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delete-fifo.html
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<!DOCTYPE html>
<html lang="en">
<head>
<!--__GOLF_REDIRECT__-->
<title>Delete fifo</title>
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<script>
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<!--GOLFMENU13-->
<!--GOLFENDMENU13-->
<!--BEGVDOC90-->
<div class='vhub' style='margin-top:10px;margin-right:20px;text-align:right;background-color:white;'><a href='https://golf-lang.com' style='border-bottom:0px'><img src='https://golf-lang.com/golf.png'/></a></div><div class='vhub' style='margin-top:10px;'> Delete fifo</div><hr/><span style="font-weight:bold;">Purpose</span>: Delete FIFO list elements up to the last one read, including.<br/>
<br/>
<div class='code' style='position:relative;padding-right:16px;'>
<pre id='code_408'>
<span class="Statement"> delete-fifo</span> <list></pre>
<span id=golf_copied_408 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='golft_408' style='position: absolute;left: -500%;'></textarea>
<img src='https://golf-lang.com/golf-copy-small-1.png' id='golfb' onclick='gg_copy(golft_408, code_408, golf_copied_408)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
delete-fifo will delete all leading elements from the FIFO <list> up to the last one read, including. <list> was created by <a href='https://golf-lang.com/new-fifo.html'>new-fifo</a>. <br/>
<br/>
Right after <a href='https://golf-lang.com/rewind-fifo.html'>rewind-fifo</a>, no element was read yet, and delete-fifo will have no effect. After any <a href='https://golf-lang.com/read-fifo.html'>read-fifo</a>, delete-fifo wil delete all elements up to the element read, including that element.<br/>
<div class="vsub"><a id="Examples"></a>Examples</div>
<div class='code' style='position:relative;padding-right:16px;'>
<pre id='code_409'>
<span class="Statement"> new-fifo</span> mylist
<span class="Comment">// Add data to the list</span>
<span class="Statement"> write-fifo</span> mylist<span class="Identifier"> key</span> <span class="Constant">"key1"</span><span class="Identifier"> value</span> <span class="Constant">"value1"</span>
<span class="Statement"> write-fifo</span> mylist<span class="Identifier"> key</span> <span class="Constant">"some2"</span><span class="Identifier"> value</span> <span class="Constant">"other2"</span>
<span class="Comment">// Get first data from the list</span>
<span class="Statement"> read-fifo</span> mylist<span class="Type"> key</span> k<span class="Type"> value</span> v
<span class="Comment">// Delete first element from the list, so list will have only </span><span class="Constant">"some2"</span><span class="Comment"> key</span>
<span class="Statement"> delete-fifo</span> mylist</pre>
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<textarea id='golft_409' style='position: absolute;left: -500%;'></textarea>
<img src='https://golf-lang.com/golf-copy-small-1.png' id='golfb' onclick='gg_copy(golft_409, code_409, golf_copied_409)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
<div class="vsub"><a id="See also"></a>See also</div>
<a name='FIFO'></a><span style="font-weight:bold;">FIFO</span><br/>
<a href='https://golf-lang.com/delete-fifo.html'>delete-fifo</a> <br/>
<a href='https://golf-lang.com/new-fifo.html'>new-fifo</a> <br/>
<a href='https://golf-lang.com/purge-fifo.html'>purge-fifo</a> <br/>
<a href='https://golf-lang.com/read-fifo.html'>read-fifo</a> <br/>
<a href='https://golf-lang.com/rewind-fifo.html'>rewind-fifo</a> <br/>
<a href='https://golf-lang.com/write-fifo.html'>write-fifo</a> <br/>
<span style="font-weight:bold;">See all</span> <br/>
<a href='https://golf-lang.com/documentation.html'>documentation</a><br/>
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