CSCI E-3 Week 3, Assignment 1

Practice Set - Basic Math and String Operations

by Rick Harraghy

HTML

<h3>Basic Math and String Operations</h3>
<h4>4 Tasks for this Practice Set:</h4>
<ol>
    <li>
        Write a script to add two numbers and output the sum to the console</li><li>
    Write a script that prompts for input, adds one to whatever number was input and outputs the sum to the console. Use the increment operator.  Assume that the input will be a number (no type-checking is required for this exercise).
    </li><li>
    Look up the Math object, and use one of its methods to do <i>something</i> to a number and output the result to the console (you pick: square it, round a decimal number up or down, do a trig function...whatever) Make sure the you comment your code or use console output to describe what you’re doing.
</li><li>
    Prompt for input and assign the result to a variable. Then, look up the String object, and use one of its properties to output the length of the string variable to the console.
    </li>
</ol>

JavaScript

// Insert your code for #1 here
var num1 = 1;
var num2 = 2;
var total;

total = num1 + num2;

console.log("The Total is " + total);


// Insert your code for #2 here
var enteredNum = prompt("Please enter a number");

console.log("The Entered Num is " + enteredNum);

enteredNum++;

console.log("The Number Entered + 1 equals " + enteredNum);


// Insert your code for #3 here
var sqrtResult = Math.sqrt(100); // Returns the square root of 100

console.log("The Square root of 100 is " + sqrtResult);

// Insert your code for #4 here

var enteredString = prompt("Please enter a string and its length will be determined");

console.log("The Length of this string is " + enteredString.length);