I have pagination links set-up like this:
http://localhost/?page=2
http://localhost/?page=3
They are wrapped in Anchor links as the HREF attribute. I want to know how can I check first if the HREF attribute for a given ANCHOR contains the query string "page" case sensitive, and if it exists return its number the value after page=
Please give me a straightforward example on this, much appreciated. :)
You could try something like this:
function getPageNumber( $obj ){
if( $obj.filter('a[href*=page\=]').length )
return $obj.attr('href').split('page=')[1];
else
return false;
}
Then with:
<a id="foo" href="http://localhost/?page=3">Foo</a>
<a id="bar" href="http://localhost/?page=4">Bar</a>
<a id="baz" href="http://localhost/?Page=5">Baz</a> <!--- capital P --->
You'd get:
var result = getPageNumber( $('a#foo') ); // returns 3
var result = getPageNumber( $('a#bar') ); // returns 4
var result = getPageNumber( $('a#baz') ); // returns false (case sensitive)
Of course it would be easy to write the function to take a plain DOM object, or an ID, or whatever else you have in mind.
$("a").each(function() {
var href = this.attr("href");
if(href.match(/page/)) {
pageNumber = parseInt(href.split('=')[1]);
doSomething(this, pageNumber); //this is the jQuery element
}
});
If you have a point to the anchor tab and the format given by you is consistent, then it can be done with something as given below
var a = document.getElementById("#myanchor");
if(/[\?&]page=/.test(a.href){
alert("parameter page present");
}
Here we are looking for the parameter page with the help of javascript regular expression.