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".
var mode = Lock.mode
One of "exclusive" or "shared".
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}`);
}
| Specification | Status | Comment |
|---|---|---|
| Web Locks API The definition of 'mode' in that specification. | Draft | Initial definition. |
| 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 | ? | ? |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Lock/mode