$.post('service.php?getPhotos', function(data){
var photoIds = [];
$.each(data, function(){
photoIds.push(this.id);
});
console.log(_photoId); //7962669392
console.log(photoIds); //["7980686507", "7962669392", "7962163506"]
console.log($.inArray(_photoId, photoIds)); //-1
});
Why doesnt console.log($.inArray(_photoId, photoIds)); return 1?
string vs integer I would imagine. Different types would mean that inArray does not see them as the same. Make sure you are using a string instead of an integer and this should work.
It seems like _photoId is a number but photoIds contains strings. Try this:
$.inArray(''+ _photoId, photoIds)
This is because the $.inArray function also takes the type into account. It will not say that an integer is the same as a string. This is also explained in the first comment in the documentation.
You can use _photoId.toString() to get the string representation of the value.
Also note that ECMAScript (Javascript) have a native function called indexOf which does exactly the same thing as the jQuery one:
photoIds.indexOf(_photoId.toString())
