HTML Standard attribute: open
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The
HTML open attribute indicates whether details
in a <details>
or <dialog>
element should be visible (i.e. open) to the user.
Valid
attribute
values (for <details>)
include:
|
Value
|
Description
|
|
open
|
Specifies whether the
details should be visible to user
|
Valid attribute
values (for <dialog>)
include:
|
Value
|
Description
|
|
open
|
Specifies whether the
dialog element is active and hence whether the user can interact with it
|
EXAMPLE:
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head></head>
<body>
Created using HTML:<br>
<details open>these details are immediately visible to users</details><br>
<details>these details need further action to become visible</details>
<br>Created using JavaScript:<br>
<span id="element"></span>
<script>
var x = document.getElementById("element");
var x1 = document.createElement("DETAILS");
x1.textContent = "these details are immediately visible to users";
x1.setAttribute("open","open");
var br1 = document.createElement("BR");
var x2 = document.createElement("DETAILS");
x2.textContent = "these details need further action to become visible";
x.appendChild(x1);
x.appendChild(br1);
x.appendChild(x2);
</script>
</body>
</html>
|
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