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wngcarpenter
2,987 Pointsindex.html doesn't run the code.
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Practice JavaScript Math</title> <link href="css/styles.css" rel="stylesheet"> </head> <body> <script src="js/math.js"></script> </body> </html>
This code above does not run this. // 1. Attach this file -- math.js -- to the index.html file using a <script> tag
// 2. Add an alert to announce the program with a message like "Let's do some math!"
alert("Let's do some math!"); // 3. Create a variable and use the prompt() method to collect a number from a visitor
var aNumb = prompt("Give me a number."); // 4. Convert that value from a string to a floating point number
var theNumb = parseInt(aNumb); // 5. Repeat steps 3 and 4 to create a second variable and collect a second number
var secNumb = prompt("Give me a second number."); var secondNumb = parseInt(secNumb); // 6. Create a new variable -- message -- which you'll use to build // a complete message to print to the document // Start by creating a string that includes <h1> tags as well // and the two input numbers. The string should look something like this: // "<h1>Math with the numbers 3 and 4</h1>" where the two numbers are // the values input from the user. Use string concatenation to create this // and make sure you actually perform the math on the values by // using the + symbol to add their values together var message = "<h1>Math with the numbers " + theNumb " and " + secondNumb + "</h1>";
// 7. Add another string to the message variable. // The string should look something like this after concatenation: // "3 + 4 = 7"
// 8. Add a linebreak tag -- <br> -- to the message variable
// 9. Continue to add to the message variable to include strings // demonstrating multiplication, division and subtraction // For example: // "3 * 4 = 12" // "3 / 4 = 0.75" // "3 - 4 = -1"
// 10. Use the document.write() method to print the message variable // to the web page. Open the finished.png file in this workspace // to see what the completed output should look like document.write(message);
5 Answers
Steven Parker
231,275 PointsIt looks like you have a typo.
On line 24 of math.js it looks like there's a missing concatenation operator ("+") between theNumb and the literal string following it.
Corrected version:
var message = "<h1>Math with the numbers " + theNumb + " and " + secondNumb + "</h1>";
Cory Harkins
16,500 PointsMy only thoughts on this are to restart your workspace, I plugged your code in, and it's working fine for me.
Steven Parker
231,275 PointsCheck the code file name and location.
The HTML is expecting to load the code from a file named math.js and from subfolder named js. Check the name of your code file, and that it is in that subfolder.
To enable a more complete and accurate analysis, make a snapshot of your workspace and post the link to it here.
Cory Harkins
16,500 PointsI copied and pasted, and loaded, worked fine... I wonder if maybe he/she didn't save the HTML file? :-/
wngcarpenter
2,987 PointsGotta be something else. It doesn't pull up my alert message when I open the HTML file.
Sam Donald
36,305 PointsAnother way of doing things
This is not an answer for your work. I just thought I'd share another way of implementing the programme.