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35 lines (30 loc) 路 678 Bytes
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// longhand
function validate(values) {
if (!values.first) return false;
if (!values.last) return false;
return true;
}
console.log(validate({ first: 'Bruce', last: 'Wayne' })); // true
// Shorthand:
// object validation rules
const schema = {
first: {
required: true
},
last: {
required: true
}
};
// universal validation function
const validate = (schema, values) => {
for (field in schema) {
if (schema[field].required) {
if (!values[field]) {
return false;
}
}
}
return true;
};
console.log(validate(schema, { first: 'Bruce' })); // false
console.log(validate(schema, { first: 'Bruce', last: 'Wayne' })); // true