Validation function
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const ERROR_MESSAGES = {
requried:'Required',
short: 'Too short',
long: 'Too long'
};
const formConfig = {
title: {
type: 'text',
requried: true,
minLength: 3
},
text: {
type: 'text'
}
};
const errorFields = {};
const validate = (fields)=> {
Object.keys(fields).forEach((key, idx) => {
const value = fields[key];
if (!!formConfig[key].requried && !value.length) {
errorFields[key] = [...errorFields[key], ERROR_MESSAGES.requried];
}
if (!!formConfig[key].minLength && value.length <= formConfig[key].minLength) {
errorFields[key] = [...errorFields[key], ERROR_MESSAGES.short];
}
if (!!formConfig[key].maxLength && value.length > formConfig[key].maxLength) {
errorFields[key] = [...errorFields[key], ERROR_MESSAGES.long];
}
});
// return errorFields;
console.log(errorFields);
return !Boolean(Object.values(errorFields).filter(errors => errors.length).length);
};
const fields = ({title: '', text: 'aaaaaaa'});
Object.keys(formConfig).forEach(key => errorFields[key] = []);
const result = validate(fields);
console.log({result});
JavaScript
INFO