JavaScript Examples

Feel Free to Look Around

Problem 1

Problem Statement

inputing a certain number which outputs all numbers below it, incuding zero.

Plans and pseudocode

input number (10) and will output all numbers below including zero. var text = ""; var i; for (i = 0; i <10; i++) { text += "The number is " + i + "
";}

Solution

var text = ""; var i; for (i = 0; i <10; i++) {text += "The number is " + i + "
";} document.getElementById("Numbers").innerHTML = text;

Example

Number Loops

Problem 2

Problem Statement

Write a program that calcualtes the time need to level up with a fixed XP range.

Plans and pseudocode

Ask user for level they wish to grind too. var totalTime = level + (level * 30);

Solution

function grindTimeCalc1(){ var level = parseInt(document.getElementById('levelInput1').value); var totalTime = level + (level * 30); document.getElementById("time1").innerHTML = "Total Time = " + totalTime + " minutes."; }

Example

Calculate Total Grind Time with Fixed XP Range

1 level every 30 minutes

Problem 3

Problem Statement

Write a program that calcualtes if the user is old enough to drink.

Plans and pseudocode

Ask user for Age. age = Number(document.getElementById("age").value); if (isNaN(age)) { drink = "Input is not a number"; } else { drink = (age <21) ? "Too young" : "Old enough"; } document.getElementById("drink").innerHTML = drink; }

Solution

function myFunction() { var age, drink; age = Number(document.getElementById("age").value); if (isNaN(age)) { drink = "Input is not a number"; } else { drink = (age <21) ? "Too young" : "Old enough"; } document.getElementById("drink").innerHTML = drink; }

Example

Calculate if You Are Able to Drink

Cipher Example

Use the cipher to encode HELLO WORLD