jQuery 选择器中的通配符

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时间:2020-08-26 19:03:46  来源:igfitidea点击:

Wildcards in jQuery selectors

jqueryjquery-selectorssizzle

提问by ziiweb

I'm trying to use a wildcard to get the id of all the elements whose id begin with "jander". I tried $('#jander*'), $('#jander%')but it doesn't work..

我正在尝试使用通配符来获取 id 以“jander”开头的所有元素的 id。我试过了$('#jander*')$('#jander%')但它不起作用..

I know I can use classes of the elements to solve it, but it is also possible using wildcards??

我知道我可以使用元素的类来解决它,但也可以使用通配符??

<script type="text/javascript">

  var prueba = [];

  $('#jander').each(function () {
    prueba.push($(this).attr('id'));
  });

  alert(prueba);


});

</script>

<div id="jander1"></div>
<div id="jander2"></div>

回答by nico

To get all the elements starting with "jander" you should use:

要获取以“jander”开头的所有元素,您应该使用:

$("[id^=jander]")

To get those that end with "jander"

得到那些以“jander”结尾的

$("[id$=jander]")

See also the JQuery documentation

另请参阅JQuery 文档

回答by Martijn Smidt

Since the title suggests wildcard you could also use this:

由于标题建议通配符,您也可以使用它:

$(document).ready(function(){
  console.log($('[id*=ander]'));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="jander1"></div>
<div id="jander2"></div>

This will select the given string anywhere in the id.

这将选择id.

回答by GoatInTheMachine

Try the jQuery starts-with

尝试使用 jQuery 开头

selector, '^=', eg

选择器, '^=', 例如

[id^="jander"]

I have to ask though, why don't you want to do this using classes?

我不得不问,为什么你不想用类来做这个?

回答by l3thal

for classes you can use:

对于您可以使用的课程:

div[class^="jander"]

回答by PJ Brunet

To get the idfrom the wildcard match:

要从通配符匹配中获取 id

$('[id^=pick_]').click(
  function(event) {

    // Do something with the id # here: 
    alert('Picked: '+ event.target.id.slice(5));

  }
);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="pick_1">moo1</div>
<div id="pick_2">moo2</div>
<div id="pick_3">moo3</div>

回答by eduard

When you have a more complex id string the double quotes are mandatory.

当您有更复杂的 id 字符串时,双引号是强制性的。

For example if you have an id like this: id="2.2", the correct way to access it is: $('input[id="2.2"]')

例如,如果您有这样的 id: id="2.2",则访问它的正确方法是:$('input[id="2.2"]')

As much as possible use the double quotes, for safety reasons.

为安全起见,尽可能使用双引号。