| 1 | import { maybe } from "../globals/index.js";
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| 2 | export var canUseWeakMap = typeof WeakMap === 'function' &&
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| 3 | maybe(function () { return navigator.product; }) !== 'ReactNative';
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| 4 | export var canUseWeakSet = typeof WeakSet === 'function';
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| 5 | export var canUseSymbol = typeof Symbol === 'function' &&
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| 6 | typeof Symbol.for === 'function';
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| 7 | export var canUseAsyncIteratorSymbol = canUseSymbol && Symbol.asyncIterator;
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| 8 | export var canUseDOM = typeof maybe(function () { return window.document.createElement; }) === "function";
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| 9 | var usingJSDOM = maybe(function () { return navigator.userAgent.indexOf("jsdom") >= 0; }) || false;
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| 10 | export var canUseLayoutEffect = canUseDOM && !usingJSDOM;
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| 11 | |
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