ajt-validator
Version:
Validation library for JavaScript and TypeScript
60 lines (59 loc) • 2.04 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ajtValidator = void 0;
const ajtValidator = (input) => {
let pattern = '^'; // Start with beginning anchor for regex
let flags = 'g'; // Default regex flags
return {
// Validate if the input is a string
isString() {
if (typeof input !== 'string') {
throw new Error('Input is not a string');
}
return this;
},
// Set the maximum length constraint
maxLen(max) {
pattern += `.{0,${max}}$`; // Ends with a max length constraint
return this;
},
// Set the minimum length constraint
minLen(min) {
pattern = pattern.replace(/\^/, `^.{${min},`); // Start with min length constraint
return this;
},
// Allow specific character types (e.g., alphanumeric, digits, special characters)
isAllow(type) {
let charClass = '';
switch (type) {
case 'alphanumeric':
charClass = '[a-zA-Z0-9]';
break;
case 'digits':
charClass = '\\d';
break;
case 'letters':
charClass = '[a-zA-Z]';
break;
case 'special':
charClass = '[!@#$%^&*]';
break;
default:
throw new Error(`Unsupported type: ${type}`);
}
pattern = pattern.replace(/\$/, `${charClass}*$`); // Append allowed characters
return this;
},
// Make the regex case-insensitive
caseInsensitive() {
flags += 'i';
return this;
},
// Build and test the final regex pattern
validate() {
const regex = new RegExp(pattern, flags);
return regex.test(input);
}
};
};
exports.ajtValidator = ajtValidator;