<script language="javascript">
var str="http://localhost/testprj?test=123213123";
var s=location.href;
if(s.match('/http://localhost/testprj?test=1232/'){
alert('wele!!');
}
</script>
what i need is to check the url pattern.
plete code
<html>
<head>
</head>
<body>
<style>
.active{
color:#009900;
font-weight:bold;
}
</style>
<div id="menu">
<ul><li>
<ul><li> <a href="html1.html">0</a>
<a href="html.html" >1</a>
<a href="2">2</a>
</li>
</ul></li>
</ul>
</div>
<script language="javascript">
var c=document.getElementById('menu').getElementsByTagName('a').length;
var v=document.getElementById('menu').getElementsByTagName('a');
var s=location.href;
//alert(s.match('html'));
for(var i=0;i<c;i++){
//alert('href'+v[i].className);
if(v[i].href==location.href){
v[i].className='active';
}
}
</script>
</body>
</html>
this is working fine , but if the get params are cause some problms...
like page.php?page=userlist works fine
but
like page.php?page=userlist&id=121221
this is the base link url link
How to check if a url or url pattern is presnt or not in a string using javascript.
<script language="javascript">
var str="http://localhost/testprj?test=123213123";
var s=location.href;
if(s.match('/http://localhost/testprj?test=1232/'){
alert('wele!!');
}
</script>
what i need is to check the url pattern.
plete code
<html>
<head>
</head>
<body>
<style>
.active{
color:#009900;
font-weight:bold;
}
</style>
<div id="menu">
<ul><li>
<ul><li> <a href="html1.html">0</a>
<a href="html.html" >1</a>
<a href="2">2</a>
</li>
</ul></li>
</ul>
</div>
<script language="javascript">
var c=document.getElementById('menu').getElementsByTagName('a').length;
var v=document.getElementById('menu').getElementsByTagName('a');
var s=location.href;
//alert(s.match('html'));
for(var i=0;i<c;i++){
//alert('href'+v[i].className);
if(v[i].href==location.href){
v[i].className='active';
}
}
</script>
</body>
</html>
this is working fine , but if the get params are cause some problms...
like page.php?page=userlist works fine
but
like page.php?page=userlist&id=121221
this is the base link url link
Share Improve this question edited Jul 7, 2009 at 8:43 Matthew Flaschen 285k53 gold badges521 silver badges552 bronze badges asked Jul 7, 2009 at 7:58 coderexcoderex 27.9k46 gold badges119 silver badges172 bronze badges 1- In the plete code, I don't see any URL regex (along the lines of what we have been suggesting). However, if I understand "get params are cause some problms" right, you may need to do some server-side (PHP) escaping of the regex. – Matthew Flaschen Commented Jul 7, 2009 at 8:46
5 Answers
Reset to default 4For pattern checking, you will want to look into regular expressions.
What particular pattern do you want to check for? If you just want to check whether a string is a URL, the following code should do:
var myString = "http://blah./helloworld/";
if (myString.match(/http:\/\//)) {
alert("'myString' is a URL.");
}
/http:\/\/localhost\/testprj\?test=1232/.test(s)
I think you just had some minor syntax issues:
var re = /http:\/\/localhost\/testprj\?test=1232/
var s=location.href;
if(s.match(re)) {
alert('wele!!');
}
note that regular expressions are a data type of their own in javascript: no quotes or anything, just / delimeters
Yes finaly i got the solution i used the functions
for(var i=0;i<len;i++){
if(strstr(url,a[i].href)) {
a[i].className='active';
}
}
function strstr( url, href) {
var pos = 0;
url += '';
pos = url.indexOf( href );
if (pos == -1) {
return false;
}
else{
if(strcmp(url,href)==0)
return 1;
}
}
function strcmp ( str1, str2 ) {
return ( ( str1 == str2 ) ? 0 : ( ( str1 > str2 ) ? 1 : -1 ) );
}
like this way, its working fine!!!
Thank you