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Lock.mode

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The mode read-only property of the Lock interface returns the access mode passed to LockManager.request() when the lock was requested. The mode is either "exclusive" (the default) or "shared".

Syntax

var mode = Lock.mode

Value

One of "exclusive" or "shared".

Example

The following examples show how the mode property passed in the call to LockManager.request(). LockManager is the object returned by navigator.locks.

// Should show "exclusive" (the default)
navigator.locks.request("my_resource", show_lock_properties);

// Should show "exclusive"
navigator.locks.request("my_resource", {mode: "exclusive"}, show_lock_properties);

// Should show "shared"
navigator.locks.request("my_resource", {mode: "shared"}, show_lock_properties);

function show_lock_properties(lock) {
  console.log(`The lock name is: ${lock.name}`);
  console.log(`The lock mode is: ${lock.mode}`);
}

Specifications

Specification Status Comment
Web Locks API
The definition of 'mode' in that specification.
Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 69 ? ? ? 56 ?
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 69 69 ? ? 56 ? ?

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Lock/mode