33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
import { identity } from '../../function/identity.mjs';
|
|
import { iteratee } from '../util/iteratee.mjs';
|
|
import { toInteger } from '../util/toInteger.mjs';
|
|
|
|
function findLast(source, _doesMatch = identity, fromIndex) {
|
|
if (!source) {
|
|
return undefined;
|
|
}
|
|
const length = Array.isArray(source) ? source.length : Object.keys(source).length;
|
|
fromIndex = toInteger(fromIndex ?? length - 1);
|
|
if (fromIndex < 0) {
|
|
fromIndex = Math.max(length + fromIndex, 0);
|
|
}
|
|
else {
|
|
fromIndex = Math.min(fromIndex, length - 1);
|
|
}
|
|
const doesMatch = iteratee(_doesMatch);
|
|
if (!Array.isArray(source)) {
|
|
const keys = Object.keys(source);
|
|
for (let i = fromIndex; i >= 0; i--) {
|
|
const key = keys[i];
|
|
const value = source[key];
|
|
if (doesMatch(value, key, source)) {
|
|
return value;
|
|
}
|
|
}
|
|
return undefined;
|
|
}
|
|
return source.slice(0, fromIndex + 1).findLast(doesMatch);
|
|
}
|
|
|
|
export { findLast };
|