<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Required By Condition</title>
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<link rel="stylesheet" href="demo.css">
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<script src="https://cdn.jsdelivr.net/jquery/1.12.3/jquery.min.js"></script>
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<script src="../dist/jquery.validator.min.js?local=en"></script>
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</head>
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<body>
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<form id="form1" class="form" data-validator-option="{timely:3,focusCleanup:true}">
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<h3>required( dependency-expression )</h3>
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<div class="form-item">
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<label for="isCompany"><input type="checkbox" id="isCompany" checked>Company</label>
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</div>
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<div class="form-item">
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<input type="text" name="companyName" data-rule="required(#isCompany:checked)">
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</div>
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<div class="form-item">
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<button type="submit">Submit</button>
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</div>
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</form>
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<form id="form2" class="form">
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<h3>required( dependency-callback )</h3>
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<div class="form-item">
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<label><input type="checkbox" id="isPersonal" checked>Personal</label>
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</div>
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<div class="form-item">
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<input type="text" name="email">
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</div>
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<div class="form-item">
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<button type="submit">Submit</button>
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</div>
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</form>
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<script>
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$('#form2').validator({
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timely: 3,
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focusCleanup: true,
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rules: {
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isPersonal: function() {
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return $('#isPersonal').prop('checked');
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}
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},
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fields: {
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email: 'required(isPersonal); email'
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}
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});
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</script>
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</body>
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</html>
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