Input Checkbox indeterminate attribute

HTML DOM Input Checkbox Object

Definition and Usage

indeterminate Property setting or returning whether the checkbox state has changed.

The checkbox actually has three states: true, false, and indeterminate, which means the checkbox is neither 'on' nor 'off'.

The checkbox cannot be set to an indeterminate state through HTML attributes - it must be set through JavaScript.

This state can be used to force the user to select or deselect the checkbox.

Example

Set the checkbox to an indeterminate state:

document.getElementById("myCheck").indeterminate = true;

Try it yourself

Syntax

Return the indeterminate attribute:

checkboxObject.indeterminate

Set the indeterminate attribute:

checkboxObject.indeterminate = true|false

Attribute Value

Value Description
true|false

Specify the state of the checkbox.

Possible values:

  • true - The checkbox is in an indeterminate state
  • false - Default. The checkbox is not in an indeterminate state.

Technical Details

Return value: Boolean value, returned if the checkbox is in an indeterminate state true, otherwise return false.

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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HTML DOM Input Checkbox Object