locutus
Version:
Locutus other languages' standard libraries to JavaScript for fun and educational purposes
21 lines (20 loc) • 685 B
JavaScript
export function isset(...values) {
// discuss at: https://locutus.io/php/isset/
// original by: Kevin van Zonneveld (https://kvz.io)
// improved by: FremyCompany
// improved by: Onno Marsman (https://twitter.com/onnomarsman)
// improved by: Rafał Kukawski (https://blog.kukawski.pl)
// example 1: isset( undefined, true)
// returns 1: false
// example 2: isset( 'Kevin van Zonneveld' )
// returns 2: true
if (values.length === 0) {
throw new Error('Empty isset');
}
for (const value of values) {
if (typeof value === 'undefined' || value === null) {
return false;
}
}
return true;
}