10 examples of 'name validation in javascript only alphabets' in JavaScript

75
function validateName(name) {
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    var result = {
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        hasViolation: false,
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        message: ''
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    };
80
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    if (name === '') {
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        result.hasViolation = true;
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        result.message = (parameters.isSet ? 'Set' : 'Pointer') + ' must have a non-empty name.';
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    } else if (parameters.notAllowedNames.indexOf(name) > -1) {
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        result.hasViolation = true;
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        result.message = 'Name "' + name + '" is already used for a ' +
87
            (parameters.isSet ? 'pointer' : 'set') + ' or ' + 'an aspect.';
88
    } else if (REGEXP.DOCUMENT_KEY.test(name) === false) {
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        result.hasViolation = true;
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        result.message = 'Name "' + name + '" contains illegal characters, it may not contain "." ' +
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            'or start with "$" or "_".';
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    } else {
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        if (_endsWith(name, CONSTANTS.CORE.COLLECTION_NAME_SUFFIX)) {
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            result.hasViolation = true;
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            result.message = 'Name "' + name + '" ends with "' + CONSTANTS.CORE.COLLECTION_NAME_SUFFIX + '", ' +
96
                'which could lead to collisions with data stored for inverse pointers.';
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        } else if (name === CONSTANTS.CORE.BASE_POINTER) {
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            result.hasViolation = true;
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            result.message = 'Name "' + CONSTANTS.CORE.BASE_POINTER + '" is reserved for base/instance ' +
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                'relationship.';
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        } else if (name === CONSTANTS.CORE.MEMBER_RELATION) {
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            result.hasViolation = true;
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            result.message = 'Name "' + CONSTANTS.CORE.MEMBER_RELATION + '" is reserved for ' +
104
                'set membership.';
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        } else if (name === CONSTANTS.CORE.OVERLAYS_PROPERTY) {
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            result.hasViolation = true;
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            result.message = 'Name "' + name + '" is a reserved key word.';
108
        }
109
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        if (parameters.isSet && (name === 'src' || name === 'dst')) {
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            result.hasViolation = true;
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            result.message = 'Name "' + name + '" can only be used for pointer names and not for sets.';
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        }
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    }
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    return result;
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}

45
function validateName (name) {
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  const $field = document.querySelector('#name').parentNode;
47
  if (!name) {
48
    $field.setAttribute('data-invalid', "Name is Required")
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    return false
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  }
51
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  if (/\s/.test(name)) {
53
    $field.setAttribute('data-invalid', "A name can't have white space")
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    return false
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  }
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  return true
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}

13
static isName(name) {
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    if ( !isEmpty(name) && matches(name, /^[0-9a-z \']+$/i)) return true;
15
    else return false;
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}

735
function validate(name) {
736
  return !error(name) ? name : null;
737
}

106
function isValidName(name) {
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  return NAME_REG_EXP.test(name);
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}

66
validateName(name) {
67
  if (~this.reservedKeys.indexOf(name)) {
68
    throw new Error(`Field name ${name} is a reserved key`);
69
  }
70
}

62
validateName(name: string) {
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  if (name.length > 255) {
64
    return translate('onboarding.create_project.display_name.error');
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  }
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  return undefined;
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}

1
function valid_name(e) {
2
	/* 50 Characters or less, following are not allowed: ' , + */
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	// TODO - Wait, do we really not allow single quotes? I forget 
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	var re_name = new RegExp("[+\',]", "g");
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	if (e.value.length > 50 || re_name.test(e.value)) {
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		e.style.color='#F00';
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	} else {
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		e.style.color='#000';
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	} 
11
}

180
function __isValidName__(name) {
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  // test if name contains only valid characters
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  return name.match(re_validName);
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}

1226
function isValidName(str) {
1227
    return /^[_a-zA-Z0-9-]+$/.test(str);
1228
}