how can i ensure there is no content that appears more than once after the '/'

Question

I have a string which displays a path. The issue is sometimes the path contains the same text more than once after the '/' as shown below. I want to ensure that if that happens, the content is removed. How can I solve this?

// A $( document ).ready() block.
$( document ).ready(function() {
    console.log( "ready!" );
     const trimEnd = str => str.endsWith('/') ? str.slice(0, -1) :
                            str;
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="hidden" name="FilePath" id="FilePath" value="/content/enforced/12063-CC-125/12063-CC-125/">

Use a regular expression with a back-reference to detect duplicate substrings. — Barmar, Jul 08 '21 at 19:14
So `/content/enforced/12063-CC-125/12063-CC-125/` becomes `/content/enforced/12063-CC-125/`? — Spectric, Jul 08 '21 at 19:15
@Barmar, I think splitting the string into an array and then using a `Set` to remove duplicate values would work in this case, I was going to answer when you closed it :) — yaakov, Jul 08 '21 at 19:18
@YaakovAinspan Someone else managed to post an answer anyway. — Barmar, Jul 08 '21 at 19:22

score 1 · Accepted Answer · answered Jul 08 '21 at 19:17

1

Split by /, get unique values with Set and the spread operator and join:

const str = "/content/enforced/12063-CC-125/12063-CC-125/";
const res = [...new Set(str.split("/"))].join('/');
console.log(res);

answered Jul 08 '21 at 19:17

Spectric

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Is `Set` guaranteed to maintain the original ordering? – Barmar Jul 08 '21 at 19:19
@Barmar Apparently [it does](https://stackoverflow.com/questions/55460303/why-does-js-keep-insertion-order-in-set) – Spectric Jul 08 '21 at 19:21
1

I aslso assumed from the example that they only care about duplicates that are adjacent, but maybe that's not a concern. – Barmar Jul 08 '21 at 19:22

how can i ensure there is no content that appears more than once after the '/'

1 Answers1