How to remove Options from One Select Box and retain One Option?

One can easily remove  options of a select box from HTML and append it to another select by making use of simple jQuery functions such as append() , remove().Nevertheless when dealing with Select Element one important thing you should bear in mind is that though modifying select element is not different from other DOM elements but some basic things should be kept in mind such as not to use the DOM directly but rather create HTML strings instead.

With jQuery remove() and append() methods for select element, what was once a headache in the park has become a walk in the park.

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<Select id="selectBox"> </Select>

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$('#selectBox').find('option').remove()
.end().append('<option value="any">text</option>')
.val('any');