Optional equalCustom function to compare two values, that should return true if they are equal.
It is called when setting a new value to avoid doing anything (such as notifying subscribers) if the value did not change.
Custom function to compare two values, that should return true if they are equal.
It is called when setting a new value to avoid doing anything (such as notifying subscribers) if the value did not change.
true if a and b are considered equal.
The default logic (when this option is not present) is to return false
if a is a function or an object, or if a and b are different
according to Object.is.
equal takes precedence over notEqual if both are defined.
First value to compare.
Second value to compare.
true if a and b are considered equal.
Optional notCustom function to compare two values, that should return true if they are different.
It is called when setting a new value to avoid doing anything (such as notifying subscribers) if the value did not change.
Custom function to compare two values, that should return true if they are different.
It is called when setting a new value to avoid doing anything (such as notifying subscribers) if the value did not change.
true if a and b are considered different.
The default logic (when this option is not present) is to return true
if a is a function or an object, or if a and b are different
according to Object.is.
StoreOptions.equal takes precedence over notEqual if both are defined.
Use StoreOptions.equal instead
The default logic (when this option is not present) is to return true
if a is a function or an object, or if a and b are different
according to Object.is.
StoreOptions.equal takes precedence over notEqual if both are defined.
Use StoreOptions.equal instead
First value to compare.
Second value to compare.
true if a and b are considered different.
Optional onA function that is called when the number of subscribers changes from 0 to 1 (but not called when the number of subscribers changes from 1 to 2, ...). If it returns a function, that function will be called when the number of subscribers changes from 1 to 0.
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Store options that can be passed to readable or writable.