38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
import { isDeepKey } from '../_internal/isDeepKey.mjs';
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import { isIndex } from '../_internal/isIndex.mjs';
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import { isArguments } from '../predicate/isArguments.mjs';
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import { toPath } from '../util/toPath.mjs';
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function hasIn(object, path) {
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if (object == null) {
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return false;
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}
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let resolvedPath;
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if (Array.isArray(path)) {
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resolvedPath = path;
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}
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else if (typeof path === 'string' && isDeepKey(path) && object[path] == null) {
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resolvedPath = toPath(path);
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}
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else {
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resolvedPath = [path];
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}
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if (resolvedPath.length === 0) {
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return false;
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}
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let current = object;
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for (let i = 0; i < resolvedPath.length; i++) {
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const key = resolvedPath[i];
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if (current == null || !(key in Object(current))) {
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const isSparseIndex = (Array.isArray(current) || isArguments(current)) && isIndex(key) && key < current.length;
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if (!isSparseIndex) {
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return false;
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}
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}
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current = current[key];
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}
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return true;
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}
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export { hasIn };
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