WatchOptions
Methods
guard
Since ver. 5.1.0
Optional
boolean
guard(T
newValue, T
oldValue)A function that returns a boolean to determine if the callback should be called. The guard not set by default.
Parameters
newValue:
T
oldValue:
T
Returns
type:
boolean
Props
clearable
Optional
clearableWhether the callback should be removed after calling the clear method. The default value is true.
immediate
Since ver. 5.1.0
Optional
immediateWhether the callback should be called immediately after being added. The default value is false.
once
Optional
onceWhether the callback should be called only once. The default value is false.
signal
Since ver. 5.1.0
Optional
signalAn AbortSignal. The watch callback will be removed when the abort() method of the AbortController which owns the AbortSignal is called. See AbortController for details.