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// |
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'use strict'; |
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function cacheWrapper (cache , key , fn ) { |
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if (!cache) { |
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return fn(); |
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} |
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const cached = cache.get(key); |
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if (cached !== undefined) { |
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return cached; |
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} |
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const result = fn(); |
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cache.set(key, result); |
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return result; |
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} |
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module.exports = cacheWrapper;
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