useRef
returns a mutable ref object whose .current
property is initialized to the passed argument
(initialValue
). The returned object will persist for the full lifetime of the component.
Note that useRef()
is useful for more than the ref
attribute. It’s handy for keeping any mutable
value around similar to how you’d use instance fields in classes.
Usage note: if you need the result of useRef to be directly mutable, include | null
in the type
of the generic argument.
useRef
returns a mutable ref object whose .current
property is initialized to the passed argument
(initialValue
). The returned object will persist for the full lifetime of the component.
Note that useRef()
is useful for more than the ref
attribute. It’s handy for keeping any mutable
value around similar to how you’d use instance fields in classes.
useRef
returns a mutable ref object whose.current
property is initialized to the passed argument (initialValue
). The returned object will persist for the full lifetime of the component.Note that
useRef()
is useful for more than theref
attribute. It’s handy for keeping any mutable value around similar to how you’d use instance fields in classes.