/Javascript/React/React should write method in a functional component or outside functional component

React should write method in a functional component or outside functional component

In most cases you should declare the functions outside of the component function
so you declare them only once and always reuse the same reference. When you 
declare the function inside, every time the component is rendered the function 
will be defined again.

There are cases in which you will need to define a function inside the component
to, for example, assign it as an event handler that behaves differently based on
the properties of the component. But still you could define the function outside
Ball and bind it with the properties, making the code much cleaner and making 
the update or draw functions reusable.

Source: stackoverflow.com

Similar codes

-2 votes426 views2 answers
Search bar in react js material ui
Javascript React
19 votes359 views6 answers
React native build android apk
Javascript React
0 vote379 views1 answer
React navigation 4
Javascript React
1 vote408 views1 answer
React map component in
Javascript React
0 vote403 views1 answer
Dynamic for loop react
Javascript React
0 vote452 views1 answer
Traduire text with api translate google in react
Javascript React
10 votes404 views2 answers
React-native text overflow ellipsis
Javascript React
0 vote396 views1 answer
Horizontal cards react bootstrap
Javascript React
0 vote376 views1 answer
React handling event
Javascript React
1 vote375 views1 answer
React native get last element of array
Javascript React