CODEWITHSUNDEEP
javascripthtmlclass-attributesjquery
Marian Rick
Marian Rick

Reputation: 3430

How to select element has class start and end with specific string using jquery?

I got several divs using classes like

I want to select all of them and use if ( $(this).hasClass() ) to check if its one of them. Currently I only do check for a single class. How can I check all of these, for example .hasClass('wrap-*-addon-1')?

Best regards.

Upvotes: 18

Views: 11549

Answers (6)

İzzet Altınel
İzzet Altınel

Reputation: 529

It is better to add another class and select with this class. You can then test it with regex.

$el = $(".wrap");

$el.each(function() {
  var test = /wrap-[1-3]-addon-1/.test($(this).attr("class"));
  $(".result").html(test);
  console.log(test);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap-1-addon-1 wrap"></div>
<div class="wrap-2-addon-1 wrap"></div>
<div class="wrap-3-addon-1 wrap"></div>
  
<div class="result"></div>

Upvotes: 3

er-han
er-han

Reputation: 1921

This might help you, i used regex to resolve if current element's class(es) suits the desired pattern.

I assume you have more than 3 classes to check. This pattern is for wrap-1-addon-1 to wrap-n-addon-1, n is some digit

function hasMyClass(elm) {
  
var regex = /(wrap-)+(\d)+(-addon-1)/i;// this is the regex pattenr for wrap-*-addon-1
  
var $this = $(elm);
var myClassesStr = $this.attr('class');
if(myClassesStr) { // if this has any class
  var myClasses = myClassesStr.split(' '); // split the classes
  for(i=0;i<myClasses.length;i++) { // foreach class
      var myClass = myClasses[i]; // take one of classes
      var found = myClass.match(regex); // check if regex matches the class
    
      if(found) {
          return true;
        }
    }
}
  
return false;
}



function test() {
    $('#container div').each(function(){
      var $this = $(this);
      $('#pTest').append('<br/>test result for ' + $this.attr('id') + ':' + hasMyClass(this)); 
      // hasMyClass(this) is the sample usage
    })
  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="container">
  <div id="div1" class="wrap-1-addon-1 anotherClass">div1 (wrap-1-addon-1)</div>
  <div id="div2"  class="wrap-2-addon-1 anotherClass anotherClass2">div2 (wrap-2-addon-1)</div>
  <div id="div3"  class="wrap-3-addon-1 anotherClass">div3 (wrap-3-addon-1)</div>
  <div id="div4"  class="anotherClass">div4 (none)</div>
</div>
<button id="testBtn" onclick="test();" type="button">TEST</button>

<p id="pTest" >...</p>

Upvotes: 2

Developer
Developer

Reputation: 6430

Inspiring regex matching from this answer:

var $ele = $("div:first");

alert(matchRule($ele.attr('class'),'wrap-*-addon-1'))


function matchRule(str, rule) {
  return new RegExp("^" + rule.split("*").join(".*") + "$").test(str);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

<div class="wrap-1-addon-1">
</div>
<div class="wrap-2-addon-1">
</div>
<div class="wrap-3-addon-1">
</div>

Upvotes: 2

Mohammad
Mohammad

Reputation: 21489

You can combine two jquery Attribute Starts With Selector [name^=”value”] and Attribute Ends With Selector [name$=”value”] to do this work.

$('div[class^="wrap-"][class$="-addon-1"]')


$('div[class^="wrap-"][class$="-addon-1"]').css("color", "red");
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap-1-addon-1">wrap-1-addon-1</div>
<div class="wrap-2-addon-1">wrap-2-addon-1</div>
<div class="wrap-3-addon-1">wrap-3-addon-1</div>
<div class="wrap-3-addon-2">wrap-3-addon-2</div>

Upvotes: 24

urbz
urbz

Reputation: 2667

You can use starts with selector:

$('div[class^="wrap"]')

JsFiddle demo

Upvotes: 5

Radex
Radex

Reputation: 8577

You could use .is() which support multiple classes, unfortunately .hasClass() works only for one class at a time.

Example:

element.is('.wrap-1-addon-1, .wrap-2-addon-1, .wrap-2-addon-1')

Upvotes: 4

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