locutus
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Locutus other languages' standard libraries to JavaScript for fun and educational purposes
17 lines (16 loc) • 686 B
JavaScript
export function delete_suffix(str, suffix) {
// parity verified: Ruby 3.3
// discuss at: https://locutus.io/ruby/String/delete_suffix/
// original by: Kevin van Zonneveld (https://kvz.io)
// note 1: Removes suffix when present and otherwise returns the original string unchanged.
// example 1: delete_suffix('value-suffix', '-suffix')
// returns 1: 'value'
// example 2: delete_suffix('value', 'x')
// returns 2: 'value'
const input = str + '';
const needle = suffix + '';
if (needle === '') {
return input;
}
return input.endsWith(needle) ? input.slice(0, -needle.length) : input;
}