modularized random number generation logic

This commit is contained in:
Alex Booker 2015-08-14 17:54:07 +01:00
parent b38eadd4ed
commit e13220c2fb

View File

@ -1,29 +1,35 @@
var passwordGenerator = (function() {
return {
generatePassword: function (options) {
var uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXTZ";
var lowercase = "abcdefghiklmnopqrstuvwxyz";
var numbers = "0123456789";
var punct = ".,-/#!$%^&*;:{}=-_`~()]";
var candidates = '';
if (options.includeUppercaseChars) {
candidates += uppercase;
}
if (options.includeLowercaseChars) {
candidates += lowercase;
}
if (options.includeNumbers) {
candidates += numbers;
}
if (options.includePunctuationChars) {
candidates += punct;
}
var result = "";
for (var i = 0; i < options.passwordLength; i++) {
var randomNum = Math.floor(Math.random() * candidates.length);
result += candidates.substring(randomNum, randomNum + 1);
}
return result;
var generateRandomNum = function (max) {
return Math.floor(Math.random() * max);
};
var generatePassword = function (options) {
var uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXTZ";
var lowercase = "abcdefghiklmnopqrstuvwxyz";
var numbers = "0123456789";
var punct = ".,-/#!$%^&*;:{}=-_`~()]";
var candidates = '';
if (options.includeUppercaseChars) {
candidates += uppercase;
}
if (options.includeLowercaseChars) {
candidates += lowercase;
}
if (options.includeNumbers) {
candidates += numbers;
}
if (options.includePunctuationChars) {
candidates += punct;
}
var result = "";
for (var i = 0; i < options.passwordLength; i++) {
var randomNum = generateRandomNum(candidates.length);
result += candidates.substring(randomNum, randomNum + 1);
}
return result;
};
return {
generatePassword: generatePassword
};
})();