javascript - Js regex for password validation match -

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i using following regex in conjunction abide foundation validating password:

<form id="setpassword" action="{{ url('changepasswordwithouttoken') }}" method="post" class="account setpassword" data-abide="ajax" novalidate="novalidate"> {{ csrftoken() }}     <input type="hidden" name="token" value="{{ data.token }}"/>     <div class="row">         <div class="large-12 columns"><p>{{ 'pleasechooseapassword'|trans }}</p></div>         <div class="large-12 columns">             <label class="password" for="setpasswordfield">                 <input type="password" id="setpasswordfield" name="setpasswordfield"  pattern="passwordadditional" required placeholder="{{ 'accountloginlabelpassword'|trans }}" />                 <small class="error">{{ 'passwordshouldcontain'|trans }}</small>             </label>         </div>     </div>     <div class="row">         <div class="large-12 columns">             <label class="confirmpassword" for="confirmsetpassword">                 <input type="password" id="confirmsetpassword"  name="confirmsetpassword" data-equalto="setpasswordfield" required placeholder="{{ 'confirmpassword'|trans }}" />                 <small class="error">{{ 'accountregistrationerrordifferentpasswords'|trans }}</small>             </label>         </div>     </div>     <div class="row">         <div class="small-12 medium-5 large-4 columns">             <button type="submit" class="button" id="setpasswordbtn">{{ 'savechanges'|trans }}</button>         </div>     </div>

js:

patterns: { passwordadditional: /^(?=.[a-z])(?=.[a-z])(?=.\d)(?=.[_\w\s]).{8,}/ }

it deosn't seem pick symbol, when enter new password without symbol validation message disappears. shouldn't haven't inserted symbol inside new password. regex wrong?

your regex wrong, there 2 mistakes made:

(?=.[a-z]) looking ahead single character followed lowercase letter, intention find lowercase letter in string, . should modified * (0 or more times)

(?=.[_\w\s]) looking ahead single character followed either underscore or non-word or non-space, litereally everything. seems check symbol, match (if there @ least 2 characters). use negation achieve this, (?=.*[^a-za-z0-9\s])

this leads following regex

/^(?=.*[a-z])(?=.*[a-z])(?=.*\d)(?=.*[^a-za-z0-9\s]).{8,}$/

you can @ https://regex101.com/r/dg9xl8/1 demo.


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