Are all links within a specific block or bulleted list with a class?
You can think of a lot of ways to find links inside any element. For example, you can simply write the desired selector , or use the methods find() , or children() which searches only among the descendants of the first level.
$("ol.targetClassName a") //перечень ссылок внутри списка с классов targetClassName $("ol.targetClassName").find("a") // то же самое через find()
Alternatively, determine that element is inside a specific class.
For these purposes, you must walk up the DOM tree. You can use the parents() method to return all parents with the desired selector, or closest() , which returns the closest node up the hierarchy that satisfies the condition. If such elements are found (the number found is greater than or equal to 1), then it is contained inside.
var contains = element.closest(".cat-name").length == 1; var contains = element.parents(".cat-name").length > 0;
Here element is a jQuery variable.
Just how can you define links of this type?
Regular expressions will help you in this matter. It is necessary to find all the links, and filter the obtained using the filter() collection method. This method as a parameter receives a reference to the callback function (callback), which directly performs filtering, returning true if the element is appropriate, and false otherwise. Based on this value, our link will or will not fall into the result. The simplest regular expression for the description of such a link will be /^\/index\/([\d-]+)$/i . In short, ^ and $ here denote the beginning and end of the line, \/ escaped slashes, index is the beginning of the link, and with the i flag at the end, the search will be case-insensitive, ([\d-]+) - a group of more than one character consisting of numeric values of \d or minus sign. The entire expression before the flags is // . As I have already written, this is the simplest expression, so links like /index/0 , index/0-- , etc., will fall under it, but others will be filtered. Perhaps this is enough for your task.
The code below finds such links and replaces their test description.
$("a").filter(function(idx, el){ var re = /^\/index\/([\d-]+)$/i; return re.test($(el).attr('href')); }).text("found!");
it is possible to slightly complicate the expression by writing (\d+\-){4}\d+ , such an expression will correspond to the mask of the four groups of dashes , and another number.
