jQuery 如何在Jquery的div中获取div id？

Question

提问by Martin Ongtangco

How do you get the id's in a div?

你如何在div中获取id？

<div id="container">
   <div id="frag-123">ass</div>
   <div id="frag-123">ass</div>
   <div id="frag-123">ass</div>
</div>

Thanks!

谢谢！

Answer 1

There are multiple ways to do this. You can use map():

有多种方法可以做到这一点。您可以使用map()：

var ids = $("#container").children().map(function(n, i) {
  return n.id;
});

$("#container").children().each(function(n, i) {
  var id = this.id;
  // do something with it
});

etc

等等

Answer 2

You can use

您可以使用

attr('id')

Answer 3

$('div', $('div#container')).each(function() {
    console.log($(this).attr('id')); 
});

Answer 4

to get them as an array of strings

将它们作为字符串数组获取

var ids = $.map($('#container div'), function(n,i) {
              return n.id
          });