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JavaScript if statements prompting a download

Falke1up

Falke1up

New Coder
Hi!
Im kinda green in coding, but i got an idea for a project. I would really appreciate it if someone could tell me, if this is possible:

JavaScript: 
If (condition === true) {
//download a specific file
}
else {
//download another file
}
 
Last edited by a moderator:
Solution
EkBass
You want this behaviour for webpage or console? Anyway, here is simple example. I cant test now, but its atleast close to something that works.

JavaScript: 
// function comapres is parameter true or false
// by that, one of two files is offered as download
function downloadFile(isFile1) {
  const file1Url = 'path/to/file1.ext'; // path to file 1
  const file2Url = 'path/to/file2.ext'; // path to file 2

  // compare which file is requested to be downloaded
  const downloadUrl = isFile1 ? file1Url : file2Url;

  // create anchor
  const a = document.createElement('a');
  a.href = downloadUrl;
  a.download = '';

  // append anchor to dom
  document.body.appendChild(a);

  // trigger the download
  a.click();

  // remove anchor from dom...
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Hey!

You can probably use something like browser.downloads.download({url: "https://example.org/image.png"}) and have the link to your download. MDN has some very useful information, you can read more about working with files on their website Working with files - Mozilla | MDN.

But of course, if you need any help, let us know :)
 
Upvote 0 Downvote
You want this behaviour for webpage or console? Anyway, here is simple example. I cant test now, but its atleast close to something that works.

JavaScript: 
// function comapres is parameter true or false
// by that, one of two files is offered as download
function downloadFile(isFile1) {
  const file1Url = 'path/to/file1.ext'; // path to file 1
  const file2Url = 'path/to/file2.ext'; // path to file 2

  // compare which file is requested to be downloaded
  const downloadUrl = isFile1 ? file1Url : file2Url;

  // create anchor
  const a = document.createElement('a');
  a.href = downloadUrl;
  a.download = '';

  // append anchor to dom
  document.body.appendChild(a);

  // trigger the download
  a.click();

  // remove anchor from dom
  document.body.removeChild(a);
}

// usage
downloadFile(true); // downloads file 1
downloadFile(false); // downloads file 2
 
Upvote 1 Downvote
Solution
EkBass said:
You want this behaviour for webpage or console? Anyway, here is simple example. I cant test now, but its atleast close to something that works.

JavaScript: 
// function comapres is parameter true or false
// by that, one of two files is offered as download
function downloadFile(isFile1) {
  const file1Url = 'path/to/file1.ext'; // path to file 1
  const file2Url = 'path/to/file2.ext'; // path to file 2

  // compare which file is requested to be downloaded
  const downloadUrl = isFile1 ? file1Url : file2Url;

  // create anchor
  const a = document.createElement('a');
  a.href = downloadUrl;
  a.download = '';

  // append anchor to dom
  document.body.appendChild(a);

  // trigger the download
  a.click();

  // remove anchor from dom
  document.body.removeChild(a);
}

// usage
downloadFile(true); // downloads file 1
downloadFile(false); // downloads file 2
Click to expand...
Thank you, i wrote a version of this.
 
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