javascript - JQuery exclude one field from validation -

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I created this code to validate the checkout form. But there is an area which is not needed. All other areas are required to exclude this field, how can I modify my code, and if this field is full and is not empty then just add class 'valid'.

Is there any such suggestion for me? Validate the checkout field $ ('#outout-data input'). ECH (function () {$ (this) .change (function () {if ($ (this) .val (). Length & lt; 1) {$ (this) .removeClass ('valid') .addClass ('invalid');} and {$ (this) .removeClass ('invalid') .addClass ('valid ');}});});

Require a required class to input Field and then change your code, 

  $ ('#outoutout-data input.required') .each (function () {$ (this) .change (function ( ) ($ (This) .removeClass ('valid'). AddClass ('invalid');} and {$ (this) .removeClass ('invalid') AddClass

In addition, $. Not required for each like, 

  $ ('#outout-data input .required'). Change (function (if (this.value.length & lt; 1) {$ (this) .removeClass ('valid'). AddClass ('invalid');} and {$ (remove this) RemoveClass ('invalid') .addClass ('valid');}});


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