I'm trying to find a particular element that's returned from Uppy, a file uploading library. But for some reason the selector I've put together keeps coming up empty.
Here's what it looks like:
Object.keys(updatedFiles).forEach(fileId => {
let $files = $("#uppy-form .uppy-Dashboard-files").children('li');
$files =>
0:li#uppy_uppy-screenshot/from/2019/07/10/06/34/34/png-10-10-1d-1d-10-1d-1d-1e-image/png-25444-1562758476913.uppy-u-reset.uppy-DashboardItem
1:li#uppy_uppy-screenshot/from/2019/07/22/04/17/30/png-10-10-1d-1d-10-1d-1d-1e-image/png-9572-1563787053498.uppy-u-reset.uppy-DashboardItem
2:li#uppy_uppy-screenshot/from/2019/07/22/04/17/46/png-10-10-1d-1d-10-1d-1d-1e-image/png-130128-1563787069142.uppy-u-reset.uppy-DashboardItem
3:li#uppy_uppy-screenshot/from/2019/07/22/04/18/01/png-10-10-1d-1d-10-1d-1d-1e-image/png-130002-1563787085262.uppy-u-reset.uppy-DashboardItem
4:li#uppy_uppy-screenshot/from/2019/07/22/04/24/23/png-10-10-1d-1d-10-1d-1d-1e-image/png-29323-1563787465594.uppy-u-reset.uppy-DashboardItem
5:li#uppy_uppy-screenshot/from/2019/07/22/04/29/01/png-10-10-1d-1d-10-1d-1d-1e-image/png-41412-1563787753290.uppy-u-reset.uppy-DashboardItem
6:li#uppy_uppy-screenshot/from/2019/10/14/17/18/34/png-10-10-1d-1d-10-1d-1d-1e-image/png-813933-1571091517693.uppy-u-reset.uppy-DashboardItem
7:li#uppy_uppy-screenshot/from/2019/10/14/17/18/47/png-10-10-1d-1d-10-1d-1d-1e-image/png-1121037-1571091530669.uppy-u-reset.uppy-DashboardItem
8:li#uppy_uppy-screenshot/from/2019/10/14/17/22/35/png-10-10-1d-1d-10-1d-1d-1e-image/png-1108169-1571091758565.uppy-u-reset.uppy-DashboardItem
9:li#uppy_uppy-screenshot/from/2019/10/18/03/40/01/png-10-10-1d-1d-10-1d-1d-1e-image/png-70136-1571388003926.uppy-u-reset.uppy-DashboardItem
10:li#uppy_uppy-screenshot/from/2019/10/18/03/40/43/png-10-10-1d-1d-10-1d-1d-1e-image/png-77492-1571388045454.uppy-u-reset.uppy-DashboardItem
...
}
And here are the selector strings I've tried. In this instance, I'm attempting to select the first list item by its fileId:
let test1 = "#uppy_" + fileId.replace(/([$%&()*+,./:;<=>?@\[\\\]^\{|}~])/g, '\\$1');
=> "#uppy-screenshot\/from\/2019\/07\/10\/06\/34\/34\/png-10-10-1d-1d-10-1d-1d-1e-image\/png-25444-1562758476913"
let test2 = "#uppy_" + fileId.replace(/[!"#$%&'()*+,.\/:;<=>?@[\\\]^`{|}~]/g, "\\\\$&")
=> "#uppy-screenshot\\/from\\/2019\\/07\\/10\\/06\\/34\\/34\\/png-10-10-1d-1d-10-1d-1d-1e-image\\/png-25444-1562758476913"
let test3 = "#uppy_" + fileId.replace(/[!"#$%&'()*+,.\/:;<=>?@[\\\]^`{|}~]/g, "\\$&")
=> "#uppy-screenshot\/from\/2019\/07\/10\/06\/34\/34\/png-10-10-1d-1d-10-1d-1d-1e-image\/png-25444-1562758476913"
$files.find(test1) =>
jQuery.fn.init [prevObject: jQuery.fn.init(11), context: document, selector: "#uppy-screenshot\/from\/2019\/07\/10\/06\/34\/34\/…-1d-1d-10-1d-1d-1e-image\/png-25444-1562758476913"]
context:document
length:0
Evidently it doesn't like doubles for forward slashes, so test2 is out...
$files.find(test2) =>
Uncaught Error: Syntax error, unrecognized expression: #uppy-screenshot\\/from\\/2019\\/07\\/10\\/06\\/34\\/34\\/png-10-10-1d-1d-10-1d-1d-1e-image\\/png-25444-1562758476913
$files.find(test3) =>
jQuery.fn.init [prevObject: jQuery.fn.init(11), context: document, selector: "#uppy-screenshot\/from\/2019\/07\/10\/06\/34\/34\/…-1d-1d-10-1d-1d-1e-image\/png-25444-1562758476913"]
context:document
length:0
And what's throwing me for a loop is, if I go into the list item itself, it clearly states the id matches what I'm attempting to select with test1 and test3 (albeit, without the escaped characters)
$files.first()
jQuery.fn.init [li#uppy_uppy-screenshot/from/2019/07/10/06/34/34/png-10-10-1d-1d-10-1d-1d-1e-image/png-25444-1562758…, prevObject: jQuery.fn.init(11), context: document]
0:li#uppy_uppy-screenshot/from/2019/07/10/06/34/34/png-10-10-1d-1d-10-1d-1d-1e-image/png-25444-1562758476913.uppy-u-reset.uppy-DashboardItem
...
id:"uppy_uppy-screenshot/from/2019/07/10/06/34/34/png-10-10-1d-1d-10-1d-1d-1e-image/png-25444-1562758476913"
Any ideas? Is it something that's been right under my nose this whole time?
The only characters in fileId that need to be escaped are / and .. This appears to work for me.
let test1 = fileId.replace(/[\/.]/g, "\\$&");
And since you're searching for elements in the top-level $files collection, you should be using .filter(), not .find(). The latter only searches descendants, not the top-level elements.
$files.filter(test1)
You could use .find() this way:
$("#uppy-form .uppy-Dashboard-files").find(test1)