What is the proper way to indicate "if the value is anything other than a, b, or c"?

Question

What is the proper way to indicate "if the value is anything other than a, b, or c"?

$(this).attr('id') == 'zipcode' && $this.value()!=(3, 4, 5)

In this snippet of code, I attempted to target the text input field with an id of "zipcode" and implement a condition that checks whether the value of zipcode is not equal to 3, 4, or 5. Despite trying various combinations like ||, I have been unsuccessful in achieving the desired outcome. I aim to list out all possible zip codes and am seeking the most efficient approach to do so.

Your assistance is greatly appreciated.

Here is the complete code:

function validateStep(step){ 
    if(step == fieldsetCount) return;

    var error = 1;
    var hasError = false;
    
    $('#formElem').children(':nth-child('+ parseInt(step) +')').find(':input.req:not(button)').each(function(){
        var $this = $(this);
        var valueLength = jQuery.trim($this.val()).length;
        var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/; 

        if(valueLength == "" || ($(this).attr('id') =='email' && !emailPattern.test($this.val())) || ($(this).attr('id') == 'zipcode' && $this.value()!=(3, 4, 5)))   {
            hasError = true;
            $this.css('background-color','#FFEDEF');
        } else {
            $this.css('background-color','#fff');
        }
    });
}

jquery

Answer 1

Answer №1

To achieve this, you can utilize the indexOf method:

var items = [6,7,8,9];
var item = parseInt($(this).val());
if(items.indexOf(item) == -1) {
    //execute
}

Answer 2

To achieve this, you can utilize the indexOf method:

var items = [6,7,8,9];
var item = parseInt($(this).val());
if(items.indexOf(item) == -1) {
    //execute
}

Answer 3

Answer №2

This is a brief example:

$(this).attr('id') == 'zipcode' && $this.value() < 3 && $this.value() > 5

Answer 4

This is a brief example:

$(this).attr('id') == 'zipcode' && $this.value() < 3 && $this.value() > 5

Answer 5

Answer №3

//
//  do it like so
//
function checkNotEqual( value /* ...params*/ ) {
    return Array.prototype.slice.call( arguments, 1 ).every( function ( arg ) { return value !== arg; } );
}
//

Answer 6

//
//  do it like so
//
function checkNotEqual( value /* ...params*/ ) {
    return Array.prototype.slice.call( arguments, 1 ).every( function ( arg ) { return value !== arg; } );
}
//

Answer 7

Answer №4

I always enjoy enhancing the functionality of the String prototype. Let me show you an example.

String.prototype.isNot = function() {
    for( var i = 0; i < arguments.length; i++ ) {
        if( this == arguments[i] ) return false;
    }
    return true;
};

Now, you can use it like this:

var value = 'something';

if( value.isNot('value1', 'value2') ) // returns true

And also like this:

if( value.isNot('something') ) // returns false

If extending the String.prototype doesn't suit your preference, you can try this alternative approach.

var isNot = function( value, args ) {
   for( var i = 0; i < args.length; i++ ) {
       if( value == args[i] ) return false;
   }
   return true;
}

Then use it in a similar manner:

var value = 'something';

if( isNot(value, ['value1', 'value2']) ) // returns true

And finally:

if( isNot(value, ['something']) ) // returns false

Answer 8

I always enjoy enhancing the functionality of the String prototype. Let me show you an example.

String.prototype.isNot = function() {
    for( var i = 0; i < arguments.length; i++ ) {
        if( this == arguments[i] ) return false;
    }
    return true;
};

Now, you can use it like this:

var value = 'something';

if( value.isNot('value1', 'value2') ) // returns true

And also like this:

if( value.isNot('something') ) // returns false

If extending the String.prototype doesn't suit your preference, you can try this alternative approach.

var isNot = function( value, args ) {
   for( var i = 0; i < args.length; i++ ) {
       if( value == args[i] ) return false;
   }
   return true;
}

Then use it in a similar manner:

var value = 'something';

if( isNot(value, ['value1', 'value2']) ) // returns true

And finally:

if( isNot(value, ['something']) ) // returns false

Answer 9

Answer №5

$(this).attr('id') == 'zipcode' && !/^(3|4|5)$/.test($(this).val())

Answer 10

$(this).attr('id') == 'zipcode' && !/^(3|4|5)$/.test($(this).val())

What is the proper way to indicate "if the value is anything other than a, b, or c"?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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