Checkbox value true false

Question

I have a form with checkbox and I want to keep it checked after submitting the form when it goes back to the same view with an error  I heard that the value attribute can help me to make the checkbox be checked so im trying to set it to true false  Anyway  the input value stays  false  even if I click it  What happens exactly  I thought the value goes true false after clicking the checkbox   lt input type  checkbox  name  acceptRules  class  inline checkbox  id  checkbox1  value  false  gt          lt script gt                checkbox1   is   checked   function                      checkbox1   attr  value    true                         lt  script gt

User · Answer

Checkboxes can be really weird in JS  You re best off checking for the presence of the checked attribute   I ve had older jQuery versions return true even if checked is set to  false    Once you ve determined that something is checked then you can get the value from the value attribute

User · Answer

I m going to post this answer under the following assumptions   1  You  un selected the checkbox on the first page and submitted the form  2  Your building the second form and you setting the value    true false depending on if the previous one was checked  3  You want the checkbox to reflect if it was checked or not before    If this is the case then you can do something like   var  checkbox1       checkbox1     checkbox1 prop  checked    checkbox1 val        true

User · Answer

To return true or false depending on whether a checkbox is checked or not  I use this in JQuery  let checkState       checkboxId   is   checked      true     false

User · Answer

Try this   x000D   x000D      checkbox1   is   checked   function    x000D        checkbox1   prop  checked   true   x000D      x000D         x000D   lt script src  https   ajax googleapis com ajax libs jquery 2 1 1 jquery min js  gt  lt  script gt  x000D   lt input type  checkbox  name  acceptRules  class  inline checkbox  id  checkbox1  value  false  gt  x000D   x000D   x000D

User · Answer

Use Checked   true      checkbox1   prop  checked   true     Note  I am not clear whether you want to onclick onchange event on checkbox  is   checked   function      is a wrong in the question

User · Answer

jQuery is   function does not have a signature for  is  selector   function    I guess you want to do something like this         if     checkbox1   is   checked                   checkbox1   attr  value    true

User · Answer

If I understand the question  you want to change the value of the checkbox depending if it is checked or not   Here is one solution    x000D   x000D      checkbox-value   text     checkbox1   val     x000D   x000D      checkbox1   on  change   function     x000D    if    this  is   checked      x000D        this  attr  value    true    x000D      else   x000D        this  attr  value    false    x000D      x000D     x000D        checkbox-value   text     checkbox1   val     x000D      x000D   lt script src  https   ajax googleapis com ajax libs jquery 1 11 1 jquery min js  gt  lt  script gt  x000D   x000D   x000D   lt input type  checkbox  name  acceptRules  class  inline checkbox  id  checkbox1  value  false  gt  x000D   x000D   lt div id  checkbox-value  gt  lt  div gt  x000D   x000D   x000D

[javascript] Checkbox value true/false

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