When does useeffect return run

------------------------------------------------------------------------
The useEffect returned function runs according to the dependencies array:
------------------------------------------------------------------------
- if it's empty [], on unmount.
- if it has dependencies [value1,value2], on dependencies 
  change (shallow comparison) and unmount.
- if it has no dependencies (no 2nd argument for useEffect) 
  it runs on every render and unmount.
------------------------------------------------------------------------

Source: stackoverflow.com

Similar codes

0 vote91 views1 answer
Input-group-addon prepend
Html
0 vote129 views1 answer
Use variable in input value vuejs
Html
15 votes128 views5 answers
Audio in html
Html
1 vote137 views1 answer
Jquery insert html into iframe
Html
0 vote133 views1 answer
<a href="#"><div class="fab fa-instagram"></i></a>
Html
12 votes140 views1 answer
Jquery ui cdn
Html
25 votes126 views1 answer
Html add page to document
Html
69 votes133 views6 answers
A href tag
Html
0 vote146 views1 answer
React bootstrap navbar fixed
Html
0 vote141 views1 answer
Nested select option in html
Html