我需要我的javascript代码来按代码块检索id

Question

So I have a Javscript that can retrieve the id from onClick, but it only selects the first div with an id. The problem is that I have multiple unique id's that are generated in php and then saved in mysql database. The id's are unique but I need my onClick to retrieve the id in the div block.

 function postFunction() {
var i;
var x;
  for (i = 0; i< x.length; i++)
    x = document.getElementsByClassName("post")[0].getAttribute("id");
    //alert(this.id);
    alert(x);

}

Is there a way to select id per code block?

Answer 1

I see you have the jQuery tag in your question. Try this:

function postFunction() {
    var ids = []; //in case you need to have all ids;
    $('.post').each(function() {
        var id = $(this).attr('id');
        ids.push(id); //Store the id in the array
        alert(id);
    });
    console.log(ids); //Show all ids.
}