<h2 id="heading-url">URL</h2>
<p><a target="_blank" href="https://leetcode.com/problems/clear-digits/description/?envType=daily-question&amp;envId=2025-02-10">Clear Digits - LeetCode</a></p>
<h2 id="heading-code">Code</h2>
<p><a target="_blank" href="https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202502/clear_digits/main.fsx">https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202502/clear_digits/main.fsx</a></p>
<pre><code class="lang-fsharp"><span class="hljs-keyword">let</span> clearDigits (s: string) : string =
    s
    |&gt; Seq.fold
        (<span class="hljs-keyword">fun</span> acc c -&gt;
            <span class="hljs-keyword">if</span> System.Char.IsAsciiDigit(c) <span class="hljs-keyword">then</span>
                <span class="hljs-keyword">match</span> acc <span class="hljs-keyword">with</span>
                | [] -&gt; []
                | _ :: t -&gt; t
            <span class="hljs-keyword">else</span>
                c :: acc)
        []
    |&gt; List.rev
    |&gt; System.String.Concat
</code></pre>


## URL

[Clear Digits - LeetCode](https://leetcode.com/problems/clear-digits/description/?envType=daily-question&envId=2025-02-10)

## Code

[https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202502/clear\_digits/main.fsx](https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202502/clear_digits/main.fsx)

```fsharp
let clearDigits (s: string) : string =
    s
    |> Seq.fold
        (fun acc c ->
            if System.Char.IsAsciiDigit(c) then
                match acc with
                | [] -> []
                | _ :: t -> t
            else
                c :: acc)
        []
    |> List.rev
    |> System.String.Concat
```

LeetCode 3174. Clear Digits in F#

URL

Code