# How to mark all checkboxes

**URL:** <https://www.ruby-forum.com/t/how-to-mark-all-checkboxes/103368>\
**Category:** Rails\
**Created:** [May 4, 2007, 8:20pm UTC](https://www.ruby-forum.com/t/how-to-mark-all-checkboxes/103368 "2007-05-04T20:20:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Cassiano\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ba9def/32.png) [@Cassiano\_R](https://www.ruby-forum.com/u/Cassiano_R)\
**Post date:** [May 4, 2007, 8:20pm UTC](https://www.ruby-forum.com/t/how-to-mark-all-checkboxes/103368/1 "2007-05-04T20:20:34Z")

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I have a list of checkbox…  
and I want the first check do “check all / none”

[] click to check ALL answers  
[x] blabla  
[x] blabla  
[x] blabla  
[x] blabla

How I can do that?

thanks.

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**Author:** ![Cassiano\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ba9def/32.png) [@Cassiano\_R](https://www.ruby-forum.com/u/Cassiano_R)\
**Post date:** [May 4, 2007, 8:25pm UTC](https://www.ruby-forum.com/t/how-to-mark-all-checkboxes/103368/2 "2007-05-04T20:25:35Z")

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On 5/4/07, Cassiano R. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> How I can do that?  
> Javascript.

[http://www.google.com/search?q=check+all+checkboxes+javascript](http://www.google.com/search?q=check+all+checkboxes+javascript)

–  
Greg D.  
[http://destiney.com/](http://destiney.com/)