24 lines
833 B
TypeScript
24 lines
833 B
TypeScript
/**
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* Checks if the given value is a `WeakMap`.
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*
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* This function tests whether the provided value is an instance of `WeakMap`.
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* It returns `true` if the value is a `WeakMap`, and `false` otherwise.
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*
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* This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `WeakMap`.
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*
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* @param {unknown} value - The value to test if it is a `WeakMap`.
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* @returns {value is WeakMap<WeakKey, any>} true if the value is a `WeakMap`, false otherwise.
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*
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* @example
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* const value1 = new WeakMap();
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* const value2 = new Map();
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* const value3 = new Set();
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*
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* console.log(isWeakMap(value1)); // true
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* console.log(isWeakMap(value2)); // false
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* console.log(isWeakMap(value3)); // false
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*/
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declare function isWeakMap(value: unknown): value is WeakMap<WeakKey, any>;
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export { isWeakMap };
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