javascript - How to get the length of an ordered list? - Stack Overflow

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Trying to convert some jQuery to javascript. Was using this for jQuery:

 var list = $('.list li'),
     listLength = list.length;

Now I'm trying it with JS, but it doesn't seem to work:

 var list = document.querySelector(".list"),
     listLi = list.getElementsByTagName("li"),
     listLength = listLi.length;

Any ideas?

Trying to convert some jQuery to javascript. Was using this for jQuery:

 var list = $('.list li'),
     listLength = list.length;

Now I'm trying it with JS, but it doesn't seem to work:

 var list = document.querySelector(".list"),
     listLi = list.getElementsByTagName("li"),
     listLength = listLi.length;

Any ideas?

• javascript
• html
• dom

Share Improve this question Follow asked Jan 8, 2013 at 7:16 user1929705user1929705 2111 silver badge88 bronze badges 3

• 2 Works just fine for me - jsfiddle/gWvCQ – Andreas Commented Jan 8, 2013 at 7:20
• 1 Your Vannila JS code works just fine. – Sandeep Commented Jan 8, 2013 at 7:22
• 1 Yeah, thanks, just had a typo in the actual code. Oops! – user1929705 Commented Jan 8, 2013 at 7:25

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 3

Your code should already work. But you can also use document.querySelectorAll() to perform a selector match which is cleaner than the two separate calls:

var listLi = document.querySelectorAll(".list li"),
    listLength = listLi.length;

Trying to convert some jQuery to javascript. Was using this for jQuery:

 var list = $('.list li'),
     listLength = list.length;

Now I'm trying it with JS, but it doesn't seem to work:

 var list = document.querySelector(".list"),
     listLi = list.getElementsByTagName("li"),
     listLength = listLi.length;

Any ideas?

Trying to convert some jQuery to javascript. Was using this for jQuery:

 var list = $('.list li'),
     listLength = list.length;

Now I'm trying it with JS, but it doesn't seem to work:

 var list = document.querySelector(".list"),
     listLi = list.getElementsByTagName("li"),
     listLength = listLi.length;

Any ideas?

• javascript
• html
• dom

Share Improve this question Follow asked Jan 8, 2013 at 7:16 user1929705user1929705 2111 silver badge88 bronze badges 3

• 2 Works just fine for me - jsfiddle/gWvCQ – Andreas Commented Jan 8, 2013 at 7:20
• 1 Your Vannila JS code works just fine. – Sandeep Commented Jan 8, 2013 at 7:22
• 1 Yeah, thanks, just had a typo in the actual code. Oops! – user1929705 Commented Jan 8, 2013 at 7:25

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 3

Your code should already work. But you can also use document.querySelectorAll() to perform a selector match which is cleaner than the two separate calls:

var listLi = document.querySelectorAll(".list li"),
    listLength = listLi.length;

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