Practice Set - Basic Math and String Operations

by IrfanMalik

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 x = 3;
var y = 6;
console.log(x + y); //adding the variables and sending to console

// Insert your code for #2 here
var number = prompt("Enter a number and it will be incremented by 1");
console.log(++number); // number + 1 and send to console

// Insert your code for #3 here
console.log(Math.sqrt(64)); // square root of 64 should return 8 to console

// Insert your code for #4 here
var string_input = prompt("String Length Check");
console.log("The length of the string is " + string_input.length); //checking the length of hte string using the variable and