javascript - jquery Telephone Format -


i trying output user inputted value of 1234567890 displayed 123-456-7890. below code, output expected when trying edit number, there weird issues. can please help.

$("input[type='tel']").keyup(function() {    if (this.value.length === 10) {      var number = this.value      this.value = number.substring(0, 3) + '-' + number.substring(3, 6) + '-' + number.substring(6, 10)    }  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>  <input class="form-control" placeholder="e.g.: 111-222-3333" type="tel" maxlength="10" />

the problem not removing "-" previous value. when keyup event fired, value has - previous keyup parse event.

why don´t remove "-" string, , run substring code?

it'd like

$("input[type='tel']").keyup(function() {   if (this.value.length === 10) {     var number = this.value.replace('-', '');     this.value = number.substring(0, 3) + '-' + number.substring(3, 6) + '-' + number.substring(6, 10)   } });

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