Convert pure javascript to jquery -

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i want convert pure javascript jquery, code lines containing specified search text removed. here code:

my code on jsfiddle: http://jsfiddle.net/v306rzhg/4

<body> search lines for:     <input type="text" id="addfield0" value="sometimes|relevance|understand" style="width:100%; margin-top:10px;" />     <input type="button" style="margin-top:10px;" value="remove lines containing..." onclick="if(document.getelementbyid('addfield0').value!='') {removelines('containing');}" />     <input type="button" value="not containing..." onclick="if(document.getelementbyid('addfield0').value!='') {removelines('notcontaining');}" />     <textarea id="input_output" style="width:100%; margin-top:10px; height:150px; resize:none;" wrap="off">sometimes understand word's     meaning need more definition.     @ dictionary try give of tools     need understand word means.     seeing word in sentence can     provide more context , relevance.</textarea>     <textarea id="removed_box" rows="4" style="width:100%; margin-top:10px; height:150px; resize:none;" wrap="off"></textarea>         </body>     </html>

in jquery

here's how call element;

instead of 

document.getelementbyid('addfield0')

just use

$('#addfield0')

example when getting value:

 $('#addfield0').val()

note: make sure reference jquery

<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>

downlaod jquery here


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