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JavaScript JavaScript Basics (Retired) Working With Numbers The Mad Libs Challenge Revisited

Posted by marvelousperson206
marvelousperson206
9,199 Points

So [ ] brackets are used strictly to add to prompt boxes? Do they have another use?

var questions = 3;
var questionsLeft = " [" + questions + " questions left]";
questions -= 1;
var adjective = prompt('Please type an adjective' + questionsLeft);
var verb = prompt('Please type a verb');
var noun = prompt('Please type a noun' + questionsLeft);
alert('All done. Ready for the message?');
var sentence = "<h2>There once was a " + adjective;
sentence += ' programmer who wanted to use JavaScript to ' + verb;
sentence += ' the ' + noun + '.</h2>';
document.write(sentence);

The variable questionsLeft contains a string between [ ] brackets, which adds that string to the prompt box... He may have explained the usage of those brackets but I may have missed it?

1 Answer

miikis
miikis
44,957 Points

Hey Russell,

Normally, brackets are a way of declaring arrays or objects in JavaScript. In this case, however, they are just for punctuation's sake. He could have easily used parentheses like "(3 questions left)" or not used any punctuation at all. But, either way, in this case, the brackets hold zero significance.

marvelousperson206
marvelousperson206
9,199 Points

Thanks Mikis!

Dana Holdt
Dana Holdt
5,578 Points
Dana Holdt
Dana Holdt
5,578 Points

Agh. Thanks. I was left wondering the same thing.