localStorage. setItem ( 'key' , value) ;
localStorage. getItem ( 'key' ) ;
<! DOCTYPE html > < htmllang = " en" > < head> < metacharset = " UTF-8" > < title> </ title> </ head> < body> < formaction = " input_test_action.html" method = " post" onsubmit = " return f ( ) " > < p> < inputtype = " text" name = " username" id = " username" > </ p> < p> < inputtype = " text" name = " pwd" id = " pwd" > </ p> < p> < inputtype = " reset" > < inputtype = " submit" > </ p> </ form> < script> function f ( ) { var username = document. getElementById ( 'username' ) ; var pwd = document. getElementById ( 'pwd' ) ; localStorage. setItem ( 'username' , username. value) ; localStorage. setItem ( 'pwd' , pwd. value) ; } </ script> </ body> </ html> <! DOCTYPE html > < htmllang = " en" > < head> < metacharset = " UTF-8" > < title> </ title> </ head> < body> < p> < spanid = " username" > </ span> </ p> < p> < spanid = " pwd" > </ span> </ p> < script> const username = localStorage. getItem ( 'username' ) ; const pwd = localStorage. getItem ( 'pwd' ) ; document. getElementById ( 'username' ) . textContent = username; document. getElementById ( 'pwd' ) . textContent = pwd;
</ script> </ body> </ html> 
