javascript - Jsp Alert If else statement -


for following want run script see if string equal when button clicked.

<wts:input label="chemical name todo" inputid="synname" path="chemicalname" maxlength="100" size="100"></wts:input> <div class="form-group">             <div class="col-md-offset-2 col-md-2">                    <input type="submit" value="search" id="searchbutton" class="btn btn-primary" onclick="unknownalert()" />                    <c:if test="${techview}">                         <input type="hidden" name="techview" value="${techview}">                     </c:if>                     <input type="reset" value="reset" id="resetbutton" class="btn btn-default"/>             </div>         </div>   <script> function unknownalert() {     if($('#synname') == 'unknown'){         alert("unknown working");     } } </script>

when user types in string, unknown or unknown, once search button clicked runs script know if alert. stuck on how check condition.

should be:

 if($('#synname').val() === 'unknown')

you want compare against value of input, not input (that's jquery dom object).

additionally if want case insensitive can use tolower() function before compare:

 if($('#synname').val().tolower() === 'unknown')

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