Improving the PageSpeed ​​score. How to cache data on CDN cloudflare?

Question

JavaScript

Hi all!
Improving PageSpeed ​​score . How to cache data on CDN cloudflare?
Use the browser cache for the following resources:
cdn.ecuras.com/img/main/DnPriceTag.jpg (no expiration date specified)
cdn.ecuras.com/img/main/DnValueRec.jpg (no expiration date specified)
cdn.ecuras.com /img/main/KeyboardCloseupRectangular.jpg (no expiration date)
cdn.ecuras.com/img/main/SeoDemystified.jpg (no expiration date)
cdn.ecuras.com/img/main/WebDesign.jpg (no expiration date ) validity)
cdn.ecuras.com/img/main/Workshop2_Rec.jpg (no expiration date)
cdn.ecuras.com/img/main/WorkspaceRectangular.jpg (no expiration date)
cdn.ecuras.com/img/main/WritingInDiaryRectangular.jpg (no expiration date specified)
How to cache data on CDN cloudflare? How can I do this, who faced?

Answer 1

var trouble = +prompt('What is wrong?');

var CABEL = 1;
var ROUTER = 2;
var COMPUTER = 3;

switch (trouble) {
  case CABEL:
    console.log('check your cabel');
    break;
  
  case ROUTER:
    console.log('check your router');
    break;
  
  case COMPUTER:
    console.log('reload your PC');
    break;
  
  default:
    console.log('uncorrect trouble');
}

Answer 2

var trouble = prompt('What is wrong?');

switch (trouble) {
  case 1:
    console.log('check your cabel');
    break;
  
  case 2:
    console.log('check your router');
    break;
  
  case 3:
    console.log('reload your PC');
    break;
  
  default:
    console.log('uncorrect trouble');
  break;
}

Answer 3

1) prompt returns strings, comparison with numbers is incorrect
2) in blocks with if ()... you constantly compare with constants, although a little earlier they declared their "semantic load"
Accordingly, it would be better to do this:
1) var trouble = parseInt (prompt('What is wrong?'))
2) if (trouble == cabel) {...
...
else if (trouble == router) { ...
...
else if (trouble == computer) { ....

Answer 4

Your code works for me
here
And in general, you should not neglect ";" at the end of the line.

Answer 5

https://habrahabr.ru/post/245165/