summaly/src/utils/null-or-empty.ts
2017-03-11 10:40:20 +09:00

12 lines
211 B
TypeScript

export default function(val: string): boolean {
if (val === undefined) {
return true;
} else if (val === null) {
return true;
} else if (val.trim() === '') {
return true;
} else {
return false;
}
}