Add to the operation a mutation that sets the value of the specified key to the specified value if all checks pass during the commit.
Parameters
key: KvKey
DOM APIs
c
c
I
I
I
I
I
T
T
f
DOM Events
c
c
c
c
c
c
I
I
I
I
I
I
I
I
T
v
v
v
v
f
f
f
Encoding API
I
I
v
I
I
v
I
v
I
I
v
f
f
Errors
N
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
ES Modules
I
Fetch API
c
I
c
c
I
I
unstable
I
unstable
I
unstable
I
unstable
I
v
I
I
T
T
T
T
T
T
T
T
T
T
T
f
unstable
f
unstable
FFI
c
unstable
c
unstable
c
unstable
c
unstable
I
unstable
I
unstable
I
unstable
I
unstable
I
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
v
unstable
f
unstable
File System
c
I
I
I
I
I
I
I
I
I
I
I
T
v
f
f
f
f
f
f
f
f
f
unstable
f
unstable
f
f
f
f
f
unstable
f
unstable
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
unstable
f
f
f
f
f
f
f
HTTP Server
I
I
I
unstable
I
unstable
I
unstable
I
unstable
I
unstable
T
unstable
f
unstable
f
f
unstable
I/O
c
I
I
I
I
I
I
I
I
v
v
v
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
E
KV
c
unstable
c
unstable
c
unstable
c
unstable
I
unstable
I
unstable
I
unstable
I
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
T
unstable
f
unstable
Network
I
I
I
I
unstable
I
unstable
I
I
I
unstable
I
unstable
I
unstable
I
I
I
I
I
I
I
I
unstable
I
I
unstable
I
unstable
I
unstable
I
I
unstable
I
I
I
unstable
I
unstable
T
T
f
unstable
f
unstable
f
unstable
f
unstable
f
f
f
f
f
Observability
c
I
I
I
I
v
f
f
f
Performance
c
I
c
c
c
I
I
T
v
Permissions
c
c
I
I
I
I
I
I
I
I
I
I
T
T
T
T
v
Runtime Environment
I
I
I
T
v
v
v
v
v
v
v
v
f
f
f
f
f
f
f
f
f
f
f
f
f
Streams API
c
I
v
I
v
I
I
I
I
I
v
I
I
v
I
I
v
I
I
I
v
I
I
I
v
I
I
I
I
v
I
v
I
I
I
I
I
I
v
I
v
I
I
I
I
v
I
T
T
Sub Process
c
c
c
I
I
I
I
I
unstable
T
f
f
unstable
Testing
I
I
I
I
f
f
Typed Arrays
T
Web APIs
c
c
c
c
c
c
c
I
v
I
I
I
I
I
T
v
v
v
v
f
f
f
f
Web Crypto API
I
I
I
I
I
I
I
I
I
v
I
v
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
v
T
T
T
T
T
T
v
Web Sockets
c
c
c
unstable
I
I
I
I
unstable
I
unstable
I
I
unstable
T
f
WebAssembly
N
c
c
c
c
c
c
c
c
I
I
I
I
I
I
T
T
T
T
T
T
T
T
f
f
f
f
f
N