locutus
Version:
Locutus other languages' standard libraries to JavaScript for fun and educational purposes
30 lines (29 loc) • 1.53 kB
JavaScript
export function nl2br(str, isXhtml) {
// discuss at: https://locutus.io/php/nl2br/
// parity verified: PHP 8.3
// original by: Kevin van Zonneveld (https://kvz.io)
// improved by: Philip Peterson
// improved by: Onno Marsman (https://twitter.com/onnomarsman)
// improved by: Atli Þór
// improved by: Brett Zamir (https://brett-zamir.me)
// improved by: Maximusya
// bugfixed by: Onno Marsman (https://twitter.com/onnomarsman)
// bugfixed by: Kevin van Zonneveld (https://kvz.io)
// bugfixed by: Reynier de la Rosa (https://scriptinside.blogspot.com.es/)
// input by: Brett Zamir (https://brett-zamir.me)
// example 1: nl2br("Kevin\nvan\nZonneveld")
// returns 1: "Kevin<br />\nvan<br />\nZonneveld"
// example 2: nl2br("\nOne\nTwo\n\nThree\n", false)
// returns 2: "<br>\nOne<br>\nTwo<br>\n<br>\nThree<br>\n"
// example 3: nl2br("\nOne\nTwo\n\nThree\n", true)
// returns 3: "<br />\nOne<br />\nTwo<br />\n<br />\nThree<br />\n"
// example 4: nl2br(null)
// returns 4: ''
// Some latest browsers when str is null return and unexpected null value
if (typeof str === 'undefined' || str === null) {
return '';
}
// Adjust comment to avoid issue on locutus.io display
const breakTag = isXhtml || typeof isXhtml === 'undefined' ? '<br ' + '/>' : '<br>';
return (str + '').replace(/(\r\n|\n\r|\r|\n)/g, breakTag + '$1');
}