41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import { isString } from '../predicate/isString.mjs';
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import { isEqualsSameValueZero } from '../../_internal/isEqualsSameValueZero.mjs';
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import { toInteger } from '../util/toInteger.mjs';
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function includes(source, target, fromIndex, guard) {
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if (source == null) {
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return false;
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}
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if (guard || !fromIndex) {
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fromIndex = 0;
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}
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else {
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fromIndex = toInteger(fromIndex);
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}
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if (isString(source)) {
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if (fromIndex > source.length || target instanceof RegExp) {
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return false;
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}
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if (fromIndex < 0) {
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fromIndex = Math.max(0, source.length + fromIndex);
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}
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return source.includes(target, fromIndex);
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}
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if (Array.isArray(source)) {
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return source.includes(target, fromIndex);
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}
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const keys = Object.keys(source);
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if (fromIndex < 0) {
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fromIndex = Math.max(0, keys.length + fromIndex);
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}
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for (let i = fromIndex; i < keys.length; i++) {
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const value = Reflect.get(source, keys[i]);
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if (isEqualsSameValueZero(value, target)) {
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return true;
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}
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}
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return false;
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}
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export { includes };
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