Javascript Password Generator The method for generating a password is relatively simple in terms of problem solving We need to know what characters the password can contain and how many characters the password should be We then randomly choose a character n number of times Week 7 Programming Assignment Password Generator Length of Password Uppercase Lowercase Numbers Symbols Generate function Generate Password() Create variables for the HTML elements we will need to access var output document getElementById('outputSequence') var chkUpper document getElementById('chkUpper') var chkLower document getElementById('chkLower') var chkNumbers document getElementById('chkNumbers') var chkSymbols document getElementById('chkSymbols') Clear output from previous runs output innerHTML '' The strings containing all possible characters for our password var upper ABCDEFGHIJKLMNOPQRSTUVWXYZ var lower upper toLowerCase() notice the use of a string function instead of typing the string over in lowercase var numbers 0123456789 var symbols $ () Create a placeholder variable for holding characters available for our password var characterPool '' Based on selected input, we need to determine whether to include a character set in our generation We can do this by accessing the checked property of a checkbox element See the sample below If a set is selected, we will add it to the characterPool variable using string concatenation I have included examples for determining whether or not Upper and Lower are checked as well as adding them to the Character Pool Notice the differences Even though the code is slightly different, they do the same thing with slightly less typing if(chkUpper checked true) characterPool characterPool upper if(chkLower checked) characterPool lower You will need to add a conditional statement to check the other 2 possible sets and include them if needed Crate a variable for the length we want to our password to be var length parseInt(document getElementById('txtLength') value) Create a variable to hold our password as we generated it var password '' Create a loop (using the length as the number of iterations needed) With each pass you will need to choose a random character from the characterPool and assign to a password string You can get a random number by calling randomInRange and giving it a min and max The min should be 0, and the max should be the length of your character pool 1 This is because you will be using it to access an index in a string You can do that using stringVariable index as described on Page 124 var randomNum randomInRange(0, characterPool length 1) var nextCharacter characterPool randomNum Generate Password Here Finally, output your generated password to the page output innerHTML password Unlike a lot of other languages, JavaScript doesn't have a built in way to get a random number between 2 numbers, i e random number between 1 and 10, or in this case, between 0 and the length of our character pool The function below, gets around that limitation and provides a way to to do so function randomInRange(min,max) return Math floor(Math random() (max min 1) min) The Function Below is to assign event handlers to the button on the page You will not need to make any changes to this function function init() var btnGenerate document getElementById('btnGenerate') btnGenerate onclick Generate Password window onload init

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Javascript: Password Generator The method for generating a password is relatively simple in terms of problem solving. We need to know what characters the password

Javascript: Password Generator

"The method for generating a password is relatively simple in terms of problem solving. We need to know what characters the password can contain and how many characters the password should be. We then randomly choose a character n number of times."

Week 7 Programming Assignment

Password Generator

Length of Password:

Uppercase
Lowercase
Numbers
Symbols

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