How to remove option from selectbox options using Jquery

Here I am explaining how to remove an option from selectbox or combobox  options list using Jquery. Jquery is a powerful javascript library that provides a lot of predefined functions to achieve our needs. For removing the option, using remove function(remove()).   Add following script in onload function. $("#selectboxid option[value='value']").remove(); selectboxid = ID of your selectbox value = value of the option which you want to remove. $(document).ready(function()){    $("#select-id option[value='0']").remove(); }); Here option value 0 is removed while  the form load. http://api.jquery.com/remove/...

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Regular expression for validating US phone number

US phone number format validation using regular expression. The common US phone number format is 3digits-3digits-4digits eg: 222-333-3333       111-222-1234 The regular expression for validating this format is function usphone($string) {    if(preg_match('/^[0-9]{3}\-[0-9]{3}\-[0-9]{4}$/', $string)) {     return true;   }   else{     return false;   } } Validation using Javascript function isUSphone(phoneno) {    var filter = /^[0-9]{3}\-[0-9]{3}\-[0-9]{4}$/;    if (filter.test(phoneno))         returntrue;     else         return false;  } In Jquery if($("#phone-num").val().match(/^[0-9]{3}\-[0-9]{3}\-[0-9]{4}$/))...

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