I've already read a few questions here but can't seem to find exactly what I'm looking for. Basically, I need to know if any of the elements present in an array are present in a string. An example:
var currentHref = "http://www.vorcu.com/hello";
var urls = [
"vorcu.com",
"neutronico.com",
"word2.com"
];
So, I need to know if any of the elements in "urls" coincide with any of the text present in "currentHref". Any ideas?
Thanks!
Something like this:
for (var i = 0; i < urls.length; i++) {
if (currentHref.indexOf(urls[i]) != -1) {
alert(urls[i]); // found occurence, break or continue
}
}
Or RegExp way (above way is preferred):
var isInArray = RegExp(urls.join('|')).test(currentHref); // true|false
or
var matches = currentHref.match(urls.join('|')); // array of matches ["vorcu.com"]
Everyone is providing the Javascript answer (which I fully support), but just because you mention jQuery I figure I'd provide an alternative:
var curHref = window.location.hostname.split('.'),
// i imagine your static string was just for test purposes
checkHref = curHref[1]+'.'+curHref[2],
urls = [
"vorcu.com",
"neutronico.com",
"word2.com"
];
if($.inArray(checkHref,urls) > -1){
// its in there, do your magic
}
This creates the object I assume you wanted to check (hostname minus www) and if it matches any of the items in urls using the jQuery inArray method.
A function like the following should work:
function containsAny(str, arr) {
for (var i = 0; i < arr.length; i++) {
if (str.indexOf(arr[i]) !== -1) {
return true;
}
}
return false;
}
Alternately you could use the slower but more terse:
RegExp(arr.join('|')).exec(str);
You could use the some method, which is supported by many browsers:
var currentHref = "http://www.vorcu.com/hello";
var urls = [
"vorcu.com",
"neutronico.com",
"word2.com"
];
var containsAny = urls.some(function(x) { return currentHref.indexOf(x) >= 0; });
For compatibility with browsers where some is not supported, the MDN article I've linked provides an implementation you can use.
