locutus
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Locutus other languages' standard libraries to JavaScript for fun and educational purposes
43 lines (42 loc) • 1.72 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.array_search = array_search;
function array_search(needle, haystack, argStrict) {
// discuss at: https://locutus.io/php/array_search/
// parity verified: PHP 8.3
// original by: Kevin van Zonneveld (https://kvz.io)
// input by: Brett Zamir (https://brett-zamir.me)
// bugfixed by: Kevin van Zonneveld (https://kvz.io)
// bugfixed by: Reynier de la Rosa (https://scriptinside.blogspot.com.es/)
// example 1: array_search('zonneveld', {firstname: 'kevin', middle: 'van', surname: 'zonneveld'})
// returns 1: 'surname'
// example 2: array_search('3', {a: 3, b: 5, c: 7})
// returns 2: 'a'
const strict = Boolean(argStrict);
if (needle instanceof RegExp) {
// Duck-type for RegExp
let regex = needle;
if (!strict) {
// Let's consider case sensitive searches as strict
const flags = 'i' +
(needle.global ? 'g' : '') +
(needle.multiline ? 'm' : '') +
// sticky is FF only
(needle.sticky ? 'y' : '');
regex = new RegExp(needle.source, flags);
}
for (const [key, value] of Object.entries(haystack)) {
if (regex.test(String(value))) {
return key;
}
}
return false;
}
for (const [key, value] of Object.entries(haystack)) {
// biome-ignore lint/suspicious/noDoubleEquals: non-strict comparison intended
if ((strict && value === needle) || (!strict && value == needle)) {
return key;
}
}
return false;
}