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whats the difference between console.log and return in javascript

Whats the difference between console.log and return in JavaScript? they both seen to print out things in terminal.

  isPrime(num){
    if (num % i === 0)) {
     return false ;
   }
  for (var i = 2; i < num; i++) {
    if (num % i === 0) {
   return false;
    }
 }
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Return

The return statement ends function execution and specifies a value to be returned to the function caller.

Console.log

The Console object provides access to the browser's debugging console (e.g., the Web Console in Firefox)

console.log Outputs a message to the Web Console under development tool concel tab.


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