javascript exercism.io bob solution
var Bob = function() {
return {
hey: function(input) {
// Remove leading or trailing spaces just in case.
input = input.trim();
// Check for silence (empty string or spaces which would be removed by trim above).
if (input === '') {
return 'Fine. Be that way!';
}
// Regular expression to test if there are any letter (alphabetic) characters
// in input string. (Regex excludes non-alpha characters.)
regex = /[^\W\d_]+/g;
// Test for alpha characters and SHOUTING.
if (regex.test(input) && input === input.toUpperCase()) {
return 'Whoa, chill out!';
}
// Check for a question.
if (input.charAt(input.length-1) === '?') {
return 'Sure.';
}
// All other cases:
return 'Whatever.';
}
};
};
module.exports = Bob;