Created
January 10, 2016 21:18
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| const memoize = (fn) => { | |
| let cache = {}, key; | |
| return (...args) => { | |
| key = JSON.stringify(args); | |
| return cache[key] || (cache[key] = fn.call(null, ...args)); | |
| } | |
| }; |
Hey! That's a great point. I guess it doesn't make sense to talk about memoizing functions that do not take any arguments. The other problem with this approach is that JSON.stringify() is a relatively slow call to make!
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what if the function do not have any arument ?
the output cache may look like { '[]': '...'}