locutus
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Locutus other languages' standard libraries to JavaScript for fun and educational purposes
57 lines (56 loc) • 2.46 kB
JavaScript
const asArray = (value) => (Array.isArray(value) ? [...value] : [value]);
export function str_ireplace(search, replace, subject, countObj) {
// discuss at: https://locutus.io/php/str_ireplace/
// original by: Glen Arason (https://CanadianDomainRegistry.ca)
// bugfixed by: Mahmoud Saeed
// note 1: Case-insensitive version of str_replace()
// note 1: Compliant with PHP 5.0 str_ireplace() Full details at:
// note 1: https://ca3.php.net/manual/en/function.str-ireplace.php
// note 2: The countObj parameter (optional) if used must be passed in as a
// note 2: object. The count will then be written by reference into it's `value` property
// example 1: str_ireplace('M', 'e', 'name')
// returns 1: 'naee'
// example 2: var $countObj = {}
// example 2: str_ireplace('M', 'e', 'name', $countObj)
// example 2: var $result = $countObj.value
// returns 2: 1
// example 3: str_ireplace('', '.', 'aaa')
// returns 3: 'aaa'
const loweredSearch = Array.isArray(search) ? search.map((item) => item.toLowerCase()) : search.toLowerCase();
const loweredSubject = Array.isArray(subject) ? subject.map((item) => item.toLowerCase()) : subject.toLowerCase();
const osa = Array.isArray(subject);
const f = asArray(loweredSearch);
const s = asArray(loweredSubject);
const os = asArray(subject);
let r = asArray(replace);
if (Array.isArray(loweredSearch) && typeof replace === 'string') {
r = loweredSearch.map(() => replace);
}
if (countObj) {
countObj.value = 0;
}
for (let i = 0, sl = s.length; i < sl; i++) {
if (s[i] === '') {
continue;
}
for (let j = 0, fl = f.length; j < fl; j++) {
const searchTerm = f[j] ?? '';
if (searchTerm === '') {
continue;
}
const temp = s[i] ?? '';
const repl = r[j] ?? '';
s[i] = temp.replaceAll(searchTerm, repl);
const otemp = os[i] ?? '';
const oi = temp.indexOf(searchTerm);
const ofjl = searchTerm.length;
if (oi >= 0) {
os[i] = otemp.replaceAll(otemp.substr(oi, ofjl), repl);
}
if (countObj) {
countObj.value = (countObj.value ?? 0) + temp.split(searchTerm).length - 1;
}
}
}
return osa ? os : (os[0] ?? '');
}