42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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const isDeepKey = require('../_internal/isDeepKey.js');
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const isIndex = require('../_internal/isIndex.js');
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const isArguments = require('../predicate/isArguments.js');
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const toPath = require('../util/toPath.js');
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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.isDeepKey(path) && object[path] == null) {
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resolvedPath = toPath.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.isArguments(current)) && isIndex.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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exports.hasIn = hasIn;
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