Functions And Variables Quiz

Functions and Variables Quiz

What does the following function call log to console:

function log() {
  console.log(greeting);
  var greeting = 'Hello!';
}
log();

'Hello!'
undefined
'undefined is not a function'

What does the following function call log to console:

log();
function log() {
  console.log(greeting);
  var greeting = 'Hello!';
}

'Hello!'
undefined
'undefined is not a function'

What does the following function call log to console:

log();
var log = function() {
  console.log(greeting);
  var greeting = 'Hello!';
}

'Hello!'
undefined
'log is not a function'

What does the following function log to console:

function log(s) {
  var s = 'Mr. X';
  console.log(s);
}
log('Hello!');

'Hello!'
'Mr. X'
undefined
'undefined is not a function'

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