Answers for "lowercase or uppercase all strings in array javascript"

kill all server 5000 mac

#First run this, to get port information (with the port you want to kill)
sudo lsof -i :3000 

#Then run this, with <PID> replaced by the value in the column returned by previous command.
kill -9 <PID>

kill all ports mac

lsof -n -i TCP:8080
COMMAND   PID   USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
node     54762   user   23u  IPv4 XXXXXXXXX      0t0  TCP 127.0.0.1:http-alt (LISTEN)
PID // is second field in the response . Then, kill that process:

kill -9 54762 // here put PID number found on the table 54762

lowercase or uppercase all strings in array javascript

const names = ['Ali', 'Atta', 'Alex', 'John'];

const lowercased = names.map(name => name.toLowerCase());

console.log(lowercased);
// ['ali', 'atta', 'alex', 'john']

const uppercased = names.map(name => name.toUpperCase());

console.log(uppercased);
// ['ALI', 'ATTA', 'ALEX', 'JOHN']